| /* |
| * Copyright 2022 Google LLC |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef skgpu_graphite_VulkanBuffer_DEFINED |
| #define skgpu_graphite_VulkanBuffer_DEFINED |
| |
| #include "include/gpu/vk/VulkanMemoryAllocator.h" |
| #include "src/gpu/graphite/Buffer.h" |
| #include "src/gpu/graphite/vk/VulkanSharedContext.h" |
| |
| namespace skgpu::graphite { |
| |
| class VulkanCommandBuffer; |
| |
| class VulkanBuffer final : public Buffer { |
| public: |
| static sk_sp<Buffer> Make(const VulkanSharedContext*, size_t, BufferType, AccessPattern); |
| void freeGpuData() override; |
| VkBuffer vkBuffer() const { return fBuffer; } |
| VkBufferUsageFlags bufferUsageFlags() const { return fBufferUsageFlags; } |
| |
| void setBufferAccess(VulkanCommandBuffer* buffer, |
| VkAccessFlags dstAccessMask, |
| VkPipelineStageFlags dstStageMask) const; |
| |
| private: |
| VulkanBuffer(const VulkanSharedContext*, |
| size_t, |
| BufferType, |
| AccessPattern, |
| VkBuffer, |
| const skgpu::VulkanAlloc&, |
| VkBufferUsageFlags); |
| |
| void onMap() override; |
| void onUnmap() override; |
| |
| void internalMap(size_t readOffset, size_t readSize); |
| void internalUnmap(size_t flushOffset, size_t flushSize); |
| |
| bool isMappable() const { return fAlloc.fFlags & skgpu::VulkanAlloc::kMappable_Flag; } |
| |
| const VulkanSharedContext* vulkanSharedContext() const { |
| return static_cast<const VulkanSharedContext*>(this->sharedContext()); |
| } |
| |
| static VkPipelineStageFlags AccessMaskToPipelineSrcStageFlags(const VkAccessFlags accessFlags); |
| |
| VkBuffer fBuffer; |
| skgpu::VulkanAlloc fAlloc; |
| const VkBufferUsageFlags fBufferUsageFlags; |
| mutable VkAccessFlags fCurrentAccessMask = 0; |
| |
| /** |
| * Buffers can either be mapped for: |
| * 1) Reading from the CPU (The effect of writing would be undefined) |
| * 2) Writing from the CPU (The existing contents are discarded. Even in the case where the |
| * initial contents are overwritten, CPU reads should be avoided for performance reasons as |
| * the memory may not be cached). |
| */ |
| bool fBufferUsedForCPURead = false; |
| }; |
| |
| } // namespace skgpu::graphite |
| |
| #endif // skgpu_graphite_VulkanBuffer_DEFINED |
| |