skia2/tests/VkHeapTests.cpp
jvanverth 6dc3af4499 Check for some potential subheap allocation failures.
Need to make sure we can allocate areas larger than our specified
subheap sizes, and deal with potential fragmentation in the main
system heap.
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2072763002

Review-Url: https://codereview.chromium.org/2072763002
2016-06-16 14:05:09 -07:00

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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
// This is a GPU-backend specific test. It relies on static intializers to work
#include "SkTypes.h"
#if SK_SUPPORT_GPU && SK_ALLOW_STATIC_GLOBAL_INITIALIZERS && defined(SK_VULKAN)
#include "GrContextFactory.h"
#include "GrTest.h"
#include "Test.h"
#include "vk/GrVkGpu.h"
using sk_gpu_test::GrContextFactory;
void subheap_test(skiatest::Reporter* reporter, GrContext* context) {
GrVkGpu* gpu = static_cast<GrVkGpu*>(context->getGpu());
// heap index doesn't matter, we're just testing the suballocation algorithm so we'll use 0
GrVkSubHeap heap(gpu, 0, 64 * 1024, 32);
GrVkAlloc alloc0, alloc1, alloc2, alloc3;
// test full allocation and free
REPORTER_ASSERT(reporter, heap.alloc(64 * 1024, &alloc0));
REPORTER_ASSERT(reporter, alloc0.fOffset == 0);
REPORTER_ASSERT(reporter, alloc0.fSize == 64 * 1024);
REPORTER_ASSERT(reporter, heap.freeSize() == 0 && heap.largestBlockSize() == 0);
heap.free(alloc0);
REPORTER_ASSERT(reporter, heap.freeSize() == 64*1024 && heap.largestBlockSize() == 64 * 1024);
// now let's suballoc some memory
REPORTER_ASSERT(reporter, heap.alloc(16 * 1024, &alloc0));
REPORTER_ASSERT(reporter, heap.alloc(23 * 1024, &alloc1));
REPORTER_ASSERT(reporter, heap.alloc(18 * 1024, &alloc2));
REPORTER_ASSERT(reporter, heap.freeSize() == 7 * 1024 && heap.largestBlockSize() == 7 * 1024);
// free lone block
heap.free(alloc1);
REPORTER_ASSERT(reporter, heap.freeSize() == 30 * 1024 && heap.largestBlockSize() == 23 * 1024);
// allocate into smallest free block
REPORTER_ASSERT(reporter, heap.alloc(6 * 1024, &alloc3));
REPORTER_ASSERT(reporter, heap.freeSize() == 24 * 1024 && heap.largestBlockSize() == 23 * 1024);
// allocate into exact size free block
REPORTER_ASSERT(reporter, heap.alloc(23 * 1024, &alloc1));
REPORTER_ASSERT(reporter, heap.freeSize() == 1 * 1024 && heap.largestBlockSize() == 1 * 1024);
// free lone block
heap.free(alloc2);
REPORTER_ASSERT(reporter, heap.freeSize() == 19 * 1024 && heap.largestBlockSize() == 18 * 1024);
// free and merge with preceding block and following
heap.free(alloc3);
REPORTER_ASSERT(reporter, heap.freeSize() == 25 * 1024 && heap.largestBlockSize() == 25 * 1024);
// free and merge with following block
heap.free(alloc1);
REPORTER_ASSERT(reporter, heap.freeSize() == 48 * 1024 && heap.largestBlockSize() == 48 * 1024);
// free starting block and merge with following
