From 9e1684f87aca7cd5a17fc10727f631835c882130 Mon Sep 17 00:00:00 2001 From: Adam Sawicki Date: Tue, 11 Jul 2017 15:27:08 +0200 Subject: [PATCH] Small fix in documentation. --- docs/html/index.html | 5 +- docs/html/vk__mem__alloc_8h_source.html | 72 ++++++++++++------------- src/vk_mem_alloc.h | 8 ++- 3 files changed, 46 insertions(+), 39 deletions(-) diff --git a/docs/html/index.html b/docs/html/index.html index 0893a7d..69b9e9c 100644 --- a/docs/html/index.html +++ b/docs/html/index.html @@ -143,7 +143,10 @@ Custom memory allocator

You can use custom memory allocator by filling optional member VmaAllocatorCreateInfo::pAllocationCallbacks. These functions will be passed to Vulkan, as well as used by the library itself to make any CPU-side allocations.

Thread safety

-

All calls to functions that take VmaAllocator as first parameter are safe to call from multiple threads simultaneously, synchronized internally when needed.

+
diff --git a/docs/html/vk__mem__alloc_8h_source.html b/docs/html/vk__mem__alloc_8h_source.html index 9504276..2294272 100644 --- a/docs/html/vk__mem__alloc_8h_source.html +++ b/docs/html/vk__mem__alloc_8h_source.html @@ -62,63 +62,63 @@ $(function() {
vk_mem_alloc.h
-Go to the documentation of this file.
1 //
2 // Copyright (c) 2017 Advanced Micro Devices, Inc. All rights reserved.
3 //
4 // Permission is hereby granted, free of charge, to any person obtaining a copy
5 // of this software and associated documentation files (the "Software"), to deal
6 // in the Software without restriction, including without limitation the rights
7 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 // copies of the Software, and to permit persons to whom the Software is
9 // furnished to do so, subject to the following conditions:
10 //
11 // The above copyright notice and this permission notice shall be included in
12 // all copies or substantial portions of the Software.
13 //
14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
20 // THE SOFTWARE.
21 //
22 
23 #ifndef AMD_VULKAN_MEMORY_ALLOCATOR_H
24 #define AMD_VULKAN_MEMORY_ALLOCATOR_H
25 
151 #include <vulkan/vulkan.h>
152 
154 
158 VK_DEFINE_HANDLE(VmaAllocator)
159 
160 typedef struct VmaAllocatorCreateInfo
162 {
164 
165  VkPhysicalDevice physicalDevice;
167 
168  VkDevice device;
170 
171  VkDeviceSize preferredLargeHeapBlockSize;
173 
174  VkDeviceSize preferredSmallHeapBlockSize;
176 
177  const VkAllocationCallbacks* pAllocationCallbacks;
178 } VmaAllocatorCreateInfo;
179 
181 VkResult vmaCreateAllocator(
182  const VmaAllocatorCreateInfo* pCreateInfo,
183  VmaAllocator* pAllocator);
184 
186 void vmaDestroyAllocator(
187  VmaAllocator allocator);
188 
193 void vmaGetPhysicalDeviceProperties(
194  VmaAllocator allocator,
195  const VkPhysicalDeviceProperties** ppPhysicalDeviceProperties);
196 
201 void vmaGetMemoryProperties(
202  VmaAllocator allocator,
203  const VkPhysicalDeviceMemoryProperties** ppPhysicalDeviceMemoryProperties);
204 
211 void vmaGetMemoryTypeProperties(
212  VmaAllocator allocator,
213  uint32_t memoryTypeIndex,
214  VkMemoryPropertyFlags* pFlags);
215 
216 typedef struct VmaStatInfo
217 {
218  uint32_t AllocationCount;
219  uint32_t SuballocationCount;
220  uint32_t UnusedRangeCount;
221  VkDeviceSize UsedBytes;
222  VkDeviceSize UnusedBytes;
223  VkDeviceSize SuballocationSizeMin, SuballocationSizeAvg, SuballocationSizeMax;
224  VkDeviceSize UnusedRangeSizeMin, UnusedRangeSizeAvg, UnusedRangeSizeMax;
225 } VmaStatInfo;
226 
228 struct VmaStats
229 {
230  VmaStatInfo memoryType[VK_MAX_MEMORY_TYPES];
231  VmaStatInfo memoryHeap[VK_MAX_MEMORY_HEAPS];
232  VmaStatInfo total;
233 };
234 
236 void vmaCalculateStats(
237  VmaAllocator allocator,
238  VmaStats* pStats);
239 
240 #ifndef VMA_STATS_STRING_ENABLED
241  #define VMA_STATS_STRING_ENABLED 1
242 #endif
243 
244 #if VMA_STATS_STRING_ENABLED
245 
247 
249 void vmaBuildStatsString(
250  VmaAllocator allocator,
251  char** ppStatsString,
252  VkBool32 detailedMap);
253 
254 void vmaFreeStatsString(
255  VmaAllocator allocator,
256  char* pStatsString);
257 
258 #endif // #if VMA_STATS_STRING_ENABLED
259 
262 
267 typedef enum VmaMemoryUsage
268 {
270  VMA_MEMORY_USAGE_UNKNOWN = 0,
272  VMA_MEMORY_USAGE_GPU_ONLY = 1,
274  VMA_MEMORY_USAGE_CPU_ONLY = 2,
276  VMA_MEMORY_USAGE_CPU_TO_GPU = 3,
278  VMA_MEMORY_USAGE_GPU_TO_CPU = 4,
279  VMA_MEMORY_USAGE_MAX_ENUM = 0x7FFFFFFF
280 } VmaMemoryUsage;
281 
282 typedef struct VmaMemoryRequirements
283 {
292  VkBool32 ownMemory;
297  VmaMemoryUsage usage;
301  VkMemoryPropertyFlags requiredFlags;
306  VkMemoryPropertyFlags preferredFlags;
313  VkBool32 neverAllocate;
314 } VmaMemoryRequirements;
315 
330 VkResult vmaFindMemoryTypeIndex(
331  VmaAllocator allocator,
332  uint32_t memoryTypeBits,
333  const VmaMemoryRequirements* pMemoryRequirements,
334  uint32_t* pMemoryTypeIndex);
335 
338 
355 VkResult vmaAllocateMemory(
356  VmaAllocator allocator,
357  const VkMemoryRequirements* pVkMemoryRequirements,
358  const VmaMemoryRequirements* pVmaMemoryRequirements,
359  VkMappedMemoryRange* pMemory,
360  uint32_t* pMemoryTypeIndex);
361 
369 VkResult vmaAllocateMemoryForBuffer(
370  VmaAllocator allocator,
371  VkBuffer buffer,
372  const VmaMemoryRequirements* pMemoryRequirements,
373  VkMappedMemoryRange* pMemory,
374  uint32_t* pMemoryTypeIndex);
375 
377 VkResult vmaAllocateMemoryForImage(
378  VmaAllocator allocator,
379  VkImage image,
380  const VmaMemoryRequirements* pMemoryRequirements,
381  VkMappedMemoryRange* pMemory,
382  uint32_t* pMemoryTypeIndex);
383 
385 void vmaFreeMemory(
386  VmaAllocator allocator,
387  const VkMappedMemoryRange* pMemory);
388 
394 VkResult vmaMapMemory(
395  VmaAllocator allocator,
396  const VkMappedMemoryRange* pMemory,
397  void** ppData);
398 
399 void vmaUnmapMemory(
400  VmaAllocator allocator,
401  const VkMappedMemoryRange* pMemory);
402 
405 
427 VkResult vmaCreateBuffer(
428  VmaAllocator allocator,
429  const VkBufferCreateInfo* pCreateInfo,
430  const VmaMemoryRequirements* pMemoryRequirements,
431  VkBuffer* pBuffer,
432  VkMappedMemoryRange* pMemory,
433  uint32_t* pMemoryTypeIndex);
434 
435 void vmaDestroyBuffer(
436  VmaAllocator allocator,
437  VkBuffer buffer);
438 
440 VkResult vmaCreateImage(
441  VmaAllocator allocator,
442  const VkImageCreateInfo* pCreateInfo,
443  const VmaMemoryRequirements* pMemoryRequirements,
444  VkImage* pImage,
445  VkMappedMemoryRange* pMemory,
446  uint32_t* pMemoryTypeIndex);
447 
448 void vmaDestroyImage(
449  VmaAllocator allocator,
450  VkImage image);
451 
454 #ifdef VMA_IMPLEMENTATION
455 
456 #include <cstdint>
457 #include <cstdlib>
458 
459 /*******************************************************************************
460 CONFIGURATION SECTION
461 
462 Define some of these macros before each #include of this header or change them
463 here if you need other then default behavior depending on your environment.
464 */
465 
466 // Define this macro to 1 to make the library use STL containers instead of its own implementation.
467 //#define VMA_USE_STL_CONTAINERS 1
468 
469 /* Set this macro to 1 to make the library including and using STL containers:
470 std::pair, std::vector, std::list, std::unordered_map.
471 
472 Set it to 0 or undefined to make the library using its own implementation of
473 the containers.
474 */
475 #if VMA_USE_STL_CONTAINERS
476  #define VMA_USE_STL_VECTOR 1
477  #define VMA_USE_STL_UNORDERED_MAP 1
478  #define VMA_USE_STL_LIST 1
479 #endif
480 
481 #if VMA_USE_STL_VECTOR
482  #include <vector>
483 #endif
484 
485 #if VMA_USE_STL_UNORDERED_MAP
486  #include <unordered_map>
487 #endif
488 
489 #if VMA_USE_STL_LIST
490  #include <list>
491 #endif
492 
493 /*
494 Following headers are used in this CONFIGURATION section only, so feel free to
495 remove them if not needed.
496 */
497 #include <cassert> // for assert
498 #include <algorithm> // for min, max
499 #include <mutex> // for std::mutex
500 
501 #if !defined(_WIN32)
502  #include <malloc.h> // for aligned_alloc()
503 #endif
504 
505 // Normal assert to check for programmer's errors, especially in Debug configuration.
506 #ifndef VMA_ASSERT
507  #ifdef _DEBUG
508  #define VMA_ASSERT(expr) assert(expr)
509  #else
510  #define VMA_ASSERT(expr)
511  #endif
512 #endif
513 
514 // Assert that will be called very often, like inside data structures e.g. operator[].
515 // Making it non-empty can make program slow.
516 #ifndef VMA_HEAVY_ASSERT
517  #ifdef _DEBUG
518  #define VMA_HEAVY_ASSERT(expr) //VMA_ASSERT(expr)
519  #else
520  #define VMA_HEAVY_ASSERT(expr)
521  #endif
522 #endif
523 
524 #ifndef VMA_NULL
525  // Value used as null pointer. Define it to e.g.: nullptr, NULL, 0, (void*)0.
526  #define VMA_NULL nullptr
527 #endif
528 
529 #ifndef VMA_ALIGN_OF
530  #define VMA_ALIGN_OF(type) (__alignof(type))
531 #endif
532 
533 #ifndef VMA_SYSTEM_ALIGNED_MALLOC
534  #if defined(_WIN32)
535  #define VMA_SYSTEM_ALIGNED_MALLOC(size, alignment) (_aligned_malloc((size), (alignment)))
536  #else
537  #define VMA_SYSTEM_ALIGNED_MALLOC(size, alignment) (aligned_alloc((alignment), (size) ))
538  #endif
539 #endif
540 
541 #ifndef VMA_SYSTEM_FREE
542  #if defined(_WIN32)
543  #define VMA_SYSTEM_FREE(ptr) _aligned_free(ptr)
544  #else
545  #define VMA_SYSTEM_FREE(ptr) free(ptr)
546  #endif
547 #endif
548 
549 #ifndef VMA_MIN
550  #define VMA_MIN(v1, v2) (std::min((v1), (v2)))
551 #endif
552 
553 #ifndef VMA_MAX
554  #define VMA_MAX(v1, v2) (std::max((v1), (v2)))
555 #endif
556 
557 #ifndef VMA_SWAP
558  #define VMA_SWAP(v1, v2) std::swap((v1), (v2))
559 #endif
560 
561 #ifndef VMA_DEBUG_LOG
562  #define VMA_DEBUG_LOG(format, ...)
563  /*
564  #define VMA_DEBUG_LOG(format, ...) do { \
565  printf(format, __VA_ARGS__); \
566  printf("\n"); \
567  } while(false)
568  */
569 #endif
570 
571 // Define this macro to 1 to enable functions: vmaBuildStatsString, vmaFreeStatsString.
572 #if VMA_STATS_STRING_ENABLED
573  static inline void VmaUint32ToStr(char* outStr, size_t strLen, uint32_t num)
574  {
575  _ultoa_s(num, outStr, strLen, 10);
576  }
577  static inline void VmaUint64ToStr(char* outStr, size_t strLen, uint64_t num)
578  {
579  _ui64toa_s(num, outStr, strLen, 10);
580  }
581 #endif
582 
583 #ifndef VMA_MUTEX
584  class VmaMutex
585  {
586  public:
587  VmaMutex() { }
588  ~VmaMutex() { }
589  void Lock() { m_Mutex.lock(); }
590  void Unlock() { m_Mutex.unlock(); }
591  private:
592  std::mutex m_Mutex;
593  };
594  #define VMA_MUTEX VmaMutex
595 #endif
596 
597 #ifndef VMA_BEST_FIT
598 
610  #define VMA_BEST_FIT (1)
611 #endif
612 
613 #ifndef VMA_DEBUG_ALWAYS_OWN_MEMORY
614 
618  #define VMA_DEBUG_ALWAYS_OWN_MEMORY (0)
619 #endif
620 
621 #ifndef VMA_DEBUG_ALIGNMENT
622 
626  #define VMA_DEBUG_ALIGNMENT (1)
627 #endif
628 
629 #ifndef VMA_DEBUG_MARGIN
630 
634  #define VMA_DEBUG_MARGIN (0)
635 #endif
636 
637 #ifndef VMA_DEBUG_GLOBAL_MUTEX
638 
642  #define VMA_DEBUG_GLOBAL_MUTEX (0)
643 #endif
644 
645 #ifndef VMA_DEBUG_MIN_BUFFER_IMAGE_GRANULARITY
646 
650  #define VMA_DEBUG_MIN_BUFFER_IMAGE_GRANULARITY (1)
651 #endif
652 
653 #ifndef VMA_SMALL_HEAP_MAX_SIZE
654  #define VMA_SMALL_HEAP_MAX_SIZE (512 * 1024 * 1024)
656 #endif
657 
658 #ifndef VMA_DEFAULT_LARGE_HEAP_BLOCK_SIZE
659  #define VMA_DEFAULT_LARGE_HEAP_BLOCK_SIZE (256 * 1024 * 1024)
661 #endif
662 
663 #ifndef VMA_DEFAULT_SMALL_HEAP_BLOCK_SIZE
664  #define VMA_DEFAULT_SMALL_HEAP_BLOCK_SIZE (64 * 1024 * 1024)
666 #endif
667 
668 /*******************************************************************************
669 END OF CONFIGURATION
670 */
671 
672 static VkAllocationCallbacks VmaEmptyAllocationCallbacks = {
673  VMA_NULL, VMA_NULL, VMA_NULL, VMA_NULL, VMA_NULL, VMA_NULL };
674 
675 // Returns number of bits set to 1 in (v).
676 static inline uint32_t CountBitsSet(uint32_t v)
677 {
678  uint32_t c = v - ((v >> 1) & 0x55555555);
679  c = ((c >> 2) & 0x33333333) + (c & 0x33333333);
680  c = ((c >> 4) + c) & 0x0F0F0F0F;
681  c = ((c >> 8) + c) & 0x00FF00FF;
682  c = ((c >> 16) + c) & 0x0000FFFF;
683  return c;
684 }
685 
686 // Aligns given value up to nearest multiply of align value. For example: VmaAlignUp(11, 8) = 16.
687 // Use types like uint32_t, uint64_t as T.
688 template <typename T>
689 static inline T VmaAlignUp(T val, T align)
690 {
691  return (val + align - 1) / align * align;
692 }
693 
694 // Division with mathematical rounding to nearest number.
695 template <typename T>
696 inline T VmaRoundDiv(T x, T y)
697 {
698  return (x + (y / (T)2)) / y;
699 }
700 /*
701 Returns true if two memory blocks occupy overlapping pages.
702 ResourceA must be in less memory offset than ResourceB.
703 
704 Algorithm is based on "Vulkan 1.0.39 - A Specification (with all registered Vulkan extensions)"
705 chapter 11.6 "Resource Memory Association", paragraph "Buffer-Image Granularity".
706 */
707 static inline bool VmaBlocksOnSamePage(
708  VkDeviceSize resourceAOffset,
709  VkDeviceSize resourceASize,
710  VkDeviceSize resourceBOffset,
711  VkDeviceSize pageSize)
712 {
713  VMA_ASSERT(resourceAOffset + resourceASize <= resourceBOffset && resourceASize > 0 && pageSize > 0);
714  VkDeviceSize resourceAEnd = resourceAOffset + resourceASize - 1;
715  VkDeviceSize resourceAEndPage = resourceAEnd & ~(pageSize - 1);
716  VkDeviceSize resourceBStart = resourceBOffset;
717  VkDeviceSize resourceBStartPage = resourceBStart & ~(pageSize - 1);
718  return resourceAEndPage == resourceBStartPage;
719 }
720 
721 enum VmaSuballocationType
722 {
723  VMA_SUBALLOCATION_TYPE_FREE = 0,
724  VMA_SUBALLOCATION_TYPE_UNKNOWN = 1,
725  VMA_SUBALLOCATION_TYPE_BUFFER = 2,
726  VMA_SUBALLOCATION_TYPE_IMAGE_UNKNOWN = 3,
727  VMA_SUBALLOCATION_TYPE_IMAGE_LINEAR = 4,
728  VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL = 5,
729  VMA_SUBALLOCATION_TYPE_MAX_ENUM = 0x7FFFFFFF
730 };
731 
732 /*
733 Returns true if given suballocation types could conflict and must respect
734 VkPhysicalDeviceLimits::bufferImageGranularity. They conflict if one is buffer
735 or linear image and another one is optimal image. If type is unknown, behave
736 conservatively.
737 */
738 static inline bool VmaIsBufferImageGranularityConflict(
739  VmaSuballocationType suballocType1,
740  VmaSuballocationType suballocType2)
741 {
742  if(suballocType1 > suballocType2)
743  VMA_SWAP(suballocType1, suballocType2);
744 
745  switch(suballocType1)
746  {
747  case VMA_SUBALLOCATION_TYPE_FREE:
748  return false;
749  case VMA_SUBALLOCATION_TYPE_UNKNOWN:
750  return true;
751  case VMA_SUBALLOCATION_TYPE_BUFFER:
752  return
753  suballocType2 == VMA_SUBALLOCATION_TYPE_IMAGE_UNKNOWN ||
754  suballocType2 == VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL;
755  case VMA_SUBALLOCATION_TYPE_IMAGE_UNKNOWN:
756  return
757  suballocType2 == VMA_SUBALLOCATION_TYPE_IMAGE_UNKNOWN ||
758  suballocType2 == VMA_SUBALLOCATION_TYPE_IMAGE_LINEAR ||
759  suballocType2 == VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL;
760  case VMA_SUBALLOCATION_TYPE_IMAGE_LINEAR:
761  return
762  suballocType2 == VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL;
763  case VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL:
764  return false;
765  default:
766  VMA_ASSERT(0);
767  return true;
768  }
769 }
770 
771 // Helper RAII class to lock a mutex in constructor and unlock it in destructor (at the end of scope).
772 struct VmaMutexLock
773 {
774 public:
775  VmaMutexLock(VMA_MUTEX& mutex) : m_Mutex(mutex) { mutex.Lock(); }
776  ~VmaMutexLock() { m_Mutex.Unlock(); }
777 
778 private:
779  VMA_MUTEX& m_Mutex;
780 };
781 
782 #if VMA_DEBUG_GLOBAL_MUTEX
783  static VMA_MUTEX gDebugGlobalMutex;
784  #define VMA_DEBUG_GLOBAL_MUTEX_LOCK VmaMutexLock debugGlobalMutexLock(gDebugGlobalMutex);
785 #else
786  #define VMA_DEBUG_GLOBAL_MUTEX_LOCK
787 #endif
788 
789 // Minimum size of a free suballocation to register it in the free suballocation collection.
790 static const VkDeviceSize VMA_MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER = 16;
791 
792 /*
793 Performs binary search and returns iterator to first element that is greater or
794 equal to (key), according to comparison (cmp).
795 
796 Cmp should return true if first argument is less than second argument.
797 
798 Returned value is the found element, if present in the collection or place where
799 new element with value (key) should be inserted.
800 */
801 template <typename IterT, typename KeyT, typename CmpT>
802 static IterT VmaBinaryFindFirstNotLess(IterT beg, IterT end, const KeyT &key, CmpT cmp)
803 {
804  size_t down = 0, up = (end - beg);
805  while(down < up)
806  {
807  const size_t mid = (down + up) / 2;
808  if(cmp(*(beg+mid), key))
809  down = mid + 1;
810  else
811  up = mid;
812  }
813  return beg + down;
814 }
815 
817 // Memory allocation
818 
819 static void* VmaMalloc(const VkAllocationCallbacks* pAllocationCallbacks, size_t size, size_t alignment)
820 {
821  if((pAllocationCallbacks != VMA_NULL) &&
822  (pAllocationCallbacks->pfnAllocation != VMA_NULL))
823  {
824  return (*pAllocationCallbacks->pfnAllocation)(
825  pAllocationCallbacks->pUserData,
826  size,
827  alignment,
828  VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
829  }
830  else
831  {
832  return VMA_SYSTEM_ALIGNED_MALLOC(size, alignment);
833  }
834 }
835 
836 static void VmaFree(const VkAllocationCallbacks* pAllocationCallbacks, void* ptr)
837 {
838  if((pAllocationCallbacks != VMA_NULL) &&
839  (pAllocationCallbacks->pfnFree != VMA_NULL))
840  {
841  (*pAllocationCallbacks->pfnFree)(pAllocationCallbacks->pUserData, ptr);
842  }
843  else
844  {
845  VMA_SYSTEM_FREE(ptr);
846  }
847 }
848 
849 template<typename T>
850 static T* VmaAllocate(const VkAllocationCallbacks* pAllocationCallbacks)
851 {
852  return (T*)VmaMalloc(pAllocationCallbacks, sizeof(T), VMA_ALIGN_OF(T));
853 }
854 
855 template<typename T>
856 static T* VmaAllocateArray(const VkAllocationCallbacks* pAllocationCallbacks, size_t count)
857 {
858  return (T*)VmaMalloc(pAllocationCallbacks, sizeof(T) * count, VMA_ALIGN_OF(T));
859 }
860 
861 #define vma_new(allocator, type) new(VmaAllocate<type>(allocator))(type)
862 
863 #define vma_new_array(allocator, type, count) new(VmaAllocateArray<type>((allocator), (count)))(type)
864 
865 template<typename T>
866 static void vma_delete(const VkAllocationCallbacks* pAllocationCallbacks, T* ptr)
867 {
868  ptr->~T();
869  VmaFree(pAllocationCallbacks, ptr);
870 }
871 
872 template<typename T>
873 static void vma_delete_array(const VkAllocationCallbacks* pAllocationCallbacks, T* ptr, size_t count)
874 {
875  if(ptr != VMA_NULL)
876  {
877  for(size_t i = count; i--; )
878  ptr[i].~T();
879  VmaFree(pAllocationCallbacks, ptr);
880  }
881 }
882 
883 // STL-compatible allocator.
884 template<typename T>
885 class VmaStlAllocator
886 {
887 public:
888  const VkAllocationCallbacks* const m_pCallbacks;
889  typedef T value_type;
890 
891  VmaStlAllocator(const VkAllocationCallbacks* pCallbacks) : m_pCallbacks(pCallbacks) { }
892  template<typename U> VmaStlAllocator(const VmaStlAllocator<U>& src) : m_pCallbacks(src.m_pCallbacks) { }
893 
894  T* allocate(size_t n) { return VmaAllocateArray<T>(m_pCallbacks, n); }
895  void deallocate(T* p, size_t n) { VmaFree(m_pCallbacks, p); }
896 
897  template<typename U>
898  bool operator==(const VmaStlAllocator<U>& rhs) const
899  {
900  return m_pCallbacks == rhs.m_pCallbacks;
901  }
902  template<typename U>
903  bool operator!=(const VmaStlAllocator<U>& rhs) const
904  {
905  return m_pCallbacks != rhs.m_pCallbacks;
906  }
907 
908  VmaStlAllocator& operator=(const VmaStlAllocator& x) = delete;
909 };
910 
911 #if VMA_USE_STL_VECTOR
912 
913 #define VmaVector std::vector
914 
915 template<typename T, typename allocatorT>
916 static void VectorInsert(std::vector<T, allocatorT>& vec, size_t index, const T& item)
917 {
918  vec.insert(vec.begin() + index, item);
919 }
920 
921 template<typename T, typename allocatorT>
922 static void VectorRemove(std::vector<T, allocatorT>& vec, size_t index)
923 {
924  vec.erase(vec.begin() + index);
925 }
926 
927 #else // #if VMA_USE_STL_VECTOR
928 
929 /* Class with interface compatible with subset of std::vector.
930 T must be POD because constructors and destructors are not called and memcpy is
931 used for these objects. */
932 template<typename T, typename AllocatorT>
933 class VmaVector
934 {
935 public:
936  VmaVector(const AllocatorT& allocator) :
937  m_Allocator(allocator),
938  m_pArray(VMA_NULL),
939  m_Count(0),
940  m_Capacity(0)
941  {
942  }
943 
944  VmaVector(AllocatorT& allocator) :
945  m_Allocator(allocator),
946  m_pArray(VMA_NULL),
947  m_Count(0),
948  m_Capacity(0)
949  {
950  }
951 
952  VmaVector(size_t count, AllocatorT& allocator) :
953  m_Allocator(allocator),
954  m_pArray(count ? (T*)VmaAllocateArray<T>(allocator->m_pCallbacks, count) : VMA_NULL),
955  m_Count(count),
956  m_Capacity(count)
957  {
958  }
959 
960  VmaVector(const VmaVector<T, AllocatorT>& src) :
961  m_Allocator(src.m_Allocator),
962  m_pArray(src.m_Count ? (T*)VmaAllocateArray<T>(src->m_pCallbacks, src.m_Count) : VMA_NULL),
963  m_Count(src.m_Count),
964  m_Capacity(src.m_Count)
965  {
966  if(m_Count != 0)
967  memcpy(m_pArray, src.m_pArray, m_Count * sizeof(T));
968  }
969 
970  ~VmaVector()
971  {
972  VmaFree(m_Allocator.m_pCallbacks, m_pArray);
973  }
974 
975  VmaVector& operator=(const VmaVector<T, AllocatorT>& rhs)
976  {
977  if(&rhs != this)
978  {
979  Resize(rhs.m_Count);
980  if(m_Count != 0)
981  memcpy(m_pArray, rhs.m_pArray, m_Count * sizeof(T));
982  }
983  return *this;
984  }
985 
986  bool empty() const { return m_Count == 0; }
987  size_t size() const { return m_Count; }
988  T* data() { return m_pArray; }
989  const T* data() const { return m_pArray; }
990 
991  T& operator[](size_t index)
992  {
993  VMA_HEAVY_ASSERT(index < m_Count);
994  return m_pArray[index];
995  }
996  const T& operator[](size_t index) const
997  {
998  VMA_HEAVY_ASSERT(index < m_Count);
999  return m_pArray[index];
1000  }
1001 
1002  T& front()
1003  {
1004  VMA_HEAVY_ASSERT(m_Count > 0);
1005  return m_pArray[0];
1006  }
1007  const T& front() const
1008  {
1009  VMA_HEAVY_ASSERT(m_Count > 0);
1010  return m_pArray[0];
1011  }
1012  T& back()
1013  {
1014  VMA_HEAVY_ASSERT(m_Count > 0);
1015  return m_pArray[m_Count - 1];
1016  }
1017  const T& back() const
1018  {
1019  VMA_HEAVY_ASSERT(m_Count > 0);
1020  return m_pArray[m_Count - 1];
1021  }
1022 
1023  void reserve(size_t newCapacity, bool freeMemory = false)
1024  {
1025  newCapacity = VMA_MAX(newCapacity, m_Count);
1026 
1027  if((newCapacity < m_Capacity) && !freeMemory)
1028  newCapacity = m_Capacity;
1029 
1030  if(newCapacity != m_Capacity)
1031  {
1032  T* const newArray = newCapacity ? VmaAllocateArray<T>(m_Allocator, newCapacity) : VMA_NULL;
1033  if(m_Count != 0)
1034  memcpy(newArray, m_pArray, m_Count * sizeof(T));
1035  VmaFree(m_Allocator.m_pCallbacks, m_pArray);
1036  m_Capacity = newCapacity;
1037  m_pArray = newArray;
1038  }
1039  }
1040 
1041  void resize(size_t newCount, bool freeMemory = false)
1042  {
1043  size_t newCapacity = m_Capacity;
1044  if(newCount > m_Capacity)
1045  newCapacity = VMA_MAX(newCount, VMA_MAX(m_Capacity * 3 / 2, (size_t)8));
1046  else if(freeMemory)
1047  newCapacity = newCount;
1048 
1049  if(newCapacity != m_Capacity)
1050  {
1051  T* const newArray = newCapacity ? VmaAllocateArray<T>(m_Allocator.m_pCallbacks, newCapacity) : VMA_NULL;
1052  const size_t elementsToCopy = VMA_MIN(m_Count, newCount);
1053  if(elementsToCopy != 0)
1054  memcpy(newArray, m_pArray, elementsToCopy * sizeof(T));
1055  VmaFree(m_Allocator.m_pCallbacks, m_pArray);
1056  m_Capacity = newCapacity;
1057  m_pArray = newArray;
1058  }
1059 
1060  m_Count = newCount;
1061  }
1062 
1063  void clear(bool freeMemory = false)
1064  {
1065  resize(0, freeMemory);
1066  }
1067 
1068  void insert(size_t index, const T& src)
1069  {
1070  VMA_HEAVY_ASSERT(index <= m_Count);
1071  const size_t oldCount = size();
1072  resize(oldCount + 1);
1073  if(index < oldCount)
1074  memmove(m_pArray + (index + 1), m_pArray + index, (oldCount - index) * sizeof(T));
1075  m_pArray[index] = src;
1076  }
1077 
1078  void remove(size_t index)
1079  {
1080  VMA_HEAVY_ASSERT(index < m_Count);
1081  const size_t oldCount = size();
1082  if(index < oldCount - 1)
1083  memmove(m_pArray + index, m_pArray + (index + 1), (oldCount - index - 1) * sizeof(T));
1084  resize(oldCount - 1);
1085  }
1086 
1087  void push_back(const T& src)
1088  {
1089  const size_t newIndex = size();
1090  resize(newIndex + 1);
1091  m_pArray[newIndex] = src;
1092  }
1093 
1094  void pop_back()
1095  {
1096  VMA_HEAVY_ASSERT(m_Count > 0);
1097  resize(size() - 1);
1098  }
1099 
1100  void push_front(const T& src)
1101  {
1102  insert(0, src);
1103  }
1104 
1105  void pop_front()
1106  {
1107  VMA_HEAVY_ASSERT(m_Count > 0);
1108  remove(0);
1109  }
1110 
1111  typedef T* iterator;
1112 
1113  iterator begin() { return m_pArray; }
1114  iterator end() { return m_pArray + m_Count; }
1115 
1116 private:
1117  AllocatorT m_Allocator;
1118  T* m_pArray;
1119  size_t m_Count;
1120  size_t m_Capacity;
1121 };
1122 
1123 template<typename T, typename allocatorT>
1124 static void VectorInsert(VmaVector<T, allocatorT>& vec, size_t index, const T& item)
1125 {
1126  vec.insert(index, item);
1127 }
1128 
1129 template<typename T, typename allocatorT>
1130 static void VectorRemove(VmaVector<T, allocatorT>& vec, size_t index)
1131 {
1132  vec.remove(index);
1133 }
1134 
1135 #endif // #if VMA_USE_STL_VECTOR
1136 
1138 // class VmaPoolAllocator
1139 
1140 /*
1141 Allocator for objects of type T using a list of arrays (pools) to speed up
1142 allocation. Number of elements that can be allocated is not bounded because
1143 allocator can create multiple blocks.
1144 */
1145 template<typename T>
1146 class VmaPoolAllocator
1147 {
1148 public:
1149  VmaPoolAllocator(const VkAllocationCallbacks* pAllocationCallbacks, size_t itemsPerBlock);
1150  ~VmaPoolAllocator();
1151  void Clear();
1152  T* Alloc();
1153  void Free(T* ptr);
1154 
1155 private:
1156  union Item
1157  {
1158  uint32_t NextFreeIndex;
1159  T Value;
1160  };
1161 
1162  struct ItemBlock
1163  {
1164  Item* pItems;
1165  uint32_t FirstFreeIndex;
1166  };
1167 
1168  const VkAllocationCallbacks* m_pAllocationCallbacks;
1169  size_t m_ItemsPerBlock;
1170  VmaVector< ItemBlock, VmaStlAllocator<ItemBlock> > m_ItemBlocks;
1171 
1172  ItemBlock& CreateNewBlock();
1173 };
1174 
1175 template<typename T>
1176 VmaPoolAllocator<T>::VmaPoolAllocator(const VkAllocationCallbacks* pAllocationCallbacks, size_t itemsPerBlock) :
1177  m_pAllocationCallbacks(pAllocationCallbacks),
1178  m_ItemsPerBlock(itemsPerBlock),
1179  m_ItemBlocks(VmaStlAllocator<ItemBlock>(pAllocationCallbacks))
1180 {
1181  VMA_ASSERT(itemsPerBlock > 0);
1182 }
1183 
1184 template<typename T>
1185 VmaPoolAllocator<T>::~VmaPoolAllocator()
1186 {
1187  Clear();
1188 }
1189 
1190 template<typename T>
1191 void VmaPoolAllocator<T>::Clear()
1192 {
1193  for(size_t i = m_ItemBlocks.size(); i--; )
1194  vma_delete_array(m_pAllocationCallbacks, m_ItemBlocks[i].pItems, m_ItemsPerBlock);
1195  m_ItemBlocks.clear();
1196 }
1197 
1198 template<typename T>
1199 T* VmaPoolAllocator<T>::Alloc()
1200 {
1201  for(size_t i = m_ItemBlocks.size(); i--; )
1202  {
1203  ItemBlock& block = m_ItemBlocks[i];
1204  // This block has some free items: Use first one.
1205  if(block.FirstFreeIndex != UINT32_MAX)
1206  {
1207  Item* const pItem = &block.pItems[block.FirstFreeIndex];
1208  block.FirstFreeIndex = pItem->NextFreeIndex;
1209  return &pItem->Value;
1210  }
1211  }
1212 
1213  // No block has free item: Create new one and use it.
1214  ItemBlock& newBlock = CreateNewBlock();
1215  Item* const pItem = &newBlock.pItems[0];
1216  newBlock.FirstFreeIndex = pItem->NextFreeIndex;
1217  return &pItem->Value;
1218 }
1219 
1220 template<typename T>
1221 void VmaPoolAllocator<T>::Free(T* ptr)
1222 {
1223  // Search all memory blocks to find ptr.
1224  for(size_t i = 0; i < m_ItemBlocks.size(); ++i)
1225  {
1226  ItemBlock& block = m_ItemBlocks[i];
1227 
1228  // Casting to union.
1229  Item* pItemPtr;
1230  memcpy(&pItemPtr, &ptr, sizeof(pItemPtr));
1231 
1232  // Check if pItemPtr is in address range of this block.
1233  if((pItemPtr >= block.pItems) && (pItemPtr < block.pItems + m_ItemsPerBlock))
1234  {
1235  const uint32_t index = static_cast<uint32_t>(pItemPtr - block.pItems);
1236  pItemPtr->NextFreeIndex = block.FirstFreeIndex;
1237  block.FirstFreeIndex = index;
1238  return;
1239  }
1240  }
1241  VMA_ASSERT(0 && "Pointer doesn't belong to this memory pool.");
1242 }
1243 
1244 template<typename T>
1245 typename VmaPoolAllocator<T>::ItemBlock& VmaPoolAllocator<T>::CreateNewBlock()
1246 {
1247  ItemBlock newBlock = {
1248  vma_new_array(m_pAllocationCallbacks, Item, m_ItemsPerBlock), 0 };
1249 
1250  m_ItemBlocks.push_back(newBlock);
1251 
1252  // Setup singly-linked list of all free items in this block.
1253  for(uint32_t i = 0; i < m_ItemsPerBlock - 1; ++i)
1254  newBlock.pItems[i].NextFreeIndex = i + 1;
1255  newBlock.pItems[m_ItemsPerBlock - 1].NextFreeIndex = UINT32_MAX;
1256  return m_ItemBlocks.back();
1257 }
1258 
1260 // class VmaRawList, VmaList
1261 
1262 #if VMA_USE_STL_LIST
1263 
1264 #define VmaList std::list
1265 
1266 #else // #if VMA_USE_STL_LIST
1267 
1268 template<typename T>
1269 struct VmaListItem
1270 {
1271  VmaListItem* pPrev;
1272  VmaListItem* pNext;
1273  T Value;
1274 };
1275 
1276 // Doubly linked list.
1277 template<typename T>
1278 class VmaRawList
1279 {
1280 public:
1281  typedef VmaListItem<T> ItemType;
1282 
1283  VmaRawList(const VkAllocationCallbacks* pAllocationCallbacks);
1284  ~VmaRawList();
1285  void Clear();
1286 
1287  size_t GetCount() const { return m_Count; }
1288  bool IsEmpty() const { return m_Count == 0; }
1289 
1290  ItemType* Front() { return m_pFront; }
1291  const ItemType* Front() const { return m_pFront; }
1292  ItemType* Back() { return m_pBack; }
1293  const ItemType* Back() const { return m_pBack; }
1294 
1295  ItemType* PushBack();
1296  ItemType* PushFront();
1297  ItemType* PushBack(const T& value);
1298  ItemType* PushFront(const T& value);
1299  void PopBack();
1300  void PopFront();
1301 
1302  // Item can be null - it means PushBack.
1303  ItemType* InsertBefore(ItemType* pItem);
1304  // Item can be null - it means PushFront.
1305  ItemType* InsertAfter(ItemType* pItem);
1306 
1307  ItemType* InsertBefore(ItemType* pItem, const T& value);
1308  ItemType* InsertAfter(ItemType* pItem, const T& value);
1309 
1310  void Remove(ItemType* pItem);
1311 
1312 private:
1313  const VkAllocationCallbacks* const m_pAllocationCallbacks;
1314  VmaPoolAllocator<ItemType> m_ItemAllocator;
1315  ItemType* m_pFront;
1316  ItemType* m_pBack;
1317  size_t m_Count;
1318 
1319  // Declared not defined, to block copy constructor and assignment operator.
1320  VmaRawList(const VmaRawList<T>& src);
1321  VmaRawList<T>& operator=(const VmaRawList<T>& rhs);
1322 };
1323 
1324 template<typename T>
1325 VmaRawList<T>::VmaRawList(const VkAllocationCallbacks* pAllocationCallbacks) :
1326  m_pAllocationCallbacks(pAllocationCallbacks),
1327  m_ItemAllocator(pAllocationCallbacks, 128),
1328  m_pFront(VMA_NULL),
1329  m_pBack(VMA_NULL),
1330  m_Count(0)
1331 {
1332 }
1333 
1334 template<typename T>
1335 VmaRawList<T>::~VmaRawList()
1336 {
1337  // Intentionally not calling Clear, because that would be unnecessary
1338  // computations to return all items to m_ItemAllocator as free.
