81 lines
2.1 KiB
C
81 lines
2.1 KiB
C
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/*
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* Copyright 2020 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef VkYcbcrSamplerHelper_DEFINED
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#define VkYcbcrSamplerHelper_DEFINED
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#include "include/core/SkTypes.h"
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#ifdef SK_VULKAN
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#include "include/core/SkRefCnt.h"
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#include "include/gpu/GrBackendSurface.h"
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#include "include/gpu/vk/GrVkBackendContext.h"
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#include "include/gpu/vk/GrVkExtensions.h"
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class GrContext;
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class SkImage;
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#define DECLARE_VK_PROC(name) PFN_vk##name fVk##name
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class VkYcbcrSamplerHelper {
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public:
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VkYcbcrSamplerHelper();
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~VkYcbcrSamplerHelper();
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bool init();
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bool isYCbCrSupported() const;
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sk_sp<SkImage> createI420Image(uint32_t width, uint32_t height);
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GrContext* getGrContext() { return fGrContext.get(); }
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static int GetExpectedY(int x, int y, int width, int height);
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static std::pair<int, int> GetExpectedUV(int x, int y, int width, int height);
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private:
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GrVkExtensions fExtensions;
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VkPhysicalDeviceFeatures2 fFeatures = {};
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VkDebugReportCallbackEXT fDebugCallback = VK_NULL_HANDLE;
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DECLARE_VK_PROC(DestroyInstance);
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DECLARE_VK_PROC(DeviceWaitIdle);
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DECLARE_VK_PROC(DestroyDevice);
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DECLARE_VK_PROC(GetPhysicalDeviceFormatProperties);
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DECLARE_VK_PROC(GetPhysicalDeviceMemoryProperties);
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DECLARE_VK_PROC(CreateImage);
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DECLARE_VK_PROC(DestroyImage);
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DECLARE_VK_PROC(GetImageMemoryRequirements);
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DECLARE_VK_PROC(AllocateMemory);
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DECLARE_VK_PROC(FreeMemory);
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DECLARE_VK_PROC(BindImageMemory);
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DECLARE_VK_PROC(MapMemory);
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DECLARE_VK_PROC(UnmapMemory);
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DECLARE_VK_PROC(FlushMappedMemoryRanges);
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DECLARE_VK_PROC(GetImageSubresourceLayout);
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VkDevice fDevice = VK_NULL_HANDLE;
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PFN_vkDestroyDebugReportCallbackEXT fDestroyDebugCallback = nullptr;
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GrVkBackendContext fBackendContext;
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sk_sp<GrContext> fGrContext;
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VkImage fImage = VK_NULL_HANDLE;
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VkDeviceMemory fImageMemory = VK_NULL_HANDLE;
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GrBackendTexture fTexture;
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};
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#undef DECLARE_VK_PROC
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#endif // SK_VULKAN
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#endif // VkYcbcrSamplerHelper_DEFINED
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