heap.free(alloc0);
REPORTER_ASSERT(reporter, heap.freeSize() == 64 * 1024 && heap.largestBlockSize() == 64 * 1024);
// realloc
REPORTER_ASSERT(reporter, heap.alloc(4 * 1024, &alloc0));
REPORTER_ASSERT(reporter, heap.alloc(35 * 1024, &alloc1));
REPORTER_ASSERT(reporter, heap.alloc(10 * 1024, &alloc2));
REPORTER_ASSERT(reporter, heap.freeSize() == 15 * 1024 && heap.largestBlockSize() == 15 * 1024);
// free starting block and merge with following
heap.free(alloc0);
REPORTER_ASSERT(reporter, heap.freeSize() == 19 * 1024 && heap.largestBlockSize() == 15 * 1024);
// free block and merge with preceding
heap.free(alloc1);
REPORTER_ASSERT(reporter, heap.freeSize() == 54 * 1024 && heap.largestBlockSize() == 39 * 1024);
// free block and merge with preceding and following
heap.free(alloc2);
REPORTER_ASSERT(reporter, heap.freeSize() == 64 * 1024 && heap.largestBlockSize() == 64 * 1024);
// fragment
REPORTER_ASSERT(reporter, heap.alloc(19 * 1024, &alloc0));
REPORTER_ASSERT(reporter, heap.alloc(5 * 1024, &alloc1));
REPORTER_ASSERT(reporter, heap.alloc(15 * 1024, &alloc2));
REPORTER_ASSERT(reporter, heap.alloc(3 * 1024, &alloc3));
REPORTER_ASSERT(reporter, heap.freeSize() == 22 * 1024 && heap.largestBlockSize() == 22 * 1024);
heap.free(alloc0);
REPORTER_ASSERT(reporter, heap.freeSize() == 41 * 1024 && heap.largestBlockSize() == 22 * 1024);
heap.free(alloc2);
REPORTER_ASSERT(reporter, heap.freeSize() == 56 * 1024 && heap.largestBlockSize() == 22 * 1024);
REPORTER_ASSERT(reporter, !heap.alloc(40 * 1024, &alloc0));
heap.free(alloc3);
REPORTER_ASSERT(reporter, heap.freeSize() == 59 * 1024 && heap.largestBlockSize() == 40 * 1024);
REPORTER_ASSERT(reporter, heap.alloc(40 * 1024, &alloc0));
REPORTER_ASSERT(reporter, heap.freeSize() == 19 * 1024 && heap.largestBlockSize() == 19 * 1024);
heap.free(alloc1);
REPORTER_ASSERT(reporter, heap.freeSize() == 24 * 1024 && heap.largestBlockSize() == 24 * 1024);
heap.free(alloc0);
REPORTER_ASSERT(reporter, heap.freeSize() == 64 * 1024 && heap.largestBlockSize() == 64 * 1024);
// unaligned sizes
REPORTER_ASSERT(reporter, heap.alloc(19 * 1024 - 31, &alloc0));
REPORTER_ASSERT(reporter, heap.alloc(5 * 1024 - 5, &alloc1));
REPORTER_ASSERT(reporter, heap.alloc(15 * 1024 - 19, &alloc2));
REPORTER_ASSERT(reporter, heap.alloc(3 * 1024 - 3, &alloc3));
REPORTER_ASSERT(reporter, heap.freeSize() == 22 * 1024 && heap.largestBlockSize() == 22 * 1024);
heap.free(alloc0);
REPORTER_ASSERT(reporter, heap.freeSize() == 41 * 1024 && heap.largestBlockSize() == 22 * 1024);
heap.free(alloc2);
REPORTER_ASSERT(reporter, heap.freeSize() == 56 * 1024 && heap.largestBlockSize() == 22 * 1024);
REPORTER_ASSERT(reporter, !heap.alloc(40 * 1024, &alloc0));
heap.free(alloc3);
REPORTER_ASSERT(reporter, heap.freeSize() == 59 * 1024 && heap.largestBlockSize() == 40 * 1024);
REPORTER_ASSERT(reporter, heap.alloc(40 * 1024, &alloc0));