1339 }
1340 
1341 template<typename T>
1342 void VmaRawList<T>::Clear()
1343 {
1344  if(IsEmpty() == false)
1345  {
1346  ItemType* pItem = m_pBack;
1347  while(pItem != VMA_NULL)
1348  {
1349  ItemType* const pPrevItem = pItem->pPrev;
1350  m_ItemAllocator.Free(pItem);
1351  pItem = pPrevItem;
1352  }
1353  m_pFront = VMA_NULL;
1354  m_pBack = VMA_NULL;
1355  m_Count = 0;
1356  }
1357 }
1358 
1359 template<typename T>
1360 VmaListItem<T>* VmaRawList<T>::PushBack()
1361 {
1362  ItemType* const pNewItem = m_ItemAllocator.Alloc();
1363  pNewItem->pNext = VMA_NULL;
1364  if(IsEmpty())
1365  {
1366  pNewItem->pPrev = VMA_NULL;
1367  m_pFront = pNewItem;
1368  m_pBack = pNewItem;
1369  m_Count = 1;
1370  }
1371  else
1372  {
1373  pNewItem->pPrev = m_pBack;
1374  m_pBack->pNext = pNewItem;
1375  m_pBack = pNewItem;
1376  ++m_Count;
1377  }
1378  return pNewItem;
1379 }
1380 
1381 template<typename T>
1382 VmaListItem<T>* VmaRawList<T>::PushFront()
1383 {
1384  ItemType* const pNewItem = m_ItemAllocator.Alloc();
1385  pNewItem->pPrev = VMA_NULL;
1386  if(IsEmpty())
1387  {
1388  pNewItem->pNext = VMA_NULL;
1389  m_pFront = pNewItem;
1390  m_pBack = pNewItem;
1391  m_Count = 1;
1392  }
1393  else
1394  {
1395  pNewItem->pNext = m_pFront;
1396  m_pFront->pPrev = pNewItem;
1397  m_pFront = pNewItem;
1398  ++m_Count;
1399  }
1400  return pNewItem;
1401 }
1402 
1403 template<typename T>
1404 VmaListItem<T>* VmaRawList<T>::PushBack(const T& value)
1405 {
1406  ItemType* const pNewItem = PushBack();
1407  pNewItem->Value = value;
1408  return pNewItem;
1409 }
1410 
1411 template<typename T>
1412 VmaListItem<T>* VmaRawList<T>::PushFront(const T& value)
1413 {
1414  ItemType* const pNewItem = PushFront();
1415  pNewItem->Value = value;
1416  return pNewItem;
1417 }
1418 
1419 template<typename T>
1420 void VmaRawList<T>::PopBack()
1421 {
1422  VMA_HEAVY_ASSERT(m_Count > 0);
1423  ItemType* const pBackItem = m_pBack;
1424  ItemType* const pPrevItem = pBackItem->pPrev;
1425  if(pPrevItem != VMA_NULL)
1426  pPrevItem->pNext = VMA_NULL;
1427  m_pBack = pPrevItem;
1428  m_ItemAllocator.Free(pBackItem);
1429  --m_Count;
1430 }
1431 
1432 template<typename T>
1433 void VmaRawList<T>::PopFront()
1434 {
1435  VMA_HEAVY_ASSERT(m_Count > 0);
1436  ItemType* const pFrontItem = m_pFront;
1437  ItemType* const pNextItem = pFrontItem->pNext;
1438  if(pNextItem != VMA_NULL)
1439  pNextItem->pPrev = VMA_NULL;
1440  m_pFront = pNextItem;
1441  m_ItemAllocator.Free(pFrontItem);
1442  --m_Count;
1443 }
1444 
1445 template<typename T>
1446 void VmaRawList<T>::Remove(ItemType* pItem)
1447 {
1448  VMA_HEAVY_ASSERT(pItem != VMA_NULL);
1449  VMA_HEAVY_ASSERT(m_Count > 0);
1450 
1451  if(pItem->pPrev != VMA_NULL)
1452  pItem->pPrev->pNext = pItem->pNext;
1453  else
1454  {
1455  VMA_HEAVY_ASSERT(m_pFront == pItem);
1456  m_pFront = pItem->pNext;
1457  }
1458 
1459  if(pItem->pNext != VMA_NULL)
1460  pItem->pNext->pPrev = pItem->pPrev;
1461  else
1462  {
1463  VMA_HEAVY_ASSERT(m_pBack == pItem);
1464  m_pBack = pItem->pPrev;
1465  }
1466 
1467  m_ItemAllocator.Free(pItem);
1468  --m_Count;
1469 }
1470 
1471 template<typename T>
1472 VmaListItem<T>* VmaRawList<T>::InsertBefore(ItemType* pItem)
1473 {
1474  if(pItem != VMA_NULL)
1475  {
1476  ItemType* const prevItem = pItem->pPrev;
1477  ItemType* const newItem = m_ItemAllocator.Alloc();
1478  newItem->pPrev = prevItem;
1479  newItem->pNext = pItem;
1480  pItem->pPrev = newItem;
1481  if(prevItem != VMA_NULL)
1482  prevItem->pNext = newItem;
1483  else
1484  {
1485  VMA_HEAVY_ASSERT(m_pFront = pItem);
1486  m_pFront = newItem;
1487  }
1488  ++m_Count;
1489  return newItem;
1490  }
1491  else
1492  return PushBack();
1493 }
1494 
1495 template<typename T>
1496 VmaListItem<T>* VmaRawList<T>::InsertAfter(ItemType* pItem)
1497 {
1498  if(pItem != VMA_NULL)
1499  {
1500  ItemType* const nextItem = pItem->pNext;
1501  ItemType* const newItem = m_ItemAllocator.Alloc();
1502  newItem->pNext = nextItem;
1503  newItem->pPrev = pItem;
1504  pItem->pNext = newItem;
1505  if(nextItem != VMA_NULL)
1506  nextItem->pPrev = newItem;
1507  else
1508  {
1509  VMA_HEAVY_ASSERT(m_pBack = pItem);
1510  m_pBack = newItem;
1511  }
1512  ++m_Count;
1513  return newItem;
1514  }
1515  else
1516  return PushFront();
1517 }
1518 
1519 template<typename T>
1520 VmaListItem<T>* VmaRawList<T>::InsertBefore(ItemType* pItem, const T& value)
1521 {
1522  ItemType* const newItem = InsertBefore(pItem);
1523  newItem->Value = value;
1524  return newItem;
1525 }
1526 
1527 template<typename T>
1528 VmaListItem<T>* VmaRawList<T>::InsertAfter(ItemType* pItem, const T& value)
1529 {
1530  ItemType* const newItem = InsertAfter(pItem);
1531  newItem->Value = value;
1532  return newItem;
1533 }
1534 
1535 template<typename T, typename AllocatorT>
1536 class VmaList
1537 {
1538 public:
1539  class iterator
1540  {
1541  public:
1542  iterator() :
1543  m_pList(VMA_NULL),
1544  m_pItem(VMA_NULL)
1545  {
1546  }
1547 
1548  T& operator*() const
1549  {
1550  VMA_HEAVY_ASSERT(m_pItem != VMA_NULL);
1551  return m_pItem->Value;
1552  }
1553  T* operator->() const
1554  {
1555  VMA_HEAVY_ASSERT(m_pItem != VMA_NULL);
1556  return &m_pItem->Value;
1557  }
1558 
1559  iterator& operator++()
1560  {
1561  VMA_HEAVY_ASSERT(m_pItem != VMA_NULL);
1562  m_pItem = m_pItem->pNext;
1563  return *this;
1564  }
1565  iterator& operator--()
1566  {
1567  if(m_pItem != VMA_NULL)
1568  m_pItem = m_pItem->pPrev;
1569  else
1570  {
1571  VMA_HEAVY_ASSERT(!m_pList.IsEmpty());
1572  m_pItem = m_pList->Back();
1573  }
1574  return *this;
1575  }
1576 
1577  iterator operator++(int)
1578  {
1579  iterator result = *this;
1580  ++*this;
1581  return result;
1582  }
1583  iterator operator--(int)
1584  {
1585  iterator result = *this;
1586  --*this;
1587  return result;
1588  }
1589 
1590  bool operator==(const iterator& rhs) const
1591  {
1592  VMA_HEAVY_ASSERT(m_pList == rhs.m_pList);
1593  return m_pItem == rhs.m_pItem;
1594  }
1595  bool operator!=(const iterator& rhs) const
1596  {
1597  VMA_HEAVY_ASSERT(m_pList == rhs.m_pList);
1598  return m_pItem != rhs.m_pItem;
1599  }
1600 
1601  private:
1602  VmaRawList<T>* m_pList;
1603  VmaListItem<T>* m_pItem;
1604 
1605  iterator(VmaRawList<T>* pList, VmaListItem<T>* pItem) :
1606  m_pList(pList),
1607  m_pItem(pItem)
1608  {
1609  }
1610 
1611  friend class VmaList<T, AllocatorT>;
1612  friend class VmaList<T, AllocatorT>:: const_iterator;
1613  };
1614 
1615  class const_iterator
1616  {
1617  public:
1618  const_iterator() :
1619  m_pList(VMA_NULL),
1620  m_pItem(VMA_NULL)
1621  {
1622  }
1623 
1624  const_iterator(const iterator& src) :
1625  m_pList(src.m_pList),
1626  m_pItem(src.m_pItem)
1627  {
1628  }
1629 
1630  const T& operator*() const
1631  {
1632  VMA_HEAVY_ASSERT(m_pItem != VMA_NULL);
1633  return m_pItem->Value;
1634  }
1635  const T* operator->() const
1636  {
1637  VMA_HEAVY_ASSERT(m_pItem != VMA_NULL);
1638  return &m_pItem->Value;
1639  }
1640 
1641  const_iterator& operator++()
1642  {
1643  VMA_HEAVY_ASSERT(m_pItem != VMA_NULL);
1644  m_pItem = m_pItem->pNext;
1645  return *this;
1646  }
1647  const_iterator& operator--()
1648  {
1649  if(m_pItem != VMA_NULL)
1650  m_pItem = m_pItem->pPrev;
1651  else
1652  {
1653  VMA_HEAVY_ASSERT(!m_pList->IsEmpty());
1654  m_pItem = m_pList->Back();
1655  }
1656  return *this;
1657  }
1658 
1659  const_iterator operator++(int)
1660  {
1661  const_iterator result = *this;
1662  ++*this;
1663  return result;
1664  }
1665  const_iterator operator--(int)
1666  {
1667  const_iterator result = *this;
1668  --*this;
1669  return result;
1670  }
1671 
1672  bool operator==(const const_iterator& rhs) const
1673  {
1674  VMA_HEAVY_ASSERT(m_pList == rhs.m_pList);
1675  return m_pItem == rhs.m_pItem;
1676  }
1677  bool operator!=(const const_iterator& rhs) const
1678  {
1679  VMA_HEAVY_ASSERT(m_pList == rhs.m_pList);
1680  return m_pItem != rhs.m_pItem;
1681  }
1682 
1683  private:
1684  const_iterator(const VmaRawList<T>* pList, const VmaListItem<T>* pItem) :
1685  m_pList(pList),
1686  m_pItem(pItem)
1687  {
1688  }
1689 
1690  const VmaRawList<T>* m_pList;
1691  const VmaListItem<T>* m_pItem;
1692 
1693  friend class VmaList<T, AllocatorT>;
1694  };
1695 
1696  VmaList(AllocatorT& allocator) : m_RawList(allocator.m_pCallbacks) { }
1697  VmaList(const AllocatorT& allocator) : m_RawList(allocator.m_pCallbacks) { }
1698 
1699  bool empty() const { return m_RawList.IsEmpty(); }
1700  size_t size() const { return m_RawList.GetCount(); }
1701 
1702  iterator begin() { return iterator(&m_RawList, m_RawList.Front()); }
1703  iterator end() { return iterator(&m_RawList, VMA_NULL); }
1704 
1705  const_iterator cbegin() const { return const_iterator(&m_RawList, m_RawList.Front()); }
1706  const_iterator cend() const { return const_iterator(&m_RawList, VMA_NULL); }
1707 
1708  void clear() { m_RawList.Clear(); }
1709  void push_back(const T& value) { m_RawList.PushBack(value); }
1710  void erase(iterator it) { m_RawList.Remove(it.m_pItem); }
1711  iterator insert(iterator it, const T& value) { return iterator(&m_RawList, m_RawList.InsertBefore(it.m_pItem, value)); }
1712 
1713 private:
1714  VmaRawList<T> m_RawList;
1715 };
1716 
1717 #endif // #if VMA_USE_STL_LIST
1718 
1720 // class VmaMap
1721 
1722 #if VMA_USE_STL_UNORDERED_MAP
1723 
1724 #define VmaPair std::pair
1725 
1726 #define VMA_MAP_TYPE(KeyT, ValueT) \
1727  std::unordered_map< KeyT, ValueT, std::hash<KeyT>, std::equal_to<KeyT>, VmaStlAllocator< std::pair<KeyT, ValueT> > >
1728 
1729 #else // #if VMA_USE_STL_UNORDERED_MAP
1730 
1731 template<typename T1, typename T2>
1732 struct VmaPair
1733 {
1734  T1 first;
1735  T2 second;
1736 
1737  VmaPair() : first(), second() { }
1738  VmaPair(const T1& firstSrc, const T2& secondSrc) : first(firstSrc), second(secondSrc) { }
1739 };
1740 
1741 /* Class compatible with subset of interface of std::unordered_map.
1742 KeyT, ValueT must be POD because they will be stored in VmaVector.
1743 */
1744 template<typename KeyT, typename ValueT>
1745 class VmaMap
1746 {
1747 public:
1748  typedef VmaPair<KeyT, ValueT> PairType;
1749  typedef PairType* iterator;
1750 
1751  VmaMap(VmaStlAllocator<PairType>& allocator) : m_Vector(allocator) { }
1752  VmaMap(const VmaStlAllocator<PairType>& allocator) : m_Vector(allocator) { }
1753 
1754  iterator begin() { return m_Vector.begin(); }
1755  iterator end() { return m_Vector.end(); }
1756 
1757  void insert(const PairType& pair);
1758  iterator find(const KeyT& key);
1759  void erase(iterator it);
1760 
1761 private:
1762  VmaVector< PairType, VmaStlAllocator<PairType> > m_Vector;
1763 };
1764 
1765 #define VMA_MAP_TYPE(KeyT, ValueT) VmaMap<KeyT, ValueT>
1766 
1767 template<typename FirstT, typename SecondT>
1768 struct VmaPairFirstLess
1769 {
1770  bool operator()(const VmaPair<FirstT, SecondT>& lhs, const VmaPair<FirstT, SecondT>& rhs) const
1771  {
1772  return lhs.first < rhs.first;
1773  }
1774  bool operator()(const VmaPair<FirstT, SecondT>& lhs, const FirstT& rhsFirst) const
1775  {
1776  return lhs.first < rhsFirst;
1777  }
1778 };
1779 
1780 template<typename KeyT, typename ValueT>
1781 void VmaMap<KeyT, ValueT>::insert(const PairType& pair)
1782 {
1783  const size_t indexToInsert = VmaBinaryFindFirstNotLess(
1784  m_Vector.data(),
1785  m_Vector.data() + m_Vector.size(),
1786  pair,
1787  VmaPairFirstLess<KeyT, ValueT>()) - m_Vector.data();
1788  VectorInsert(m_Vector, indexToInsert, pair);
1789 }
1790 
1791 template<typename KeyT, typename ValueT>
1792 VmaPair<KeyT, ValueT>* VmaMap<KeyT, ValueT>::find(const KeyT& key)
1793 {
1794  PairType* it = VmaBinaryFindFirstNotLess(
1795  m_Vector.data(),
1796  m_Vector.data() + m_Vector.size(),
1797  key,
1798  VmaPairFirstLess<KeyT, ValueT>());
1799  if((it != m_Vector.end()) && (it->first == key))
1800  return it;
1801  else
1802  return m_Vector.end();
1803 }
1804 
1805 template<typename KeyT, typename ValueT>
1806 void VmaMap<KeyT, ValueT>::erase(iterator it)
1807 {
1808  VectorRemove(m_Vector, it - m_Vector.begin());
1809 }
1810 
1811 #endif // #if VMA_USE_STL_UNORDERED_MAP
1812 
1813 /*
1814 Represents a region of VmaAllocation that is either assigned and returned as
1815 allocated memory block or free.
1816 */
1817 struct VmaSuballocation
1818 {
1819  VkDeviceSize offset;
1820  VkDeviceSize size;
1821  VmaSuballocationType type;
1822 };
1823 
1824 typedef VmaList< VmaSuballocation, VmaStlAllocator<VmaSuballocation> > VmaSuballocationList;
1825 
1826 // Parameters of an allocation.
1827 struct VmaAllocationRequest
1828 {
1829  VmaSuballocationList::iterator freeSuballocationItem;
1830  VkDeviceSize offset;
1831 };
1832 
1833 /* Single block of memory - VkDeviceMemory with all the data about its regions
1834 assigned or free. */
1835 class VmaAllocation
1836 {
1837 public:
1838  VkDeviceMemory m_hMemory;
1839  VkDeviceSize m_Size;
1840  uint32_t m_FreeCount;
1841  VkDeviceSize m_SumFreeSize;
1842  VmaSuballocationList m_Suballocations;
1843  // Suballocations that are free and have size greater than certain threshold.
1844  // Sorted by size, ascending.
1845  VmaVector< VmaSuballocationList::iterator, VmaStlAllocator< VmaSuballocationList::iterator > > m_FreeSuballocationsBySize;
1846 
1847  VmaAllocation(VmaAllocator hAllocator);
1848 
1849  ~VmaAllocation()
1850  {
1851  VMA_ASSERT(m_hMemory == VK_NULL_HANDLE);
1852  }
1853 
1854  // Always call after construction.
1855  void Init(VkDeviceMemory newMemory, VkDeviceSize newSize);
1856  // Always call before destruction.
1857  void Destroy(VmaAllocator allocator);
1858 
1859  // Validates all data structures inside this object. If not valid, returns false.
1860  bool Validate() const;
1861 
1862  // Tries to find a place for suballocation with given parameters inside this allocation.
1863  // If succeeded, fills pAllocationRequest and returns true.
1864  // If failed, returns false.
1865  bool CreateAllocationRequest(
1866  VkDeviceSize bufferImageGranularity,
1867  VkDeviceSize allocSize,
1868  VkDeviceSize allocAlignment,
1869  VmaSuballocationType allocType,
1870  VmaAllocationRequest* pAllocationRequest);
1871 
1872  // Checks if requested suballocation with given parameters can be placed in given pFreeSuballocItem.
1873  // If yes, fills pOffset and returns true. If no, returns false.
1874  bool CheckAllocation(
1875  VkDeviceSize bufferImageGranularity,
1876  VkDeviceSize allocSize,
1877  VkDeviceSize allocAlignment,
1878  VmaSuballocationType allocType,
1879  VmaSuballocationList::const_iterator freeSuballocItem,
1880  VkDeviceSize* pOffset) const;
1881 
1882  // Returns true if this allocation is empty - contains only single free suballocation.
1883  bool IsEmpty() const;
1884 
1885  // Makes actual allocation based on request. Request must already be checked
1886  // and valid.
1887  void Alloc(
1888  const VmaAllocationRequest& request,
1889  VmaSuballocationType type,
1890  VkDeviceSize allocSize);
1891 
1892  // Frees suballocation assigned to given memory region.
1893  void Free(const VkMappedMemoryRange* pMemory);
1894 
1895 #if VMA_STATS_STRING_ENABLED
1896  void PrintDetailedMap(class VmaStringBuilder& sb) const;
1897 #endif
1898 
1899 private:
1900  // Given free suballocation, it merges it with following one, which must also be free.
1901  void MergeFreeWithNext(VmaSuballocationList::iterator item);
1902  // Releases given suballocation, making it free. Merges it with adjacent free
1903  // suballocations if applicable.
1904  void FreeSuballocation(VmaSuballocationList::iterator suballocItem);
1905  // Given free suballocation, it inserts it into sorted list of
1906  // m_FreeSuballocationsBySize if it's suitable.
1907  void RegisterFreeSuballocation(VmaSuballocationList::iterator item);
1908  // Given free suballocation, it removes it from sorted list of
1909  // m_FreeSuballocationsBySize if it's suitable.
1910  void UnregisterFreeSuballocation(VmaSuballocationList::iterator item);
1911 };
1912 
1913 // Allocation for an object that has its own private VkDeviceMemory.
1914 struct VmaOwnAllocation
1915 {
1916  VkDeviceMemory m_hMemory;
1917  VkDeviceSize m_Size;
1918  VmaSuballocationType m_Type;
1919 };
1920 
1921 struct VmaOwnAllocationMemoryHandleLess
1922 {
1923  bool operator()(const VmaOwnAllocation& lhs, const VmaOwnAllocation& rhs) const
1924  {
1925  return lhs.m_hMemory < rhs.m_hMemory;
1926  }
1927  bool operator()(const VmaOwnAllocation& lhs, VkDeviceMemory rhsMem) const
1928  {
1929  return lhs.m_hMemory < rhsMem;
1930  }
1931 };
1932 
1933 /* Sequence of VmaAllocation. Represents memory blocks allocated for a specific
1934 Vulkan memory type. */
1935 struct VmaAllocationVector
1936 {
1937  // Incrementally sorted by sumFreeSize, ascending.
1938  VmaVector< VmaAllocation*, VmaStlAllocator<VmaAllocation*> > m_Allocations;
1939 
1940  VmaAllocationVector(VmaAllocator hAllocator);
1941  ~VmaAllocationVector();
1942 
1943  bool IsEmpty() const { return m_Allocations.empty(); }
1944 
1945  // Tries to free memory from any if its Allocations.
1946  // Returns index of Allocation that the memory was freed from, or -1 if not found.
1947  size_t Free(const VkMappedMemoryRange* pMemory);
1948 
1949  // Performs single step in sorting m_Allocations. They may not be fully sorted
1950  // after this call.
1951  void IncrementallySortAllocations();
1952 
1953  // Adds statistics of this AllocationVector to pStats.
1954  void AddStats(VmaStats* pStats, uint32_t memTypeIndex, uint32_t memHeapIndex) const;
1955 
1956 #if VMA_STATS_STRING_ENABLED
1957  void PrintDetailedMap(class VmaStringBuilder& sb) const;
1958 #endif
1959 
1960 private:
1961  VmaAllocator m_hAllocator;
1962 };
1963 
1964 // Main allocator object.
1965 struct VmaAllocator_T
1966 {
1967  VkDevice m_hDevice;
1968  bool m_AllocationCallbacksSpecified;
1969  VkAllocationCallbacks m_AllocationCallbacks;
1970  VkDeviceSize m_PreferredLargeHeapBlockSize;
1971  VkDeviceSize m_PreferredSmallHeapBlockSize;
1972 
1973  VkPhysicalDeviceProperties m_PhysicalDeviceProperties;
1974  VkPhysicalDeviceMemoryProperties m_MemProps;
1975 
1976  VmaAllocationVector* m_pAllocations[VK_MAX_MEMORY_TYPES];
1977  /* There can be at most one allocation that is completely empty - a
1978  hysteresis to avoid pessimistic case of alternating creation and destruction
1979  of a VkDeviceMemory. */
1980  bool m_HasEmptyAllocation[VK_MAX_MEMORY_TYPES];
1981  VMA_MUTEX m_AllocationsMutex[VK_MAX_MEMORY_TYPES];
1982 
1983  // Each vector is sorted by memory (handle value).
1984  typedef VmaVector< VmaOwnAllocation, VmaStlAllocator<VmaOwnAllocation> > OwnAllocationVectorType;
1985  OwnAllocationVectorType* m_pOwnAllocations[VK_MAX_MEMORY_TYPES];
1986  VMA_MUTEX m_OwnAllocationsMutex[VK_MAX_MEMORY_TYPES];
1987 
1988  // Sorted by first (VkBuffer handle value).
1989  VMA_MAP_TYPE(VkBuffer, VkMappedMemoryRange) m_BufferToMemoryMap;
1990  VMA_MUTEX m_BufferToMemoryMapMutex;
1991  // Sorted by first (VkImage handle value).
1992  VMA_MAP_TYPE(VkImage, VkMappedMemoryRange) m_ImageToMemoryMap;
1993  VMA_MUTEX m_ImageToMemoryMapMutex;
1994 
1995  VmaAllocator_T(const VmaAllocatorCreateInfo* pCreateInfo);
1996  ~VmaAllocator_T();
1997 
1998  const VkAllocationCallbacks* GetAllocationCallbacks() const
1999  {
2000  return m_AllocationCallbacksSpecified ? &m_AllocationCallbacks : 0;
2001  }
2002 
2003  VkDeviceSize GetPreferredBlockSize(uint32_t memTypeIndex) const;
2004 
2005  VkDeviceSize GetBufferImageGranularity() const
2006  {
2007  return VMA_MAX(
2008  static_cast<VkDeviceSize>(VMA_DEBUG_MIN_BUFFER_IMAGE_GRANULARITY),
2009  m_PhysicalDeviceProperties.limits.bufferImageGranularity);
2010  }
2011 
2012  uint32_t GetMemoryHeapCount() const { return m_MemProps.memoryHeapCount; }
2013  uint32_t GetMemoryTypeCount() const { return m_MemProps.memoryTypeCount; }
2014 
2015  // Main allocation function.
2016  VkResult AllocateMemory(
2017  const VkMemoryRequirements& vkMemReq,
2018  const VmaMemoryRequirements& vmaMemReq,
2019  VmaSuballocationType suballocType,
2020  VkMappedMemoryRange* pMemory,
2021  uint32_t* pMemoryTypeIndex);
2022 
2023  // Main deallocation function.
2024  void FreeMemory(const VkMappedMemoryRange* pMemory);
2025 
2026  void CalculateStats(VmaStats* pStats);
2027 
2028 #if VMA_STATS_STRING_ENABLED
2029  void PrintDetailedMap(class VmaStringBuilder& sb);
2030 #endif
2031 
2032 private:
2033  VkPhysicalDevice m_PhysicalDevice;
2034 
2035  VkResult AllocateMemoryOfType(
2036  const VkMemoryRequirements& vkMemReq,
2037  const VmaMemoryRequirements& vmaMemReq,
2038  uint32_t memTypeIndex,
2039  VmaSuballocationType suballocType,
2040  VkMappedMemoryRange* pMemory);
2041 
2042  // Allocates and registers new VkDeviceMemory specifically for single allocation.
2043  VkResult AllocateOwnMemory(
2044  VkDeviceSize size,
2045  VmaSuballocationType suballocType,
2046  uint32_t memTypeIndex,
2047  VkMappedMemoryRange* pMemory);
2048 
2049  // Tries to free pMemory as Own Memory. Returns true if found and freed.
2050  bool FreeOwnMemory(const VkMappedMemoryRange* pMemory);
2051 };
2052 
2054 // Memory allocation #2 after VmaAllocator_T definition
2055 
2056 static void* VmaMalloc(VmaAllocator hAllocator, size_t size, size_t alignment)
2057 {
2058  return VmaMalloc(&hAllocator->m_AllocationCallbacks, size, alignment);
2059 }
2060 
2061 static void VmaFree(VmaAllocator hAllocator, void* ptr)
2062 {
2063  VmaFree(&hAllocator->m_AllocationCallbacks, ptr);
2064 }
2065 
2066 template<typename T>
2067 static T* VmaAllocate(VmaAllocator hAllocator)
2068 {
2069  return (T*)VmaMalloc(hAllocator, sizeof(T), VMA_ALIGN_OF(T));
2070 }
2071 
2072 template<typename T>
2073 static T* VmaAllocateArray(VmaAllocator hAllocator, size_t count)
2074 {
2075  return (T*)VmaMalloc(hAllocator, sizeof(T) * count, VMA_ALIGN_OF(T));
2076 }
2077 
2078 template<typename T>
2079 static void vma_delete(VmaAllocator hAllocator, T* ptr)
2080 {
2081  if(ptr != VMA_NULL)
2082  {
2083  ptr->~T();
2084  VmaFree(hAllocator, ptr);
2085  }
2086 }
2087 
2088 template<typename T>
2089 static void vma_delete_array(VmaAllocator hAllocator, T* ptr, size_t count)
2090 {
2091  if(ptr != VMA_NULL)
2092  {
2093  for(size_t i = count; i--; )
2094  ptr[i].~T();
2095  VmaFree(hAllocator, ptr);
2096  }
2097 }
2098 
2100 // VmaStringBuilder
2101 
2102 #if VMA_STATS_STRING_ENABLED
2103 
2104 class VmaStringBuilder
2105 {
2106 public:
2107  VmaStringBuilder(VmaAllocator alloc) : m_Data(VmaStlAllocator<char>(alloc->GetAllocationCallbacks())) { }
2108  size_t GetLength() const { return m_Data.size(); }
2109  const char* GetData() const { return m_Data.data(); }
2110 
2111  void Add(char ch) { m_Data.push_back(ch); }
2112  void Add(const char* pStr);
2113  void AddNewLine() { Add('\n'); }
2114  void AddNumber(uint32_t num);
2115  void AddNumber(uint64_t num);
2116  void AddBool(bool b) { Add(b ? "true" : "false"); }
2117  void AddNull() { Add("null"); }
2118  void AddString(const char* pStr);
2119 
2120 private:
2121  VmaVector< char, VmaStlAllocator<char> > m_Data;
2122 };
2123 
2124 void VmaStringBuilder::Add(const char* pStr)
2125 {
2126  const size_t strLen = strlen(pStr);
2127  if(strLen > 0)
2128  {
2129  const size_t oldCount = m_Data.size();
2130  m_Data.resize(oldCount + strLen);
2131  memcpy(m_Data.data() + oldCount, pStr, strLen);
2132  }
2133 }
2134 
2135 void VmaStringBuilder::AddNumber(uint32_t num)
2136 {
2137  char buf[11];
2138  VmaUint32ToStr(buf, sizeof(buf), num);
2139  Add(buf);
2140 }
2141 
2142 void VmaStringBuilder::AddNumber(uint64_t num)
2143 {
2144  char buf[21];
2145  VmaUint64ToStr(buf, sizeof(buf), num);
2146  Add(buf);
2147 }
2148 
2149 void VmaStringBuilder::AddString(const char* pStr)
2150 {
2151  Add('"');
2152  const size_t strLen = strlen(pStr);
2153  for(size_t i = 0; i < strLen; ++i)
2154  {
2155  char ch = pStr[i];
2156  if(ch == '\'')
2157  Add("\\\\");
2158  else if(ch == '"')
2159  Add("\\\"");
2160  else if(ch >= 32)
2161  Add(ch);
2162  else switch(ch)
2163  {
2164  case '\n':
2165  Add("\\n");
2166  break;
2167  case '\r':
2168  Add("\\r");
2169  break;
2170  case '\t':
2171  Add("\\t");
2172  break;
2173  default:
2174  VMA_ASSERT(0 && "Character not currently supported.");
2175  break;
2176  }
2177  }
2178  Add('"');
2179 }
2180 
2182 
2183 // Correspond to values of enum VmaSuballocationType.
2184 static const char* VMA_SUBALLOCATION_TYPE_NAMES[] = {
2185  "FREE",
2186  "UNKNOWN",
2187  "BUFFER",
2188  "IMAGE_UNKNOWN",
2189  "IMAGE_LINEAR",
2190  "IMAGE_OPTIMAL",
2191 };
2192 
2193 static void VmaPrintStatInfo(VmaStringBuilder& sb, const VmaStatInfo& stat)
2194 {
2195  sb.Add("{ \"Allocations\": ");
2196  sb.AddNumber(stat.AllocationCount);
2197  sb.Add(", \"Suballocations\": ");
2198  sb.AddNumber(stat.SuballocationCount);
2199  sb.Add(", \"UnusedRanges\": ");
2200  sb.AddNumber(stat.UnusedRangeCount);
2201  sb.Add(", \"UsedBytes\": ");
2202  sb.AddNumber(stat.UsedBytes);
2203  sb.Add(", \"UnusedBytes\": ");
2204  sb.AddNumber(stat.UnusedBytes);
2205  sb.Add(", \"SuballocationSize\": { \"Min\": ");
2206  sb.AddNumber(stat.SuballocationSizeMin);
2207  sb.Add(", \"Avg\": ");
2208  sb.AddNumber(stat.SuballocationSizeAvg);
2209  sb.Add(", \"Max\": ");
2210  sb.AddNumber(stat.SuballocationSizeMax);
2211  sb.Add(" }, \"UnusedRangeSize\": { \"Min\": ");
2212  sb.AddNumber(stat.UnusedRangeSizeMin);
2213  sb.Add(", \"Avg\": ");
2214  sb.AddNumber(stat.UnusedRangeSizeAvg);
2215  sb.Add(", \"Max\": ");
2216  sb.AddNumber(stat.UnusedRangeSizeMax);
2217  sb.Add(" } }");
2218 }
2219 
2220 #endif // #if VMA_STATS_STRING_ENABLED
2221 
2222 struct VmaSuballocationItemSizeLess
2223 {
2224  bool operator()(
2225  const VmaSuballocationList::iterator lhs,
2226  const VmaSuballocationList::iterator rhs) const
2227  {
2228  return lhs->size < rhs->size;
2229  }
2230  bool operator()(
2231  const VmaSuballocationList::iterator lhs,
2232  VkDeviceSize rhsSize) const
2233  {
2234  return lhs->size < rhsSize;
2235  }
2236 };
2237 
2238 VmaAllocation::VmaAllocation(VmaAllocator hAllocator) :
2239  m_hMemory(VK_NULL_HANDLE),
2240  m_Size(0),
2241  m_FreeCount(0),
2242  m_SumFreeSize(0),
2243  m_Suballocations(VmaStlAllocator<VmaSuballocation>(hAllocator->GetAllocationCallbacks())),
2244  m_FreeSuballocationsBySize(VmaStlAllocator<VmaSuballocationList::iterator>(hAllocator->GetAllocationCallbacks()))
2245 {
2246 }
2247 
2248 void VmaAllocation::Init(VkDeviceMemory newMemory, VkDeviceSize newSize)
2249 {
2250  VMA_ASSERT(m_hMemory == VK_NULL_HANDLE);
2251 
2252  m_hMemory = newMemory;
2253  m_Size = newSize;
2254  m_FreeCount = 1;
2255  m_SumFreeSize = newSize;
2256 
2257  m_Suballocations.clear();
2258  m_FreeSuballocationsBySize.clear();
2259 
2260  VmaSuballocation suballoc = {};
2261  suballoc.offset = 0;
2262  suballoc.size = newSize;
2263  suballoc.type = VMA_SUBALLOCATION_TYPE_FREE;
2264 
2265  m_Suballocations.push_back(suballoc);
2266  VmaSuballocationList::iterator suballocItem = m_Suballocations.end();
2267  --suballocItem;
2268  m_FreeSuballocationsBySize.push_back(suballocItem);
2269 }
2270 
2271 void VmaAllocation::Destroy(VmaAllocator allocator)
2272 {
2273  VMA_ASSERT(m_hMemory != VK_NULL_HANDLE);
2274  vkFreeMemory(allocator->m_hDevice, m_hMemory, allocator->GetAllocationCallbacks());
2275  m_hMemory = VK_NULL_HANDLE;
2276 }
2277 
2278 bool VmaAllocation::Validate() const
2279 {
2280  if((m_hMemory == VK_NULL_HANDLE) ||
2281  (m_Size == 0) ||
2282  m_Suballocations.empty())
2283  {
2284  return false;
2285  }
2286 
2287  // Expected offset of new suballocation as calculates from previous ones.
2288  VkDeviceSize calculatedOffset = 0;
2289  // Expected number of free suballocations as calculated from traversing their list.
2290  uint32_t calculatedFreeCount = 0;
2291  // Expected sum size of free suballocations as calculated from traversing their list.
2292  VkDeviceSize calculatedSumFreeSize = 0;
2293  // Expected number of free suballocations that should be registered in
2294  // m_FreeSuballocationsBySize calculated from traversing their list.
2295  size_t freeSuballocationsToRegister = 0;
2296  // True if previous visisted suballocation was free.
2297  bool prevFree = false;
2298 
2299  for(VmaSuballocationList::const_iterator suballocItem = m_Suballocations.cbegin();
2300  suballocItem != m_Suballocations.cend();
2301  ++suballocItem)
2302  {
2303  const VmaSuballocation& subAlloc = *suballocItem;
2304 
2305  // Actual offset of this suballocation doesn't match expected one.
2306  if(subAlloc.offset != calculatedOffset)
2307  return false;
2308 
2309  const bool currFree = (subAlloc.type == VMA_SUBALLOCATION_TYPE_FREE);
2310  // Two adjacent free suballocations are invalid. They should be merged.
2311  if(prevFree && currFree)
2312  return false;
2313  prevFree = currFree;
2314 
2315  if(currFree)
2316  {
2317  calculatedSumFreeSize += subAlloc.size;
2318  ++calculatedFreeCount;
2319  if(subAlloc.size >= VMA_MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER)
2320  ++freeSuballocationsToRegister;
2321  }
2322 
2323  calculatedOffset += subAlloc.size;
2324  }
2325 
2326  // Number of free suballocations registered in m_FreeSuballocationsBySize doesn't
2327  // match expected one.
2328  if(m_FreeSuballocationsBySize.size() != freeSuballocationsToRegister)
2329  return false;
2330 
2331  VkDeviceSize lastSize = 0;
2332  for(size_t i = 0; i < m_FreeSuballocationsBySize.size(); ++i)
2333  {
2334  VmaSuballocationList::iterator suballocItem = m_FreeSuballocationsBySize[i];
2335 
2336  // Only free suballocations can be registered in m_FreeSuballocationsBySize.
2337  if(suballocItem->type != VMA_SUBALLOCATION_TYPE_FREE)
2338  return false;
2339  // They must be sorted by size ascending.
2340  if(suballocItem->size < lastSize)
2341  return false;
2342 
2343  lastSize = suballocItem->size;
2344  }
2345 
2346  // Check if totals match calculacted values.
2347  return
2348  (calculatedOffset == m_Size) &&
2349  (calculatedSumFreeSize == m_SumFreeSize) &&
2350  (calculatedFreeCount == m_FreeCount);
2351 }
2352 
2353 /*
2354 How many suitable free suballocations to analyze before choosing best one.
2355 - Set to 1 to use First-Fit algorithm - first suitable free suballocation will
2356  be chosen.
2357 - Set to UINT32_MAX to use Best-Fit/Worst-Fit algorithm - all suitable free
2358  suballocations will be analized and best one will be chosen.
2359 - Any other value is also acceptable.
2360 */
2361 //static const uint32_t MAX_SUITABLE_SUBALLOCATIONS_TO_CHECK = 8;
2362 
2363 bool VmaAllocation::CreateAllocationRequest(
2364  VkDeviceSize bufferImageGranularity,
2365  VkDeviceSize allocSize,
2366  VkDeviceSize allocAlignment,
2367  VmaSuballocationType allocType,
2368  VmaAllocationRequest* pAllocationRequest)
2369 {
2370  VMA_ASSERT(allocSize > 0);
2371  VMA_ASSERT(allocType != VMA_SUBALLOCATION_TYPE_FREE);
2372  VMA_ASSERT(pAllocationRequest != VMA_NULL);
2373  VMA_HEAVY_ASSERT(Validate());
2374 
2375  // There is not enough total free space in this allocation to fullfill the request: Early return.
