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vulkan: implement graphics readback

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niki
2022-08-30 17:11:59 +02:00
parent a69d4a38dd
commit ec5a3a50f9
7 changed files with 287 additions and 57 deletions
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src/modules/graphics/vulkan/Graphics.h
+16 -11
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@@ -219,11 +219,16 @@ public:
void draw(const DrawIndexedCommand& cmd) override;
void drawQuads(int start, int count, const VertexAttributes& attributes, const BufferBindings& buffers, graphics::Texture* texture) override;
GraphicsReadback* newReadbackInternal(ReadbackMethod method, love::graphics::Buffer* buffer, size_t offset, size_t size, data::ByteData* dest, size_t destoffset) override { return nullptr; };
GraphicsReadback* newReadbackInternal(ReadbackMethod method, love::graphics::Texture* texture, int slice, int mipmap, const Rect& rect, image::ImageData* dest, int destx, int desty) override { return nullptr; }
graphics::GraphicsReadback* newReadbackInternal(ReadbackMethod method, love::graphics::Buffer* buffer, size_t offset, size_t size, data::ByteData* dest, size_t destoffset) override;
graphics::GraphicsReadback* newReadbackInternal(ReadbackMethod method, love::graphics::Texture* texture, int slice, int mipmap, const Rect& rect, image::ImageData* dest, int destx, int desty) override;
VkCommandBuffer getDataTransferCommandBuffer();
VkCommandBuffer getReadbackCommandBuffer();
void queueCleanUp(std::function<void()> cleanUp);
void addReadbackCallback(const std::function<void()> &callback);
void submitGpuCommands(bool present);
uint32_t getNumImagesInFlight() const;
const VkDeviceSize getMinUniformBufferOffsetAlignment() const;
@@ -231,12 +236,8 @@ public:
VkSampler getCachedSampler(const SamplerState&);
protected:
graphics::ShaderStage* newShaderStageInternal(ShaderStageType stage, const std::string& cachekey, const std::string& source, bool gles) override {
return new ShaderStage(this, stage, source, gles, cachekey);
}
graphics::Shader* newShaderInternal(StrongRef<love::graphics::ShaderStage> stages[SHADERSTAGE_MAX_ENUM]) override {
return new Shader(stages);
}
graphics::ShaderStage* newShaderStageInternal(ShaderStageType stage, const std::string& cachekey, const std::string& source, bool gles) override;
graphics::Shader* newShaderInternal(StrongRef<love::graphics::ShaderStage> stages[SHADERSTAGE_MAX_ENUM]) override;
graphics::StreamBuffer* newStreamBuffer(BufferUsage type, size_t size) override;
bool dispatch(int x, int y, int z) override { return false; }
void initCapabilities() override;
@@ -280,8 +281,9 @@ private:
void cleanupSwapChain();
void recreateSwapChain();
void initDynamicState();
void startRecordingGraphicsCommands();
void endRecordingGraphicsCommands();
void beginFrame();
void startRecordingGraphicsCommands(bool newFrame);
void endRecordingGraphicsCommands(bool present);
void ensureGraphicsPipelineConfiguration(GraphicsPipelineConfiguration);
graphics::Shader::BuiltinUniformData getCurrentBuiltinUniformData();
void updatedBatchedDrawBuffers();
@@ -329,13 +331,15 @@ private:
std::unordered_map<GraphicsPipelineConfiguration, VkPipeline, GraphicsPipelineConfigurationHasher> graphicsPipelines;
std::unordered_map<SamplerState, VkSampler, SamplerStateHasher> samplers;
VkCommandPool commandPool = VK_NULL_HANDLE;
std::vector<VkCommandBuffer> commandBuffers;
std::vector<VkCommandBuffer> dataTransferCommandBuffers;
std::vector<VkCommandBuffer> commandBuffers;
std::vector<VkCommandBuffer> readbackCommandBuffers;
std::vector<VkSemaphore> imageAvailableSemaphores;
std::vector<VkSemaphore> renderFinishedSemaphores;
std::vector<VkFence> inFlightFences;
std::vector<VkFence> imagesInFlight;
VkDeviceSize minUniformBufferOffsetAlignment = 0;
bool imageRequested = false;
size_t currentFrame = 0;
uint32_t imageIndex = 0;
bool framebufferResized = false;
@@ -347,6 +351,7 @@ private:
// functions that need to be called to cleanup objects that were needed for rendering a frame.
// just like batchedDrawBuffers we need a vector for each frame in flight.
std::vector<std::vector<std::function<void()>>> cleanUpFunctions;
std::vector<std::vector<std::function<void()>>> readbackCallbacks;
// render pass variables.
std::optional<std::function<void()>> postRenderPass;