REPORTER_ASSERT(reporter, heap.freeSize() == 19 * 1024 && heap.largestBlockSize() == 19 * 1024);
heap.free(alloc1);
REPORTER_ASSERT(reporter, heap.freeSize() == 24 * 1024 && heap.largestBlockSize() == 24 * 1024);
heap.free(alloc0);
REPORTER_ASSERT(reporter, heap.freeSize() == 64 * 1024 && heap.largestBlockSize() == 64 * 1024);
}
void suballoc_test(skiatest::Reporter* reporter, GrContext* context) {
GrVkGpu* gpu = static_cast<GrVkGpu*>(context->getGpu());
// heap index doesn't matter, we're just testing the allocation algorithm so we'll use 0
GrVkHeap heap(gpu, GrVkHeap::kSubAlloc_Strategy, 64 * 1024);
GrVkAlloc alloc0, alloc1, alloc2, alloc3;
const VkDeviceSize kAlignment = 16;
const uint32_t kHeapIndex = 0;
REPORTER_ASSERT(reporter, heap.allocSize() == 0 && heap.usedSize() == 0);
// fragment allocations so we need to grow heap
REPORTER_ASSERT(reporter, heap.alloc(19 * 1024 - 3, kAlignment, kHeapIndex, &alloc0));
REPORTER_ASSERT(reporter, heap.alloc(5 * 1024 - 9, kAlignment, kHeapIndex, &alloc1));
REPORTER_ASSERT(reporter, heap.alloc(15 * 1024 - 15, kAlignment, kHeapIndex, &alloc2));
REPORTER_ASSERT(reporter, heap.alloc(3 * 1024 - 6, kAlignment, kHeapIndex, &alloc3));
REPORTER_ASSERT(reporter, heap.allocSize() == 64 * 1024 && heap.usedSize() == 42 * 1024);
heap.free(alloc0);
REPORTER_ASSERT(reporter, heap.allocSize() == 64 * 1024 && heap.usedSize() == 23 * 1024);
heap.free(alloc2);
REPORTER_ASSERT(reporter, heap.allocSize() == 64 * 1024 && heap.usedSize() == 8 * 1024);
// we expect the heap to grow here
REPORTER_ASSERT(reporter, heap.alloc(40 * 1024, kAlignment, kHeapIndex, &alloc0));
REPORTER_ASSERT(reporter, heap.allocSize() == 128 * 1024 && heap.usedSize() == 48 * 1024);
heap.free(alloc3);
REPORTER_ASSERT(reporter, heap.allocSize() == 128 * 1024 && heap.usedSize() == 45 * 1024);
// heap should not grow here (first subheap has exactly enough room)
REPORTER_ASSERT(reporter, heap.alloc(40 * 1024, kAlignment, kHeapIndex, &alloc3));
REPORTER_ASSERT(reporter, heap.allocSize() == 128 * 1024 && heap.usedSize() == 85 * 1024);
// heap should not grow here (second subheap has room)
REPORTER_ASSERT(reporter, heap.alloc(22 * 1024, kAlignment, kHeapIndex, &alloc2));
REPORTER_ASSERT(reporter, heap.allocSize() == 128 * 1024 && heap.usedSize() == 107 * 1024);
heap.free(alloc1);
REPORTER_ASSERT(reporter, heap.allocSize() == 128 * 1024 && heap.usedSize() == 102 * 1024);
heap.free(alloc0);
REPORTER_ASSERT(reporter, heap.allocSize() == 128 * 1024 && heap.usedSize() == 62 * 1024);
heap.free(alloc2);
REPORTER_ASSERT(reporter, heap.allocSize() == 128 * 1024 && heap.usedSize() == 40 * 1024);
heap.free(alloc3);
REPORTER_ASSERT(reporter, heap.allocSize() == 128 * 1024 && heap.usedSize() == 0 * 1024);
// heap should not grow here (allocating more than subheap size)