2376  if(m_SumFreeSize < allocSize)
2377  return false;
2378 
2379  // Old brute-force algorithm, linearly searching suballocations.
2380  /*
2381  uint32_t suitableSuballocationsFound = 0;
2382  for(VmaSuballocationList::iterator suballocItem = suballocations.Front();
2383  suballocItem != VMA_NULL &&
2384  suitableSuballocationsFound < MAX_SUITABLE_SUBALLOCATIONS_TO_CHECK;
2385  suballocItem = suballocItem->Next)
2386  {
2387  if(suballocItem->Value.type == VMA_SUBALLOCATION_TYPE_FREE)
2388  {
2389  VkDeviceSize offset = 0, cost = 0;
2390  if(CheckAllocation(bufferImageGranularity, allocSize, allocAlignment, allocType, suballocItem, &offset, &cost))
2391  {
2392  ++suitableSuballocationsFound;
2393  if(cost < costLimit)
2394  {
2395  pAllocationRequest->freeSuballocationItem = suballocItem;
2396  pAllocationRequest->offset = offset;
2397  pAllocationRequest->cost = cost;
2398  if(cost == 0)
2399  return true;
2400  costLimit = cost;
2401  betterSuballocationFound = true;
2402  }
2403  }
2404  }
2405  }
2406  */
2407 
2408  // New algorithm, efficiently searching freeSuballocationsBySize.
2409  const size_t freeSuballocCount = m_FreeSuballocationsBySize.size();
2410  if(freeSuballocCount > 0)
2411  {
2412  if(VMA_BEST_FIT)
2413  {
2414  // Find first free suballocation with size not less than allocSize.
2415  VmaSuballocationList::iterator* const it = VmaBinaryFindFirstNotLess(
2416  m_FreeSuballocationsBySize.data(),
2417  m_FreeSuballocationsBySize.data() + freeSuballocCount,
2418  allocSize,
2419  VmaSuballocationItemSizeLess());
2420  size_t index = it - m_FreeSuballocationsBySize.data();
2421  for(; index < freeSuballocCount; ++index)
2422  {
2423  VkDeviceSize offset = 0;
2424  const VmaSuballocationList::iterator suballocItem = m_FreeSuballocationsBySize[index];
2425  if(CheckAllocation(bufferImageGranularity, allocSize, allocAlignment, allocType, suballocItem, &offset))
2426  {
2427  pAllocationRequest->freeSuballocationItem = suballocItem;
2428  pAllocationRequest->offset = offset;
2429  return true;
2430  }
2431  }
2432  }
2433  else
2434  {
2435  // Search staring from biggest suballocations.
2436  for(size_t index = freeSuballocCount; index--; )
2437  {
2438  VkDeviceSize offset = 0;
2439  const VmaSuballocationList::iterator suballocItem = m_FreeSuballocationsBySize[index];
2440  if(CheckAllocation(bufferImageGranularity, allocSize, allocAlignment, allocType, suballocItem, &offset))
2441  {
2442  pAllocationRequest->freeSuballocationItem = suballocItem;
2443  pAllocationRequest->offset = offset;
2444  return true;
2445  }
2446  }
2447  }
2448  }
2449 
2450  return false;
2451 }
2452 
2453 bool VmaAllocation::CheckAllocation(
2454  VkDeviceSize bufferImageGranularity,
2455  VkDeviceSize allocSize,
2456  VkDeviceSize allocAlignment,
2457  VmaSuballocationType allocType,
2458  VmaSuballocationList::const_iterator freeSuballocItem,
2459  VkDeviceSize* pOffset) const
2460 {
2461  VMA_ASSERT(allocSize > 0);
2462  VMA_ASSERT(allocType != VMA_SUBALLOCATION_TYPE_FREE);
2463  VMA_ASSERT(freeSuballocItem != m_Suballocations.cend());
2464  VMA_ASSERT(pOffset != VMA_NULL);
2465 
2466  const VmaSuballocation& suballoc = *freeSuballocItem;
2467  VMA_ASSERT(suballoc.type == VMA_SUBALLOCATION_TYPE_FREE);
2468 
2469  // Size of this suballocation is too small for this request: Early return.
2470  if(suballoc.size < allocSize)
2471  return false;
2472 
2473  // Start from offset equal to beginning of this suballocation.
2474  *pOffset = suballoc.offset;
2475 
2476  // Apply VMA_DEBUG_MARGIN at the beginning.
2477  if((VMA_DEBUG_MARGIN > 0) && freeSuballocItem != m_Suballocations.cbegin())
2478  *pOffset += VMA_DEBUG_MARGIN;
2479 
2480  // Apply alignment.
2481  const VkDeviceSize alignment = VMA_MAX(allocAlignment, static_cast<VkDeviceSize>(VMA_DEBUG_ALIGNMENT));
2482  *pOffset = VmaAlignUp(*pOffset, alignment);
2483 
2484  // Check previous suballocations for BufferImageGranularity conflicts.
2485  // Make bigger alignment if necessary.
2486  if(bufferImageGranularity > 1)
2487  {
2488  bool bufferImageGranularityConflict = false;
2489  VmaSuballocationList::const_iterator prevSuballocItem = freeSuballocItem;
2490  while(prevSuballocItem != m_Suballocations.cbegin())
2491  {
2492  --prevSuballocItem;
2493  const VmaSuballocation& prevSuballoc = *prevSuballocItem;
2494  if(VmaBlocksOnSamePage(prevSuballoc.offset, prevSuballoc.size, *pOffset, bufferImageGranularity))
2495  {
2496  if(VmaIsBufferImageGranularityConflict(prevSuballoc.type, allocType))
2497  {
2498  bufferImageGranularityConflict = true;
2499  break;
2500  }
2501  }
2502  else
2503  // Already on previous page.
2504  break;
2505  }
2506  if(bufferImageGranularityConflict)
2507  *pOffset = VmaAlignUp(*pOffset, bufferImageGranularity);
2508  }
2509 
2510  // Calculate padding at the beginning based on current offset.
2511  const VkDeviceSize paddingBegin = *pOffset - suballoc.offset;
2512 
2513  // Calculate required margin at the end if this is not last suballocation.
2514  VmaSuballocationList::const_iterator next = freeSuballocItem;
2515  ++next;
2516  const VkDeviceSize requiredEndMargin =
2517  (next != m_Suballocations.cend()) ? VMA_DEBUG_MARGIN : 0;
2518 
2519  // Fail if requested size plus margin before and after is bigger than size of this suballocation.
2520  if(paddingBegin + allocSize + requiredEndMargin > suballoc.size)
2521  return false;
2522 
2523  // Check next suballocations for BufferImageGranularity conflicts.
2524  // If conflict exists, allocation cannot be made here.
2525  if(bufferImageGranularity > 1)
2526  {
2527  VmaSuballocationList::const_iterator nextSuballocItem = freeSuballocItem;
2528  ++nextSuballocItem;
2529  while(nextSuballocItem != m_Suballocations.cend())
2530  {
2531  const VmaSuballocation& nextSuballoc = *nextSuballocItem;
2532  if(VmaBlocksOnSamePage(*pOffset, allocSize, nextSuballoc.offset, bufferImageGranularity))
2533  {
2534  if(VmaIsBufferImageGranularityConflict(allocType, nextSuballoc.type))
2535  return false;
2536  }
2537  else
2538  // Already on next page.
2539  break;
2540  ++nextSuballocItem;
2541  }
2542  }
2543 
2544  // All tests passed: Success. pOffset is already filled.
2545  return true;
2546 }
2547 
2548 bool VmaAllocation::IsEmpty() const
2549 {
2550  return (m_Suballocations.size() == 1) && (m_FreeCount == 1);
2551 }
2552 
2553 void VmaAllocation::Alloc(
2554  const VmaAllocationRequest& request,
2555  VmaSuballocationType type,
2556  VkDeviceSize allocSize)
2557 {
2558  VMA_ASSERT(request.freeSuballocationItem != m_Suballocations.end());
2559  VmaSuballocation& suballoc = *request.freeSuballocationItem;
2560  // Given suballocation is a free block.
2561  VMA_ASSERT(suballoc.type == VMA_SUBALLOCATION_TYPE_FREE);
2562  // Given offset is inside this suballocation.
2563  VMA_ASSERT(request.offset >= suballoc.offset);
2564  const VkDeviceSize paddingBegin = request.offset - suballoc.offset;
2565  VMA_ASSERT(suballoc.size >= paddingBegin + allocSize);
2566  const VkDeviceSize paddingEnd = suballoc.size - paddingBegin - allocSize;
2567 
2568  // Unregister this free suballocation from m_FreeSuballocationsBySize and update
2569  // it to become used.
2570  UnregisterFreeSuballocation(request.freeSuballocationItem);
2571 
2572  suballoc.offset = request.offset;
2573  suballoc.size = allocSize;
2574  suballoc.type = type;
2575 
2576  // If there are any free bytes remaining at the end, insert new free suballocation after current one.
2577  if(paddingEnd)
2578  {
2579  VmaSuballocation paddingSuballoc = {};
2580  paddingSuballoc.offset = request.offset + allocSize;
2581  paddingSuballoc.size = paddingEnd;
2582  paddingSuballoc.type = VMA_SUBALLOCATION_TYPE_FREE;
2583  VmaSuballocationList::iterator next = request.freeSuballocationItem;
2584  ++next;
2585  const VmaSuballocationList::iterator paddingEndItem =
2586  m_Suballocations.insert(next, paddingSuballoc);
2587  RegisterFreeSuballocation(paddingEndItem);
2588  }
2589 
2590  // If there are any free bytes remaining at the beginning, insert new free suballocation before current one.
2591  if(paddingBegin)
2592  {
2593  VmaSuballocation paddingSuballoc = {};
2594  paddingSuballoc.offset = request.offset - paddingBegin;
2595  paddingSuballoc.size = paddingBegin;
2596  paddingSuballoc.type = VMA_SUBALLOCATION_TYPE_FREE;
2597  const VmaSuballocationList::iterator paddingBeginItem =
2598  m_Suballocations.insert(request.freeSuballocationItem, paddingSuballoc);
2599  RegisterFreeSuballocation(paddingBeginItem);
2600  }
2601 
2602  // Update totals.
2603  m_FreeCount = m_FreeCount - 1;
2604  if(paddingBegin > 0)
2605  ++m_FreeCount;
2606  if(paddingEnd > 0)
2607  ++m_FreeCount;
2608  m_SumFreeSize -= allocSize;
2609 }
2610 
2611 void VmaAllocation::FreeSuballocation(VmaSuballocationList::iterator suballocItem)
2612 {
2613  // Change this suballocation to be marked as free.
2614  VmaSuballocation& suballoc = *suballocItem;
2615  suballoc.type = VMA_SUBALLOCATION_TYPE_FREE;
2616 
2617  // Update totals.
2618  ++m_FreeCount;
2619  m_SumFreeSize += suballoc.size;
2620 
2621  // Merge with previous and/or next suballocation if it's also free.
2622  bool mergeWithNext = false;
2623  bool mergeWithPrev = false;
2624 
2625  VmaSuballocationList::iterator nextItem = suballocItem;
2626  ++nextItem;
2627  if((nextItem != m_Suballocations.end()) && (nextItem->type == VMA_SUBALLOCATION_TYPE_FREE))
2628  mergeWithNext = true;
2629 
2630  VmaSuballocationList::iterator prevItem = suballocItem;
2631  if(suballocItem != m_Suballocations.begin())
2632  {
2633  --prevItem;
2634  if(prevItem->type == VMA_SUBALLOCATION_TYPE_FREE)
2635  mergeWithPrev = true;
2636  }
2637 
2638  if(mergeWithNext)
2639  {
2640  UnregisterFreeSuballocation(nextItem);
2641  MergeFreeWithNext(suballocItem);
2642  }
2643 
2644  if(mergeWithPrev)
2645  {
2646  UnregisterFreeSuballocation(prevItem);
2647  MergeFreeWithNext(prevItem);
2648  RegisterFreeSuballocation(prevItem);
2649  }
2650  else
2651  RegisterFreeSuballocation(suballocItem);
2652 }
2653 
2654 void VmaAllocation::Free(const VkMappedMemoryRange* pMemory)
2655 {
2656  // If suballocation to free has offset smaller than half of allocation size, search forward.
2657  // Otherwise search backward.
2658  const bool forwardDirection = pMemory->offset < (m_Size / 2);
2659  if(forwardDirection)
2660  {
2661  for(VmaSuballocationList::iterator suballocItem = m_Suballocations.begin();
2662  suballocItem != m_Suballocations.end();
2663  ++suballocItem)
2664  {
2665  VmaSuballocation& suballoc = *suballocItem;
2666  if(suballoc.offset == pMemory->offset)
2667  {
2668  FreeSuballocation(suballocItem);
2669  VMA_HEAVY_ASSERT(Validate());
2670  return;
2671  }
2672  }
2673  VMA_ASSERT(0 && "Not found!");
2674  }
2675  else
2676  {
2677  for(VmaSuballocationList::iterator suballocItem = m_Suballocations.begin();
2678  suballocItem != m_Suballocations.end();
2679  ++suballocItem)
2680  {
2681  VmaSuballocation& suballoc = *suballocItem;
2682  if(suballoc.offset == pMemory->offset)
2683  {
2684  FreeSuballocation(suballocItem);
2685  VMA_HEAVY_ASSERT(Validate());
2686  return;
2687  }
2688  }
2689  VMA_ASSERT(0 && "Not found!");
2690  }
2691 }
2692 
2693 #if VMA_STATS_STRING_ENABLED
2694 
2695 void VmaAllocation::PrintDetailedMap(class VmaStringBuilder& sb) const
2696 {
2697  sb.Add("{\n\t\t\t\"Bytes\": ");
2698  sb.AddNumber(m_Size);
2699  sb.Add(",\n\t\t\t\"FreeBytes\": ");
2700  sb.AddNumber(m_SumFreeSize);
2701  sb.Add(",\n\t\t\t\"Suballocations\": ");
2702  sb.AddNumber(m_Suballocations.size());
2703  sb.Add(",\n\t\t\t\"FreeSuballocations\": ");
2704  sb.AddNumber(m_FreeCount);
2705  sb.Add(",\n\t\t\t\"SuballocationList\": [");
2706 
2707  size_t i = 0;
2708  for(VmaSuballocationList::const_iterator suballocItem = m_Suballocations.cbegin();
2709  suballocItem != m_Suballocations.cend();
2710  ++suballocItem, ++i)
2711  {
2712  if(i > 0)
2713  sb.Add(",\n\t\t\t\t{ \"Type\": ");
2714  else
2715  sb.Add("\n\t\t\t\t{ \"Type\": ");
2716  sb.AddString(VMA_SUBALLOCATION_TYPE_NAMES[suballocItem->type]);
2717  sb.Add(", \"Size\": ");
2718  sb.AddNumber(suballocItem->size);
2719  sb.Add(", \"Offset\": ");
2720  sb.AddNumber(suballocItem->offset);
2721  sb.Add(" }");
2722  }
2723 
2724  sb.Add("\n\t\t\t]\n\t\t}");
2725 }
2726 
2727 #endif // #if VMA_STATS_STRING_ENABLED
2728 
2729 void VmaAllocation::MergeFreeWithNext(VmaSuballocationList::iterator item)
2730 {
2731  VMA_ASSERT(item != m_Suballocations.end());
2732  VMA_ASSERT(item->type == VMA_SUBALLOCATION_TYPE_FREE);
2733 
2734  VmaSuballocationList::iterator nextItem = item;
2735  ++nextItem;
2736  VMA_ASSERT(nextItem != m_Suballocations.end());
2737  VMA_ASSERT(nextItem->type == VMA_SUBALLOCATION_TYPE_FREE);
2738 
2739  item->size += nextItem->size;
2740  --m_FreeCount;
2741  m_Suballocations.erase(nextItem);
2742 }
2743 
2744 void VmaAllocation::RegisterFreeSuballocation(VmaSuballocationList::iterator item)
2745 {
2746  VMA_ASSERT(item->type == VMA_SUBALLOCATION_TYPE_FREE);
2747  VMA_ASSERT(item->size > 0);
2748 
2749  if(item->size >= VMA_MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER)
2750  {
2751  if(m_FreeSuballocationsBySize.empty())
2752  m_FreeSuballocationsBySize.push_back(item);
2753  else
2754  {
2755  VmaSuballocationList::iterator* const it = VmaBinaryFindFirstNotLess(
2756  m_FreeSuballocationsBySize.data(),
2757  m_FreeSuballocationsBySize.data() + m_FreeSuballocationsBySize.size(),
2758  item,
2759  VmaSuballocationItemSizeLess());
2760  size_t index = it - m_FreeSuballocationsBySize.data();
2761  VectorInsert(m_FreeSuballocationsBySize, index, item);
2762  }
2763  }
2764 }
2765 
2766 void VmaAllocation::UnregisterFreeSuballocation(VmaSuballocationList::iterator item)
2767 {
2768  VMA_ASSERT(item->type == VMA_SUBALLOCATION_TYPE_FREE);
2769  VMA_ASSERT(item->size > 0);
2770 
2771  if(item->size >= VMA_MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER)
2772  {
2773  VmaSuballocationList::iterator* const it = VmaBinaryFindFirstNotLess(
2774  m_FreeSuballocationsBySize.data(),
2775  m_FreeSuballocationsBySize.data() + m_FreeSuballocationsBySize.size(),
2776  item,
2777  VmaSuballocationItemSizeLess());
2778  for(size_t index = it - m_FreeSuballocationsBySize.data();
2779  index < m_FreeSuballocationsBySize.size();
2780  ++index)
2781  {
2782  if(m_FreeSuballocationsBySize[index] == item)
2783  {
2784  VectorRemove(m_FreeSuballocationsBySize, index);
2785  return;
2786  }
2787  VMA_ASSERT((m_FreeSuballocationsBySize[index]->size == item->size) && "Not found.");
2788  }
2789  VMA_ASSERT(0 && "Not found.");
2790  }
2791 }
2792 
2793 static void InitStatInfo(VmaStatInfo& outInfo)
2794 {
2795  memset(&outInfo, 0, sizeof(outInfo));
2796  outInfo.SuballocationSizeMin = UINT64_MAX;
2797  outInfo.UnusedRangeSizeMin = UINT64_MAX;
2798 }
2799 
2800 static void CalcAllocationStatInfo(VmaStatInfo& outInfo, const VmaAllocation& alloc)
2801 {
2802  outInfo.AllocationCount = 1;
2803 
2804  const uint32_t rangeCount = (uint32_t)alloc.m_Suballocations.size();
2805  outInfo.SuballocationCount = rangeCount - alloc.m_FreeCount;
2806  outInfo.UnusedRangeCount = alloc.m_FreeCount;
2807 
2808  outInfo.UnusedBytes = alloc.m_SumFreeSize;
2809  outInfo.UsedBytes = alloc.m_Size - outInfo.UnusedBytes;
2810 
2811  outInfo.SuballocationSizeMin = UINT64_MAX;
2812  outInfo.SuballocationSizeMax = 0;
2813  outInfo.UnusedRangeSizeMin = UINT64_MAX;
2814  outInfo.UnusedRangeSizeMax = 0;
2815 
2816  for(VmaSuballocationList::const_iterator suballocItem = alloc.m_Suballocations.cbegin();
2817  suballocItem != alloc.m_Suballocations.cend();
2818  ++suballocItem)
2819  {
2820  const VmaSuballocation& suballoc = *suballocItem;
2821  if(suballoc.type != VMA_SUBALLOCATION_TYPE_FREE)
2822  {
2823  outInfo.SuballocationSizeMin = VMA_MIN(outInfo.SuballocationSizeMin, suballoc.size);
2824  outInfo.SuballocationSizeMax = VMA_MAX(outInfo.SuballocationSizeMax, suballoc.size);
2825  }
2826  else
2827  {
2828  outInfo.UnusedRangeSizeMin = VMA_MIN(outInfo.UnusedRangeSizeMin, suballoc.size);
2829  outInfo.UnusedRangeSizeMax = VMA_MAX(outInfo.UnusedRangeSizeMax, suballoc.size);
2830  }
2831  }
2832 }
2833 
2834 // Adds statistics srcInfo into inoutInfo, like: inoutInfo += srcInfo.
2835 static void VmaAddStatInfo(VmaStatInfo& inoutInfo, const VmaStatInfo& srcInfo)
2836 {
2837  inoutInfo.AllocationCount += srcInfo.AllocationCount;
2838  inoutInfo.SuballocationCount += srcInfo.SuballocationCount;
2839  inoutInfo.UnusedRangeCount += srcInfo.UnusedRangeCount;
2840  inoutInfo.UsedBytes += srcInfo.UsedBytes;
2841  inoutInfo.UnusedBytes += srcInfo.UnusedBytes;
2842  inoutInfo.SuballocationSizeMin = VMA_MIN(inoutInfo.SuballocationSizeMin, srcInfo.SuballocationSizeMin);
2843  inoutInfo.SuballocationSizeMax = VMA_MAX(inoutInfo.SuballocationSizeMax, srcInfo.SuballocationSizeMax);
2844  inoutInfo.UnusedRangeSizeMin = VMA_MIN(inoutInfo.UnusedRangeSizeMin, srcInfo.UnusedRangeSizeMin);
2845  inoutInfo.UnusedRangeSizeMax = VMA_MAX(inoutInfo.UnusedRangeSizeMax, srcInfo.UnusedRangeSizeMax);
2846 }
2847 
2848 static void VmaPostprocessCalcStatInfo(VmaStatInfo& inoutInfo)
2849 {
2850  inoutInfo.SuballocationSizeAvg = (inoutInfo.SuballocationCount > 0) ?
2851  VmaRoundDiv<VkDeviceSize>(inoutInfo.UsedBytes, inoutInfo.SuballocationCount) : 0;
2852  inoutInfo.UnusedRangeSizeAvg = (inoutInfo.UnusedRangeCount > 0) ?
2853  VmaRoundDiv<VkDeviceSize>(inoutInfo.UnusedBytes, inoutInfo.UnusedRangeCount) : 0;
2854 }
2855 
2856 VmaAllocationVector::VmaAllocationVector(VmaAllocator hAllocator) :
2857  m_hAllocator(hAllocator),
2858  m_Allocations(VmaStlAllocator<VmaAllocation*>(hAllocator->GetAllocationCallbacks()))
2859 {
2860 }
2861 
2862 VmaAllocationVector::~VmaAllocationVector()
2863 {
2864  for(size_t i = m_Allocations.size(); i--; )
2865  {
2866  m_Allocations[i]->Destroy(m_hAllocator);
2867  vma_delete(m_hAllocator, m_Allocations[i]);
2868  }
2869 }
2870 
2871 size_t VmaAllocationVector::Free(const VkMappedMemoryRange* pMemory)
2872 {
2873  for(uint32_t allocIndex = 0; allocIndex < m_Allocations.size(); ++allocIndex)
2874  {
2875  VmaAllocation* const pAlloc = m_Allocations[allocIndex];
2876  VMA_ASSERT(pAlloc);
2877  if(pAlloc->m_hMemory == pMemory->memory)
2878  {
2879  pAlloc->Free(pMemory);
2880  VMA_HEAVY_ASSERT(pAlloc->Validate());
2881  return allocIndex;
2882  }
2883  }
2884 
2885  return (size_t)-1;
2886 }
2887 
2888 void VmaAllocationVector::IncrementallySortAllocations()
2889 {
2890  // Bubble sort only until first swap.
2891  for(size_t i = 1; i < m_Allocations.size(); ++i)
2892  {
2893  if(m_Allocations[i - 1]->m_SumFreeSize > m_Allocations[i]->m_SumFreeSize)
2894  {
2895  VMA_SWAP(m_Allocations[i - 1], m_Allocations[i]);
2896  return;
2897  }
2898  }
2899 }
2900 
2901 #if VMA_STATS_STRING_ENABLED
2902 
2903 void VmaAllocationVector::PrintDetailedMap(class VmaStringBuilder& sb) const
2904 {
2905  for(size_t i = 0; i < m_Allocations.size(); ++i)
2906  {
2907  if(i > 0)
2908  sb.Add(",\n\t\t");
2909  else
2910  sb.Add("\n\t\t");
2911  m_Allocations[i]->PrintDetailedMap(sb);
2912  }
2913 }
2914 
2915 #endif // #if VMA_STATS_STRING_ENABLED
2916 
2917 void VmaAllocationVector::AddStats(VmaStats* pStats, uint32_t memTypeIndex, uint32_t memHeapIndex) const
2918 {
2919  for(uint32_t allocIndex = 0; allocIndex < m_Allocations.size(); ++allocIndex)
2920  {
2921  const VmaAllocation* const pAlloc = m_Allocations[allocIndex];
2922  VMA_ASSERT(pAlloc);
2923  VMA_HEAVY_ASSERT(pAlloc->Validate());
2924  VmaStatInfo allocationStatInfo;
2925  CalcAllocationStatInfo(allocationStatInfo, *pAlloc);
2926  VmaAddStatInfo(pStats->total, allocationStatInfo);
2927  VmaAddStatInfo(pStats->memoryType[memTypeIndex], allocationStatInfo);
2928  VmaAddStatInfo(pStats->memoryHeap[memHeapIndex], allocationStatInfo);
2929  }
2930 }
2931 
2933 // VmaAllocator_T
2934 
2935 VmaAllocator_T::VmaAllocator_T(const VmaAllocatorCreateInfo* pCreateInfo) :
2936  m_PhysicalDevice(pCreateInfo->physicalDevice),
2937  m_hDevice(pCreateInfo->device),
2938  m_AllocationCallbacksSpecified(pCreateInfo->pAllocationCallbacks != VMA_NULL),
2939  m_AllocationCallbacks(pCreateInfo->pAllocationCallbacks ?
2940  *pCreateInfo->pAllocationCallbacks : VmaEmptyAllocationCallbacks),
2941  m_PreferredLargeHeapBlockSize(0),
2942  m_PreferredSmallHeapBlockSize(0),
2943  m_BufferToMemoryMap(VmaStlAllocator< VmaPair<VkBuffer, VkMappedMemoryRange> >(pCreateInfo->pAllocationCallbacks)),
2944  m_ImageToMemoryMap(VmaStlAllocator< VmaPair<VkImage, VkMappedMemoryRange> >(pCreateInfo->pAllocationCallbacks))
2945 {
2946  VMA_ASSERT(pCreateInfo->physicalDevice && pCreateInfo->device);
2947 
2948  memset(&m_MemProps, 0, sizeof(m_MemProps));
2949  memset(&m_PhysicalDeviceProperties, 0, sizeof(m_PhysicalDeviceProperties));
2950 
2951  memset(&m_pAllocations, 0, sizeof(m_pAllocations));
2952  memset(&m_HasEmptyAllocation, 0, sizeof(m_HasEmptyAllocation));
2953  memset(&m_pOwnAllocations, 0, sizeof(m_pOwnAllocations));
2954 
2955  m_PreferredLargeHeapBlockSize = (pCreateInfo->preferredLargeHeapBlockSize != 0) ?
2956  pCreateInfo->preferredLargeHeapBlockSize : static_cast<VkDeviceSize>(VMA_DEFAULT_LARGE_HEAP_BLOCK_SIZE);
2957  m_PreferredSmallHeapBlockSize = (pCreateInfo->preferredSmallHeapBlockSize != 0) ?
2958  pCreateInfo->preferredSmallHeapBlockSize : static_cast<VkDeviceSize>(VMA_DEFAULT_SMALL_HEAP_BLOCK_SIZE);
2959 
2960  vkGetPhysicalDeviceProperties(m_PhysicalDevice, &m_PhysicalDeviceProperties);
2961  vkGetPhysicalDeviceMemoryProperties(m_PhysicalDevice, &m_MemProps);
2962 
2963  for(size_t i = 0; i < GetMemoryTypeCount(); ++i)
2964  {
2965  m_pAllocations[i] = vma_new(this, VmaAllocationVector)(this);
2966  m_pOwnAllocations[i] = vma_new(this, OwnAllocationVectorType)(VmaStlAllocator<VmaOwnAllocation>(GetAllocationCallbacks()));
2967  }
2968 }
2969 
2970 VmaAllocator_T::~VmaAllocator_T()
2971 {
2972  for(VMA_MAP_TYPE(VkImage, VkMappedMemoryRange)::iterator it = m_ImageToMemoryMap.begin();
2973  it != m_ImageToMemoryMap.end();
2974  ++it)
2975  {
2976  vkDestroyImage(m_hDevice, it->first, GetAllocationCallbacks());
2977  }
2978 
2979  for(VMA_MAP_TYPE(VkBuffer, VkMappedMemoryRange)::iterator it = m_BufferToMemoryMap.begin();
2980  it != m_BufferToMemoryMap.end();
2981  ++it)
2982  {
2983  vkDestroyBuffer(m_hDevice, it->first, GetAllocationCallbacks());
2984  }
2985 
2986  for(uint32_t typeIndex = 0; typeIndex < GetMemoryTypeCount(); ++typeIndex)
2987  {
2988  OwnAllocationVectorType* pOwnAllocations = m_pOwnAllocations[typeIndex];
2989  VMA_ASSERT(pOwnAllocations);
2990  for(size_t allocationIndex = 0; allocationIndex < pOwnAllocations->size(); ++allocationIndex)
2991  {
2992  const VmaOwnAllocation& ownAlloc = (*pOwnAllocations)[allocationIndex];
2993  vkFreeMemory(m_hDevice, ownAlloc.m_hMemory, GetAllocationCallbacks());
2994  }
2995  }
2996 
2997  for(size_t i = GetMemoryTypeCount(); i--; )
2998  {
2999  vma_delete(this, m_pAllocations[i]);
3000  vma_delete(this, m_pOwnAllocations[i]);
3001  }
3002 }
3003 
3004 VkDeviceSize VmaAllocator_T::GetPreferredBlockSize(uint32_t memTypeIndex) const
3005 {
3006  VkDeviceSize heapSize = m_MemProps.memoryHeaps[m_MemProps.memoryTypes[memTypeIndex].heapIndex].size;
3007  return (heapSize <= VMA_SMALL_HEAP_MAX_SIZE) ?
3008  m_PreferredSmallHeapBlockSize : m_PreferredLargeHeapBlockSize;
3009 }
3010 
3011 VkResult VmaAllocator_T::AllocateMemoryOfType(
3012  const VkMemoryRequirements& vkMemReq,
3013  const VmaMemoryRequirements& vmaMemReq,
3014  uint32_t memTypeIndex,
3015  VmaSuballocationType suballocType,
3016  VkMappedMemoryRange* pMemory)
3017 {
3018  VMA_DEBUG_LOG(" AllocateMemory: MemoryTypeIndex=%u, Size=%llu", memTypeIndex, vkMemReq.size);
3019 
3020  pMemory->sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE;
3021  pMemory->pNext = VMA_NULL;
3022  pMemory->size = vkMemReq.size;
3023 
3024  const VkDeviceSize preferredBlockSize = GetPreferredBlockSize(memTypeIndex);
3025  // Heuristics: Allocate own memory if requested size if greater than half of preferred block size.
3026  const bool ownMemory =
3027  vmaMemReq.ownMemory ||
3028  VMA_DEBUG_ALWAYS_OWN_MEMORY ||
3029  ((vmaMemReq.neverAllocate == false) && (vkMemReq.size > preferredBlockSize / 2));
3030 
3031  if(ownMemory)
3032  {
3033  if(vmaMemReq.neverAllocate)
3034  return VK_ERROR_OUT_OF_DEVICE_MEMORY;
3035  else
3036  return AllocateOwnMemory(vkMemReq.size, suballocType, memTypeIndex, pMemory);
3037  }
3038  else
3039  {
3040  VmaMutexLock lock(m_AllocationsMutex[memTypeIndex]);
3041  VmaAllocationVector* const allocationVector = m_pAllocations[memTypeIndex];
3042  VMA_ASSERT(allocationVector);
3043 
3044  // 1. Search existing allocations.
3045  // Forward order - prefer blocks with smallest amount of free space.
3046  for(size_t allocIndex = 0; allocIndex < allocationVector->m_Allocations.size(); ++allocIndex )
3047  {
3048  VmaAllocation* const pAlloc = allocationVector->m_Allocations[allocIndex];
3049  VMA_ASSERT(pAlloc);
3050  VmaAllocationRequest allocRequest = {};
3051  // Check if can allocate from pAlloc.
3052  if(pAlloc->CreateAllocationRequest(
3053  GetBufferImageGranularity(),
3054  vkMemReq.size,
3055  vkMemReq.alignment,
3056  suballocType,
3057  &allocRequest))
3058  {
3059  // We no longer have an empty Allocation.
3060  if(pAlloc->IsEmpty())
3061  m_HasEmptyAllocation[memTypeIndex] = false;
3062  // Allocate from this pAlloc.
3063  pAlloc->Alloc(allocRequest, suballocType, vkMemReq.size);
3064  // Return VkDeviceMemory and offset (size already filled above).
3065  pMemory->memory = pAlloc->m_hMemory;
3066  pMemory->offset = allocRequest.offset;
3067  VMA_HEAVY_ASSERT(pAlloc->Validate());
3068  VMA_DEBUG_LOG(" Returned from existing allocation #%u", (uint32_t)allocIndex);
3069  return VK_SUCCESS;
3070  }
3071  }
3072 
3073  // 2. Create new Allocation.
3074  if(vmaMemReq.neverAllocate)
3075  {
3076  VMA_DEBUG_LOG(" FAILED due to VmaMemoryRequirements::neverAllocate");
3077  return VK_ERROR_OUT_OF_DEVICE_MEMORY;
3078  }
3079  else
3080  {
3081  // Start with full preferredBlockSize.
3082  VkMemoryAllocateInfo allocInfo = { VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO };
3083  allocInfo.memoryTypeIndex = memTypeIndex;
3084  allocInfo.allocationSize = preferredBlockSize;
3085  VkDeviceMemory mem = VK_NULL_HANDLE;
3086  VkResult res = vkAllocateMemory(m_hDevice, &allocInfo, GetAllocationCallbacks(), &mem);
3087  if(res < 0)
3088  {
3089  // 3. Try half the size.
3090  allocInfo.allocationSize /= 2;
3091  if(allocInfo.allocationSize >= vkMemReq.size)
3092  {
3093  res = vkAllocateMemory(m_hDevice, &allocInfo, GetAllocationCallbacks(), &mem);
3094  if(res < 0)
3095  {
3096  // 4. Try quarter the size.
3097  allocInfo.allocationSize /= 2;
3098  if(allocInfo.allocationSize >= vkMemReq.size)
3099  {
3100  res = vkAllocateMemory(m_hDevice, &allocInfo, GetAllocationCallbacks(), &mem);
3101  }
3102  }
3103  }
3104  }
3105  if(res < 0)
3106  {
3107  // 5. Try OwnAlloc.
3108  res = AllocateOwnMemory(vkMemReq.size, suballocType, memTypeIndex, pMemory);
3109  if(res == VK_SUCCESS)
3110  {
3111  // Succeeded: AllocateOwnMemory function already filld pMemory, nothing more to do here.
3112  VMA_DEBUG_LOG(" Allocated as OwnMemory");
3113  return VK_SUCCESS;
3114  }
3115  else
3116  {
3117  // Everything failed: Return error code.
3118  VMA_DEBUG_LOG(" vkAllocateMemory FAILED");
3119  return res;
3120  }
3121  }
3122 
3123  // New VkDeviceMemory successfully created. Create new Allocation for it.
3124  VmaAllocation* const pAlloc = vma_new(this, VmaAllocation)(this);
3125  pAlloc->Init(mem, allocInfo.allocationSize);
3126 
3127  allocationVector->m_Allocations.push_back(pAlloc);
3128 
3129  // Allocate from pAlloc. Because it is empty, allocRequest can be trivially filled.
3130  VmaAllocationRequest allocRequest = {};
3131  allocRequest.freeSuballocationItem = pAlloc->m_Suballocations.begin();
3132  allocRequest.offset = 0;
3133  pAlloc->Alloc(allocRequest, suballocType, vkMemReq.size);
3134  pMemory->memory = mem;
3135  pMemory->offset = allocRequest.offset;
3136  VMA_HEAVY_ASSERT(pAlloc->Validate());
3137  VMA_DEBUG_LOG(" Created new allocation Size=%llu", allocInfo.allocationSize);
3138  return VK_SUCCESS;
3139  }
3140  }
3141 }
3142 
3143 VkResult VmaAllocator_T::AllocateOwnMemory(
3144  VkDeviceSize size,
3145  VmaSuballocationType suballocType,
3146  uint32_t memTypeIndex,
3147  VkMappedMemoryRange* pMemory)
3148 {
3149  VkMemoryAllocateInfo allocInfo = { VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO };
3150  allocInfo.memoryTypeIndex = memTypeIndex;
3151  allocInfo.allocationSize = size;
3152 
3153  // Allocate VkDeviceMemory.
3154  VmaOwnAllocation ownAlloc = {};
3155  ownAlloc.m_Size = size;
3156  ownAlloc.m_Type = suballocType;
3157  VkResult res = vkAllocateMemory(m_hDevice, &allocInfo, GetAllocationCallbacks(), &ownAlloc.m_hMemory);
3158  if(res < 0)
3159  {
3160  VMA_DEBUG_LOG(" vkAllocateMemory FAILED");
3161  return res;
3162  }
3163 
3164  // Register it in m_pOwnAllocations.
3165  VmaMutexLock lock(m_OwnAllocationsMutex[memTypeIndex]);
3166  OwnAllocationVectorType* ownAllocations = m_pOwnAllocations[memTypeIndex];
3167  VMA_ASSERT(ownAllocations);
3168  VmaOwnAllocation* const pOwnAllocationsBeg = ownAllocations->data();
3169  VmaOwnAllocation* const pOwnAllocationsEnd = pOwnAllocationsBeg + ownAllocations->size();
3170  const size_t indexToInsert = VmaBinaryFindFirstNotLess(
3171  pOwnAllocationsBeg,
3172  pOwnAllocationsEnd,
3173  ownAlloc,
3174  VmaOwnAllocationMemoryHandleLess()) - pOwnAllocationsBeg;
3175  VectorInsert(*ownAllocations, indexToInsert, ownAlloc);
3176 
3177  // Return parameters of the allocation.
3178  pMemory->sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE;
3179  pMemory->pNext = VMA_NULL;
3180  pMemory->memory = ownAlloc.m_hMemory;
3181  pMemory->offset = 0;
3182  pMemory->size = size;
3183 
3184  VMA_DEBUG_LOG(" Allocated OwnMemory MemoryTypeIndex=#%u", memTypeIndex);
3185 
3186  return VK_SUCCESS;
3187 }
3188 
3189 VkResult VmaAllocator_T::AllocateMemory(
3190  const VkMemoryRequirements& vkMemReq,
3191  const VmaMemoryRequirements& vmaMemReq,
3192  VmaSuballocationType suballocType,
3193  VkMappedMemoryRange* pMemory,
3194  uint32_t* pMemoryTypeIndex)
3195 {
3196  if(vmaMemReq.ownMemory && vmaMemReq.neverAllocate)
3197  {
3198  VMA_ASSERT(0 && "Specifying VmaMemoryRequirements::ownMemory && VmaMemoryRequirements::neverAllocate makes no sense.");
3199  return VK_ERROR_OUT_OF_DEVICE_MEMORY;
3200  }
3201 
3202  // Bit mask of memory Vulkan types acceptable for this allocation.
3203  uint32_t memoryTypeBits = vkMemReq.memoryTypeBits;
3204  uint32_t memTypeIndex = UINT32_MAX;
3205  VkResult res = vmaFindMemoryTypeIndex(this, memoryTypeBits, &vmaMemReq, &memTypeIndex);
3206  if(res == VK_SUCCESS)
3207  {
3208  res = AllocateMemoryOfType(vkMemReq, vmaMemReq, memTypeIndex, suballocType, pMemory);
3209  // Succeeded on first try.
3210  if(res == VK_SUCCESS)
3211  {
3212  if(pMemoryTypeIndex != VMA_NULL)
3213  *pMemoryTypeIndex = memTypeIndex;
3214  return res;
3215  }
3216  // Allocation from this memory type failed. Try other compatible memory types.
3217  else
3218  {
3219  for(;;)
3220  {
3221  // Remove old memTypeIndex from list of possibilities.
3222  memoryTypeBits &= ~(1u << memTypeIndex);
3223  // Find alternative memTypeIndex.
3224  res = vmaFindMemoryTypeIndex(this, memoryTypeBits, &vmaMemReq, &memTypeIndex);
3225  if(res == VK_SUCCESS)
3226  {
3227  res = AllocateMemoryOfType(vkMemReq, vmaMemReq, memTypeIndex, suballocType, pMemory);
3228  // Allocation from this alternative memory type succeeded.
3229  if(res == VK_SUCCESS)
3230  {
3231  if(pMemoryTypeIndex != VMA_NULL)
3232  *pMemoryTypeIndex = memTypeIndex;
3233  return res;
3234  }
3235  // else: Allocation from this memory type failed. Try next one - next loop iteration.
3236  }
3237  // No other matching memory type index could be found.
3238  else
3239  // Not returning res, which is VK_ERROR_FEATURE_NOT_PRESENT, because we already failed to allocate once.
3240  return VK_ERROR_OUT_OF_DEVICE_MEMORY;
3241  }
3242  }
3243  }
3244  // Can't find any single memory type maching requirements. res is VK_ERROR_FEATURE_NOT_PRESENT.
3245  else
3246  return res;
3247 }
3248 
3249 void VmaAllocator_T::FreeMemory(const VkMappedMemoryRange* pMemory)
3250 {
3251  uint32_t memTypeIndex = 0;
3252  bool found = false;
3253  VmaAllocation* allocationToDelete = VMA_NULL;
3254  // Check all memory types because we don't know which one does pMemory come from.
3255  for(; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex)
3256  {
3257  VmaMutexLock lock(m_AllocationsMutex[memTypeIndex]);
3258  VmaAllocationVector* const pAllocationVector = m_pAllocations[memTypeIndex];
3259  VMA_ASSERT(pAllocationVector);
3260  // Try to free pMemory from pAllocationVector.
3261  const size_t allocIndex = pAllocationVector->Free(pMemory);
3262  if(allocIndex != (size_t)-1)
3263  {
3264  VMA_DEBUG_LOG(" Freed from MemoryTypeIndex=%u", memTypeIndex);
3265  found = true;
3266  VmaAllocation* const pAlloc = pAllocationVector->m_Allocations[allocIndex];
3267  VMA_ASSERT(pAlloc);
3268  // pAlloc became empty after this deallocation.
3269  if(pAlloc->IsEmpty())
3270  {
3271  // Already has empty Allocation. We don't want to have two, so delete this one.
3272  if(m_HasEmptyAllocation[memTypeIndex])
3273  {
3274  allocationToDelete = pAlloc;
3275  VectorRemove(pAllocationVector->m_Allocations, allocIndex);
3276  break;
3277  }
3278  // We now have first empty Allocation.
3279  else
3280  m_HasEmptyAllocation[memTypeIndex] = true;
3281  }
3282  // Must be called after allocIndex is used, because later it may become invalid!
3283  pAllocationVector->IncrementallySortAllocations();
3284  break;
3285  }
3286  }
3287  if(found)
3288  {
3289  // Destruction of a free Allocation. Deferred until this point, outside of mutex
3290  // lock, for performance reason.
3291  if(allocationToDelete != VMA_NULL)
3292  {
3293  VMA_DEBUG_LOG(" Deleted empty allocation");
3294  allocationToDelete->Destroy(this);
3295  vma_delete(this, allocationToDelete);
3296  }
3297  return;
3298  }
3299 
3300  // pMemory not found in allocations. Try free it as Own Memory.
3301  if(FreeOwnMemory(pMemory))
3302  return;
3303 
3304  // pMemory not found as Own Memory either.
3305  VMA_ASSERT(0 && "Not found. Trying to free memory not allocated using this allocator (or some other bug).");
3306 }
3307 
3308 void VmaAllocator_T::CalculateStats(VmaStats* pStats)
3309 {
3310  InitStatInfo(pStats->total);
3311  for(size_t i = 0; i < VK_MAX_MEMORY_TYPES; ++i)
3312  InitStatInfo(pStats->memoryType[i]);
3313  for(size_t i = 0; i < VK_MAX_MEMORY_HEAPS; ++i)
3314  InitStatInfo(pStats->memoryHeap[i]);
3315 
3316  for(uint32_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex)
3317  {
3318  VmaMutexLock allocationsLock(m_AllocationsMutex[memTypeIndex]);
3319  const uint32_t heapIndex = m_MemProps.memoryTypes[memTypeIndex].heapIndex;
3320  const VmaAllocationVector* const allocVector = m_pAllocations[memTypeIndex];
3321  VMA_ASSERT(allocVector);
3322  allocVector->AddStats(pStats, memTypeIndex, heapIndex);
3323  }
3324 
3325  VmaPostprocessCalcStatInfo(pStats->total);
3326  for(size_t i = 0; i < GetMemoryTypeCount(); ++i)
3327  VmaPostprocessCalcStatInfo(pStats->memoryType[i]);
3328  for(size_t i = 0; i < GetMemoryHeapCount(); ++i)
3329  VmaPostprocessCalcStatInfo(pStats->memoryHeap[i]);
3330 }
3331 
3332 bool VmaAllocator_T::FreeOwnMemory(const VkMappedMemoryRange* pMemory)
3333 {
3334  VkDeviceMemory vkMemory = VK_NULL_HANDLE;
3335 
3336  // Check all memory types because we don't know which one does pMemory come from.
3337  for(uint32_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex)
3338  {
3339  VmaMutexLock lock(m_OwnAllocationsMutex[memTypeIndex]);
3340  OwnAllocationVectorType* const pOwnAllocations = m_pOwnAllocations[memTypeIndex];
3341  VMA_ASSERT(pOwnAllocations);
3342  VmaOwnAllocation* const pOwnAllocationsBeg = pOwnAllocations->data();
3343  VmaOwnAllocation* const pOwnAllocationsEnd = pOwnAllocationsBeg + pOwnAllocations->size();
3344  VmaOwnAllocation* const pOwnAllocationIt = VmaBinaryFindFirstNotLess(
3345  pOwnAllocationsBeg,
3346  pOwnAllocationsEnd,
3347  pMemory->memory,
3348  VmaOwnAllocationMemoryHandleLess());
3349  if((pOwnAllocationIt != pOwnAllocationsEnd) &&
3350  (pOwnAllocationIt->m_hMemory == pMemory->memory))
3351  {
3352  VMA_ASSERT(pMemory->size == pOwnAllocationIt->m_Size && pMemory->offset == 0);
3353  vkMemory = pOwnAllocationIt->m_hMemory;
3354  const size_t ownAllocationIndex = pOwnAllocationIt - pOwnAllocationsBeg;
3355  VectorRemove(*pOwnAllocations, ownAllocationIndex);
3356  VMA_DEBUG_LOG(" Freed OwnMemory MemoryTypeIndex=%u", memTypeIndex);
3357  break;
3358  }
3359  }
3360 
3361  // Found. Free VkDeviceMemory deferred until this point, outside of mutex lock,
3362  // for performance reason.
3363  if(vkMemory != VK_NULL_HANDLE)
3364  {
3365  vkFreeMemory(m_hDevice, vkMemory, GetAllocationCallbacks());
3366  return true;
3367  }
3368  else
3369  return false;
3370 }
3371 
3372 #if VMA_STATS_STRING_ENABLED
3373 
3374 void VmaAllocator_T::PrintDetailedMap(VmaStringBuilder& sb)
3375 {
3376  bool ownAllocationsStarted = false;
3377  for(size_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex)
3378  {
3379  VmaMutexLock ownAllocationsLock(m_OwnAllocationsMutex[memTypeIndex]);
3380  OwnAllocationVectorType* const pOwnAllocVector = m_pOwnAllocations[memTypeIndex];
3381  VMA_ASSERT(pOwnAllocVector);
3382  if(pOwnAllocVector->empty() == false)
3383  {
3384  if(ownAllocationsStarted)
3385  sb.Add(",\n\t\"Type ");
3386  else
3387  {
3388  sb.Add(",\n\"OwnAllocations\": {\n\t\"Type ");
3389  ownAllocationsStarted = true;
3390  }
3391  sb.AddNumber(memTypeIndex);
3392  sb.Add("\": [");
3393 
3394  for(size_t i = 0; i < pOwnAllocVector->size(); ++i)
3395  {
3396  const VmaOwnAllocation& ownAlloc = (*pOwnAllocVector)[i];
3397  if(i > 0)
3398  sb.Add(",\n\t\t{ \"Size\": ");
3399  else
3400  sb.Add("\n\t\t{ \"Size\": ");
3401  sb.AddNumber(ownAlloc.m_Size);
3402  sb.Add(", \"Type\": ");
3403  sb.AddString(VMA_SUBALLOCATION_TYPE_NAMES[ownAlloc.m_Type]);
3404  sb.Add(" }");
3405  }
3406 
3407  sb.Add("\n\t]");
3408  }
3409  }
3410  if(ownAllocationsStarted)
3411  sb.Add("\n}");
3412 
3413  {
3414  bool allocationsStarted = false;
3415  for(size_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex)
3416  {
3417  VmaMutexLock globalAllocationsLock(m_AllocationsMutex[memTypeIndex]);
3418  if(m_pAllocations[memTypeIndex]->IsEmpty() == false)
3419  {
3420  if(allocationsStarted)
3421  sb.Add(",\n\t\"Type ");
3422  else
3423  {
3424  sb.Add(",\n\"Allocations\": {\n\t\"Type ");
3425  allocationsStarted = true;
3426  }
3427  sb.AddNumber(memTypeIndex);
3428  sb.Add("\": [");
3429 
3430  m_pAllocations[memTypeIndex]->PrintDetailedMap(sb);
3431 
3432  sb.Add("\n\t]");
3433  }
3434  }
3435  if(allocationsStarted)
3436  sb.Add("\n}");
3437  }
3438 }
3439 
3440 #endif // #if VMA_STATS_STRING_ENABLED
3441 
3442 static VkResult AllocateMemoryForImage(
3443  VmaAllocator allocator,
3444  VkImage image,
3445  const VmaMemoryRequirements* pMemoryRequirements,
3446  VmaSuballocationType suballocType,
3447  VkMappedMemoryRange* pMemory,
3448  uint32_t* pMemoryTypeIndex)
3449 {
3450  VMA_ASSERT(allocator && image != VK_NULL_HANDLE && pMemoryRequirements && pMemory);
3451 
3452  VkMemoryRequirements vkMemReq = {};
3453  vkGetImageMemoryRequirements(allocator->m_hDevice, image, &vkMemReq);
3454 
3455  return allocator->AllocateMemory(
3456  vkMemReq,
3457  *pMemoryRequirements,
3458  suballocType,
3459  pMemory,
3460  pMemoryTypeIndex);
3461 }
3462 
3464 // Public interface
3465 
3466 VkResult vmaCreateAllocator(
3467  const VmaAllocatorCreateInfo* pCreateInfo,
3468  VmaAllocator* pAllocator)
3469 {
3470  VMA_ASSERT(pCreateInfo && pAllocator);
3471  VMA_DEBUG_LOG("vmaCreateAllocator");
3472  *pAllocator = vma_new(pCreateInfo->pAllocationCallbacks, VmaAllocator_T)(pCreateInfo);
3473  return VK_SUCCESS;
3474 }
3475 
3476 void vmaDestroyAllocator(
3477  VmaAllocator allocator)
3478 {
3479  if(allocator != VK_NULL_HANDLE)
3480  {
3481  VMA_DEBUG_LOG("vmaDestroyAllocator");
3482  VkAllocationCallbacks allocationCallbacks = allocator->m_AllocationCallbacks;
3483  vma_delete(&allocationCallbacks, allocator);
3484  }
3485 }
3486 
3487 void vmaGetPhysicalDeviceProperties(
3488  VmaAllocator allocator,
3489  const VkPhysicalDeviceProperties **ppPhysicalDeviceProperties)
3490 {
3491  VMA_ASSERT(allocator && ppPhysicalDeviceProperties);
3492  *ppPhysicalDeviceProperties = &allocator->m_PhysicalDeviceProperties;
3493 }
3494 
3495 void vmaGetMemoryProperties(
3496  VmaAllocator allocator,
3497  const VkPhysicalDeviceMemoryProperties** ppPhysicalDeviceMemoryProperties)
3498 {
3499  VMA_ASSERT(allocator && ppPhysicalDeviceMemoryProperties);
3500  *ppPhysicalDeviceMemoryProperties = &allocator->m_MemProps;
3501 }
3502 
3503 void vmaGetMemoryTypeProperties(
3504  VmaAllocator allocator,
3505  uint32_t memoryTypeIndex,
3506  VkMemoryPropertyFlags* pFlags)
3507 {
3508  VMA_ASSERT(allocator && pFlags);
3509  VMA_ASSERT(memoryTypeIndex < allocator->GetMemoryTypeCount());
3510  *pFlags = allocator->m_MemProps.memoryTypes[memoryTypeIndex].propertyFlags;
3511 }
3512 
3513 void vmaCalculateStats(
3514  VmaAllocator allocator,
3515  VmaStats* pStats)
3516 {
3517  VMA_ASSERT(allocator && pStats);
3518  VMA_DEBUG_GLOBAL_MUTEX_LOCK
3519  allocator->CalculateStats(pStats);
3520 }
3521 
3522 #if VMA_STATS_STRING_ENABLED
3523 
3524 void vmaBuildStatsString(
3525  VmaAllocator allocator,
3526  char** ppStatsString,
3527  VkBool32 detailedMap)
3528 {
3529  VMA_ASSERT(allocator && ppStatsString);
3530  VMA_DEBUG_GLOBAL_MUTEX_LOCK
3531 
3532  VmaStringBuilder sb(allocator);
3533  {
3534  VmaStats stats;
3535  allocator->CalculateStats(&stats);
3536 
3537  sb.Add("{\n\"Total\": ");
3538  VmaPrintStatInfo(sb, stats.total);
3539 
3540  for(uint32_t heapIndex = 0; heapIndex < allocator->GetMemoryHeapCount(); ++heapIndex)
3541  {
3542  sb.Add(",\n\"Heap ");
3543  sb.AddNumber(heapIndex);
3544  sb.Add("\": {\n\t\"Size\": ");
3545  sb.AddNumber(allocator->m_MemProps.memoryHeaps[heapIndex].size);
3546  sb.Add(",\n\t\"Flags\": ");
3547  if((allocator->m_MemProps.memoryHeaps[heapIndex].flags & VK_MEMORY_HEAP_DEVICE_LOCAL_BIT) != 0)
3548  sb.AddString("DEVICE_LOCAL");
3549  else
3550  sb.AddString("");
3551  if(stats.memoryHeap[heapIndex].AllocationCount > 0)
3552  {
3553  sb.Add(",\n\t\"Stats:\": ");
3554  VmaPrintStatInfo(sb, stats.memoryHeap[heapIndex]);
3555  }
3556 
3557  for(uint32_t typeIndex = 0; typeIndex < allocator->GetMemoryTypeCount(); ++typeIndex)
3558  {
3559  if(allocator->m_MemProps.memoryTypes[typeIndex].heapIndex == heapIndex)
3560  {
3561  sb.Add(",\n\t\"Type ");
3562  sb.AddNumber(typeIndex);
3563  sb.Add("\": {\n\t\t\"Flags\": \"");
3564  VkMemoryPropertyFlags flags = allocator->m_MemProps.memoryTypes[typeIndex].propertyFlags;
3565  if((flags & VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT) != 0)
3566  sb.Add(" DEVICE_LOCAL");
3567  if((flags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) != 0)
3568  sb.Add(" HOST_VISIBLE");
3569  if((flags & VK_MEMORY_PROPERTY_HOST_COHERENT_BIT) != 0)
3570  sb.Add(" HOST_COHERENT");
3571  if((flags & VK_MEMORY_PROPERTY_HOST_CACHED_BIT) != 0)
3572  sb.Add(" HOST_CACHED");
3573  if((flags & VK_MEMORY_PROPERTY_LAZILY_ALLOCATED_BIT) != 0)
3574  sb.Add(" LAZILY_ALLOCATED");
3575  sb.Add("\"");
3576  if(stats.memoryType[typeIndex].AllocationCount > 0)
3577  {
3578  sb.Add(",\n\t\t\"Stats\": ");
3579  VmaPrintStatInfo(sb, stats.memoryType[typeIndex]);
3580  }
3581  sb.Add("\n\t}");
3582  }
3583  }
3584  sb.Add("\n}");
3585  }
3586  if(detailedMap == VK_TRUE)
3587  allocator->PrintDetailedMap(sb);
3588  sb.Add("\n}\n");
3589  }
3590 
3591  const size_t len = sb.GetLength();
3592  char* const pChars = vma_new_array(allocator, char, len + 1);
3593  if(len > 0)
3594  memcpy(pChars, sb.GetData(), len);
3595  pChars[len] = '\0';
3596  *ppStatsString = pChars;
3597 }
3598 
3599 void vmaFreeStatsString(
3600  VmaAllocator allocator,
3601  char* pStatsString)
3602 {
3603  if(pStatsString != VMA_NULL)
3604  {
3605  VMA_ASSERT(allocator);
3606  size_t len = strlen(pStatsString);
3607  vma_delete_array(allocator, pStatsString, len + 1);
3608  }
3609 }
3610 
3611 #endif // #if VMA_STATS_STRING_ENABLED
3612 
3615 VkResult vmaFindMemoryTypeIndex(
3616  VmaAllocator allocator,
3617  uint32_t memoryTypeBits,
3618  const VmaMemoryRequirements* pMemoryRequirements,
3619  uint32_t* pMemoryTypeIndex)
3620 {
3621  VMA_ASSERT(allocator != VK_NULL_HANDLE);
3622  VMA_ASSERT(pMemoryRequirements != VMA_NULL);
3623  VMA_ASSERT(pMemoryTypeIndex != VMA_NULL);
3624 
3625  uint32_t requiredFlags = pMemoryRequirements->requiredFlags;
3626  uint32_t preferredFlags = pMemoryRequirements->preferredFlags;
3627  if(preferredFlags == 0)
3628  preferredFlags = requiredFlags;
3629  // preferredFlags, if not 0, must be subset of requiredFlags.
3630  VMA_ASSERT((requiredFlags & ~preferredFlags) == 0);
3631 
3632  // Convert usage to requiredFlags and preferredFlags.
3633  switch(pMemoryRequirements->usage)
3634  {
3635  case VMA_MEMORY_USAGE_UNKNOWN:
3636  break;
3637  case VMA_MEMORY_USAGE_GPU_ONLY:
3638  preferredFlags |= VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
3639  break;
3640  case VMA_MEMORY_USAGE_CPU_ONLY:
3641  requiredFlags |= VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT;
3642  break;
3643  case VMA_MEMORY_USAGE_CPU_TO_GPU:
3644  requiredFlags |= VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT;
3645  preferredFlags |= VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
3646  break;
3647  case VMA_MEMORY_USAGE_GPU_TO_CPU:
3648  requiredFlags |= VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT;
3649  preferredFlags |= VK_MEMORY_PROPERTY_HOST_COHERENT_BIT | VK_MEMORY_PROPERTY_HOST_CACHED_BIT;
3650  break;
3651  default:
3652  break;
3653  }
3654 
3655  *pMemoryTypeIndex = UINT32_MAX;
3656  uint32_t minCost = UINT32_MAX;
3657  for(uint32_t memTypeIndex = 0, memTypeBit = 1;
3658  memTypeIndex < allocator->GetMemoryTypeCount();
3659  ++memTypeIndex, memTypeBit <<= 1)
3660  {
3661  // This memory type is acceptable according to memoryTypeBits bitmask.
3662  if((memTypeBit & memoryTypeBits) != 0)
3663  {
3664  const VkMemoryPropertyFlags currFlags =
3665  allocator->m_MemProps.memoryTypes[memTypeIndex].propertyFlags;
3666  // This memory type contains requiredFlags.
3667  if((requiredFlags & ~currFlags) == 0)
3668  {
3669  // Calculate cost as number of bits from preferredFlags not present in this memory type.
3670  uint32_t currCost = CountBitsSet(preferredFlags & ~currFlags);
3671  // Remember memory type with lowest cost.
3672  if(currCost < minCost)
3673  {
3674  *pMemoryTypeIndex = memTypeIndex;
3675  if(currCost == 0)
3676  return VK_SUCCESS;
3677  minCost = currCost;
3678  }
3679  }
3680  }
3681  }
3682  return (*pMemoryTypeIndex != UINT32_MAX) ? VK_SUCCESS : VK_ERROR_FEATURE_NOT_PRESENT;
3683 }
3684 
3685 VkResult vmaAllocateMemory(
3686  VmaAllocator allocator,
3687  const VkMemoryRequirements* pVkMemoryRequirements,
3688  const VmaMemoryRequirements* pVmaMemoryRequirements,
3689  VkMappedMemoryRange* pMemory,
3690  uint32_t* pMemoryTypeIndex)
3691 {
3692  VMA_ASSERT(allocator && pVkMemoryRequirements && pVmaMemoryRequirements && pMemory);
3693 
3694  VMA_DEBUG_LOG("vmaAllocateMemory");
3695 
3696  VMA_DEBUG_GLOBAL_MUTEX_LOCK
3697 
3698  return allocator->AllocateMemory(
3699  *pVkMemoryRequirements,
3700  *pVmaMemoryRequirements,
3701  VMA_SUBALLOCATION_TYPE_UNKNOWN,
3702  pMemory,
3703  pMemoryTypeIndex);
3704 }
3705 
3706 VkResult vmaAllocateMemoryForBuffer(
3707  VmaAllocator allocator,
3708  VkBuffer buffer,
3709  const VmaMemoryRequirements* pMemoryRequirements,
3710  VkMappedMemoryRange* pMemory,
3711  uint32_t* pMemoryTypeIndex)
3712 {
3713  VMA_ASSERT(allocator && buffer != VK_NULL_HANDLE && pMemoryRequirements && pMemory);
3714 
3715  VMA_DEBUG_LOG("vmaAllocateMemoryForBuffer");
3716 
3717  VMA_DEBUG_GLOBAL_MUTEX_LOCK
3718 
3719  VkMemoryRequirements vkMemReq = {};
3720  vkGetBufferMemoryRequirements(allocator->m_hDevice, buffer, &vkMemReq);
3721 
3722  return allocator->AllocateMemory(
3723  vkMemReq,
3724  *pMemoryRequirements,
3725  VMA_SUBALLOCATION_TYPE_BUFFER,
3726  pMemory,
3727  pMemoryTypeIndex);
3728 }
3729 
3730 VkResult vmaAllocateMemoryForImage(
3731  VmaAllocator allocator,
3732  VkImage image,
3733  const VmaMemoryRequirements* pMemoryRequirements,
3734  VkMappedMemoryRange* pMemory,
3735  uint32_t* pMemoryTypeIndex)
3736 {
3737  VMA_ASSERT(allocator && image != VK_NULL_HANDLE && pMemoryRequirements);
3738 
3739  VMA_DEBUG_LOG("vmaAllocateMemoryForImage");
3740 
3741  VMA_DEBUG_GLOBAL_MUTEX_LOCK
3742 
3743  return AllocateMemoryForImage(
3744  allocator,
3745  image,
3746  pMemoryRequirements,
3747  VMA_SUBALLOCATION_TYPE_IMAGE_UNKNOWN,
3748  pMemory,
3749  pMemoryTypeIndex);
3750 }
3751 
3752 void vmaFreeMemory(
3753  VmaAllocator allocator,
3754  const VkMappedMemoryRange* pMemory)
3755 {
3756  VMA_ASSERT(allocator && pMemory);
3757 
3758  VMA_DEBUG_LOG("vmaFreeMemory");
3759 
3760  VMA_DEBUG_GLOBAL_MUTEX_LOCK
3761 
3762  allocator->FreeMemory(pMemory);
3763 }
3764 
3765 VkResult vmaMapMemory(
3766  VmaAllocator allocator,
3767  const VkMappedMemoryRange* pMemory,
3768  void** ppData)
3769 {
3770  VMA_ASSERT(allocator && pMemory && ppData);
3771 
3772  VMA_DEBUG_GLOBAL_MUTEX_LOCK
3773 
3774  return vkMapMemory(allocator->m_hDevice, pMemory->memory,
3775  pMemory->offset, pMemory->size, 0, ppData);
3776 }
3777 
3778 void vmaUnmapMemory(
3779  VmaAllocator allocator,
3780  const VkMappedMemoryRange* pMemory)
3781 {
3782  VMA_ASSERT(allocator && pMemory);
3783 
3784  VMA_DEBUG_GLOBAL_MUTEX_LOCK
3785 
3786  vkUnmapMemory(allocator->m_hDevice, pMemory->memory);
3787 }
3788 
3789 VkResult vmaCreateBuffer(
3790  VmaAllocator allocator,
3791  const VkBufferCreateInfo* pCreateInfo,
3792  const VmaMemoryRequirements* pMemoryRequirements,
3793  VkBuffer* pBuffer,
3794  VkMappedMemoryRange* pMemory,
3795  uint32_t* pMemoryTypeIndex)
3796 {
3797  VMA_ASSERT(allocator && pCreateInfo && pMemoryRequirements);
3798 
3799  VMA_DEBUG_LOG("vmaCreateBuffer");
3800 
3801  VMA_DEBUG_GLOBAL_MUTEX_LOCK
3802 
3803  // 1. Create VkBuffer.
3804  VkResult res = vkCreateBuffer(allocator->m_hDevice, pCreateInfo, allocator->GetAllocationCallbacks(), pBuffer);
3805  if(res >= 0)
3806  {
3807  VkMappedMemoryRange mem = {};
3808 
3809  // 2. vkGetBufferMemoryRequirements.
3810  VkMemoryRequirements vkMemReq = {};
3811  vkGetBufferMemoryRequirements(allocator->m_hDevice, *pBuffer, &vkMemReq);
3812 
3813  // 3. Allocate memory using allocator.
3814  res = allocator->AllocateMemory(
3815  vkMemReq,
3816  *pMemoryRequirements,
3817  VMA_SUBALLOCATION_TYPE_BUFFER,
3818  &mem,
3819  pMemoryTypeIndex);
3820  if(res >= 0)
3821  {
3822  if(pMemory != VMA_NULL)
3823  {
3824  *pMemory = mem;
3825  }
3826  // 3. Bind buffer with memory.
3827  res = vkBindBufferMemory(allocator->m_hDevice, *pBuffer, mem.memory, mem.offset);
3828  if(res >= 0)
3829  {
3830  // All steps succeeded.
3831  VmaMutexLock lock(allocator->m_BufferToMemoryMapMutex);
3832  allocator->m_BufferToMemoryMap.insert(VmaPair<VkBuffer, VkMappedMemoryRange>(*pBuffer, mem));
3833  return VK_SUCCESS;
3834  }
3835  allocator->FreeMemory(&mem);
3836  return res;
3837  }
3838  vkDestroyBuffer(allocator->m_hDevice, *pBuffer, allocator->GetAllocationCallbacks());
3839  return res;
3840  }
3841  return res;
3842 }
3843 
3844 void vmaDestroyBuffer(
3845  VmaAllocator allocator,
3846  VkBuffer buffer)
3847 {
3848  if(buffer != VK_NULL_HANDLE)
3849  {
3850  VMA_ASSERT(allocator);
3851 
3852  VMA_DEBUG_LOG("vmaDestroyBuffer");
3853 
3854  VMA_DEBUG_GLOBAL_MUTEX_LOCK
3855 
3856  VkMappedMemoryRange mem = {};
3857  {
3858  VmaMutexLock lock(allocator->m_BufferToMemoryMapMutex);
3859  VMA_MAP_TYPE(VkBuffer, VkMappedMemoryRange)::iterator it = allocator->m_BufferToMemoryMap.find(buffer);
3860  if(it == allocator->m_BufferToMemoryMap.end())
3861  {
3862  VMA_ASSERT(0 && "Trying to destroy buffer that was not created using vmaCreateBuffer or already freed.");
3863  return;
3864  }
3865  mem = it->second;
3866  allocator->m_BufferToMemoryMap.erase(it);
3867  }
3868 
3869  vkDestroyBuffer(allocator->m_hDevice, buffer, allocator->GetAllocationCallbacks());
3870 
3871  allocator->FreeMemory(&mem);
3872  }
3873 }
3874 
3875 VkResult vmaCreateImage(
3876  VmaAllocator allocator,
3877  const VkImageCreateInfo* pCreateInfo,
3878  const VmaMemoryRequirements* pMemoryRequirements,
3879  VkImage* pImage,
3880  VkMappedMemoryRange* pMemory,
3881  uint32_t* pMemoryTypeIndex)
3882 {
3883  VMA_ASSERT(allocator && pCreateInfo && pMemoryRequirements);
3884 
3885  VMA_DEBUG_LOG("vmaCreateImage");
3886 
3887  VMA_DEBUG_GLOBAL_MUTEX_LOCK
3888 
3889  // 1. Create VkImage.
3890  VkResult res = vkCreateImage(allocator->m_hDevice, pCreateInfo, allocator->GetAllocationCallbacks(), pImage);
3891  if(res >= 0)
3892  {
3893  VkMappedMemoryRange mem = {};
3894  VmaSuballocationType suballocType = pCreateInfo->tiling == VK_IMAGE_TILING_OPTIMAL ?
3895  VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL :
3896  VMA_SUBALLOCATION_TYPE_IMAGE_LINEAR;
3897 
3898  // 2. Allocate memory using allocator.
3899  res = AllocateMemoryForImage(allocator, *pImage, pMemoryRequirements, suballocType, &mem, pMemoryTypeIndex);
3900  if(res >= 0)
3901  {
3902  if(pMemory != VMA_NULL)
3903  *pMemory = mem;
3904  // 3. Bind image with memory.
3905  res = vkBindImageMemory(allocator->m_hDevice, *pImage, mem.memory, mem.offset);
3906  if(res >= 0)
3907  {
3908  // All steps succeeded.
3909  VmaMutexLock lock(allocator->m_ImageToMemoryMapMutex);
3910  allocator->m_ImageToMemoryMap.insert(VmaPair<VkImage, VkMappedMemoryRange>(*pImage, mem));
3911  return VK_SUCCESS;
3912  }
3913  allocator->FreeMemory(&mem);
3914  return res;
3915  }
3916  vkDestroyImage(allocator->m_hDevice, *pImage, allocator->GetAllocationCallbacks());
3917  return res;
3918  }
3919  return res;
3920 }
3921 
3922 void vmaDestroyImage(
3923  VmaAllocator allocator,
3924  VkImage image)
3925 {
3926  if(image != VK_NULL_HANDLE)
3927  {
3928  VMA_ASSERT(allocator);
3929 
3930  VMA_DEBUG_LOG("vmaDestroyImage");
3931 
3932  VMA_DEBUG_GLOBAL_MUTEX_LOCK
3933 
3934  VkMappedMemoryRange mem = {};
3935  {
3936  VmaMutexLock lock(allocator->m_ImageToMemoryMapMutex);
3937  VMA_MAP_TYPE(VkImage, VkMappedMemoryRange)::iterator it = allocator->m_ImageToMemoryMap.find(image);
3938  if(it == allocator->m_ImageToMemoryMap.end())
3939  {
3940  VMA_ASSERT(0 && "Trying to destroy buffer that was not created using vmaCreateBuffer or already freed.");
3941  return;
3942  }
3943  mem = it->second;
3944  allocator->m_ImageToMemoryMap.erase(it);
3945  }
3946 
3947  vkDestroyImage(allocator->m_hDevice, image, allocator->GetAllocationCallbacks());
3948 
3949  allocator->FreeMemory(&mem);
3950  }
3951 }
3952 
3953 #endif // #ifdef VMA_IMPLEMENTATION
3954 
3955 #endif // AMD_VULKAN_MEMORY_ALLOCATOR_H
VmaMemoryRequirements
struct VmaMemoryRequirements VmaMemoryRequirements
+Go to the documentation of this file.
1 //
2 // Copyright (c) 2017 Advanced Micro Devices, Inc. All rights reserved.
3 //
4 // Permission is hereby granted, free of charge, to any person obtaining a copy
5 // of this software and associated documentation files (the "Software"), to deal
6 // in the Software without restriction, including without limitation the rights
7 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 // copies of the Software, and to permit persons to whom the Software is
9 // furnished to do so, subject to the following conditions:
10 //
11 // The above copyright notice and this permission notice shall be included in
12 // all copies or substantial portions of the Software.
13 //
14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
20 // THE SOFTWARE.
21 //
22 
23 #ifndef AMD_VULKAN_MEMORY_ALLOCATOR_H
24 #define AMD_VULKAN_MEMORY_ALLOCATOR_H
25 
155 #include <vulkan/vulkan.h>
156 
158 
162 VK_DEFINE_HANDLE(VmaAllocator)
163 
164 typedef struct VmaAllocatorCreateInfo
166 {
168 
169  VkPhysicalDevice physicalDevice;
171 
172  VkDevice device;
174 
175  VkDeviceSize preferredLargeHeapBlockSize;
177 
178  VkDeviceSize preferredSmallHeapBlockSize;
180 
181  const VkAllocationCallbacks* pAllocationCallbacks;
182 } VmaAllocatorCreateInfo;
183 
185 VkResult vmaCreateAllocator(
186  const VmaAllocatorCreateInfo* pCreateInfo,
187  VmaAllocator* pAllocator);
188 
190 void vmaDestroyAllocator(
191  VmaAllocator allocator);
192 
197 void vmaGetPhysicalDeviceProperties(
198  VmaAllocator allocator,
199  const VkPhysicalDeviceProperties** ppPhysicalDeviceProperties);
200 
205 void vmaGetMemoryProperties(
206  VmaAllocator allocator,
207  const VkPhysicalDeviceMemoryProperties** ppPhysicalDeviceMemoryProperties);
208 
215 void vmaGetMemoryTypeProperties(
216  VmaAllocator allocator,
217  uint32_t memoryTypeIndex,
218  VkMemoryPropertyFlags* pFlags);
219 
220 typedef struct VmaStatInfo
221 {
222  uint32_t AllocationCount;
223  uint32_t SuballocationCount;
224  uint32_t UnusedRangeCount;
225  VkDeviceSize UsedBytes;
226  VkDeviceSize UnusedBytes;
227  VkDeviceSize SuballocationSizeMin, SuballocationSizeAvg, SuballocationSizeMax;
228  VkDeviceSize UnusedRangeSizeMin, UnusedRangeSizeAvg, UnusedRangeSizeMax;
229 } VmaStatInfo;
230 
232 struct VmaStats
233 {
234  VmaStatInfo memoryType[VK_MAX_MEMORY_TYPES];
235  VmaStatInfo memoryHeap[VK_MAX_MEMORY_HEAPS];
236  VmaStatInfo total;
237 };
238 
240 void vmaCalculateStats(
241  VmaAllocator allocator,
242  VmaStats* pStats);
243 
244 #ifndef VMA_STATS_STRING_ENABLED
245  #define VMA_STATS_STRING_ENABLED 1
246 #endif
247 
248 #if VMA_STATS_STRING_ENABLED
249 
251 
253 void vmaBuildStatsString(
254  VmaAllocator allocator,
255  char** ppStatsString,
256  VkBool32 detailedMap);
257 
258 void vmaFreeStatsString(
259  VmaAllocator allocator,
260  char* pStatsString);
261 
262 #endif // #if VMA_STATS_STRING_ENABLED
263 
266 
271 typedef enum VmaMemoryUsage
272 {
274  VMA_MEMORY_USAGE_UNKNOWN = 0,
276  VMA_MEMORY_USAGE_GPU_ONLY = 1,
278  VMA_MEMORY_USAGE_CPU_ONLY = 2,
280  VMA_MEMORY_USAGE_CPU_TO_GPU = 3,
282  VMA_MEMORY_USAGE_GPU_TO_CPU = 4,
283  VMA_MEMORY_USAGE_MAX_ENUM = 0x7FFFFFFF
284 } VmaMemoryUsage;
285 
286 typedef struct VmaMemoryRequirements
287 {
296  VkBool32 ownMemory;
301  VmaMemoryUsage usage;
305  VkMemoryPropertyFlags requiredFlags;
310  VkMemoryPropertyFlags preferredFlags;
317  VkBool32 neverAllocate;
318 } VmaMemoryRequirements;
319 
334 VkResult vmaFindMemoryTypeIndex(
335  VmaAllocator allocator,
336  uint32_t memoryTypeBits,
337  const VmaMemoryRequirements* pMemoryRequirements,
338  uint32_t* pMemoryTypeIndex);
339 
342 
359 VkResult vmaAllocateMemory(
360  VmaAllocator allocator,
361  const VkMemoryRequirements* pVkMemoryRequirements,
362  const VmaMemoryRequirements* pVmaMemoryRequirements,
363  VkMappedMemoryRange* pMemory,
364  uint32_t* pMemoryTypeIndex);
365 
373 VkResult vmaAllocateMemoryForBuffer(
374  VmaAllocator allocator,
375  VkBuffer buffer,
376  const VmaMemoryRequirements* pMemoryRequirements,
377  VkMappedMemoryRange* pMemory,
378  uint32_t* pMemoryTypeIndex);
379 
381 VkResult vmaAllocateMemoryForImage(
382  VmaAllocator allocator,
383  VkImage image,
384  const VmaMemoryRequirements* pMemoryRequirements,
385  VkMappedMemoryRange* pMemory,
386  uint32_t* pMemoryTypeIndex);
387 
389 void vmaFreeMemory(
390  VmaAllocator allocator,
391  const VkMappedMemoryRange* pMemory);
392 
398 VkResult vmaMapMemory(
399  VmaAllocator allocator,
400  const VkMappedMemoryRange* pMemory,
401  void** ppData);
402 
403 void vmaUnmapMemory(
404  VmaAllocator allocator,
405  const VkMappedMemoryRange* pMemory);
406 
409 
431 VkResult vmaCreateBuffer(
432  VmaAllocator allocator,
433  const VkBufferCreateInfo* pCreateInfo,
434  const VmaMemoryRequirements* pMemoryRequirements,
435  VkBuffer* pBuffer,
436  VkMappedMemoryRange* pMemory,
437  uint32_t* pMemoryTypeIndex);
438 
439 void vmaDestroyBuffer(
440  VmaAllocator allocator,
441  VkBuffer buffer);
442 
444 VkResult vmaCreateImage(
445  VmaAllocator allocator,
446  const VkImageCreateInfo* pCreateInfo,
447  const VmaMemoryRequirements* pMemoryRequirements,
448  VkImage* pImage,
449  VkMappedMemoryRange* pMemory,
450  uint32_t* pMemoryTypeIndex);
451 
452 void vmaDestroyImage(
453  VmaAllocator allocator,
454  VkImage image);
455 
458 #ifdef VMA_IMPLEMENTATION
459 
460 #include <cstdint>
461 #include <cstdlib>
462 
463 /*******************************************************************************
464 CONFIGURATION SECTION
465 
466 Define some of these macros before each #include of this header or change them
467 here if you need other then default behavior depending on your environment.