REPORTER_ASSERT(reporter, heap.alloc(128 * 1024, kAlignment, kHeapIndex, &alloc0));
REPORTER_ASSERT(reporter, 0 == alloc0.fSize);
REPORTER_ASSERT(reporter, heap.allocSize() == 128 * 1024 && heap.usedSize() == 0 * 1024);
heap.free(alloc0);
}
void singlealloc_test(skiatest::Reporter* reporter, GrContext* context) {
GrVkGpu* gpu = static_cast<GrVkGpu*>(context->getGpu());
// heap index doesn't matter, we're just testing the allocation algorithm so we'll use 0
GrVkHeap heap(gpu, GrVkHeap::kSingleAlloc_Strategy, 64 * 1024);
GrVkAlloc alloc0, alloc1, alloc2, alloc3;
const VkDeviceSize kAlignment = 64;
const uint32_t kHeapIndex = 0;
REPORTER_ASSERT(reporter, heap.allocSize() == 0 && heap.usedSize() == 0);
// make a few allocations
REPORTER_ASSERT(reporter, heap.alloc(49 * 1024 - 3, kAlignment, kHeapIndex, &alloc0));
REPORTER_ASSERT(reporter, heap.alloc(5 * 1024 - 37, kAlignment, kHeapIndex, &alloc1));
REPORTER_ASSERT(reporter, heap.alloc(15 * 1024 - 11, kAlignment, kHeapIndex, &alloc2));
REPORTER_ASSERT(reporter, heap.alloc(3 * 1024 - 29, kAlignment, kHeapIndex, &alloc3));
REPORTER_ASSERT(reporter, heap.allocSize() == 72 * 1024 && heap.usedSize() == 72 * 1024);
heap.free(alloc0);
REPORTER_ASSERT(reporter, heap.allocSize() == 72 * 1024 && heap.usedSize() == 23 * 1024);
heap.free(alloc2);
REPORTER_ASSERT(reporter, heap.allocSize() == 72 * 1024 && heap.usedSize() == 8 * 1024);
// heap should not grow here (first subheap has room)
REPORTER_ASSERT(reporter, heap.alloc(40 * 1024, kAlignment, kHeapIndex, &alloc0));
REPORTER_ASSERT(reporter, heap.allocSize() == 72 * 1024 && heap.usedSize() == 48 * 1024);
heap.free(alloc3);
REPORTER_ASSERT(reporter, heap.allocSize() == 72 * 1024 && heap.usedSize() == 45 * 1024);
// check for exact fit -- heap should not grow here (third subheap has room)
REPORTER_ASSERT(reporter, heap.alloc(15 * 1024 - 63, kAlignment, kHeapIndex, &alloc2));
REPORTER_ASSERT(reporter, heap.allocSize() == 72 * 1024 && heap.usedSize() == 60 * 1024);
heap.free(alloc2);
REPORTER_ASSERT(reporter, heap.allocSize() == 72 * 1024 && heap.usedSize() == 45 * 1024);
// heap should grow here (no subheap has room)
REPORTER_ASSERT(reporter, heap.alloc(40 * 1024, kAlignment, kHeapIndex, &alloc3));
REPORTER_ASSERT(reporter, heap.allocSize() == 112 * 1024 && heap.usedSize() == 85 * 1024);
heap.free(alloc1);
REPORTER_ASSERT(reporter, heap.allocSize() == 112 * 1024 && heap.usedSize() == 80 * 1024);
heap.free(alloc0);
REPORTER_ASSERT(reporter, heap.allocSize() == 112 * 1024 && heap.usedSize() == 40 * 1024);
heap.free(alloc3);
REPORTER_ASSERT(reporter, heap.allocSize() == 112 * 1024 && heap.usedSize() == 0 * 1024);
}
DEF_GPUTEST_FOR_VULKAN_CONTEXT(VkHeapTests, reporter, ctxInfo) {
subheap_test(reporter, ctxInfo.grContext());
suballoc_test(reporter, ctxInfo.grContext());
singlealloc_test(reporter, ctxInfo.grContext());
}
#endif