468 */
469 
470 // Define this macro to 1 to make the library use STL containers instead of its own implementation.
471 //#define VMA_USE_STL_CONTAINERS 1
472 
473 /* Set this macro to 1 to make the library including and using STL containers:
474 std::pair, std::vector, std::list, std::unordered_map.
475 
476 Set it to 0 or undefined to make the library using its own implementation of
477 the containers.
478 */
479 #if VMA_USE_STL_CONTAINERS
480  #define VMA_USE_STL_VECTOR 1
481  #define VMA_USE_STL_UNORDERED_MAP 1
482  #define VMA_USE_STL_LIST 1
483 #endif
484 
485 #if VMA_USE_STL_VECTOR
486  #include <vector>
487 #endif
488 
489 #if VMA_USE_STL_UNORDERED_MAP
490  #include <unordered_map>
491 #endif
492 
493 #if VMA_USE_STL_LIST
494  #include <list>
495 #endif
496 
497 /*
498 Following headers are used in this CONFIGURATION section only, so feel free to
499 remove them if not needed.
500 */
501 #include <cassert> // for assert
502 #include <algorithm> // for min, max
503 #include <mutex> // for std::mutex
504 
505 #if !defined(_WIN32)
506  #include <malloc.h> // for aligned_alloc()
507 #endif
508 
509 // Normal assert to check for programmer's errors, especially in Debug configuration.
510 #ifndef VMA_ASSERT
511  #ifdef _DEBUG
512  #define VMA_ASSERT(expr) assert(expr)
513  #else
514  #define VMA_ASSERT(expr)
515  #endif
516 #endif
517 
518 // Assert that will be called very often, like inside data structures e.g. operator[].
519 // Making it non-empty can make program slow.
520 #ifndef VMA_HEAVY_ASSERT
521  #ifdef _DEBUG
522  #define VMA_HEAVY_ASSERT(expr) //VMA_ASSERT(expr)
523  #else
524  #define VMA_HEAVY_ASSERT(expr)
525  #endif
526 #endif
527 
528 #ifndef VMA_NULL
529  // Value used as null pointer. Define it to e.g.: nullptr, NULL, 0, (void*)0.
530  #define VMA_NULL nullptr
531 #endif
532 
533 #ifndef VMA_ALIGN_OF
534  #define VMA_ALIGN_OF(type) (__alignof(type))
535 #endif
536 
537 #ifndef VMA_SYSTEM_ALIGNED_MALLOC
538  #if defined(_WIN32)
539  #define VMA_SYSTEM_ALIGNED_MALLOC(size, alignment) (_aligned_malloc((size), (alignment)))
540  #else
541  #define VMA_SYSTEM_ALIGNED_MALLOC(size, alignment) (aligned_alloc((alignment), (size) ))
542  #endif
543 #endif
544 
545 #ifndef VMA_SYSTEM_FREE
546  #if defined(_WIN32)
547  #define VMA_SYSTEM_FREE(ptr) _aligned_free(ptr)
548  #else
549  #define VMA_SYSTEM_FREE(ptr) free(ptr)
550  #endif
551 #endif
552 
553 #ifndef VMA_MIN
554  #define VMA_MIN(v1, v2) (std::min((v1), (v2)))
555 #endif
556 
557 #ifndef VMA_MAX
558  #define VMA_MAX(v1, v2) (std::max((v1), (v2)))
559 #endif
560 
561 #ifndef VMA_SWAP
562  #define VMA_SWAP(v1, v2) std::swap((v1), (v2))
563 #endif
564 
565 #ifndef VMA_DEBUG_LOG
566  #define VMA_DEBUG_LOG(format, ...)
567  /*
568  #define VMA_DEBUG_LOG(format, ...) do { \
569  printf(format, __VA_ARGS__); \
570  printf("\n"); \
571  } while(false)
572  */
573 #endif
574 
575 // Define this macro to 1 to enable functions: vmaBuildStatsString, vmaFreeStatsString.
576 #if VMA_STATS_STRING_ENABLED
577  static inline void VmaUint32ToStr(char* outStr, size_t strLen, uint32_t num)
578  {
579  _ultoa_s(num, outStr, strLen, 10);
580  }
581  static inline void VmaUint64ToStr(char* outStr, size_t strLen, uint64_t num)
582  {
583  _ui64toa_s(num, outStr, strLen, 10);
584  }
585 #endif
586 
587 #ifndef VMA_MUTEX
588  class VmaMutex
589  {
590  public:
591  VmaMutex() { }
592  ~VmaMutex() { }
593  void Lock() { m_Mutex.lock(); }
594  void Unlock() { m_Mutex.unlock(); }
595  private:
596  std::mutex m_Mutex;
597  };
598  #define VMA_MUTEX VmaMutex
599 #endif
600 
601 #ifndef VMA_BEST_FIT
602 
614  #define VMA_BEST_FIT (1)
615 #endif
616 
617 #ifndef VMA_DEBUG_ALWAYS_OWN_MEMORY
618 
622  #define VMA_DEBUG_ALWAYS_OWN_MEMORY (0)
623 #endif
624 
625 #ifndef VMA_DEBUG_ALIGNMENT
626 
630  #define VMA_DEBUG_ALIGNMENT (1)
631 #endif
632 
633 #ifndef VMA_DEBUG_MARGIN
634 
638  #define VMA_DEBUG_MARGIN (0)
639 #endif
640 
641 #ifndef VMA_DEBUG_GLOBAL_MUTEX
642 
646  #define VMA_DEBUG_GLOBAL_MUTEX (0)
647 #endif
648 
649 #ifndef VMA_DEBUG_MIN_BUFFER_IMAGE_GRANULARITY
650 
654  #define VMA_DEBUG_MIN_BUFFER_IMAGE_GRANULARITY (1)
655 #endif
656 
657 #ifndef VMA_SMALL_HEAP_MAX_SIZE
658  #define VMA_SMALL_HEAP_MAX_SIZE (512 * 1024 * 1024)
660 #endif
661 
662 #ifndef VMA_DEFAULT_LARGE_HEAP_BLOCK_SIZE
663  #define VMA_DEFAULT_LARGE_HEAP_BLOCK_SIZE (256 * 1024 * 1024)
665 #endif
666 
667 #ifndef VMA_DEFAULT_SMALL_HEAP_BLOCK_SIZE
668  #define VMA_DEFAULT_SMALL_HEAP_BLOCK_SIZE (64 * 1024 * 1024)
670 #endif
671 
672 /*******************************************************************************
673 END OF CONFIGURATION
674 */
675 
676 static VkAllocationCallbacks VmaEmptyAllocationCallbacks = {
677  VMA_NULL, VMA_NULL, VMA_NULL, VMA_NULL, VMA_NULL, VMA_NULL };
678 
679 // Returns number of bits set to 1 in (v).
680 static inline uint32_t CountBitsSet(uint32_t v)
681 {
682  uint32_t c = v - ((v >> 1) & 0x55555555);
683  c = ((c >> 2) & 0x33333333) + (c & 0x33333333);
684  c = ((c >> 4) + c) & 0x0F0F0F0F;
685  c = ((c >> 8) + c) & 0x00FF00FF;
686  c = ((c >> 16) + c) & 0x0000FFFF;
687  return c;
688 }
689 
690 // Aligns given value up to nearest multiply of align value. For example: VmaAlignUp(11, 8) = 16.
691 // Use types like uint32_t, uint64_t as T.
692 template <typename T>
693 static inline T VmaAlignUp(T val, T align)
694 {
695  return (val + align - 1) / align * align;
696 }
697 
698 // Division with mathematical rounding to nearest number.
699 template <typename T>
700 inline T VmaRoundDiv(T x, T y)
701 {
702  return (x + (y / (T)2)) / y;
703 }
704 /*
705 Returns true if two memory blocks occupy overlapping pages.
706 ResourceA must be in less memory offset than ResourceB.
707 
708 Algorithm is based on "Vulkan 1.0.39 - A Specification (with all registered Vulkan extensions)"
709 chapter 11.6 "Resource Memory Association", paragraph "Buffer-Image Granularity".
710 */
711 static inline bool VmaBlocksOnSamePage(
712  VkDeviceSize resourceAOffset,
713  VkDeviceSize resourceASize,
714  VkDeviceSize resourceBOffset,
715  VkDeviceSize pageSize)
716 {
717  VMA_ASSERT(resourceAOffset + resourceASize <= resourceBOffset && resourceASize > 0 && pageSize > 0);
718  VkDeviceSize resourceAEnd = resourceAOffset + resourceASize - 1;
719  VkDeviceSize resourceAEndPage = resourceAEnd & ~(pageSize - 1);
720  VkDeviceSize resourceBStart = resourceBOffset;
721  VkDeviceSize resourceBStartPage = resourceBStart & ~(pageSize - 1);
722  return resourceAEndPage == resourceBStartPage;
723 }
724 
725 enum VmaSuballocationType
726 {
727  VMA_SUBALLOCATION_TYPE_FREE = 0,
728  VMA_SUBALLOCATION_TYPE_UNKNOWN = 1,
729  VMA_SUBALLOCATION_TYPE_BUFFER = 2,
730  VMA_SUBALLOCATION_TYPE_IMAGE_UNKNOWN = 3,
731  VMA_SUBALLOCATION_TYPE_IMAGE_LINEAR = 4,
732  VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL = 5,
733  VMA_SUBALLOCATION_TYPE_MAX_ENUM = 0x7FFFFFFF
734 };
735 
736 /*
737 Returns true if given suballocation types could conflict and must respect
738 VkPhysicalDeviceLimits::bufferImageGranularity. They conflict if one is buffer
739 or linear image and another one is optimal image. If type is unknown, behave
740 conservatively.
741 */
742 static inline bool VmaIsBufferImageGranularityConflict(
743  VmaSuballocationType suballocType1,
744  VmaSuballocationType suballocType2)
745 {
746  if(suballocType1 > suballocType2)
747  VMA_SWAP(suballocType1, suballocType2);
748 
749  switch(suballocType1)
750  {
751  case VMA_SUBALLOCATION_TYPE_FREE:
752  return false;
753  case VMA_SUBALLOCATION_TYPE_UNKNOWN:
754  return true;
755  case VMA_SUBALLOCATION_TYPE_BUFFER:
756  return
757  suballocType2 == VMA_SUBALLOCATION_TYPE_IMAGE_UNKNOWN ||
758  suballocType2 == VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL;
759  case VMA_SUBALLOCATION_TYPE_IMAGE_UNKNOWN:
760  return
761  suballocType2 == VMA_SUBALLOCATION_TYPE_IMAGE_UNKNOWN ||
762  suballocType2 == VMA_SUBALLOCATION_TYPE_IMAGE_LINEAR ||
763  suballocType2 == VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL;
764  case VMA_SUBALLOCATION_TYPE_IMAGE_LINEAR:
765  return
766  suballocType2 == VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL;
767  case VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL:
768  return false;
769  default:
770  VMA_ASSERT(0);
771  return true;
772  }
773 }
774 
775 // Helper RAII class to lock a mutex in constructor and unlock it in destructor (at the end of scope).
776 struct VmaMutexLock
777 {
778 public:
779  VmaMutexLock(VMA_MUTEX& mutex) : m_Mutex(mutex) { mutex.Lock(); }
780  ~VmaMutexLock() { m_Mutex.Unlock(); }
781 
782 private:
783  VMA_MUTEX& m_Mutex;
784 };
785 
786 #if VMA_DEBUG_GLOBAL_MUTEX
787  static VMA_MUTEX gDebugGlobalMutex;
788  #define VMA_DEBUG_GLOBAL_MUTEX_LOCK VmaMutexLock debugGlobalMutexLock(gDebugGlobalMutex);
789 #else
790  #define VMA_DEBUG_GLOBAL_MUTEX_LOCK
791 #endif
792 
793 // Minimum size of a free suballocation to register it in the free suballocation collection.
794 static const VkDeviceSize VMA_MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER = 16;
795 
796 /*
797 Performs binary search and returns iterator to first element that is greater or
798 equal to (key), according to comparison (cmp).
799 
800 Cmp should return true if first argument is less than second argument.
801 
802 Returned value is the found element, if present in the collection or place where
803 new element with value (key) should be inserted.
804 */
805 template <typename IterT, typename KeyT, typename CmpT>
806 static IterT VmaBinaryFindFirstNotLess(IterT beg, IterT end, const KeyT &key, CmpT cmp)
807 {
808  size_t down = 0, up = (end - beg);
809  while(down < up)
810  {
811  const size_t mid = (down + up) / 2;
812  if(cmp(*(beg+mid), key))
813  down = mid + 1;
814  else
815  up = mid;
816  }
817  return beg + down;
818 }
819 
821 // Memory allocation
822 
823 static void* VmaMalloc(const VkAllocationCallbacks* pAllocationCallbacks, size_t size, size_t alignment)
824 {
825  if((pAllocationCallbacks != VMA_NULL) &&
826  (pAllocationCallbacks->pfnAllocation != VMA_NULL))
827  {
828  return (*pAllocationCallbacks->pfnAllocation)(
829  pAllocationCallbacks->pUserData,
830  size,
831  alignment,
832  VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
833  }
834  else
835  {
836  return VMA_SYSTEM_ALIGNED_MALLOC(size, alignment);
837  }
838 }
839 
840 static void VmaFree(const VkAllocationCallbacks* pAllocationCallbacks, void* ptr)
841 {
842  if((pAllocationCallbacks != VMA_NULL) &&
843  (pAllocationCallbacks->pfnFree != VMA_NULL))
844  {
845  (*pAllocationCallbacks->pfnFree)(pAllocationCallbacks->pUserData, ptr);
846  }
847  else
848  {
849  VMA_SYSTEM_FREE(ptr);
850  }
851 }
852 
853 template<typename T>
854 static T* VmaAllocate(const VkAllocationCallbacks* pAllocationCallbacks)
855 {
856  return (T*)VmaMalloc(pAllocationCallbacks, sizeof(T), VMA_ALIGN_OF(T));
857 }
858 
859 template<typename T>
860 static T* VmaAllocateArray(const VkAllocationCallbacks* pAllocationCallbacks, size_t count)
861 {
862  return (T*)VmaMalloc(pAllocationCallbacks, sizeof(T) * count, VMA_ALIGN_OF(T));
863 }
864 
865 #define vma_new(allocator, type) new(VmaAllocate<type>(allocator))(type)
866 
867 #define vma_new_array(allocator, type, count) new(VmaAllocateArray<type>((allocator), (count)))(type)
868 
869 template<typename T>
870 static void vma_delete(const VkAllocationCallbacks* pAllocationCallbacks, T* ptr)
871 {
872  ptr->~T();
873  VmaFree(pAllocationCallbacks, ptr);
874 }
875 
876 template<typename T>
877 static void vma_delete_array(const VkAllocationCallbacks* pAllocationCallbacks, T* ptr, size_t count)
878 {
879  if(ptr != VMA_NULL)
880  {
881  for(size_t i = count; i--; )
882  ptr[i].~T();
883  VmaFree(pAllocationCallbacks, ptr);
884  }
885 }
886 
887 // STL-compatible allocator.
888 template<typename T>
889 class VmaStlAllocator
890 {
891 public:
892  const VkAllocationCallbacks* const m_pCallbacks;
893  typedef T value_type;
894 
895  VmaStlAllocator(const VkAllocationCallbacks* pCallbacks) : m_pCallbacks(pCallbacks) { }
896  template<typename U> VmaStlAllocator(const VmaStlAllocator<U>& src) : m_pCallbacks(src.m_pCallbacks) { }
897 
898  T* allocate(size_t n) { return VmaAllocateArray<T>(m_pCallbacks, n); }
899  void deallocate(T* p, size_t n) { VmaFree(m_pCallbacks, p); }
900 
901  template<typename U>
902  bool operator==(const VmaStlAllocator<U>& rhs) const
903  {
904  return m_pCallbacks == rhs.m_pCallbacks;
905  }
906  template<typename U>
907  bool operator!=(const VmaStlAllocator<U>& rhs) const
908  {
909  return m_pCallbacks != rhs.m_pCallbacks;
910  }
911 
912  VmaStlAllocator& operator=(const VmaStlAllocator& x) = delete;
913 };
914 
915 #if VMA_USE_STL_VECTOR
916 
917 #define VmaVector std::vector
918 
919 template<typename T, typename allocatorT>
920 static void VectorInsert(std::vector<T, allocatorT>& vec, size_t index, const T& item)
921 {
922  vec.insert(vec.begin() + index, item);
923 }
924 
925 template<typename T, typename allocatorT>
926 static void VectorRemove(std::vector<T, allocatorT>& vec, size_t index)
927 {
928  vec.erase(vec.begin() + index);
929 }
930 
931 #else // #if VMA_USE_STL_VECTOR
932 
933 /* Class with interface compatible with subset of std::vector.
934 T must be POD because constructors and destructors are not called and memcpy is
935 used for these objects. */
936 template<typename T, typename AllocatorT>
937 class VmaVector
938 {
939 public:
940  VmaVector(const AllocatorT& allocator) :
941  m_Allocator(allocator),
942  m_pArray(VMA_NULL),
943  m_Count(0),
944  m_Capacity(0)
945  {
946  }
947 
948  VmaVector(AllocatorT& allocator) :
949  m_Allocator(allocator),
950  m_pArray(VMA_NULL),
951  m_Count(0),
952  m_Capacity(0)
953  {
954  }
955 
956  VmaVector(size_t count, AllocatorT& allocator) :
957  m_Allocator(allocator),
958  m_pArray(count ? (T*)VmaAllocateArray<T>(allocator->m_pCallbacks, count) : VMA_NULL),
959  m_Count(count),
960  m_Capacity(count)
961  {
962  }
963 
964  VmaVector(const VmaVector<T, AllocatorT>& src) :
965  m_Allocator(src.m_Allocator),
966  m_pArray(src.m_Count ? (T*)VmaAllocateArray<T>(src->m_pCallbacks, src.m_Count) : VMA_NULL),
967  m_Count(src.m_Count),
968  m_Capacity(src.m_Count)
969  {
970  if(m_Count != 0)
971  memcpy(m_pArray, src.m_pArray, m_Count * sizeof(T));
972  }
973 
974  ~VmaVector()
975  {
976  VmaFree(m_Allocator.m_pCallbacks, m_pArray);
977  }
978 
979  VmaVector& operator=(const VmaVector<T, AllocatorT>& rhs)
980  {
981  if(&rhs != this)
982  {
983  Resize(rhs.m_Count);
984  if(m_Count != 0)
985  memcpy(m_pArray, rhs.m_pArray, m_Count * sizeof(T));
986  }
987  return *this;
988  }
989 
990  bool empty() const { return m_Count == 0; }
991  size_t size() const { return m_Count; }
992  T* data() { return m_pArray; }
993  const T* data() const { return m_pArray; }
994 
995  T& operator[](size_t index)
996  {
997  VMA_HEAVY_ASSERT(index < m_Count);
998  return m_pArray[index];
999  }
1000  const T& operator[](size_t index) const
1001  {
1002  VMA_HEAVY_ASSERT(index < m_Count);
1003  return m_pArray[index];
1004  }
1005 
1006  T& front()
1007  {
1008  VMA_HEAVY_ASSERT(m_Count > 0);
1009  return m_pArray[0];
1010  }
1011  const T& front() const
1012  {
1013  VMA_HEAVY_ASSERT(m_Count > 0);
1014  return m_pArray[0];
1015  }
1016  T& back()
1017  {
1018  VMA_HEAVY_ASSERT(m_Count > 0);
1019  return m_pArray[m_Count - 1];
1020  }
1021  const T& back() const
1022  {
1023  VMA_HEAVY_ASSERT(m_Count > 0);
1024  return m_pArray[m_Count - 1];
1025  }
1026 
1027  void reserve(size_t newCapacity, bool freeMemory = false)
1028  {
1029  newCapacity = VMA_MAX(newCapacity, m_Count);
1030 
1031  if((newCapacity < m_Capacity) && !freeMemory)
1032  newCapacity = m_Capacity;
1033 
1034  if(newCapacity != m_Capacity)
1035  {
1036  T* const newArray = newCapacity ? VmaAllocateArray<T>(m_Allocator, newCapacity) : VMA_NULL;
1037  if(m_Count != 0)
1038  memcpy(newArray, m_pArray, m_Count * sizeof(T));
1039  VmaFree(m_Allocator.m_pCallbacks, m_pArray);
1040  m_Capacity = newCapacity;
1041  m_pArray = newArray;
1042  }
1043  }
1044 
1045  void resize(size_t newCount, bool freeMemory = false)
1046  {
1047  size_t newCapacity = m_Capacity;
1048  if(newCount > m_Capacity)
1049  newCapacity = VMA_MAX(newCount, VMA_MAX(m_Capacity * 3 / 2, (size_t)8));
1050  else if(freeMemory)
1051  newCapacity = newCount;
1052 
1053  if(newCapacity != m_Capacity)
1054  {
1055  T* const newArray = newCapacity ? VmaAllocateArray<T>(m_Allocator.m_pCallbacks, newCapacity) : VMA_NULL;
1056  const size_t elementsToCopy = VMA_MIN(m_Count, newCount);
1057  if(elementsToCopy != 0)
1058  memcpy(newArray, m_pArray, elementsToCopy * sizeof(T));
1059  VmaFree(m_Allocator.m_pCallbacks, m_pArray);
1060  m_Capacity = newCapacity;
1061  m_pArray = newArray;
1062  }
1063 
1064  m_Count = newCount;
1065  }
1066 
1067  void clear(bool freeMemory = false)
1068  {
1069  resize(0, freeMemory);
1070  }
1071 
1072  void insert(size_t index, const T& src)
1073  {
1074  VMA_HEAVY_ASSERT(index <= m_Count);
1075  const size_t oldCount = size();
1076  resize(oldCount + 1);
1077  if(index < oldCount)
1078  memmove(m_pArray + (index + 1), m_pArray + index, (oldCount - index) * sizeof(T));
1079  m_pArray[index] = src;
1080  }
1081 
1082  void remove(size_t index)
1083  {
1084  VMA_HEAVY_ASSERT(index < m_Count);
1085  const size_t oldCount = size();
1086  if(index < oldCount - 1)
1087  memmove(m_pArray + index, m_pArray + (index + 1), (oldCount - index - 1) * sizeof(T));
1088  resize(oldCount - 1);
1089  }
1090 
1091  void push_back(const T& src)
1092  {
1093  const size_t newIndex = size();
1094  resize(newIndex + 1);
1095  m_pArray[newIndex] = src;
1096  }
1097 
1098  void pop_back()
1099  {
1100  VMA_HEAVY_ASSERT(m_Count > 0);
1101  resize(size() - 1);
1102  }
1103 
1104  void push_front(const T& src)
1105  {
1106  insert(0, src);
1107  }
1108 
1109  void pop_front()
1110  {
1111  VMA_HEAVY_ASSERT(m_Count > 0);
1112  remove(0);
1113  }
1114 
1115  typedef T* iterator;
1116 
1117  iterator begin() { return m_pArray; }
1118  iterator end() { return m_pArray + m_Count; }
1119 
1120 private:
1121  AllocatorT m_Allocator;
1122  T* m_pArray;
1123  size_t m_Count;
1124  size_t m_Capacity;
1125 };
1126 
1127 template<typename T, typename allocatorT>
1128 static void VectorInsert(VmaVector<T, allocatorT>& vec, size_t index, const T& item)
1129 {
1130  vec.insert(index, item);
1131 }
1132 
1133 template<typename T, typename allocatorT>
1134 static void VectorRemove(VmaVector<T, allocatorT>& vec, size_t index)
1135 {
1136  vec.remove(index);
1137 }
1138 
1139 #endif // #if VMA_USE_STL_VECTOR
1140 
1142 // class VmaPoolAllocator
1143 
1144 /*
1145 Allocator for objects of type T using a list of arrays (pools) to speed up
1146 allocation. Number of elements that can be allocated is not bounded because
1147 allocator can create multiple blocks.
1148 */
1149 template<typename T>
1150 class VmaPoolAllocator
1151 {
1152 public:
1153  VmaPoolAllocator(const VkAllocationCallbacks* pAllocationCallbacks, size_t itemsPerBlock);
1154  ~VmaPoolAllocator();
1155  void Clear();
1156  T* Alloc();
1157  void Free(T* ptr);
1158 
1159 private:
1160  union Item
1161  {
1162  uint32_t NextFreeIndex;
1163  T Value;
1164  };
1165 
1166  struct ItemBlock
1167  {
1168  Item* pItems;
1169  uint32_t FirstFreeIndex;
1170  };
1171 
1172  const VkAllocationCallbacks* m_pAllocationCallbacks;
1173  size_t m_ItemsPerBlock;
1174  VmaVector< ItemBlock, VmaStlAllocator<ItemBlock> > m_ItemBlocks;
1175 
1176  ItemBlock& CreateNewBlock();
1177 };
1178 
1179 template<typename T>
1180 VmaPoolAllocator<T>::VmaPoolAllocator(const VkAllocationCallbacks* pAllocationCallbacks, size_t itemsPerBlock) :
1181  m_pAllocationCallbacks(pAllocationCallbacks),
1182  m_ItemsPerBlock(itemsPerBlock),
1183  m_ItemBlocks(VmaStlAllocator<ItemBlock>(pAllocationCallbacks))
1184 {
1185  VMA_ASSERT(itemsPerBlock > 0);
1186 }
1187 
1188 template<typename T>
1189 VmaPoolAllocator<T>::~VmaPoolAllocator()
1190 {
1191  Clear();
1192 }
1193 
1194 template<typename T>
1195 void VmaPoolAllocator<T>::Clear()
1196 {
1197  for(size_t i = m_ItemBlocks.size(); i--; )
1198  vma_delete_array(m_pAllocationCallbacks, m_ItemBlocks[i].pItems, m_ItemsPerBlock);
1199  m_ItemBlocks.clear();
1200 }
1201 
1202 template<typename T>
1203 T* VmaPoolAllocator<T>::Alloc()
1204 {
1205  for(size_t i = m_ItemBlocks.size(); i--; )
1206  {
1207  ItemBlock& block = m_ItemBlocks[i];
1208  // This block has some free items: Use first one.
1209  if(block.FirstFreeIndex != UINT32_MAX)
1210  {
1211  Item* const pItem = &block.pItems[block.FirstFreeIndex];
1212  block.FirstFreeIndex = pItem->NextFreeIndex;
1213  return &pItem->Value;
1214  }
1215  }
1216 
1217  // No block has free item: Create new one and use it.
1218  ItemBlock& newBlock = CreateNewBlock();
1219  Item* const pItem = &newBlock.pItems[0];
1220  newBlock.FirstFreeIndex = pItem->NextFreeIndex;
1221  return &pItem->Value;
1222 }
1223 
1224 template<typename T>
1225 void VmaPoolAllocator<T>::Free(T* ptr)
1226 {
1227  // Search all memory blocks to find ptr.
1228  for(size_t i = 0; i < m_ItemBlocks.size(); ++i)
1229  {
1230  ItemBlock& block = m_ItemBlocks[i];
1231 
1232  // Casting to union.
1233  Item* pItemPtr;
1234  memcpy(&pItemPtr, &ptr, sizeof(pItemPtr));
1235 
1236  // Check if pItemPtr is in address range of this block.
1237  if((pItemPtr >= block.pItems) && (pItemPtr < block.pItems + m_ItemsPerBlock))
1238  {
1239  const uint32_t index = static_cast<uint32_t>(pItemPtr - block.pItems);
1240  pItemPtr->NextFreeIndex = block.FirstFreeIndex;
1241  block.FirstFreeIndex = index;
1242  return;
1243  }
1244  }
1245  VMA_ASSERT(0 && "Pointer doesn't belong to this memory pool.");
1246 }
1247 
1248 template<typename T>
1249 typename VmaPoolAllocator<T>::ItemBlock& VmaPoolAllocator<T>::CreateNewBlock()
1250 {
1251  ItemBlock newBlock = {
1252  vma_new_array(m_pAllocationCallbacks, Item, m_ItemsPerBlock), 0 };
1253 
1254  m_ItemBlocks.push_back(newBlock);
1255 
1256  // Setup singly-linked list of all free items in this block.
1257  for(uint32_t i = 0; i < m_ItemsPerBlock - 1; ++i)
1258  newBlock.pItems[i].NextFreeIndex = i + 1;
1259  newBlock.pItems[m_ItemsPerBlock - 1].NextFreeIndex = UINT32_MAX;
1260  return m_ItemBlocks.back();
1261 }
1262 
1264 // class VmaRawList, VmaList
1265 
1266 #if VMA_USE_STL_LIST
1267 
1268 #define VmaList std::list
1269 
1270 #else // #if VMA_USE_STL_LIST
1271 
1272 template<typename T>
1273 struct VmaListItem
1274 {
1275  VmaListItem* pPrev;
1276  VmaListItem* pNext;
1277  T Value;
1278 };
1279 
1280 // Doubly linked list.
1281 template<typename T>
1282 class VmaRawList
1283 {
1284 public:
1285  typedef VmaListItem<T> ItemType;
1286 
1287  VmaRawList(const VkAllocationCallbacks* pAllocationCallbacks);
1288  ~VmaRawList();
1289  void Clear();
1290 
1291  size_t GetCount() const { return m_Count; }
1292  bool IsEmpty() const { return m_Count == 0; }
1293 
1294  ItemType* Front() { return m_pFront; }
1295  const ItemType* Front() const { return m_pFront; }
1296  ItemType* Back() { return m_pBack; }
1297  const ItemType* Back() const { return m_pBack; }
1298 
1299  ItemType* PushBack();
1300  ItemType* PushFront();
1301  ItemType* PushBack(const T& value);
1302  ItemType* PushFront(const T& value);
1303  void PopBack();
1304  void PopFront();
1305 
1306  // Item can be null - it means PushBack.
1307  ItemType* InsertBefore(ItemType* pItem);
1308  // Item can be null - it means PushFront.
1309  ItemType* InsertAfter(ItemType* pItem);
1310 
1311  ItemType* InsertBefore(ItemType* pItem, const T& value);
1312  ItemType* InsertAfter(ItemType* pItem, const T& value);
1313 
1314  void Remove(ItemType* pItem);
1315 
1316 private:
1317  const VkAllocationCallbacks* const m_pAllocationCallbacks;
1318  VmaPoolAllocator<ItemType> m_ItemAllocator;
1319  ItemType* m_pFront;
1320  ItemType* m_pBack;
1321  size_t m_Count;
1322 
1323  // Declared not defined, to block copy constructor and assignment operator.
1324  VmaRawList(const VmaRawList<T>& src);
1325  VmaRawList<T>& operator=(const VmaRawList<T>& rhs);
1326 };
1327 
1328 template<typename T>
1329 VmaRawList<T>::VmaRawList(const VkAllocationCallbacks* pAllocationCallbacks) :
1330  m_pAllocationCallbacks(pAllocationCallbacks),
1331  m_ItemAllocator(pAllocationCallbacks, 128),
1332  m_pFront(VMA_NULL),
1333  m_pBack(VMA_NULL),
1334  m_Count(0)
1335 {
1336 }
1337 
1338 template<typename T>
1339 VmaRawList<T>::~VmaRawList()
1340 {
1341  // Intentionally not calling Clear, because that would be unnecessary
1342  // computations to return all items to m_ItemAllocator as free.
1343 }
1344 
1345 template<typename T>
1346 void VmaRawList<T>::Clear()
1347 {
1348  if(IsEmpty() == false)
1349  {
1350  ItemType* pItem = m_pBack;
1351  while(pItem != VMA_NULL)
1352  {
1353  ItemType* const pPrevItem = pItem->pPrev;
1354  m_ItemAllocator.Free(pItem);
1355  pItem = pPrevItem;
1356  }
1357  m_pFront = VMA_NULL;
1358  m_pBack = VMA_NULL;
1359  m_Count = 0;
1360  }
1361 }
1362 
1363 template<typename T>
1364 VmaListItem<T>* VmaRawList<T>::PushBack()
1365 {
1366  ItemType* const pNewItem = m_ItemAllocator.Alloc();
1367  pNewItem->pNext = VMA_NULL;
1368  if(IsEmpty())
1369  {
1370  pNewItem->pPrev = VMA_NULL;
1371  m_pFront = pNewItem;
1372  m_pBack = pNewItem;
1373  m_Count = 1;
1374  }
1375  else
1376  {
1377  pNewItem->pPrev = m_pBack;
1378  m_pBack->pNext = pNewItem;
1379  m_pBack = pNewItem;
1380  ++m_Count;
1381  }
1382  return pNewItem;
1383 }
1384 
1385 template<typename T>
1386 VmaListItem<T>* VmaRawList<T>::PushFront()
1387 {
1388  ItemType* const pNewItem = m_ItemAllocator.Alloc();
1389  pNewItem->pPrev = VMA_NULL;
1390  if(IsEmpty())
1391  {
1392  pNewItem->pNext = VMA_NULL;
1393  m_pFront = pNewItem;
1394  m_pBack = pNewItem;
1395  m_Count = 1;
1396  }
1397  else
1398  {
1399  pNewItem->pNext = m_pFront;
1400  m_pFront->pPrev = pNewItem;
1401  m_pFront = pNewItem;
1402  ++m_Count;
1403  }
1404  return pNewItem;
1405 }
1406 
1407 template<typename T>
1408 VmaListItem<T>* VmaRawList<T>::PushBack(const T& value)
1409 {
1410  ItemType* const pNewItem = PushBack();
1411  pNewItem->Value = value;
1412  return pNewItem;
1413 }
1414 
1415 template<typename T>
1416 VmaListItem<T>* VmaRawList<T>::PushFront(const T& value)
1417 {
1418  ItemType* const pNewItem = PushFront();
1419  pNewItem->Value = value;
1420  return pNewItem;
1421 }
1422 
1423 template<typename T>
1424 void VmaRawList<T>::PopBack()
1425 {
1426  VMA_HEAVY_ASSERT(m_Count > 0);
1427  ItemType* const pBackItem = m_pBack;
1428  ItemType* const pPrevItem = pBackItem->pPrev;
1429  if(pPrevItem != VMA_NULL)
1430  pPrevItem->pNext = VMA_NULL;
1431  m_pBack = pPrevItem;
1432  m_ItemAllocator.Free(pBackItem);
1433  --m_Count;
1434 }
1435 
1436 template<typename T>
1437 void VmaRawList<T>::PopFront()
1438 {
1439  VMA_HEAVY_ASSERT(m_Count > 0);
1440  ItemType* const pFrontItem = m_pFront;
1441  ItemType* const pNextItem = pFrontItem->pNext;
1442  if(pNextItem != VMA_NULL)
1443  pNextItem->pPrev = VMA_NULL;
1444  m_pFront = pNextItem;
1445  m_ItemAllocator.Free(pFrontItem);
1446  --m_Count;
1447 }
1448 
1449 template<typename T>
1450 void VmaRawList<T>::Remove(ItemType* pItem)
1451 {
1452  VMA_HEAVY_ASSERT(pItem != VMA_NULL);
1453  VMA_HEAVY_ASSERT(m_Count > 0);
1454 
1455  if(pItem->pPrev != VMA_NULL)
1456  pItem->pPrev->pNext = pItem->pNext;
1457  else
1458  {
1459  VMA_HEAVY_ASSERT(m_pFront == pItem);
1460  m_pFront = pItem->pNext;
1461  }
1462 
1463  if(pItem->pNext != VMA_NULL)
1464  pItem->pNext->pPrev = pItem->pPrev;
1465  else
1466  {
1467  VMA_HEAVY_ASSERT(m_pBack == pItem);
1468  m_pBack = pItem->pPrev;
1469  }
1470 
1471  m_ItemAllocator.Free(pItem);
1472  --m_Count;
1473 }
1474 
1475 template<typename T>
1476 VmaListItem<T>* VmaRawList<T>::InsertBefore(ItemType* pItem)
1477 {
1478  if(pItem != VMA_NULL)
1479  {
1480  ItemType* const prevItem = pItem->pPrev;
1481  ItemType* const newItem = m_ItemAllocator.Alloc();
1482  newItem->pPrev = prevItem;
1483  newItem->pNext = pItem;
1484  pItem->pPrev = newItem;
1485  if(prevItem != VMA_NULL)
1486  prevItem->pNext = newItem;
1487  else
1488  {
1489  VMA_HEAVY_ASSERT(m_pFront = pItem);
1490  m_pFront = newItem;
1491  }
1492  ++m_Count;
1493  return newItem;
1494  }
1495  else
1496  return PushBack();
1497 }
1498 
1499 template<typename T>
1500 VmaListItem<T>* VmaRawList<T>::InsertAfter(ItemType* pItem)
1501 {
1502  if(pItem != VMA_NULL)
1503  {
1504  ItemType* const nextItem = pItem->pNext;
1505  ItemType* const newItem = m_ItemAllocator.Alloc();
1506  newItem->pNext = nextItem;
1507  newItem->pPrev = pItem;
1508  pItem->pNext = newItem;
1509  if(nextItem != VMA_NULL)
1510  nextItem->pPrev = newItem;
1511  else
1512  {
1513  VMA_HEAVY_ASSERT(m_pBack = pItem);
1514  m_pBack = newItem;
1515  }
1516  ++m_Count;
1517  return newItem;
1518  }
1519  else
1520  return PushFront();
1521 }
1522 
1523 template<typename T>
1524 VmaListItem<T>* VmaRawList<T>::InsertBefore(ItemType* pItem, const T& value)
1525 {
1526  ItemType* const newItem = InsertBefore(pItem);
1527  newItem->Value = value;
1528  return newItem;
1529 }
1530 
1531 template<typename T>
1532 VmaListItem<T>* VmaRawList<T>::InsertAfter(ItemType* pItem, const T& value)
1533 {
1534  ItemType* const newItem = InsertAfter(pItem);
1535  newItem->Value = value;
1536  return newItem;
1537 }
1538 
1539 template<typename T, typename AllocatorT>
1540 class VmaList
1541 {
1542 public:
1543  class iterator
1544  {
1545  public:
1546  iterator() :
1547  m_pList(VMA_NULL),
1548  m_pItem(VMA_NULL)
1549  {
1550  }
1551 
1552  T& operator*() const
1553  {
1554  VMA_HEAVY_ASSERT(m_pItem != VMA_NULL);
1555  return m_pItem->Value;
1556  }
1557  T* operator->() const
1558  {
1559  VMA_HEAVY_ASSERT(m_pItem != VMA_NULL);
1560  return &m_pItem->Value;
1561  }
1562 
1563  iterator& operator++()
1564  {
1565  VMA_HEAVY_ASSERT(m_pItem != VMA_NULL);
1566  m_pItem = m_pItem->pNext;
1567  return *this;
1568  }
1569  iterator& operator--()
1570  {
1571  if(m_pItem != VMA_NULL)
1572  m_pItem = m_pItem->pPrev;
1573  else
1574  {
1575  VMA_HEAVY_ASSERT(!m_pList.IsEmpty());
1576  m_pItem = m_pList->Back();
1577  }
1578  return *this;
1579  }
1580 
1581  iterator operator++(int)
1582  {
1583  iterator result = *this;
1584  ++*this;
1585  return result;
1586  }
1587  iterator operator--(int)
1588  {
1589  iterator result = *this;
1590  --*this;
1591  return result;
1592  }
1593 
1594  bool operator==(const iterator& rhs) const
1595  {
1596  VMA_HEAVY_ASSERT(m_pList == rhs.m_pList);
1597  return m_pItem == rhs.m_pItem;
1598  }
1599  bool operator!=(const iterator& rhs) const
1600  {
1601  VMA_HEAVY_ASSERT(m_pList == rhs.m_pList);
1602  return m_pItem != rhs.m_pItem;
1603  }
1604 
1605  private:
1606  VmaRawList<T>* m_pList;
1607  VmaListItem<T>* m_pItem;
1608 
1609  iterator(VmaRawList<T>* pList, VmaListItem<T>* pItem) :
1610  m_pList(pList),
1611  m_pItem(pItem)
1612  {
1613  }
1614 
1615  friend class VmaList<T, AllocatorT>;
1616  friend class VmaList<T, AllocatorT>:: const_iterator;
1617  };
1618 
1619  class const_iterator
1620  {
1621  public:
1622  const_iterator() :
1623  m_pList(VMA_NULL),
1624  m_pItem(VMA_NULL)
1625  {
1626  }
1627 
1628  const_iterator(const iterator& src) :
1629  m_pList(src.m_pList),
1630  m_pItem(src.m_pItem)
1631  {
1632  }
1633 
1634  const T& operator*() const
1635  {
1636  VMA_HEAVY_ASSERT(m_pItem != VMA_NULL);
1637  return m_pItem->Value;
1638  }
1639  const T* operator->() const
1640  {
1641  VMA_HEAVY_ASSERT(m_pItem != VMA_NULL);
1642  return &m_pItem->Value;
1643  }
1644 
1645  const_iterator& operator++()
1646  {
1647  VMA_HEAVY_ASSERT(m_pItem != VMA_NULL);
1648  m_pItem = m_pItem->pNext;
1649  return *this;
1650  }
1651  const_iterator& operator--()
1652  {
1653  if(m_pItem != VMA_NULL)
1654  m_pItem = m_pItem->pPrev;
1655  else
1656  {
1657  VMA_HEAVY_ASSERT(!m_pList->IsEmpty());
1658  m_pItem = m_pList->Back();
1659  }
1660  return *this;
1661  }
1662 
1663  const_iterator operator++(int)
1664  {
1665  const_iterator result = *this;
1666  ++*this;
1667  return result;
1668  }
1669  const_iterator operator--(int)
1670  {
1671  const_iterator result = *this;
1672  --*this;
1673  return result;
1674  }
1675 
1676  bool operator==(const const_iterator& rhs) const
1677  {
1678  VMA_HEAVY_ASSERT(m_pList == rhs.m_pList);
1679  return m_pItem == rhs.m_pItem;
1680  }
1681  bool operator!=(const const_iterator& rhs) const
1682  {
1683  VMA_HEAVY_ASSERT(m_pList == rhs.m_pList);
1684  return m_pItem != rhs.m_pItem;
1685  }
1686 
1687  private:
1688  const_iterator(const VmaRawList<T>* pList, const VmaListItem<T>* pItem) :
1689  m_pList(pList),
1690  m_pItem(pItem)
1691  {
1692  }
1693 
1694  const VmaRawList<T>* m_pList;
1695  const VmaListItem<T>* m_pItem;
1696 
1697  friend class VmaList<T, AllocatorT>;
1698  };
1699 
1700  VmaList(AllocatorT& allocator) : m_RawList(allocator.m_pCallbacks) { }
1701  VmaList(const AllocatorT& allocator) : m_RawList(allocator.m_pCallbacks) { }
1702 
1703  bool empty() const { return m_RawList.IsEmpty(); }
1704  size_t size() const { return m_RawList.GetCount(); }
1705 
1706  iterator begin() { return iterator(&m_RawList, m_RawList.Front()); }
1707  iterator end() { return iterator(&m_RawList, VMA_NULL); }
1708 
1709  const_iterator cbegin() const { return const_iterator(&m_RawList, m_RawList.Front()); }
1710  const_iterator cend() const { return const_iterator(&m_RawList, VMA_NULL); }
1711 
1712  void clear() { m_RawList.Clear(); }
1713  void push_back(const T& value) { m_RawList.PushBack(value); }
1714  void erase(iterator it) { m_RawList.Remove(it.m_pItem); }
1715  iterator insert(iterator it, const T& value) { return iterator(&m_RawList, m_RawList.InsertBefore(it.m_pItem, value)); }
1716 
1717 private:
1718  VmaRawList<T> m_RawList;
1719 };
1720 
1721 #endif // #if VMA_USE_STL_LIST
1722 
1724 // class VmaMap
1725 
1726 #if VMA_USE_STL_UNORDERED_MAP
1727 
1728 #define VmaPair std::pair
1729 
1730 #define VMA_MAP_TYPE(KeyT, ValueT) \
1731  std::unordered_map< KeyT, ValueT, std::hash<KeyT>, std::equal_to<KeyT>, VmaStlAllocator< std::pair<KeyT, ValueT> > >
1732 
1733 #else // #if VMA_USE_STL_UNORDERED_MAP
1734 
1735 template<typename T1, typename T2>
1736 struct VmaPair
1737 {
1738  T1 first;
1739  T2 second;
1740 
1741  VmaPair() : first(), second() { }
1742  VmaPair(const T1& firstSrc, const T2& secondSrc) : first(firstSrc), second(secondSrc) { }
1743 };
1744 
1745 /* Class compatible with subset of interface of std::unordered_map.
1746 KeyT, ValueT must be POD because they will be stored in VmaVector.
1747 */
1748 template<typename KeyT, typename ValueT>
1749 class VmaMap
1750 {
1751 public:
1752  typedef VmaPair<KeyT, ValueT> PairType;
1753  typedef PairType* iterator;
1754 
1755  VmaMap(VmaStlAllocator<PairType>& allocator) : m_Vector(allocator) { }
1756  VmaMap(const VmaStlAllocator<PairType>& allocator) : m_Vector(allocator) { }
1757 
1758  iterator begin() { return m_Vector.begin(); }
1759  iterator end() { return m_Vector.end(); }
1760 
1761  void insert(const PairType& pair);
1762  iterator find(const KeyT& key);
1763  void erase(iterator it);
1764 
1765 private:
1766  VmaVector< PairType, VmaStlAllocator<PairType> > m_Vector;
1767 };
1768 
1769 #define VMA_MAP_TYPE(KeyT, ValueT) VmaMap<KeyT, ValueT>
1770 
1771 template<typename FirstT, typename SecondT>
1772 struct VmaPairFirstLess
1773 {
1774  bool operator()(const VmaPair<FirstT, SecondT>& lhs, const VmaPair<FirstT, SecondT>& rhs) const
1775  {
1776  return lhs.first < rhs.first;
1777  }
1778  bool operator()(const VmaPair<FirstT, SecondT>& lhs, const FirstT& rhsFirst) const
1779  {
1780  return lhs.first < rhsFirst;
1781  }
1782 };
1783 
1784 template<typename KeyT, typename ValueT>
1785 void VmaMap<KeyT, ValueT>::insert(const PairType& pair)
1786 {
1787  const size_t indexToInsert = VmaBinaryFindFirstNotLess(
1788  m_Vector.data(),
1789  m_Vector.data() + m_Vector.size(),
1790  pair,
1791  VmaPairFirstLess<KeyT, ValueT>()) - m_Vector.data();
1792  VectorInsert(m_Vector, indexToInsert, pair);
1793 }
1794 
1795 template<typename KeyT, typename ValueT>
1796 VmaPair<KeyT, ValueT>* VmaMap<KeyT, ValueT>::find(const KeyT& key)
1797 {
1798  PairType* it = VmaBinaryFindFirstNotLess(
1799  m_Vector.data(),
1800  m_Vector.data() + m_Vector.size(),
1801  key,
1802  VmaPairFirstLess<KeyT, ValueT>());
1803  if((it != m_Vector.end()) && (it->first == key))
1804  return it;
1805  else
1806  return m_Vector.end();
1807 }
1808 
1809 template<typename KeyT, typename ValueT>
1810 void VmaMap<KeyT, ValueT>::erase(iterator it)
1811 {
1812  VectorRemove(m_Vector, it - m_Vector.begin());
1813 }
1814 
1815 #endif // #if VMA_USE_STL_UNORDERED_MAP
1816 
1817 /*
1818 Represents a region of VmaAllocation that is either assigned and returned as
1819 allocated memory block or free.
1820 */
1821 struct VmaSuballocation
1822 {
1823  VkDeviceSize offset;
1824  VkDeviceSize size;
1825  VmaSuballocationType type;
1826 };
1827 
1828 typedef VmaList< VmaSuballocation, VmaStlAllocator<VmaSuballocation> > VmaSuballocationList;
1829 
1830 // Parameters of an allocation.
1831 struct VmaAllocationRequest
1832 {
1833  VmaSuballocationList::iterator freeSuballocationItem;
1834  VkDeviceSize offset;
1835 };
1836 
1837 /* Single block of memory - VkDeviceMemory with all the data about its regions
1838 assigned or free. */
1839 class VmaAllocation
1840 {
1841 public:
1842  VkDeviceMemory m_hMemory;
1843  VkDeviceSize m_Size;
1844  uint32_t m_FreeCount;
1845  VkDeviceSize m_SumFreeSize;
1846  VmaSuballocationList m_Suballocations;
1847  // Suballocations that are free and have size greater than certain threshold.
1848  // Sorted by size, ascending.
1849  VmaVector< VmaSuballocationList::iterator, VmaStlAllocator< VmaSuballocationList::iterator > > m_FreeSuballocationsBySize;
1850 
1851  VmaAllocation(VmaAllocator hAllocator);
1852 
1853  ~VmaAllocation()
1854  {
1855  VMA_ASSERT(m_hMemory == VK_NULL_HANDLE);
1856  }
1857 
1858  // Always call after construction.
1859  void Init(VkDeviceMemory newMemory, VkDeviceSize newSize);
1860  // Always call before destruction.
1861  void Destroy(VmaAllocator allocator);
1862 
1863  // Validates all data structures inside this object. If not valid, returns false.
1864  bool Validate() const;
1865 
1866  // Tries to find a place for suballocation with given parameters inside this allocation.
1867  // If succeeded, fills pAllocationRequest and returns true.
1868  // If failed, returns false.
1869  bool CreateAllocationRequest(
1870  VkDeviceSize bufferImageGranularity,
1871  VkDeviceSize allocSize,
1872  VkDeviceSize allocAlignment,
1873  VmaSuballocationType allocType,
1874  VmaAllocationRequest* pAllocationRequest);
1875 
1876  // Checks if requested suballocation with given parameters can be placed in given pFreeSuballocItem.
1877  // If yes, fills pOffset and returns true. If no, returns false.
1878  bool CheckAllocation(
1879  VkDeviceSize bufferImageGranularity,
1880  VkDeviceSize allocSize,
1881  VkDeviceSize allocAlignment,
1882  VmaSuballocationType allocType,
1883  VmaSuballocationList::const_iterator freeSuballocItem,
1884  VkDeviceSize* pOffset) const;
1885 
1886  // Returns true if this allocation is empty - contains only single free suballocation.
1887  bool IsEmpty() const;
1888 
1889  // Makes actual allocation based on request. Request must already be checked
1890  // and valid.
1891  void Alloc(
1892  const VmaAllocationRequest& request,
1893  VmaSuballocationType type,
1894  VkDeviceSize allocSize);
1895 
1896  // Frees suballocation assigned to given memory region.
1897  void Free(const VkMappedMemoryRange* pMemory);
1898 
1899 #if VMA_STATS_STRING_ENABLED
1900  void PrintDetailedMap(class VmaStringBuilder& sb) const;
1901 #endif
1902 
1903 private:
1904  // Given free suballocation, it merges it with following one, which must also be free.
1905  void MergeFreeWithNext(VmaSuballocationList::iterator item);
1906  // Releases given suballocation, making it free. Merges it with adjacent free
1907  // suballocations if applicable.
1908  void FreeSuballocation(VmaSuballocationList::iterator suballocItem);
1909  // Given free suballocation, it inserts it into sorted list of
1910  // m_FreeSuballocationsBySize if it's suitable.
1911  void RegisterFreeSuballocation(VmaSuballocationList::iterator item);
1912  // Given free suballocation, it removes it from sorted list of
1913  // m_FreeSuballocationsBySize if it's suitable.
1914  void UnregisterFreeSuballocation(VmaSuballocationList::iterator item);
1915 };
1916 
1917 // Allocation for an object that has its own private VkDeviceMemory.
1918 struct VmaOwnAllocation
1919 {
1920  VkDeviceMemory m_hMemory;
1921  VkDeviceSize m_Size;
1922  VmaSuballocationType m_Type;
1923 };
1924 
1925 struct VmaOwnAllocationMemoryHandleLess
1926 {
1927  bool operator()(const VmaOwnAllocation& lhs, const VmaOwnAllocation& rhs) const
1928  {
1929  return lhs.m_hMemory < rhs.m_hMemory;
1930  }
1931  bool operator()(const VmaOwnAllocation& lhs, VkDeviceMemory rhsMem) const
1932  {
1933  return lhs.m_hMemory < rhsMem;
1934  }
1935 };
1936 
1937 /* Sequence of VmaAllocation. Represents memory blocks allocated for a specific
1938 Vulkan memory type. */
1939 struct VmaAllocationVector
1940 {
1941  // Incrementally sorted by sumFreeSize, ascending.
1942  VmaVector< VmaAllocation*, VmaStlAllocator<VmaAllocation*> > m_Allocations;
1943 
1944  VmaAllocationVector(VmaAllocator hAllocator);
1945  ~VmaAllocationVector();
1946 
1947  bool IsEmpty() const { return m_Allocations.empty(); }
1948 
1949  // Tries to free memory from any if its Allocations.
1950  // Returns index of Allocation that the memory was freed from, or -1 if not found.
1951  size_t Free(const VkMappedMemoryRange* pMemory);
1952 
1953  // Performs single step in sorting m_Allocations. They may not be fully sorted
1954  // after this call.
1955  void IncrementallySortAllocations();
1956 
1957  // Adds statistics of this AllocationVector to pStats.
1958  void AddStats(VmaStats* pStats, uint32_t memTypeIndex, uint32_t memHeapIndex) const;
1959 
1960 #if VMA_STATS_STRING_ENABLED
1961  void PrintDetailedMap(class VmaStringBuilder& sb) const;
1962 #endif
1963 
1964 private:
1965  VmaAllocator m_hAllocator;
1966 };
1967 
1968 // Main allocator object.
1969 struct VmaAllocator_T
1970 {
1971  VkDevice m_hDevice;
1972  bool m_AllocationCallbacksSpecified;
1973  VkAllocationCallbacks m_AllocationCallbacks;
1974  VkDeviceSize m_PreferredLargeHeapBlockSize;
1975  VkDeviceSize m_PreferredSmallHeapBlockSize;
1976 
1977  VkPhysicalDeviceProperties m_PhysicalDeviceProperties;
1978  VkPhysicalDeviceMemoryProperties m_MemProps;
1979 
1980  VmaAllocationVector* m_pAllocations[VK_MAX_MEMORY_TYPES];
1981  /* There can be at most one allocation that is completely empty - a
1982  hysteresis to avoid pessimistic case of alternating creation and destruction
1983  of a VkDeviceMemory. */
1984  bool m_HasEmptyAllocation[VK_MAX_MEMORY_TYPES];
1985  VMA_MUTEX m_AllocationsMutex[VK_MAX_MEMORY_TYPES];
1986 
1987  // Each vector is sorted by memory (handle value).
1988  typedef VmaVector< VmaOwnAllocation, VmaStlAllocator<VmaOwnAllocation> > OwnAllocationVectorType;
1989  OwnAllocationVectorType* m_pOwnAllocations[VK_MAX_MEMORY_TYPES];
1990  VMA_MUTEX m_OwnAllocationsMutex[VK_MAX_MEMORY_TYPES];
1991 
1992  // Sorted by first (VkBuffer handle value).
1993  VMA_MAP_TYPE(VkBuffer, VkMappedMemoryRange) m_BufferToMemoryMap;
1994  VMA_MUTEX m_BufferToMemoryMapMutex;
1995  // Sorted by first (VkImage handle value).
1996  VMA_MAP_TYPE(VkImage, VkMappedMemoryRange) m_ImageToMemoryMap;
1997  VMA_MUTEX m_ImageToMemoryMapMutex;
1998 
1999  VmaAllocator_T(const VmaAllocatorCreateInfo* pCreateInfo);
2000  ~VmaAllocator_T();
2001 
2002  const VkAllocationCallbacks* GetAllocationCallbacks() const
2003  {
2004  return m_AllocationCallbacksSpecified ? &m_AllocationCallbacks : 0;
2005  }
2006 
2007  VkDeviceSize GetPreferredBlockSize(uint32_t memTypeIndex) const;
2008 
2009  VkDeviceSize GetBufferImageGranularity() const
2010  {
2011  return VMA_MAX(
2012  static_cast<VkDeviceSize>(VMA_DEBUG_MIN_BUFFER_IMAGE_GRANULARITY),
2013  m_PhysicalDeviceProperties.limits.bufferImageGranularity);
2014  }
2015 
2016  uint32_t GetMemoryHeapCount() const { return m_MemProps.memoryHeapCount; }
2017  uint32_t GetMemoryTypeCount() const { return m_MemProps.memoryTypeCount; }
2018 
2019  // Main allocation function.
2020  VkResult AllocateMemory(
2021  const VkMemoryRequirements& vkMemReq,
2022  const VmaMemoryRequirements& vmaMemReq,
2023  VmaSuballocationType suballocType,
2024  VkMappedMemoryRange* pMemory,
2025  uint32_t* pMemoryTypeIndex);
2026 
2027  // Main deallocation function.
2028  void FreeMemory(const VkMappedMemoryRange* pMemory);
2029 
2030  void CalculateStats(VmaStats* pStats);
2031 
2032 #if VMA_STATS_STRING_ENABLED
2033  void PrintDetailedMap(class VmaStringBuilder& sb);
2034 #endif
2035 
2036 private:
2037  VkPhysicalDevice m_PhysicalDevice;
2038 
2039  VkResult AllocateMemoryOfType(
2040  const VkMemoryRequirements& vkMemReq,
2041  const VmaMemoryRequirements& vmaMemReq,
2042  uint32_t memTypeIndex,
2043  VmaSuballocationType suballocType,
2044  VkMappedMemoryRange* pMemory);
2045 
2046  // Allocates and registers new VkDeviceMemory specifically for single allocation.
2047  VkResult AllocateOwnMemory(
2048  VkDeviceSize size,
2049  VmaSuballocationType suballocType,
2050  uint32_t memTypeIndex,
2051  VkMappedMemoryRange* pMemory);
2052 
2053  // Tries to free pMemory as Own Memory. Returns true if found and freed.
2054  bool FreeOwnMemory(const VkMappedMemoryRange* pMemory);
2055 };
2056 
2058 // Memory allocation #2 after VmaAllocator_T definition
2059 
2060 static void* VmaMalloc(VmaAllocator hAllocator, size_t size, size_t alignment)
2061 {
2062  return VmaMalloc(&hAllocator->m_AllocationCallbacks, size, alignment);
2063 }
2064 
2065 static void VmaFree(VmaAllocator hAllocator, void* ptr)
2066 {
2067  VmaFree(&hAllocator->m_AllocationCallbacks, ptr);
2068 }
2069 
2070 template<typename T>
2071 static T* VmaAllocate(VmaAllocator hAllocator)
2072 {
2073  return (T*)VmaMalloc(hAllocator, sizeof(T), VMA_ALIGN_OF(T));
2074 }
2075 
2076 template<typename T>
2077 static T* VmaAllocateArray(VmaAllocator hAllocator, size_t count)
2078 {
2079  return (T*)VmaMalloc(hAllocator, sizeof(T) * count, VMA_ALIGN_OF(T));
2080 }
2081 
2082 template<typename T>
2083 static void vma_delete(VmaAllocator hAllocator, T* ptr)
2084 {
2085  if(ptr != VMA_NULL)
2086  {
2087  ptr->~T();
2088  VmaFree(hAllocator, ptr);
2089  }
2090 }
2091 
2092 template<typename T>
2093 static void vma_delete_array(VmaAllocator hAllocator, T* ptr, size_t count)
2094 {
2095  if(ptr != VMA_NULL)
2096  {
2097  for(size_t i = count; i--; )
2098  ptr[i].~T();
2099  VmaFree(hAllocator, ptr);
2100  }
2101 }
2102 
2104 // VmaStringBuilder
2105 
2106 #if VMA_STATS_STRING_ENABLED
2107 
2108 class VmaStringBuilder
2109 {
2110 public:
2111  VmaStringBuilder(VmaAllocator alloc) : m_Data(VmaStlAllocator<char>(alloc->GetAllocationCallbacks())) { }
2112  size_t GetLength() const { return m_Data.size(); }
2113  const char* GetData() const { return m_Data.data(); }
2114 
2115  void Add(char ch) { m_Data.push_back(ch); }
2116  void Add(const char* pStr);
2117  void AddNewLine() { Add('\n'); }
2118  void AddNumber(uint32_t num);
2119  void AddNumber(uint64_t num);
2120  void AddBool(bool b) { Add(b ? "true" : "false"); }
2121  void AddNull() { Add("null"); }
2122  void AddString(const char* pStr);
2123 
2124 private:
2125  VmaVector< char, VmaStlAllocator<char> > m_Data;
2126 };
2127 
2128 void VmaStringBuilder::Add(const char* pStr)
2129 {
2130  const size_t strLen = strlen(pStr);
2131  if(strLen > 0)
2132  {
2133  const size_t oldCount = m_Data.size();
2134  m_Data.resize(oldCount + strLen);
2135  memcpy(m_Data.data() + oldCount, pStr, strLen);
2136  }
2137 }
2138 
2139 void VmaStringBuilder::AddNumber(uint32_t num)
2140 {
2141  char buf[11];
2142  VmaUint32ToStr(buf, sizeof(buf), num);
2143  Add(buf);
2144 }
2145 
2146 void VmaStringBuilder::AddNumber(uint64_t num)
2147 {
2148  char buf[21];
2149  VmaUint64ToStr(buf, sizeof(buf), num);
2150  Add(buf);
2151 }
2152 
2153 void VmaStringBuilder::AddString(const char* pStr)
2154 {
2155  Add('"');
2156  const size_t strLen = strlen(pStr);
2157  for(size_t i = 0; i < strLen; ++i)
2158  {
2159  char ch = pStr[i];
2160  if(ch == '\'')
2161  Add("\\\\");
2162  else if(ch == '"')
2163  Add("\\\"");
2164  else if(ch >= 32)
2165  Add(ch);
2166  else switch(ch)
2167  {
2168  case '\n':
2169  Add("\\n");
2170  break;
2171  case '\r':
2172  Add("\\r");
2173  break;
2174  case '\t':
2175  Add("\\t");
2176  break;
2177  default:
2178  VMA_ASSERT(0 && "Character not currently supported.");
2179  break;
2180  }
2181  }
2182  Add('"');
2183 }
2184 
2186 
2187 // Correspond to values of enum VmaSuballocationType.
2188 static const char* VMA_SUBALLOCATION_TYPE_NAMES[] = {
2189  "FREE",
2190  "UNKNOWN",
2191  "BUFFER",
2192  "IMAGE_UNKNOWN",
2193  "IMAGE_LINEAR",
2194  "IMAGE_OPTIMAL",
2195 };
2196 
2197 static void VmaPrintStatInfo(VmaStringBuilder& sb, const VmaStatInfo& stat)
2198 {
2199  sb.Add("{ \"Allocations\": ");
2200  sb.AddNumber(stat.AllocationCount);
2201  sb.Add(", \"Suballocations\": ");
2202  sb.AddNumber(stat.SuballocationCount);
2203  sb.Add(", \"UnusedRanges\": ");
2204  sb.AddNumber(stat.UnusedRangeCount);
2205  sb.Add(", \"UsedBytes\": ");
2206  sb.AddNumber(stat.UsedBytes);
2207  sb.Add(", \"UnusedBytes\": ");
2208  sb.AddNumber(stat.UnusedBytes);
2209  sb.Add(", \"SuballocationSize\": { \"Min\": ");
2210  sb.AddNumber(stat.SuballocationSizeMin);
2211  sb.Add(", \"Avg\": ");
2212  sb.AddNumber(stat.SuballocationSizeAvg);
2213  sb.Add(", \"Max\": ");
2214  sb.AddNumber(stat.SuballocationSizeMax);
2215  sb.Add(" }, \"UnusedRangeSize\": { \"Min\": ");
2216  sb.AddNumber(stat.UnusedRangeSizeMin);
2217  sb.Add(", \"Avg\": ");
2218  sb.AddNumber(stat.UnusedRangeSizeAvg);
2219  sb.Add(", \"Max\": ");
2220  sb.AddNumber(stat.UnusedRangeSizeMax);
2221  sb.Add(" } }");
2222 }
2223 
2224 #endif // #if VMA_STATS_STRING_ENABLED
2225 
2226 struct VmaSuballocationItemSizeLess
2227 {
2228  bool operator()(
2229  const VmaSuballocationList::iterator lhs,
2230  const VmaSuballocationList::iterator rhs) const
2231  {
2232  return lhs->size < rhs->size;
2233  }
2234  bool operator()(
2235  const VmaSuballocationList::iterator lhs,
2236  VkDeviceSize rhsSize) const
2237  {
2238  return lhs->size < rhsSize;
2239  }
2240 };
2241 
2242 VmaAllocation::VmaAllocation(VmaAllocator hAllocator) :
2243  m_hMemory(VK_NULL_HANDLE),
2244  m_Size(0),
2245  m_FreeCount(0),
2246  m_SumFreeSize(0),
2247  m_Suballocations(VmaStlAllocator<VmaSuballocation>(hAllocator->GetAllocationCallbacks())),
2248  m_FreeSuballocationsBySize(VmaStlAllocator<VmaSuballocationList::iterator>(hAllocator->GetAllocationCallbacks()))
2249 {
2250 }
2251 
2252 void VmaAllocation::Init(VkDeviceMemory newMemory, VkDeviceSize newSize)
2253 {
2254  VMA_ASSERT(m_hMemory == VK_NULL_HANDLE);
2255 
2256  m_hMemory = newMemory;
2257  m_Size = newSize;
2258  m_FreeCount = 1;
2259  m_SumFreeSize = newSize;
2260 
2261  m_Suballocations.clear();
2262  m_FreeSuballocationsBySize.clear();
2263 
2264  VmaSuballocation suballoc = {};
2265  suballoc.offset = 0;
2266  suballoc.size = newSize;
2267  suballoc.type = VMA_SUBALLOCATION_TYPE_FREE;
2268 
2269  m_Suballocations.push_back(suballoc);
2270  VmaSuballocationList::iterator suballocItem = m_Suballocations.end();
2271  --suballocItem;
2272  m_FreeSuballocationsBySize.push_back(suballocItem);
2273 }
2274 
2275 void VmaAllocation::Destroy(VmaAllocator allocator)
2276 {
2277  VMA_ASSERT(m_hMemory != VK_NULL_HANDLE);
2278  vkFreeMemory(allocator->m_hDevice, m_hMemory, allocator->GetAllocationCallbacks());
2279  m_hMemory = VK_NULL_HANDLE;
2280 }
2281 
2282 bool VmaAllocation::Validate() const
2283 {
2284  if((m_hMemory == VK_NULL_HANDLE) ||
2285  (m_Size == 0) ||
2286  m_Suballocations.empty())
2287  {
2288  return false;
2289  }
2290 
2291  // Expected offset of new suballocation as calculates from previous ones.
2292  VkDeviceSize calculatedOffset = 0;
2293  // Expected number of free suballocations as calculated from traversing their list.
2294  uint32_t calculatedFreeCount = 0;
2295  // Expected sum size of free suballocations as calculated from traversing their list.
2296  VkDeviceSize calculatedSumFreeSize = 0;
2297  // Expected number of free suballocations that should be registered in
2298  // m_FreeSuballocationsBySize calculated from traversing their list.
2299  size_t freeSuballocationsToRegister = 0;
2300  // True if previous visisted suballocation was free.
2301  bool prevFree = false;
2302 
2303  for(VmaSuballocationList::const_iterator suballocItem = m_Suballocations.cbegin();
2304  suballocItem != m_Suballocations.cend();
2305  ++suballocItem)
2306  {
2307  const VmaSuballocation& subAlloc = *suballocItem;
2308 
2309  // Actual offset of this suballocation doesn't match expected one.
2310  if(subAlloc.offset != calculatedOffset)
2311  return false;
2312 
2313  const bool currFree = (subAlloc.type == VMA_SUBALLOCATION_TYPE_FREE);
2314  // Two adjacent free suballocations are invalid. They should be merged.
2315  if(prevFree && currFree)
2316  return false;
2317  prevFree = currFree;
2318 
2319  if(currFree)
2320  {
2321  calculatedSumFreeSize += subAlloc.size;
2322  ++calculatedFreeCount;
2323  if(subAlloc.size >= VMA_MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER)
2324  ++freeSuballocationsToRegister;
2325  }
2326 
2327  calculatedOffset += subAlloc.size;
2328  }
2329 
2330  // Number of free suballocations registered in m_FreeSuballocationsBySize doesn't
2331  // match expected one.
2332  if(m_FreeSuballocationsBySize.size() != freeSuballocationsToRegister)
2333  return false;
2334 
2335  VkDeviceSize lastSize = 0;
2336  for(size_t i = 0; i < m_FreeSuballocationsBySize.size(); ++i)
2337  {
2338  VmaSuballocationList::iterator suballocItem = m_FreeSuballocationsBySize[i];
2339 
2340  // Only free suballocations can be registered in m_FreeSuballocationsBySize.
2341  if(suballocItem->type != VMA_SUBALLOCATION_TYPE_FREE)
2342  return false;
2343  // They must be sorted by size ascending.
2344  if(suballocItem->size < lastSize)
2345  return false;
2346 
2347  lastSize = suballocItem->size;
2348  }
2349 
2350  // Check if totals match calculacted values.
2351  return
2352  (calculatedOffset == m_Size) &&
2353  (calculatedSumFreeSize == m_SumFreeSize) &&
2354  (calculatedFreeCount == m_FreeCount);
2355 }
2356 
2357 /*
2358 How many suitable free suballocations to analyze before choosing best one.
2359 - Set to 1 to use First-Fit algorithm - first suitable free suballocation will
2360  be chosen.
2361 - Set to UINT32_MAX to use Best-Fit/Worst-Fit algorithm - all suitable free
2362  suballocations will be analized and best one will be chosen.
2363 - Any other value is also acceptable.
2364 */
2365 //static const uint32_t MAX_SUITABLE_SUBALLOCATIONS_TO_CHECK = 8;
2366 
2367 bool VmaAllocation::CreateAllocationRequest(
2368  VkDeviceSize bufferImageGranularity,
2369  VkDeviceSize allocSize,
2370  VkDeviceSize allocAlignment,
2371  VmaSuballocationType allocType,
2372  VmaAllocationRequest* pAllocationRequest)
2373 {
2374  VMA_ASSERT(allocSize > 0);
2375  VMA_ASSERT(allocType != VMA_SUBALLOCATION_TYPE_FREE);
2376  VMA_ASSERT(pAllocationRequest != VMA_NULL);
2377  VMA_HEAVY_ASSERT(Validate());
2378 
2379  // There is not enough total free space in this allocation to fullfill the request: Early return.
2380  if(m_SumFreeSize < allocSize)
2381  return false;
2382 
2383  // Old brute-force algorithm, linearly searching suballocations.
2384  /*
2385  uint32_t suitableSuballocationsFound = 0;
2386  for(VmaSuballocationList::iterator suballocItem = suballocations.Front();
2387  suballocItem != VMA_NULL &&
2388  suitableSuballocationsFound < MAX_SUITABLE_SUBALLOCATIONS_TO_CHECK;
2389  suballocItem = suballocItem->Next)
2390  {
2391  if(suballocItem->Value.type == VMA_SUBALLOCATION_TYPE_FREE)
2392  {
2393  VkDeviceSize offset = 0, cost = 0;
2394  if(CheckAllocation(bufferImageGranularity, allocSize, allocAlignment, allocType, suballocItem, &offset, &cost))
2395  {
2396  ++suitableSuballocationsFound;
2397  if(cost < costLimit)
2398  {
2399  pAllocationRequest->freeSuballocationItem = suballocItem;
2400  pAllocationRequest->offset = offset;
2401  pAllocationRequest->cost = cost;
2402  if(cost == 0)
2403  return true;
2404  costLimit = cost;
2405  betterSuballocationFound = true;
2406  }
2407  }
2408  }
2409  }
2410  */
2411 
2412  // New algorithm, efficiently searching freeSuballocationsBySize.
2413  const size_t freeSuballocCount = m_FreeSuballocationsBySize.size();
2414  if(freeSuballocCount > 0)
2415  {
2416  if(VMA_BEST_FIT)
2417  {
2418  // Find first free suballocation with size not less than allocSize.
2419  VmaSuballocationList::iterator* const it = VmaBinaryFindFirstNotLess(
2420  m_FreeSuballocationsBySize.data(),
2421  m_FreeSuballocationsBySize.data() + freeSuballocCount,
2422  allocSize,
2423  VmaSuballocationItemSizeLess());
2424  size_t index = it - m_FreeSuballocationsBySize.data();
2425  for(; index < freeSuballocCount; ++index)
2426  {
2427  VkDeviceSize offset = 0;
2428  const VmaSuballocationList::iterator suballocItem = m_FreeSuballocationsBySize[index];
2429  if(CheckAllocation(bufferImageGranularity, allocSize, allocAlignment, allocType, suballocItem, &offset))
2430  {
2431  pAllocationRequest->freeSuballocationItem = suballocItem;
2432  pAllocationRequest->offset = offset;
2433  return true;
2434  }
2435  }
2436  }
2437  else
2438  {
2439  // Search staring from biggest suballocations.
2440  for(size_t index = freeSuballocCount; index--; )
2441  {
2442  VkDeviceSize offset = 0;
2443  const VmaSuballocationList::iterator suballocItem = m_FreeSuballocationsBySize[index];
2444  if(CheckAllocation(bufferImageGranularity, allocSize, allocAlignment, allocType, suballocItem, &offset))
2445  {
2446  pAllocationRequest->freeSuballocationItem = suballocItem;
2447  pAllocationRequest->offset = offset;
2448  return true;
2449  }
2450  }
2451  }
2452  }
2453 
2454  return false;
2455 }
2456 
2457 bool VmaAllocation::CheckAllocation(
2458  VkDeviceSize bufferImageGranularity,
2459  VkDeviceSize allocSize,
2460  VkDeviceSize allocAlignment,
2461  VmaSuballocationType allocType,
2462  VmaSuballocationList::const_iterator freeSuballocItem,
2463  VkDeviceSize* pOffset) const
2464 {
2465  VMA_ASSERT(allocSize > 0);
2466  VMA_ASSERT(allocType != VMA_SUBALLOCATION_TYPE_FREE);
2467  VMA_ASSERT(freeSuballocItem != m_Suballocations.cend());
2468  VMA_ASSERT(pOffset != VMA_NULL);
2469 
2470  const VmaSuballocation& suballoc = *freeSuballocItem;
2471  VMA_ASSERT(suballoc.type == VMA_SUBALLOCATION_TYPE_FREE);
2472 
2473  // Size of this suballocation is too small for this request: Early return.
2474  if(suballoc.size < allocSize)
2475  return false;
2476 
2477  // Start from offset equal to beginning of this suballocation.
2478  *pOffset = suballoc.offset;
2479 
2480  // Apply VMA_DEBUG_MARGIN at the beginning.
2481  if((VMA_DEBUG_MARGIN > 0) && freeSuballocItem != m_Suballocations.cbegin())
2482  *pOffset += VMA_DEBUG_MARGIN;
2483 
2484  // Apply alignment.
2485  const VkDeviceSize alignment = VMA_MAX(allocAlignment, static_cast<VkDeviceSize>(VMA_DEBUG_ALIGNMENT));
2486  *pOffset = VmaAlignUp(*pOffset, alignment);
2487 
2488  // Check previous suballocations for BufferImageGranularity conflicts.
2489  // Make bigger alignment if necessary.
2490  if(bufferImageGranularity > 1)
2491  {
2492  bool bufferImageGranularityConflict = false;
2493  VmaSuballocationList::const_iterator prevSuballocItem = freeSuballocItem;
2494  while(prevSuballocItem != m_Suballocations.cbegin())
2495  {
2496  --prevSuballocItem;
2497  const VmaSuballocation& prevSuballoc = *prevSuballocItem;
2498  if(VmaBlocksOnSamePage(prevSuballoc.offset, prevSuballoc.size, *pOffset, bufferImageGranularity))
2499  {
2500  if(VmaIsBufferImageGranularityConflict(prevSuballoc.type, allocType))
2501  {
2502  bufferImageGranularityConflict = true;
2503  break;
2504  }
2505  }
2506  else
2507  // Already on previous page.
2508  break;
2509  }
2510  if(bufferImageGranularityConflict)
2511  *pOffset = VmaAlignUp(*pOffset, bufferImageGranularity);
2512  }
2513 
2514  // Calculate padding at the beginning based on current offset.
2515  const VkDeviceSize paddingBegin = *pOffset - suballoc.offset;
2516 
2517  // Calculate required margin at the end if this is not last suballocation.
2518  VmaSuballocationList::const_iterator next = freeSuballocItem;
2519  ++next;
2520  const VkDeviceSize requiredEndMargin =
2521  (next != m_Suballocations.cend()) ? VMA_DEBUG_MARGIN : 0;
2522 
2523  // Fail if requested size plus margin before and after is bigger than size of this suballocation.
2524  if(paddingBegin + allocSize + requiredEndMargin > suballoc.size)
2525  return false;
2526 
2527  // Check next suballocations for BufferImageGranularity conflicts.
2528  // If conflict exists, allocation cannot be made here.
2529  if(bufferImageGranularity > 1)
2530  {
2531  VmaSuballocationList::const_iterator nextSuballocItem = freeSuballocItem;
2532  ++nextSuballocItem;
2533  while(nextSuballocItem != m_Suballocations.cend())
2534  {
2535  const VmaSuballocation& nextSuballoc = *nextSuballocItem;
2536  if(VmaBlocksOnSamePage(*pOffset, allocSize, nextSuballoc.offset, bufferImageGranularity))
2537  {
2538  if(VmaIsBufferImageGranularityConflict(allocType, nextSuballoc.type))
2539  return false;
2540  }
2541  else
2542  // Already on next page.
2543  break;
2544  ++nextSuballocItem;
2545  }
2546  }
2547 
2548  // All tests passed: Success. pOffset is already filled.
2549  return true;
2550 }
2551 
2552 bool VmaAllocation::IsEmpty() const
2553 {
2554  return (m_Suballocations.size() == 1) && (m_FreeCount == 1);
2555 }
2556 
2557 void VmaAllocation::Alloc(
2558  const VmaAllocationRequest& request,
2559  VmaSuballocationType type,
2560  VkDeviceSize allocSize)
2561 {
2562  VMA_ASSERT(request.freeSuballocationItem != m_Suballocations.end());
2563  VmaSuballocation& suballoc = *request.freeSuballocationItem;
2564  // Given suballocation is a free block.
2565  VMA_ASSERT(suballoc.type == VMA_SUBALLOCATION_TYPE_FREE);
2566  // Given offset is inside this suballocation.
2567  VMA_ASSERT(request.offset >= suballoc.offset);
2568  const VkDeviceSize paddingBegin = request.offset - suballoc.offset;
2569  VMA_ASSERT(suballoc.size >= paddingBegin + allocSize);
2570  const VkDeviceSize paddingEnd = suballoc.size - paddingBegin - allocSize;
2571 
2572  // Unregister this free suballocation from m_FreeSuballocationsBySize and update
2573  // it to become used.
2574  UnregisterFreeSuballocation(request.freeSuballocationItem);
2575 
2576  suballoc.offset = request.offset;
2577  suballoc.size = allocSize;
2578  suballoc.type = type;
2579 
2580  // If there are any free bytes remaining at the end, insert new free suballocation after current one.
2581  if(paddingEnd)
2582  {
2583  VmaSuballocation paddingSuballoc = {};
2584  paddingSuballoc.offset = request.offset + allocSize;
2585  paddingSuballoc.size = paddingEnd;
2586  paddingSuballoc.type = VMA_SUBALLOCATION_TYPE_FREE;
2587  VmaSuballocationList::iterator next = request.freeSuballocationItem;
2588  ++next;
2589  const VmaSuballocationList::iterator paddingEndItem =
2590  m_Suballocations.insert(next, paddingSuballoc);
2591  RegisterFreeSuballocation(paddingEndItem);
2592  }
2593 
2594  // If there are any free bytes remaining at the beginning, insert new free suballocation before current one.
2595  if(paddingBegin)
2596  {
2597  VmaSuballocation paddingSuballoc = {};
2598  paddingSuballoc.offset = request.offset - paddingBegin;
2599  paddingSuballoc.size = paddingBegin;
2600  paddingSuballoc.type = VMA_SUBALLOCATION_TYPE_FREE;
2601  const VmaSuballocationList::iterator paddingBeginItem =
2602  m_Suballocations.insert(request.freeSuballocationItem, paddingSuballoc);
2603  RegisterFreeSuballocation(paddingBeginItem);
2604  }
2605 
2606  // Update totals.
2607  m_FreeCount = m_FreeCount - 1;
2608  if(paddingBegin > 0)
2609  ++m_FreeCount;
2610  if(paddingEnd > 0)
2611  ++m_FreeCount;
2612  m_SumFreeSize -= allocSize;
2613 }
2614 
2615 void VmaAllocation::FreeSuballocation(VmaSuballocationList::iterator suballocItem)
2616 {
2617  // Change this suballocation to be marked as free.
2618  VmaSuballocation& suballoc = *suballocItem;
2619  suballoc.type = VMA_SUBALLOCATION_TYPE_FREE;
2620 
2621  // Update totals.
2622  ++m_FreeCount;
2623  m_SumFreeSize += suballoc.size;
2624 
2625  // Merge with previous and/or next suballocation if it's also free.
2626  bool mergeWithNext = false;
2627  bool mergeWithPrev = false;
2628 
2629  VmaSuballocationList::iterator nextItem = suballocItem;
2630  ++nextItem;
2631  if((nextItem != m_Suballocations.end()) && (nextItem->type == VMA_SUBALLOCATION_TYPE_FREE))
2632  mergeWithNext = true;
2633 
2634  VmaSuballocationList::iterator prevItem = suballocItem;
2635  if(suballocItem != m_Suballocations.begin())
2636  {
2637  --prevItem;
2638  if(prevItem->type == VMA_SUBALLOCATION_TYPE_FREE)
2639  mergeWithPrev = true;
2640  }
2641 
2642  if(mergeWithNext)
2643  {
2644  UnregisterFreeSuballocation(nextItem);
2645  MergeFreeWithNext(suballocItem);
2646  }
2647 
2648  if(mergeWithPrev)
2649  {
2650  UnregisterFreeSuballocation(prevItem);
2651  MergeFreeWithNext(prevItem);
2652  RegisterFreeSuballocation(prevItem);
2653  }
2654  else
2655  RegisterFreeSuballocation(suballocItem);
2656 }
2657 
2658 void VmaAllocation::Free(const VkMappedMemoryRange* pMemory)
2659 {
2660  for(VmaSuballocationList::iterator suballocItem = m_Suballocations.begin();
2661  suballocItem != m_Suballocations.end();
2662  ++suballocItem)
2663  {
2664  VmaSuballocation& suballoc = *suballocItem;
2665  if(suballoc.offset == pMemory->offset)
2666  {
2667  FreeSuballocation(suballocItem);
2668  VMA_HEAVY_ASSERT(Validate());
2669  return;
2670  }
2671  }
2672  VMA_ASSERT(0 && "Not found!");
2673 }
2674 
2675 #if VMA_STATS_STRING_ENABLED
2676 
2677 void VmaAllocation::PrintDetailedMap(class VmaStringBuilder& sb) const
2678 {
2679  sb.Add("{\n\t\t\t\"Bytes\": ");
2680  sb.AddNumber(m_Size);
2681  sb.Add(",\n\t\t\t\"FreeBytes\": ");
2682  sb.AddNumber(m_SumFreeSize);
2683  sb.Add(",\n\t\t\t\"Suballocations\": ");
2684  sb.AddNumber(m_Suballocations.size());
2685  sb.Add(",\n\t\t\t\"FreeSuballocations\": ");
2686  sb.AddNumber(m_FreeCount);
2687  sb.Add(",\n\t\t\t\"SuballocationList\": [");
2688 
2689  size_t i = 0;
2690  for(VmaSuballocationList::const_iterator suballocItem = m_Suballocations.cbegin();
2691  suballocItem != m_Suballocations.cend();
2692  ++suballocItem, ++i)
2693  {
2694  if(i > 0)
2695  sb.Add(",\n\t\t\t\t{ \"Type\": ");
2696  else
2697  sb.Add("\n\t\t\t\t{ \"Type\": ");
2698  sb.AddString(VMA_SUBALLOCATION_TYPE_NAMES[suballocItem->type]);
2699  sb.Add(", \"Size\": ");
2700  sb.AddNumber(suballocItem->size);
2701  sb.Add(", \"Offset\": ");
2702  sb.AddNumber(suballocItem->offset);
2703  sb.Add(" }");
2704  }
2705 
2706  sb.Add("\n\t\t\t]\n\t\t}");
2707 }
2708 
2709 #endif // #if VMA_STATS_STRING_ENABLED
2710 
2711 void VmaAllocation::MergeFreeWithNext(VmaSuballocationList::iterator item)
2712 {
2713  VMA_ASSERT(item != m_Suballocations.end());
2714  VMA_ASSERT(item->type == VMA_SUBALLOCATION_TYPE_FREE);
2715 
2716  VmaSuballocationList::iterator nextItem = item;
2717  ++nextItem;
2718  VMA_ASSERT(nextItem != m_Suballocations.end());
2719  VMA_ASSERT(nextItem->type == VMA_SUBALLOCATION_TYPE_FREE);
2720 
2721  item->size += nextItem->size;
2722  --m_FreeCount;
2723  m_Suballocations.erase(nextItem);
2724 }
2725 
2726 void VmaAllocation::RegisterFreeSuballocation(VmaSuballocationList::iterator item)
2727 {
2728  VMA_ASSERT(item->type == VMA_SUBALLOCATION_TYPE_FREE);
2729  VMA_ASSERT(item->size > 0);
2730 
2731  if(item->size >= VMA_MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER)
2732  {
2733  if(m_FreeSuballocationsBySize.empty())
2734  m_FreeSuballocationsBySize.push_back(item);
2735  else
2736  {
2737  VmaSuballocationList::iterator* const it = VmaBinaryFindFirstNotLess(
2738  m_FreeSuballocationsBySize.data(),
2739  m_FreeSuballocationsBySize.data() + m_FreeSuballocationsBySize.size(),
2740  item,
2741  VmaSuballocationItemSizeLess());
2742  size_t index = it - m_FreeSuballocationsBySize.data();
2743  VectorInsert(m_FreeSuballocationsBySize, index, item);
2744  }
2745  }
2746 }
2747 
2748 void VmaAllocation::UnregisterFreeSuballocation(VmaSuballocationList::iterator item)
2749 {
2750  VMA_ASSERT(item->type == VMA_SUBALLOCATION_TYPE_FREE);
2751  VMA_ASSERT(item->size > 0);
2752 
2753  if(item->size >= VMA_MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER)
2754  {
2755  VmaSuballocationList::iterator* const it = VmaBinaryFindFirstNotLess(
2756  m_FreeSuballocationsBySize.data(),
2757  m_FreeSuballocationsBySize.data() + m_FreeSuballocationsBySize.size(),
2758  item,
2759  VmaSuballocationItemSizeLess());
2760  for(size_t index = it - m_FreeSuballocationsBySize.data();
2761  index < m_FreeSuballocationsBySize.size();
2762  ++index)
2763  {
2764  if(m_FreeSuballocationsBySize[index] == item)
2765  {
2766  VectorRemove(m_FreeSuballocationsBySize, index);
2767  return;
2768  }
2769  VMA_ASSERT((m_FreeSuballocationsBySize[index]->size == item->size) && "Not found.");
2770  }
2771  VMA_ASSERT(0 && "Not found.");
2772  }
2773 }
2774 
2775 static void InitStatInfo(VmaStatInfo& outInfo)
2776 {
2777  memset(&outInfo, 0, sizeof(outInfo));
2778  outInfo.SuballocationSizeMin = UINT64_MAX;
2779  outInfo.UnusedRangeSizeMin = UINT64_MAX;
2780 }
2781 
2782 static void CalcAllocationStatInfo(VmaStatInfo& outInfo, const VmaAllocation& alloc)
2783 {
2784  outInfo.AllocationCount = 1;
2785 
2786  const uint32_t rangeCount = (uint32_t)alloc.m_Suballocations.size();
2787  outInfo.SuballocationCount = rangeCount - alloc.m_FreeCount;
2788  outInfo.UnusedRangeCount = alloc.m_FreeCount;
2789 
2790  outInfo.UnusedBytes = alloc.m_SumFreeSize;
2791  outInfo.UsedBytes = alloc.m_Size - outInfo.UnusedBytes;
2792 
2793  outInfo.SuballocationSizeMin = UINT64_MAX;
2794  outInfo.SuballocationSizeMax = 0;
2795  outInfo.UnusedRangeSizeMin = UINT64_MAX;
2796  outInfo.UnusedRangeSizeMax = 0;
2797 
2798  for(VmaSuballocationList::const_iterator suballocItem = alloc.m_Suballocations.cbegin();
2799  suballocItem != alloc.m_Suballocations.cend();
2800  ++suballocItem)
2801  {
2802  const VmaSuballocation& suballoc = *suballocItem;
2803  if(suballoc.type != VMA_SUBALLOCATION_TYPE_FREE)
2804  {
2805  outInfo.SuballocationSizeMin = VMA_MIN(outInfo.SuballocationSizeMin, suballoc.size);
2806  outInfo.SuballocationSizeMax = VMA_MAX(outInfo.SuballocationSizeMax, suballoc.size);
2807  }
2808  else
2809  {
2810  outInfo.UnusedRangeSizeMin = VMA_MIN(outInfo.UnusedRangeSizeMin, suballoc.size);
2811  outInfo.UnusedRangeSizeMax = VMA_MAX(outInfo.UnusedRangeSizeMax, suballoc.size);
2812  }
2813  }
2814 }
2815 
2816 // Adds statistics srcInfo into inoutInfo, like: inoutInfo += srcInfo.
2817 static void VmaAddStatInfo(VmaStatInfo& inoutInfo, const VmaStatInfo& srcInfo)
2818 {
2819  inoutInfo.AllocationCount += srcInfo.AllocationCount;
2820  inoutInfo.SuballocationCount += srcInfo.SuballocationCount;
2821  inoutInfo.UnusedRangeCount += srcInfo.UnusedRangeCount;
2822  inoutInfo.UsedBytes += srcInfo.UsedBytes;
2823  inoutInfo.UnusedBytes += srcInfo.UnusedBytes;
2824  inoutInfo.SuballocationSizeMin = VMA_MIN(inoutInfo.SuballocationSizeMin, srcInfo.SuballocationSizeMin);
2825  inoutInfo.SuballocationSizeMax = VMA_MAX(inoutInfo.SuballocationSizeMax, srcInfo.SuballocationSizeMax);
2826  inoutInfo.UnusedRangeSizeMin = VMA_MIN(inoutInfo.UnusedRangeSizeMin, srcInfo.UnusedRangeSizeMin);
2827  inoutInfo.UnusedRangeSizeMax = VMA_MAX(inoutInfo.UnusedRangeSizeMax, srcInfo.UnusedRangeSizeMax);
2828 }
2829 
2830 static void VmaPostprocessCalcStatInfo(VmaStatInfo& inoutInfo)
2831 {
2832  inoutInfo.SuballocationSizeAvg = (inoutInfo.SuballocationCount > 0) ?
2833  VmaRoundDiv<VkDeviceSize>(inoutInfo.UsedBytes, inoutInfo.SuballocationCount) : 0;
2834  inoutInfo.UnusedRangeSizeAvg = (inoutInfo.UnusedRangeCount > 0) ?
2835  VmaRoundDiv<VkDeviceSize>(inoutInfo.UnusedBytes, inoutInfo.UnusedRangeCount) : 0;
2836 }
2837 
2838 VmaAllocationVector::VmaAllocationVector(VmaAllocator hAllocator) :
2839  m_hAllocator(hAllocator),
2840  m_Allocations(VmaStlAllocator<VmaAllocation*>(hAllocator->GetAllocationCallbacks()))
2841 {
2842 }
2843 
2844 VmaAllocationVector::~VmaAllocationVector()
2845 {
2846  for(size_t i = m_Allocations.size(); i--; )
2847  {
2848  m_Allocations[i]->Destroy(m_hAllocator);
2849  vma_delete(m_hAllocator, m_Allocations[i]);
2850  }
2851 }
2852 
2853 size_t VmaAllocationVector::Free(const VkMappedMemoryRange* pMemory)
2854 {
2855  for(uint32_t allocIndex = 0; allocIndex < m_Allocations.size(); ++allocIndex)
2856  {
2857  VmaAllocation* const pAlloc = m_Allocations[allocIndex];
2858  VMA_ASSERT(pAlloc);
2859  if(pAlloc->m_hMemory == pMemory->memory)
2860  {
2861  pAlloc->Free(pMemory);
2862  VMA_HEAVY_ASSERT(pAlloc->Validate());
2863  return allocIndex;
2864  }
2865  }
2866 
2867  return (size_t)-1;
2868 }
2869 
2870 void VmaAllocationVector::IncrementallySortAllocations()
2871 {
2872  // Bubble sort only until first swap.
2873  for(size_t i = 1; i < m_Allocations.size(); ++i)
2874  {
2875  if(m_Allocations[i - 1]->m_SumFreeSize > m_Allocations[i]->m_SumFreeSize)
2876  {
2877  VMA_SWAP(m_Allocations[i - 1], m_Allocations[i]);
2878  return;
2879  }
2880  }
2881 }
2882 
2883 #if VMA_STATS_STRING_ENABLED
2884 
2885 void VmaAllocationVector::PrintDetailedMap(class VmaStringBuilder& sb) const
2886 {
2887  for(size_t i = 0; i < m_Allocations.size(); ++i)
2888  {
2889  if(i > 0)
2890  sb.Add(",\n\t\t");
2891  else
2892  sb.Add("\n\t\t");
2893  m_Allocations[i]->PrintDetailedMap(sb);
2894  }
2895 }
2896 
2897 #endif // #if VMA_STATS_STRING_ENABLED
2898 
2899 void VmaAllocationVector::AddStats(VmaStats* pStats, uint32_t memTypeIndex, uint32_t memHeapIndex) const
2900 {
2901  for(uint32_t allocIndex = 0; allocIndex < m_Allocations.size(); ++allocIndex)
2902  {
2903  const VmaAllocation* const pAlloc = m_Allocations[allocIndex];
2904  VMA_ASSERT(pAlloc);
2905  VMA_HEAVY_ASSERT(pAlloc->Validate());
2906  VmaStatInfo allocationStatInfo;
2907  CalcAllocationStatInfo(allocationStatInfo, *pAlloc);
2908  VmaAddStatInfo(pStats->total, allocationStatInfo);
2909  VmaAddStatInfo(pStats->memoryType[memTypeIndex], allocationStatInfo);
2910  VmaAddStatInfo(pStats->memoryHeap[memHeapIndex], allocationStatInfo);
2911  }
2912 }
2913 
2915 // VmaAllocator_T
2916 
2917 VmaAllocator_T::VmaAllocator_T(const VmaAllocatorCreateInfo* pCreateInfo) :
2918  m_PhysicalDevice(pCreateInfo->physicalDevice),
2919  m_hDevice(pCreateInfo->device),
2920  m_AllocationCallbacksSpecified(pCreateInfo->pAllocationCallbacks != VMA_NULL),
2921  m_AllocationCallbacks(pCreateInfo->pAllocationCallbacks ?
2922  *pCreateInfo->pAllocationCallbacks : VmaEmptyAllocationCallbacks),
2923  m_PreferredLargeHeapBlockSize(0),
2924  m_PreferredSmallHeapBlockSize(0),
2925  m_BufferToMemoryMap(VmaStlAllocator< VmaPair<VkBuffer, VkMappedMemoryRange> >(pCreateInfo->pAllocationCallbacks)),
2926  m_ImageToMemoryMap(VmaStlAllocator< VmaPair<VkImage, VkMappedMemoryRange> >(pCreateInfo->pAllocationCallbacks))
2927 {
2928  VMA_ASSERT(pCreateInfo->physicalDevice && pCreateInfo->device);
2929 
2930  memset(&m_MemProps, 0, sizeof(m_MemProps));
2931  memset(&m_PhysicalDeviceProperties, 0, sizeof(m_PhysicalDeviceProperties));
2932 
2933  memset(&m_pAllocations, 0, sizeof(m_pAllocations));
2934  memset(&m_HasEmptyAllocation, 0, sizeof(m_HasEmptyAllocation));
2935  memset(&m_pOwnAllocations, 0, sizeof(m_pOwnAllocations));
2936 
2937  m_PreferredLargeHeapBlockSize = (pCreateInfo->preferredLargeHeapBlockSize != 0) ?
2938  pCreateInfo->preferredLargeHeapBlockSize : static_cast<VkDeviceSize>(VMA_DEFAULT_LARGE_HEAP_BLOCK_SIZE);
2939  m_PreferredSmallHeapBlockSize = (pCreateInfo->preferredSmallHeapBlockSize != 0) ?
2940  pCreateInfo->preferredSmallHeapBlockSize : static_cast<VkDeviceSize>(VMA_DEFAULT_SMALL_HEAP_BLOCK_SIZE);
2941 
2942  vkGetPhysicalDeviceProperties(m_PhysicalDevice, &m_PhysicalDeviceProperties);
2943  vkGetPhysicalDeviceMemoryProperties(m_PhysicalDevice, &m_MemProps);
2944 
2945  for(size_t i = 0; i < GetMemoryTypeCount(); ++i)
2946  {
2947  m_pAllocations[i] = vma_new(this, VmaAllocationVector)(this);
2948  m_pOwnAllocations[i] = vma_new(this, OwnAllocationVectorType)(VmaStlAllocator<VmaOwnAllocation>(GetAllocationCallbacks()));
2949  }
2950 }
2951 
2952 VmaAllocator_T::~VmaAllocator_T()
2953 {
2954  for(VMA_MAP_TYPE(VkImage, VkMappedMemoryRange)::iterator it = m_ImageToMemoryMap.begin();
2955  it != m_ImageToMemoryMap.end();
2956  ++it)
2957  {
2958  vkDestroyImage(m_hDevice, it->first, GetAllocationCallbacks());
2959  }
2960 
2961  for(VMA_MAP_TYPE(VkBuffer, VkMappedMemoryRange)::iterator it = m_BufferToMemoryMap.begin();
2962  it != m_BufferToMemoryMap.end();
2963  ++it)
2964  {
2965  vkDestroyBuffer(m_hDevice, it->first, GetAllocationCallbacks());
2966  }
2967 
2968  for(uint32_t typeIndex = 0; typeIndex < GetMemoryTypeCount(); ++typeIndex)
2969  {
2970  OwnAllocationVectorType* pOwnAllocations = m_pOwnAllocations[typeIndex];
2971  VMA_ASSERT(pOwnAllocations);
2972  for(size_t allocationIndex = 0; allocationIndex < pOwnAllocations->size(); ++allocationIndex)
2973  {
2974  const VmaOwnAllocation& ownAlloc = (*pOwnAllocations)[allocationIndex];
2975  vkFreeMemory(m_hDevice, ownAlloc.m_hMemory, GetAllocationCallbacks());
2976  }
2977  }
2978 
2979  for(size_t i = GetMemoryTypeCount(); i--; )
2980  {
2981  vma_delete(this, m_pAllocations[i]);
2982  vma_delete(this, m_pOwnAllocations[i]);
2983  }
2984 }
2985 
2986 VkDeviceSize VmaAllocator_T::GetPreferredBlockSize(uint32_t memTypeIndex) const
2987 {
2988  VkDeviceSize heapSize = m_MemProps.memoryHeaps[m_MemProps.memoryTypes[memTypeIndex].heapIndex].size;
2989  return (heapSize <= VMA_SMALL_HEAP_MAX_SIZE) ?
2990  m_PreferredSmallHeapBlockSize : m_PreferredLargeHeapBlockSize;
2991 }
2992 
2993 VkResult VmaAllocator_T::AllocateMemoryOfType(
2994  const VkMemoryRequirements& vkMemReq,
2995  const VmaMemoryRequirements& vmaMemReq,
2996  uint32_t memTypeIndex,
2997  VmaSuballocationType suballocType,
2998  VkMappedMemoryRange* pMemory)
2999 {
3000  VMA_DEBUG_LOG(" AllocateMemory: MemoryTypeIndex=%u, Size=%llu", memTypeIndex, vkMemReq.size);
3001 
3002  pMemory->sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE;
3003  pMemory->pNext = VMA_NULL;
3004  pMemory->size = vkMemReq.size;
3005 
3006  const VkDeviceSize preferredBlockSize = GetPreferredBlockSize(memTypeIndex);
3007  // Heuristics: Allocate own memory if requested size if greater than half of preferred block size.
3008  const bool ownMemory =
3009  vmaMemReq.ownMemory ||
3010  VMA_DEBUG_ALWAYS_OWN_MEMORY ||
3011  ((vmaMemReq.neverAllocate == false) && (vkMemReq.size > preferredBlockSize / 2));
3012 
3013  if(ownMemory)
3014  {
3015  if(vmaMemReq.neverAllocate)
3016  return VK_ERROR_OUT_OF_DEVICE_MEMORY;
3017  else
3018  return AllocateOwnMemory(vkMemReq.size, suballocType, memTypeIndex, pMemory);
3019  }
3020  else
3021  {
3022  VmaMutexLock lock(m_AllocationsMutex[memTypeIndex]);
3023  VmaAllocationVector* const allocationVector = m_pAllocations[memTypeIndex];
3024  VMA_ASSERT(allocationVector);
3025 
3026  // 1. Search existing allocations.
3027  // Forward order - prefer blocks with smallest amount of free space.
3028  for(size_t allocIndex = 0; allocIndex < allocationVector->m_Allocations.size(); ++allocIndex )
3029  {
3030  VmaAllocation* const pAlloc = allocationVector->m_Allocations[allocIndex];
3031  VMA_ASSERT(pAlloc);
3032  VmaAllocationRequest allocRequest = {};
3033  // Check if can allocate from pAlloc.
3034  if(pAlloc->CreateAllocationRequest(
3035  GetBufferImageGranularity(),
3036  vkMemReq.size,
3037  vkMemReq.alignment,
3038  suballocType,
3039  &allocRequest))
3040  {
3041  // We no longer have an empty Allocation.
3042  if(pAlloc->IsEmpty())
3043  m_HasEmptyAllocation[memTypeIndex] = false;
3044  // Allocate from this pAlloc.
3045  pAlloc->Alloc(allocRequest, suballocType, vkMemReq.size);
3046  // Return VkDeviceMemory and offset (size already filled above).
3047  pMemory->memory = pAlloc->m_hMemory;
3048  pMemory->offset = allocRequest.offset;
3049  VMA_HEAVY_ASSERT(pAlloc->Validate());
3050  VMA_DEBUG_LOG(" Returned from existing allocation #%u", (uint32_t)allocIndex);
3051  return VK_SUCCESS;
3052  }
3053  }
3054 
3055  // 2. Create new Allocation.
3056  if(vmaMemReq.neverAllocate)
3057  {
3058  VMA_DEBUG_LOG(" FAILED due to VmaMemoryRequirements::neverAllocate");
3059  return VK_ERROR_OUT_OF_DEVICE_MEMORY;
3060  }
3061  else
3062  {
3063  // Start with full preferredBlockSize.
3064  VkMemoryAllocateInfo allocInfo = { VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO };
3065  allocInfo.memoryTypeIndex = memTypeIndex;
3066  allocInfo.allocationSize = preferredBlockSize;
3067  VkDeviceMemory mem = VK_NULL_HANDLE;
3068  VkResult res = vkAllocateMemory(m_hDevice, &allocInfo, GetAllocationCallbacks(), &mem);
3069  if(res < 0)
3070  {
3071  // 3. Try half the size.
3072  allocInfo.allocationSize /= 2;
3073  if(allocInfo.allocationSize >= vkMemReq.size)
3074  {
3075  res = vkAllocateMemory(m_hDevice, &allocInfo, GetAllocationCallbacks(), &mem);
3076  if(res < 0)
3077  {
3078  // 4. Try quarter the size.
3079  allocInfo.allocationSize /= 2;
3080  if(allocInfo.allocationSize >= vkMemReq.size)
3081  {
3082  res = vkAllocateMemory(m_hDevice, &allocInfo, GetAllocationCallbacks(), &mem);
3083  }
3084  }
3085  }
3086  }
3087  if(res < 0)
3088  {
3089  // 5. Try OwnAlloc.
3090  res = AllocateOwnMemory(vkMemReq.size, suballocType, memTypeIndex, pMemory);
3091  if(res == VK_SUCCESS)
3092  {
3093  // Succeeded: AllocateOwnMemory function already filld pMemory, nothing more to do here.
3094  VMA_DEBUG_LOG(" Allocated as OwnMemory");
3095  return VK_SUCCESS;
3096  }
3097  else
3098  {
3099  // Everything failed: Return error code.
3100  VMA_DEBUG_LOG(" vkAllocateMemory FAILED");
3101  return res;
3102  }
3103  }
3104 
3105  // New VkDeviceMemory successfully created. Create new Allocation for it.
3106  VmaAllocation* const pAlloc = vma_new(this, VmaAllocation)(this);
3107  pAlloc->Init(mem, allocInfo.allocationSize);
3108 
3109  allocationVector->m_Allocations.push_back(pAlloc);
3110 
3111  // Allocate from pAlloc. Because it is empty, allocRequest can be trivially filled.
3112  VmaAllocationRequest allocRequest = {};
3113  allocRequest.freeSuballocationItem = pAlloc->m_Suballocations.begin();
3114  allocRequest.offset = 0;
3115  pAlloc->Alloc(allocRequest, suballocType, vkMemReq.size);
3116  pMemory->memory = mem;
3117  pMemory->offset = allocRequest.offset;
3118  VMA_HEAVY_ASSERT(pAlloc->Validate());
3119  VMA_DEBUG_LOG(" Created new allocation Size=%llu", allocInfo.allocationSize);
3120  return VK_SUCCESS;
3121  }
3122  }
3123 }
3124 
3125 VkResult VmaAllocator_T::AllocateOwnMemory(
3126  VkDeviceSize size,
3127  VmaSuballocationType suballocType,
3128  uint32_t memTypeIndex,
3129  VkMappedMemoryRange* pMemory)
3130 {
3131  VkMemoryAllocateInfo allocInfo = { VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO };
3132  allocInfo.memoryTypeIndex = memTypeIndex;
3133  allocInfo.allocationSize = size;
3134 
3135  // Allocate VkDeviceMemory.
3136  VmaOwnAllocation ownAlloc = {};
3137  ownAlloc.m_Size = size;
3138  ownAlloc.m_Type = suballocType;
3139  VkResult res = vkAllocateMemory(m_hDevice, &allocInfo, GetAllocationCallbacks(), &ownAlloc.m_hMemory);
3140  if(res < 0)
3141  {
3142  VMA_DEBUG_LOG(" vkAllocateMemory FAILED");
3143  return res;
3144  }
3145 
3146  // Register it in m_pOwnAllocations.
3147  VmaMutexLock lock(m_OwnAllocationsMutex[memTypeIndex]);
3148  OwnAllocationVectorType* ownAllocations = m_pOwnAllocations[memTypeIndex];
3149  VMA_ASSERT(ownAllocations);
3150  VmaOwnAllocation* const pOwnAllocationsBeg = ownAllocations->data();
3151  VmaOwnAllocation* const pOwnAllocationsEnd = pOwnAllocationsBeg + ownAllocations->size();
3152  const size_t indexToInsert = VmaBinaryFindFirstNotLess(
3153  pOwnAllocationsBeg,
3154  pOwnAllocationsEnd,
3155  ownAlloc,
3156  VmaOwnAllocationMemoryHandleLess()) - pOwnAllocationsBeg;
3157  VectorInsert(*ownAllocations, indexToInsert, ownAlloc);
3158 
3159  // Return parameters of the allocation.
3160  pMemory->sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE;
3161  pMemory->pNext = VMA_NULL;
3162  pMemory->memory = ownAlloc.m_hMemory;
3163  pMemory->offset = 0;
3164  pMemory->size = size;
3165 
3166  VMA_DEBUG_LOG(" Allocated OwnMemory MemoryTypeIndex=#%u", memTypeIndex);
3167 
3168  return VK_SUCCESS;
3169 }
3170 
3171 VkResult VmaAllocator_T::AllocateMemory(
3172  const VkMemoryRequirements& vkMemReq,
3173  const VmaMemoryRequirements& vmaMemReq,
3174  VmaSuballocationType suballocType,
3175  VkMappedMemoryRange* pMemory,
3176  uint32_t* pMemoryTypeIndex)
3177 {
3178  if(vmaMemReq.ownMemory && vmaMemReq.neverAllocate)
3179  {
3180  VMA_ASSERT(0 && "Specifying VmaMemoryRequirements::ownMemory && VmaMemoryRequirements::neverAllocate makes no sense.");
3181  return VK_ERROR_OUT_OF_DEVICE_MEMORY;
3182  }
3183 
3184  // Bit mask of memory Vulkan types acceptable for this allocation.
3185  uint32_t memoryTypeBits = vkMemReq.memoryTypeBits;
3186  uint32_t memTypeIndex = UINT32_MAX;
3187  VkResult res = vmaFindMemoryTypeIndex(this, memoryTypeBits, &vmaMemReq, &memTypeIndex);
3188  if(res == VK_SUCCESS)
3189  {
3190  res = AllocateMemoryOfType(vkMemReq, vmaMemReq, memTypeIndex, suballocType, pMemory);
3191  // Succeeded on first try.
3192  if(res == VK_SUCCESS)
3193  {
3194  if(pMemoryTypeIndex != VMA_NULL)
3195  *pMemoryTypeIndex = memTypeIndex;
3196  return res;
3197  }
3198  // Allocation from this memory type failed. Try other compatible memory types.
3199  else
3200  {
3201  for(;;)
3202  {
3203  // Remove old memTypeIndex from list of possibilities.
3204  memoryTypeBits &= ~(1u << memTypeIndex);
3205  // Find alternative memTypeIndex.
3206  res = vmaFindMemoryTypeIndex(this, memoryTypeBits, &vmaMemReq, &memTypeIndex);
3207  if(res == VK_SUCCESS)
3208  {
3209  res = AllocateMemoryOfType(vkMemReq, vmaMemReq, memTypeIndex, suballocType, pMemory);
3210  // Allocation from this alternative memory type succeeded.
3211  if(res == VK_SUCCESS)
3212  {
3213  if(pMemoryTypeIndex != VMA_NULL)
3214  *pMemoryTypeIndex = memTypeIndex;
3215  return res;
3216  }
3217  // else: Allocation from this memory type failed. Try next one - next loop iteration.
3218  }
3219  // No other matching memory type index could be found.
3220  else
3221  // Not returning res, which is VK_ERROR_FEATURE_NOT_PRESENT, because we already failed to allocate once.
3222  return VK_ERROR_OUT_OF_DEVICE_MEMORY;
3223  }
3224  }
3225  }
3226  // Can't find any single memory type maching requirements. res is VK_ERROR_FEATURE_NOT_PRESENT.
3227  else
3228  return res;
3229 }
3230 
3231 void VmaAllocator_T::FreeMemory(const VkMappedMemoryRange* pMemory)
3232 {
3233  uint32_t memTypeIndex = 0;
3234  bool found = false;
3235  VmaAllocation* allocationToDelete = VMA_NULL;
3236  // Check all memory types because we don't know which one does pMemory come from.
3237  for(; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex)
3238  {
3239  VmaMutexLock lock(m_AllocationsMutex[memTypeIndex]);
3240  VmaAllocationVector* const pAllocationVector = m_pAllocations[memTypeIndex];
3241  VMA_ASSERT(pAllocationVector);
3242  // Try to free pMemory from pAllocationVector.
3243  const size_t allocIndex = pAllocationVector->Free(pMemory);
3244  if(allocIndex != (size_t)-1)
3245  {
3246  VMA_DEBUG_LOG(" Freed from MemoryTypeIndex=%u", memTypeIndex);
3247  found = true;
3248  VmaAllocation* const pAlloc = pAllocationVector->m_Allocations[allocIndex];
3249  VMA_ASSERT(pAlloc);
3250  // pAlloc became empty after this deallocation.
3251  if(pAlloc->IsEmpty())
3252  {
3253  // Already has empty Allocation. We don't want to have two, so delete this one.
3254  if(m_HasEmptyAllocation[memTypeIndex])
3255  {
3256  allocationToDelete = pAlloc;
3257  VectorRemove(pAllocationVector->m_Allocations, allocIndex);
3258  break;
3259  }
3260  // We now have first empty Allocation.
3261  else
3262  m_HasEmptyAllocation[memTypeIndex] = true;
3263  }
3264  // Must be called after allocIndex is used, because later it may become invalid!
3265  pAllocationVector->IncrementallySortAllocations();
3266  break;
3267  }
3268  }
3269  if(found)
3270  {
3271  // Destruction of a free Allocation. Deferred until this point, outside of mutex
3272  // lock, for performance reason.
3273  if(allocationToDelete != VMA_NULL)
3274  {
3275  VMA_DEBUG_LOG(" Deleted empty allocation");
3276  allocationToDelete->Destroy(this);
3277  vma_delete(this, allocationToDelete);
3278  }
3279  return;
3280  }
3281 
3282  // pMemory not found in allocations. Try free it as Own Memory.
3283  if(FreeOwnMemory(pMemory))
3284  return;
3285 
3286  // pMemory not found as Own Memory either.
3287  VMA_ASSERT(0 && "Not found. Trying to free memory not allocated using this allocator (or some other bug).");
3288 }
3289 
3290 void VmaAllocator_T::CalculateStats(VmaStats* pStats)
3291 {
3292  InitStatInfo(pStats->total);
3293  for(size_t i = 0; i < VK_MAX_MEMORY_TYPES; ++i)
3294  InitStatInfo(pStats->memoryType[i]);
3295  for(size_t i = 0; i < VK_MAX_MEMORY_HEAPS; ++i)
3296  InitStatInfo(pStats->memoryHeap[i]);
3297 
3298  for(uint32_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex)
3299  {
3300  VmaMutexLock allocationsLock(m_AllocationsMutex[memTypeIndex]);
3301  const uint32_t heapIndex = m_MemProps.memoryTypes[memTypeIndex].heapIndex;
3302  const VmaAllocationVector* const allocVector = m_pAllocations[memTypeIndex];
3303  VMA_ASSERT(allocVector);
3304  allocVector->AddStats(pStats, memTypeIndex, heapIndex);
3305  }
3306 
3307  VmaPostprocessCalcStatInfo(pStats->total);
3308  for(size_t i = 0; i < GetMemoryTypeCount(); ++i)
3309  VmaPostprocessCalcStatInfo(pStats->memoryType[i]);
3310  for(size_t i = 0; i < GetMemoryHeapCount(); ++i)
3311  VmaPostprocessCalcStatInfo(pStats->memoryHeap[i]);
3312 }
3313 
3314 bool VmaAllocator_T::FreeOwnMemory(const VkMappedMemoryRange* pMemory)
3315 {
3316  VkDeviceMemory vkMemory = VK_NULL_HANDLE;
3317 
3318  // Check all memory types because we don't know which one does pMemory come from.
3319  for(uint32_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex)
3320  {
3321  VmaMutexLock lock(m_OwnAllocationsMutex[memTypeIndex]);
3322  OwnAllocationVectorType* const pOwnAllocations = m_pOwnAllocations[memTypeIndex];
3323  VMA_ASSERT(pOwnAllocations);
3324  VmaOwnAllocation* const pOwnAllocationsBeg = pOwnAllocations->data();
3325  VmaOwnAllocation* const pOwnAllocationsEnd = pOwnAllocationsBeg + pOwnAllocations->size();
3326  VmaOwnAllocation* const pOwnAllocationIt = VmaBinaryFindFirstNotLess(
3327  pOwnAllocationsBeg,
3328  pOwnAllocationsEnd,
3329  pMemory->memory,
3330  VmaOwnAllocationMemoryHandleLess());
3331  if((pOwnAllocationIt != pOwnAllocationsEnd) &&
3332  (pOwnAllocationIt->m_hMemory == pMemory->memory))
3333  {
3334  VMA_ASSERT(pMemory->size == pOwnAllocationIt->m_Size && pMemory->offset == 0);
3335  vkMemory = pOwnAllocationIt->m_hMemory;
3336  const size_t ownAllocationIndex = pOwnAllocationIt - pOwnAllocationsBeg;
3337  VectorRemove(*pOwnAllocations, ownAllocationIndex);
3338  VMA_DEBUG_LOG(" Freed OwnMemory MemoryTypeIndex=%u", memTypeIndex);
3339  break;
3340  }
3341  }
3342 
3343  // Found. Free VkDeviceMemory deferred until this point, outside of mutex lock,
3344  // for performance reason.
3345  if(vkMemory != VK_NULL_HANDLE)
3346  {
3347  vkFreeMemory(m_hDevice, vkMemory, GetAllocationCallbacks());
3348  return true;
3349  }
3350  else
3351  return false;
3352 }
3353 
3354 #if VMA_STATS_STRING_ENABLED
3355 
3356 void VmaAllocator_T::PrintDetailedMap(VmaStringBuilder& sb)
3357 {
3358  bool ownAllocationsStarted = false;
3359  for(size_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex)
3360  {
3361  VmaMutexLock ownAllocationsLock(m_OwnAllocationsMutex[memTypeIndex]);
3362  OwnAllocationVectorType* const pOwnAllocVector = m_pOwnAllocations[memTypeIndex];
3363  VMA_ASSERT(pOwnAllocVector);
3364  if(pOwnAllocVector->empty() == false)
3365  {
3366  if(ownAllocationsStarted)
3367  sb.Add(",\n\t\"Type ");
3368  else
3369  {
3370  sb.Add(",\n\"OwnAllocations\": {\n\t\"Type ");
3371  ownAllocationsStarted = true;
3372  }
3373  sb.AddNumber(memTypeIndex);
3374  sb.Add("\": [");
3375 
3376  for(size_t i = 0; i < pOwnAllocVector->size(); ++i)
3377  {
3378  const VmaOwnAllocation& ownAlloc = (*pOwnAllocVector)[i];
3379  if(i > 0)
3380  sb.Add(",\n\t\t{ \"Size\": ");
3381  else
3382  sb.Add("\n\t\t{ \"Size\": ");
3383  sb.AddNumber(ownAlloc.m_Size);
3384  sb.Add(", \"Type\": ");
3385  sb.AddString(VMA_SUBALLOCATION_TYPE_NAMES[ownAlloc.m_Type]);
3386  sb.Add(" }");
3387  }
3388 
3389  sb.Add("\n\t]");
3390  }
3391  }
3392  if(ownAllocationsStarted)
3393  sb.Add("\n}");
3394 
3395  {
3396  bool allocationsStarted = false;
3397  for(size_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex)
3398  {
3399  VmaMutexLock globalAllocationsLock(m_AllocationsMutex[memTypeIndex]);
3400  if(m_pAllocations[memTypeIndex]->IsEmpty() == false)
3401  {
3402  if(allocationsStarted)
3403  sb.Add(",\n\t\"Type ");
3404  else
3405  {
3406  sb.Add(",\n\"Allocations\": {\n\t\"Type ");
3407  allocationsStarted = true;
3408  }
3409  sb.AddNumber(memTypeIndex);
3410  sb.Add("\": [");
3411 
3412  m_pAllocations[memTypeIndex]->PrintDetailedMap(sb);
3413 
3414  sb.Add("\n\t]");
3415  }
3416  }
3417  if(allocationsStarted)
3418  sb.Add("\n}");
3419  }
3420 }
3421 
3422 #endif // #if VMA_STATS_STRING_ENABLED
3423 
3424 static VkResult AllocateMemoryForImage(
3425  VmaAllocator allocator,
3426  VkImage image,
3427  const VmaMemoryRequirements* pMemoryRequirements,
3428  VmaSuballocationType suballocType,
3429  VkMappedMemoryRange* pMemory,
3430  uint32_t* pMemoryTypeIndex)
3431 {
3432  VMA_ASSERT(allocator && image != VK_NULL_HANDLE && pMemoryRequirements && pMemory);
3433 
3434  VkMemoryRequirements vkMemReq = {};
3435  vkGetImageMemoryRequirements(allocator->m_hDevice, image, &vkMemReq);
3436 
3437  return allocator->AllocateMemory(
3438  vkMemReq,
3439  *pMemoryRequirements,
3440  suballocType,
3441  pMemory,
3442  pMemoryTypeIndex);
3443 }
3444 
3446 // Public interface
3447 
3448 VkResult vmaCreateAllocator(
3449  const VmaAllocatorCreateInfo* pCreateInfo,
3450  VmaAllocator* pAllocator)
3451 {
3452  VMA_ASSERT(pCreateInfo && pAllocator);
3453  VMA_DEBUG_LOG("vmaCreateAllocator");
3454  *pAllocator = vma_new(pCreateInfo->pAllocationCallbacks, VmaAllocator_T)(pCreateInfo);
3455  return VK_SUCCESS;
3456 }
3457 
3458 void vmaDestroyAllocator(
3459  VmaAllocator allocator)
3460 {
3461  if(allocator != VK_NULL_HANDLE)
3462  {
3463  VMA_DEBUG_LOG("vmaDestroyAllocator");
3464  VkAllocationCallbacks allocationCallbacks = allocator->m_AllocationCallbacks;
3465  vma_delete(&allocationCallbacks, allocator);
3466  }
3467 }
3468 
3469 void vmaGetPhysicalDeviceProperties(
3470  VmaAllocator allocator,
3471  const VkPhysicalDeviceProperties **ppPhysicalDeviceProperties)
3472 {
3473  VMA_ASSERT(allocator && ppPhysicalDeviceProperties);
3474  *ppPhysicalDeviceProperties = &allocator->m_PhysicalDeviceProperties;
3475 }
3476 
3477 void vmaGetMemoryProperties(
3478  VmaAllocator allocator,
3479  const VkPhysicalDeviceMemoryProperties** ppPhysicalDeviceMemoryProperties)
3480 {
3481  VMA_ASSERT(allocator && ppPhysicalDeviceMemoryProperties);
3482  *ppPhysicalDeviceMemoryProperties = &allocator->m_MemProps;
3483 }
3484 
3485 void vmaGetMemoryTypeProperties(
3486  VmaAllocator allocator,
3487  uint32_t memoryTypeIndex,
3488  VkMemoryPropertyFlags* pFlags)
3489 {
3490  VMA_ASSERT(allocator && pFlags);
3491  VMA_ASSERT(memoryTypeIndex < allocator->GetMemoryTypeCount());
3492  *pFlags = allocator->m_MemProps.memoryTypes[memoryTypeIndex].propertyFlags;
3493 }
3494 
3495 void vmaCalculateStats(
3496  VmaAllocator allocator,
3497  VmaStats* pStats)
3498 {
3499  VMA_ASSERT(allocator && pStats);
3500  VMA_DEBUG_GLOBAL_MUTEX_LOCK
3501  allocator->CalculateStats(pStats);
3502 }
3503 
3504 #if VMA_STATS_STRING_ENABLED
3505 
3506 void vmaBuildStatsString(
3507  VmaAllocator allocator,
3508  char** ppStatsString,
3509  VkBool32 detailedMap)
3510 {
3511  VMA_ASSERT(allocator && ppStatsString);
3512  VMA_DEBUG_GLOBAL_MUTEX_LOCK
3513 
3514  VmaStringBuilder sb(allocator);
3515  {
3516  VmaStats stats;
3517  allocator->CalculateStats(&stats);
3518 
3519  sb.Add("{\n\"Total\": ");
3520  VmaPrintStatInfo(sb, stats.total);
3521 
3522  for(uint32_t heapIndex = 0; heapIndex < allocator->GetMemoryHeapCount(); ++heapIndex)
3523  {
3524  sb.Add(",\n\"Heap ");
3525  sb.AddNumber(heapIndex);
3526  sb.Add("\": {\n\t\"Size\": ");
3527  sb.AddNumber(allocator->m_MemProps.memoryHeaps[heapIndex].size);
3528  sb.Add(",\n\t\"Flags\": ");
3529  if((allocator->m_MemProps.memoryHeaps[heapIndex].flags & VK_MEMORY_HEAP_DEVICE_LOCAL_BIT) != 0)
3530  sb.AddString("DEVICE_LOCAL");
3531  else
3532  sb.AddString("");
3533  if(stats.memoryHeap[heapIndex].AllocationCount > 0)
3534  {
3535  sb.Add(",\n\t\"Stats:\": ");
3536  VmaPrintStatInfo(sb, stats.memoryHeap[heapIndex]);
3537  }
3538 
3539  for(uint32_t typeIndex = 0; typeIndex < allocator->GetMemoryTypeCount(); ++typeIndex)
3540  {
3541  if(allocator->m_MemProps.memoryTypes[typeIndex].heapIndex == heapIndex)
3542  {
3543  sb.Add(",\n\t\"Type ");
3544  sb.AddNumber(typeIndex);
3545  sb.Add("\": {\n\t\t\"Flags\": \"");
3546  VkMemoryPropertyFlags flags = allocator->m_MemProps.memoryTypes[typeIndex].propertyFlags;
3547  if((flags & VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT) != 0)
3548  sb.Add(" DEVICE_LOCAL");
3549  if((flags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) != 0)
3550  sb.Add(" HOST_VISIBLE");
3551  if((flags & VK_MEMORY_PROPERTY_HOST_COHERENT_BIT) != 0)
3552  sb.Add(" HOST_COHERENT");
3553  if((flags & VK_MEMORY_PROPERTY_HOST_CACHED_BIT) != 0)
3554  sb.Add(" HOST_CACHED");
3555  if((flags & VK_MEMORY_PROPERTY_LAZILY_ALLOCATED_BIT) != 0)
3556  sb.Add(" LAZILY_ALLOCATED");
3557  sb.Add("\"");
3558  if(stats.memoryType[typeIndex].AllocationCount > 0)
3559  {
3560  sb.Add(",\n\t\t\"Stats\": ");
3561  VmaPrintStatInfo(sb, stats.memoryType[typeIndex]);
3562  }
3563  sb.Add("\n\t}");
3564  }
3565  }
3566  sb.Add("\n}");
3567  }
3568  if(detailedMap == VK_TRUE)
3569  allocator->PrintDetailedMap(sb);
3570  sb.Add("\n}\n");
3571  }
3572 
3573  const size_t len = sb.GetLength();
3574  char* const pChars = vma_new_array(allocator, char, len + 1);
3575  if(len > 0)
3576  memcpy(pChars, sb.GetData(), len);
3577  pChars[len] = '\0';
3578  *ppStatsString = pChars;
3579 }
3580 
3581 void vmaFreeStatsString(
3582  VmaAllocator allocator,
3583  char* pStatsString)
3584 {
3585  if(pStatsString != VMA_NULL)
3586  {
3587  VMA_ASSERT(allocator);
3588  size_t len = strlen(pStatsString);
3589  vma_delete_array(allocator, pStatsString, len + 1);
3590  }
3591 }
3592 
3593 #endif // #if VMA_STATS_STRING_ENABLED
3594 
3597 VkResult vmaFindMemoryTypeIndex(
3598  VmaAllocator allocator,
3599  uint32_t memoryTypeBits,
3600  const VmaMemoryRequirements* pMemoryRequirements,
3601  uint32_t* pMemoryTypeIndex)
3602 {
3603  VMA_ASSERT(allocator != VK_NULL_HANDLE);
3604  VMA_ASSERT(pMemoryRequirements != VMA_NULL);
3605  VMA_ASSERT(pMemoryTypeIndex != VMA_NULL);
3606 
3607  uint32_t requiredFlags = pMemoryRequirements->requiredFlags;
3608  uint32_t preferredFlags = pMemoryRequirements->preferredFlags;
3609  if(preferredFlags == 0)
3610  preferredFlags = requiredFlags;
3611  // preferredFlags, if not 0, must be a superset of requiredFlags.
3612  VMA_ASSERT((requiredFlags & ~preferredFlags) == 0);
3613 
3614  // Convert usage to requiredFlags and preferredFlags.
3615  switch(pMemoryRequirements->usage)
3616  {
3617  case VMA_MEMORY_USAGE_UNKNOWN:
3618  break;
3619  case VMA_MEMORY_USAGE_GPU_ONLY:
3620  preferredFlags |= VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
3621  break;
3622  case VMA_MEMORY_USAGE_CPU_ONLY:
3623  requiredFlags |= VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT;
3624  break;
3625  case VMA_MEMORY_USAGE_CPU_TO_GPU:
3626  requiredFlags |= VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT;
3627  preferredFlags |= VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
3628  break;
3629  case VMA_MEMORY_USAGE_GPU_TO_CPU:
3630  requiredFlags |= VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT;
3631  preferredFlags |= VK_MEMORY_PROPERTY_HOST_COHERENT_BIT | VK_MEMORY_PROPERTY_HOST_CACHED_BIT;
3632  break;
3633  default:
3634  break;
3635  }
3636 
3637  *pMemoryTypeIndex = UINT32_MAX;
3638  uint32_t minCost = UINT32_MAX;
3639  for(uint32_t memTypeIndex = 0, memTypeBit = 1;
3640  memTypeIndex < allocator->GetMemoryTypeCount();
3641  ++memTypeIndex, memTypeBit <<= 1)
3642  {
3643  // This memory type is acceptable according to memoryTypeBits bitmask.
3644  if((memTypeBit & memoryTypeBits) != 0)
3645  {
3646  const VkMemoryPropertyFlags currFlags =
3647  allocator->m_MemProps.memoryTypes[memTypeIndex].propertyFlags;
3648  // This memory type contains requiredFlags.
3649  if((requiredFlags & ~currFlags) == 0)
3650  {
3651  // Calculate cost as number of bits from preferredFlags not present in this memory type.
3652  uint32_t currCost = CountBitsSet(preferredFlags & ~currFlags);
3653  // Remember memory type with lowest cost.
3654  if(currCost < minCost)
3655  {
3656  *pMemoryTypeIndex = memTypeIndex;
3657  if(currCost == 0)
3658  return VK_SUCCESS;
3659  minCost = currCost;
3660  }
3661  }
3662  }
3663  }
3664  return (*pMemoryTypeIndex != UINT32_MAX) ? VK_SUCCESS : VK_ERROR_FEATURE_NOT_PRESENT;
3665 }
3666 
3667 VkResult vmaAllocateMemory(
3668  VmaAllocator allocator,
3669  const VkMemoryRequirements* pVkMemoryRequirements,
3670  const VmaMemoryRequirements* pVmaMemoryRequirements,
3671  VkMappedMemoryRange* pMemory,
3672  uint32_t* pMemoryTypeIndex)
3673 {
3674  VMA_ASSERT(allocator && pVkMemoryRequirements && pVmaMemoryRequirements && pMemory);
3675 
3676  VMA_DEBUG_LOG("vmaAllocateMemory");
3677 
3678  VMA_DEBUG_GLOBAL_MUTEX_LOCK
3679 
3680  return allocator->AllocateMemory(
3681  *pVkMemoryRequirements,
3682  *pVmaMemoryRequirements,
3683  VMA_SUBALLOCATION_TYPE_UNKNOWN,
3684  pMemory,
3685  pMemoryTypeIndex);
3686 }
3687 
3688 VkResult vmaAllocateMemoryForBuffer(
3689  VmaAllocator allocator,
3690  VkBuffer buffer,
3691  const VmaMemoryRequirements* pMemoryRequirements,
3692  VkMappedMemoryRange* pMemory,
3693  uint32_t* pMemoryTypeIndex)
3694 {
3695  VMA_ASSERT(allocator && buffer != VK_NULL_HANDLE && pMemoryRequirements && pMemory);
3696 
3697  VMA_DEBUG_LOG("vmaAllocateMemoryForBuffer");
3698 
3699  VMA_DEBUG_GLOBAL_MUTEX_LOCK
3700 
3701  VkMemoryRequirements vkMemReq = {};
3702  vkGetBufferMemoryRequirements(allocator->m_hDevice, buffer, &vkMemReq);
3703 
3704  return allocator->AllocateMemory(
3705  vkMemReq,
3706  *pMemoryRequirements,
3707  VMA_SUBALLOCATION_TYPE_BUFFER,
3708  pMemory,
3709  pMemoryTypeIndex);
3710 }
3711 
3712 VkResult vmaAllocateMemoryForImage(
3713  VmaAllocator allocator,
3714  VkImage image,
3715  const VmaMemoryRequirements* pMemoryRequirements,
3716  VkMappedMemoryRange* pMemory,
3717  uint32_t* pMemoryTypeIndex)
3718 {
3719  VMA_ASSERT(allocator && image != VK_NULL_HANDLE && pMemoryRequirements);
3720 
3721  VMA_DEBUG_LOG("vmaAllocateMemoryForImage");
3722 
3723  VMA_DEBUG_GLOBAL_MUTEX_LOCK
3724 
3725  return AllocateMemoryForImage(
3726  allocator,
3727  image,
3728  pMemoryRequirements,
3729  VMA_SUBALLOCATION_TYPE_IMAGE_UNKNOWN,
3730  pMemory,
3731  pMemoryTypeIndex);
3732 }
3733 
3734 void vmaFreeMemory(
3735  VmaAllocator allocator,
3736  const VkMappedMemoryRange* pMemory)
3737 {
3738  VMA_ASSERT(allocator && pMemory);
3739 
3740  VMA_DEBUG_LOG("vmaFreeMemory");
3741 
3742  VMA_DEBUG_GLOBAL_MUTEX_LOCK
3743 
3744  allocator->FreeMemory(pMemory);
3745 }
3746 
3747 VkResult vmaMapMemory(
3748  VmaAllocator allocator,
3749  const VkMappedMemoryRange* pMemory,
3750  void** ppData)
3751 {
3752  VMA_ASSERT(allocator && pMemory && ppData);
3753 
3754  VMA_DEBUG_GLOBAL_MUTEX_LOCK
3755 
3756  return vkMapMemory(allocator->m_hDevice, pMemory->memory,
3757  pMemory->offset, pMemory->size, 0, ppData);
3758 }
3759 
3760 void vmaUnmapMemory(
3761  VmaAllocator allocator,
3762  const VkMappedMemoryRange* pMemory)
3763 {
3764  VMA_ASSERT(allocator && pMemory);
3765 
3766  VMA_DEBUG_GLOBAL_MUTEX_LOCK
3767 
3768  vkUnmapMemory(allocator->m_hDevice, pMemory->memory);
3769 }
3770 
3771 VkResult vmaCreateBuffer(
3772  VmaAllocator allocator,
3773  const VkBufferCreateInfo* pCreateInfo,
3774  const VmaMemoryRequirements* pMemoryRequirements,
3775  VkBuffer* pBuffer,
3776  VkMappedMemoryRange* pMemory,
3777  uint32_t* pMemoryTypeIndex)
3778 {
3779  VMA_ASSERT(allocator && pCreateInfo && pMemoryRequirements);
3780 
3781  VMA_DEBUG_LOG("vmaCreateBuffer");
3782 
3783  VMA_DEBUG_GLOBAL_MUTEX_LOCK
3784 
3785  // 1. Create VkBuffer.
3786  VkResult res = vkCreateBuffer(allocator->m_hDevice, pCreateInfo, allocator->GetAllocationCallbacks(), pBuffer);
3787  if(res >= 0)
3788  {
3789  VkMappedMemoryRange mem = {};
3790 
3791  // 2. vkGetBufferMemoryRequirements.
3792  VkMemoryRequirements vkMemReq = {};
3793  vkGetBufferMemoryRequirements(allocator->m_hDevice, *pBuffer, &vkMemReq);
3794 
3795  // 3. Allocate memory using allocator.
3796  res = allocator->AllocateMemory(
3797  vkMemReq,
3798  *pMemoryRequirements,
3799  VMA_SUBALLOCATION_TYPE_BUFFER,
3800  &mem,
3801  pMemoryTypeIndex);
3802  if(res >= 0)
3803  {
3804  if(pMemory != VMA_NULL)
3805  {
3806  *pMemory = mem;
3807  }
3808  // 3. Bind buffer with memory.
3809  res = vkBindBufferMemory(allocator->m_hDevice, *pBuffer, mem.memory, mem.offset);
3810  if(res >= 0)
3811  {
3812  // All steps succeeded.
3813  VmaMutexLock lock(allocator->m_BufferToMemoryMapMutex);
3814  allocator->m_BufferToMemoryMap.insert(VmaPair<VkBuffer, VkMappedMemoryRange>(*pBuffer, mem));
3815  return VK_SUCCESS;
3816  }
3817  allocator->FreeMemory(&mem);
3818  return res;
3819  }
3820  vkDestroyBuffer(allocator->m_hDevice, *pBuffer, allocator->GetAllocationCallbacks());
3821  return res;
3822  }
3823  return res;
3824 }
3825 
3826 void vmaDestroyBuffer(
3827  VmaAllocator allocator,
3828  VkBuffer buffer)
3829 {
3830  if(buffer != VK_NULL_HANDLE)
3831  {
3832  VMA_ASSERT(allocator);
3833 
3834  VMA_DEBUG_LOG("vmaDestroyBuffer");
3835 
3836  VMA_DEBUG_GLOBAL_MUTEX_LOCK
3837 
3838  VkMappedMemoryRange mem = {};
3839  {
3840  VmaMutexLock lock(allocator->m_BufferToMemoryMapMutex);
3841  VMA_MAP_TYPE(VkBuffer, VkMappedMemoryRange)::iterator it = allocator->m_BufferToMemoryMap.find(buffer);
3842  if(it == allocator->m_BufferToMemoryMap.end())
3843  {
3844  VMA_ASSERT(0 && "Trying to destroy buffer that was not created using vmaCreateBuffer or already freed.");
3845  return;
3846  }
3847  mem = it->second;
3848  allocator->m_BufferToMemoryMap.erase(it);
3849  }
3850 
3851  vkDestroyBuffer(allocator->m_hDevice, buffer, allocator->GetAllocationCallbacks());
3852 
3853  allocator->FreeMemory(&mem);
3854  }
3855 }
3856 
3857 VkResult vmaCreateImage(
3858  VmaAllocator allocator,
3859  const VkImageCreateInfo* pCreateInfo,
3860  const VmaMemoryRequirements* pMemoryRequirements,
3861  VkImage* pImage,
3862  VkMappedMemoryRange* pMemory,
3863  uint32_t* pMemoryTypeIndex)
3864 {
3865  VMA_ASSERT(allocator && pCreateInfo && pMemoryRequirements);
3866 
3867  VMA_DEBUG_LOG("vmaCreateImage");
3868 
3869  VMA_DEBUG_GLOBAL_MUTEX_LOCK
3870 
3871  // 1. Create VkImage.
3872  VkResult res = vkCreateImage(allocator->m_hDevice, pCreateInfo, allocator->GetAllocationCallbacks(), pImage);
3873  if(res >= 0)
3874  {
3875  VkMappedMemoryRange mem = {};
3876  VmaSuballocationType suballocType = pCreateInfo->tiling == VK_IMAGE_TILING_OPTIMAL ?
3877  VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL :
3878  VMA_SUBALLOCATION_TYPE_IMAGE_LINEAR;
3879 
3880  // 2. Allocate memory using allocator.
3881  res = AllocateMemoryForImage(allocator, *pImage, pMemoryRequirements, suballocType, &mem, pMemoryTypeIndex);
3882  if(res >= 0)
3883  {
3884  if(pMemory != VMA_NULL)
3885  *pMemory = mem;
3886  // 3. Bind image with memory.
3887  res = vkBindImageMemory(allocator->m_hDevice, *pImage, mem.memory, mem.offset);
3888  if(res >= 0)
3889  {
3890  // All steps succeeded.
3891  VmaMutexLock lock(allocator->m_ImageToMemoryMapMutex);
3892  allocator->m_ImageToMemoryMap.insert(VmaPair<VkImage, VkMappedMemoryRange>(*pImage, mem));
3893  return VK_SUCCESS;
3894  }
3895  allocator->FreeMemory(&mem);
3896  return res;
3897  }
3898  vkDestroyImage(allocator->m_hDevice, *pImage, allocator->GetAllocationCallbacks());
3899  return res;
3900  }
3901  return res;
3902 }
3903 
3904 void vmaDestroyImage(
3905  VmaAllocator allocator,
3906  VkImage image)
3907 {
3908  if(image != VK_NULL_HANDLE)
3909  {
3910  VMA_ASSERT(allocator);
3911 
3912  VMA_DEBUG_LOG("vmaDestroyImage");
3913 
3914  VMA_DEBUG_GLOBAL_MUTEX_LOCK
3915 
3916  VkMappedMemoryRange mem = {};
3917  {
3918  VmaMutexLock lock(allocator->m_ImageToMemoryMapMutex);
3919  VMA_MAP_TYPE(VkImage, VkMappedMemoryRange)::iterator it = allocator->m_ImageToMemoryMap.find(image);
3920  if(it == allocator->m_ImageToMemoryMap.end())
3921  {
3922  VMA_ASSERT(0 && "Trying to destroy buffer that was not created using vmaCreateBuffer or already freed.");
3923  return;
3924  }
3925  mem = it->second;
3926  allocator->m_ImageToMemoryMap.erase(it);
3927  }
3928 
3929  vkDestroyImage(allocator->m_hDevice, image, allocator->GetAllocationCallbacks());
3930 
3931  allocator->FreeMemory(&mem);
3932  }
3933 }
3934 
3935 #endif // #ifdef VMA_IMPLEMENTATION
3936 
3937 #endif // AMD_VULKAN_MEMORY_ALLOCATOR_H
VmaMemoryRequirements
struct VmaMemoryRequirements VmaMemoryRequirements
vmaUnmapMemory
void vmaUnmapMemory(VmaAllocator allocator, const VkMappedMemoryRange *pMemory)
-
VmaAllocatorCreateInfo::physicalDevice
VkPhysicalDevice physicalDevice
Vulkan physical device.
Definition: vk_mem_alloc.h:165
+
VmaAllocatorCreateInfo::physicalDevice
VkPhysicalDevice physicalDevice
Vulkan physical device.
Definition: vk_mem_alloc.h:169
vmaMapMemory
VkResult vmaMapMemory(VmaAllocator allocator, const VkMappedMemoryRange *pMemory, void **ppData)
-
VMA_MEMORY_USAGE_GPU_TO_CPU
Memory will be used for writing on device and readback on host.
Definition: vk_mem_alloc.h:278
-
VmaMemoryRequirements::usage
VmaMemoryUsage usage
Intended usage of memory.
Definition: vk_mem_alloc.h:297
+
VMA_MEMORY_USAGE_GPU_TO_CPU
Memory will be used for writing on device and readback on host.
Definition: vk_mem_alloc.h:282
+
VmaMemoryRequirements::usage
VmaMemoryUsage usage
Intended usage of memory.
Definition: vk_mem_alloc.h:301
vmaAllocateMemoryForImage
VkResult vmaAllocateMemoryForImage(VmaAllocator allocator, VkImage image, const VmaMemoryRequirements *pMemoryRequirements, VkMappedMemoryRange *pMemory, uint32_t *pMemoryTypeIndex)
Function similar to vmaAllocateMemoryForBuffer().
-
VmaAllocatorCreateInfo::pAllocationCallbacks
const VkAllocationCallbacks * pAllocationCallbacks
Custom allocation callbacks.
Definition: vk_mem_alloc.h:177
-
VmaAllocatorCreateInfo
Description of a Allocator to be created.
Definition: vk_mem_alloc.h:161
-
VmaAllocatorCreateInfo::preferredSmallHeapBlockSize
VkDeviceSize preferredSmallHeapBlockSize
Size of a single memory block to allocate for resources from a small heap <= 512 MB.
Definition: vk_mem_alloc.h:174
-
VmaStats::total
VmaStatInfo total
Definition: vk_mem_alloc.h:232
-
VmaAllocatorCreateInfo::device
VkDevice device
Vulkan device.
Definition: vk_mem_alloc.h:168
+
VmaAllocatorCreateInfo::pAllocationCallbacks
const VkAllocationCallbacks * pAllocationCallbacks
Custom allocation callbacks.
Definition: vk_mem_alloc.h:181
+
VmaAllocatorCreateInfo
Description of a Allocator to be created.
Definition: vk_mem_alloc.h:165
+
VmaAllocatorCreateInfo::preferredSmallHeapBlockSize
VkDeviceSize preferredSmallHeapBlockSize
Size of a single memory block to allocate for resources from a small heap <= 512 MB.
Definition: vk_mem_alloc.h:178
+
VmaStats::total
VmaStatInfo total
Definition: vk_mem_alloc.h:236
+
VmaAllocatorCreateInfo::device
VkDevice device
Vulkan device.
Definition: vk_mem_alloc.h:172
vmaAllocateMemory
VkResult vmaAllocateMemory(VmaAllocator allocator, const VkMemoryRequirements *pVkMemoryRequirements, const VmaMemoryRequirements *pVmaMemoryRequirements, VkMappedMemoryRange *pMemory, uint32_t *pMemoryTypeIndex)
General purpose memory allocation.
vmaBuildStatsString
void vmaBuildStatsString(VmaAllocator allocator, char **ppStatsString, VkBool32 detailedMap)
Builds and returns statistics as string in JSON format.
vmaDestroyBuffer
void vmaDestroyBuffer(VmaAllocator allocator, VkBuffer buffer)
vmaCreateImage
VkResult vmaCreateImage(VmaAllocator allocator, const VkImageCreateInfo *pCreateInfo, const VmaMemoryRequirements *pMemoryRequirements, VkImage *pImage, VkMappedMemoryRange *pMemory, uint32_t *pMemoryTypeIndex)
Function similar to vmaCreateBuffer().
-
VmaStats
General statistics from current state of Allocator.
Definition: vk_mem_alloc.h:228
+
VmaStats
General statistics from current state of Allocator.
Definition: vk_mem_alloc.h:232
vmaCreateAllocator
VkResult vmaCreateAllocator(const VmaAllocatorCreateInfo *pCreateInfo, VmaAllocator *pAllocator)
Creates Allocator object.
-
VmaMemoryRequirements::preferredFlags
VkMemoryPropertyFlags preferredFlags
Flags that preferably should be set in a Memory Type chosen for an allocation.
Definition: vk_mem_alloc.h:306
-
VmaMemoryUsage
VmaMemoryUsage
Definition: vk_mem_alloc.h:267
+
VmaMemoryRequirements::preferredFlags
VkMemoryPropertyFlags preferredFlags
Flags that preferably should be set in a Memory Type chosen for an allocation.
Definition: vk_mem_alloc.h:310
+
VmaMemoryUsage
VmaMemoryUsage
Definition: vk_mem_alloc.h:271
vmaDestroyAllocator
void vmaDestroyAllocator(VmaAllocator allocator)
Destroys allocator object.
vmaCreateBuffer
VkResult vmaCreateBuffer(VmaAllocator allocator, const VkBufferCreateInfo *pCreateInfo, const VmaMemoryRequirements *pMemoryRequirements, VkBuffer *pBuffer, VkMappedMemoryRange *pMemory, uint32_t *pMemoryTypeIndex)
vmaCalculateStats
void vmaCalculateStats(VmaAllocator allocator, VmaStats *pStats)
Retrieves statistics from current state of the Allocator.
-
VmaStatInfo
Definition: vk_mem_alloc.h:216
-
VmaMemoryRequirements::requiredFlags
VkMemoryPropertyFlags requiredFlags
Flags that must be set in a Memory Type chosen for an allocation.
Definition: vk_mem_alloc.h:301
-
VmaMemoryRequirements
Definition: vk_mem_alloc.h:282
-
VmaMemoryRequirements::neverAllocate
VkBool32 neverAllocate
Set this flag to only try to allocate from existing VkDeviceMemory blocks and never create new such b...
Definition: vk_mem_alloc.h:313
-
VmaStatInfo::UnusedRangeSizeMax
VkDeviceSize UnusedRangeSizeMax
Definition: vk_mem_alloc.h:224
-
VmaStatInfo::SuballocationSizeMax
VkDeviceSize SuballocationSizeMax
Definition: vk_mem_alloc.h:223
+
VmaStatInfo
Definition: vk_mem_alloc.h:220
+
VmaMemoryRequirements::requiredFlags
VkMemoryPropertyFlags requiredFlags
Flags that must be set in a Memory Type chosen for an allocation.
Definition: vk_mem_alloc.h:305
+
VmaMemoryRequirements
Definition: vk_mem_alloc.h:286
+
VmaMemoryRequirements::neverAllocate
VkBool32 neverAllocate
Set this flag to only try to allocate from existing VkDeviceMemory blocks and never create new such b...
Definition: vk_mem_alloc.h:317
+
VmaStatInfo::UnusedRangeSizeMax
VkDeviceSize UnusedRangeSizeMax
Definition: vk_mem_alloc.h:228
+
VmaStatInfo::SuballocationSizeMax
VkDeviceSize SuballocationSizeMax
Definition: vk_mem_alloc.h:227
VmaAllocatorCreateInfo
struct VmaAllocatorCreateInfo VmaAllocatorCreateInfo
Description of a Allocator to be created.
-
VmaMemoryRequirements::ownMemory
VkBool32 ownMemory
Set to true if this allocation should have its own memory block.
Definition: vk_mem_alloc.h:292
-
VmaStats::memoryType
VmaStatInfo memoryType[VK_MAX_MEMORY_TYPES]
Definition: vk_mem_alloc.h:230
+
VmaMemoryRequirements::ownMemory
VkBool32 ownMemory
Set to true if this allocation should have its own memory block.
Definition: vk_mem_alloc.h:296
+
VmaStats::memoryType
VmaStatInfo memoryType[VK_MAX_MEMORY_TYPES]
Definition: vk_mem_alloc.h:234
vmaDestroyImage
void vmaDestroyImage(VmaAllocator allocator, VkImage image)
-
VmaStatInfo::AllocationCount
uint32_t AllocationCount
Definition: vk_mem_alloc.h:218
+
VmaStatInfo::AllocationCount
uint32_t AllocationCount
Definition: vk_mem_alloc.h:222
vmaGetPhysicalDeviceProperties
void vmaGetPhysicalDeviceProperties(VmaAllocator allocator, const VkPhysicalDeviceProperties **ppPhysicalDeviceProperties)
-
VmaStatInfo::UsedBytes
VkDeviceSize UsedBytes
Definition: vk_mem_alloc.h:221
-
VmaAllocatorCreateInfo::preferredLargeHeapBlockSize
VkDeviceSize preferredLargeHeapBlockSize
Size of a single memory block to allocate for resources.
Definition: vk_mem_alloc.h:171
-
VmaStatInfo::UnusedRangeCount
uint32_t UnusedRangeCount
Definition: vk_mem_alloc.h:220
-
VMA_MEMORY_USAGE_CPU_ONLY
Memory will be mapped on host. Could be used for transfer to device.
Definition: vk_mem_alloc.h:274
+
VmaStatInfo::UsedBytes
VkDeviceSize UsedBytes
Definition: vk_mem_alloc.h:225
+
VmaAllocatorCreateInfo::preferredLargeHeapBlockSize
VkDeviceSize preferredLargeHeapBlockSize
Size of a single memory block to allocate for resources.
Definition: vk_mem_alloc.h:175
+
VmaStatInfo::UnusedRangeCount
uint32_t UnusedRangeCount
Definition: vk_mem_alloc.h:224
+
VMA_MEMORY_USAGE_CPU_ONLY
Memory will be mapped on host. Could be used for transfer to device.
Definition: vk_mem_alloc.h:278
vmaGetMemoryProperties
void vmaGetMemoryProperties(VmaAllocator allocator, const VkPhysicalDeviceMemoryProperties **ppPhysicalDeviceMemoryProperties)
-
VmaStatInfo::SuballocationCount
uint32_t SuballocationCount
Definition: vk_mem_alloc.h:219
-
VmaStatInfo::UnusedRangeSizeAvg
VkDeviceSize UnusedRangeSizeAvg
Definition: vk_mem_alloc.h:224
-
VmaStatInfo::SuballocationSizeMin
VkDeviceSize SuballocationSizeMin
Definition: vk_mem_alloc.h:223
+
VmaStatInfo::SuballocationCount
uint32_t SuballocationCount
Definition: vk_mem_alloc.h:223
+
VmaStatInfo::UnusedRangeSizeAvg
VkDeviceSize UnusedRangeSizeAvg
Definition: vk_mem_alloc.h:228
+
VmaStatInfo::SuballocationSizeMin
VkDeviceSize SuballocationSizeMin
Definition: vk_mem_alloc.h:227
vmaAllocateMemoryForBuffer
VkResult vmaAllocateMemoryForBuffer(VmaAllocator allocator, VkBuffer buffer, const VmaMemoryRequirements *pMemoryRequirements, VkMappedMemoryRange *pMemory, uint32_t *pMemoryTypeIndex)
-
VmaStatInfo::SuballocationSizeAvg
VkDeviceSize SuballocationSizeAvg
Definition: vk_mem_alloc.h:223
+
VmaStatInfo::SuballocationSizeAvg
VkDeviceSize SuballocationSizeAvg
Definition: vk_mem_alloc.h:227
vmaFreeStatsString
void vmaFreeStatsString(VmaAllocator allocator, char *pStatsString)
-
VMA_MEMORY_USAGE_UNKNOWN
No intended memory usage specified.
Definition: vk_mem_alloc.h:270
-
VMA_MEMORY_USAGE_MAX_ENUM
Definition: vk_mem_alloc.h:279
-
VMA_MEMORY_USAGE_CPU_TO_GPU
Memory will be used for frequent (dynamic) updates from host and reads on device. ...
Definition: vk_mem_alloc.h:276
+
VMA_MEMORY_USAGE_UNKNOWN
No intended memory usage specified.
Definition: vk_mem_alloc.h:274
+
VMA_MEMORY_USAGE_MAX_ENUM
Definition: vk_mem_alloc.h:283
+
VMA_MEMORY_USAGE_CPU_TO_GPU
Memory will be used for frequent (dynamic) updates from host and reads on device. ...
Definition: vk_mem_alloc.h:280
vmaGetMemoryTypeProperties
void vmaGetMemoryTypeProperties(VmaAllocator allocator, uint32_t memoryTypeIndex, VkMemoryPropertyFlags *pFlags)
Given Memory Type Index, returns Property Flags of this memory type.
-
VMA_MEMORY_USAGE_GPU_ONLY
Memory will be used on device only, no need to be mapped on host.
Definition: vk_mem_alloc.h:272
+
VMA_MEMORY_USAGE_GPU_ONLY
Memory will be used on device only, no need to be mapped on host.
Definition: vk_mem_alloc.h:276
VmaStatInfo
struct VmaStatInfo VmaStatInfo
-
VmaStatInfo::UnusedBytes
VkDeviceSize UnusedBytes
Definition: vk_mem_alloc.h:222
-
VmaStats::memoryHeap
VmaStatInfo memoryHeap[VK_MAX_MEMORY_HEAPS]
Definition: vk_mem_alloc.h:231
+
VmaStatInfo::UnusedBytes
VkDeviceSize UnusedBytes
Definition: vk_mem_alloc.h:226
+
VmaStats::memoryHeap
VmaStatInfo memoryHeap[VK_MAX_MEMORY_HEAPS]
Definition: vk_mem_alloc.h:235
vmaFindMemoryTypeIndex
VkResult vmaFindMemoryTypeIndex(VmaAllocator allocator, uint32_t memoryTypeBits, const VmaMemoryRequirements *pMemoryRequirements, uint32_t *pMemoryTypeIndex)
vmaFreeMemory
void vmaFreeMemory(VmaAllocator allocator, const VkMappedMemoryRange *pMemory)
Frees memory previously allocated using vmaAllocateMemoryForBuffer() or vmaAllocateMemoryForImage().
-
VmaStatInfo::UnusedRangeSizeMin
VkDeviceSize UnusedRangeSizeMin
Definition: vk_mem_alloc.h:224
+
VmaStatInfo::UnusedRangeSizeMin
VkDeviceSize UnusedRangeSizeMin
Definition: vk_mem_alloc.h:228
diff --git a/src/vk_mem_alloc.h b/src/vk_mem_alloc.h index fa2d57c..0f29d18 100644 --- a/src/vk_mem_alloc.h +++ b/src/vk_mem_alloc.h @@ -144,8 +144,12 @@ Vulkan, as well as used by the library itself to make any CPU-side allocations. \section thread_safety Thread safety -All calls to functions that take VmaAllocator as first parameter are safe to -call from multiple threads simultaneously, synchronized internally when needed. +- The library has no global state, so separate VmaAllocator objects can be used + independently. +- All calls to functions that take VmaAllocator as first parameter are safe to + call from multiple threads simultaneously because they are synchronized + internally when needed. + */ #include