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path: root/src/gpu/vk/GrVkGpuCommandBuffer.h
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/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/

#ifndef GrVkGpuCommandBuffer_DEFINED
#define GrVkGpuCommandBuffer_DEFINED

#include "GrGpuCommandBuffer.h"

#include "GrColor.h"
#include "GrMesh.h"
#include "GrTypes.h"
#include "GrVkPipelineState.h"

class GrVkGpu;
class GrVkImage;
class GrVkRenderPass;
class GrVkRenderTarget;
class GrVkSecondaryCommandBuffer;

class GrVkGpuTextureCommandBuffer : public GrGpuTextureCommandBuffer {
public:
    GrVkGpuTextureCommandBuffer(GrVkGpu* gpu, GrTexture* texture, GrSurfaceOrigin origin)
        : INHERITED(texture, origin)
        , fGpu(gpu) {
    }

    ~GrVkGpuTextureCommandBuffer() override;

    void copy(GrSurface* src, GrSurfaceOrigin srcOrigin, const SkIRect& srcRect,
              const SkIPoint& dstPoint) override;

    void insertEventMarker(const char*) override;

private:
    void submit() override;

    struct CopyInfo {
        CopyInfo(GrSurface* src, GrSurfaceOrigin srcOrigin, const SkIRect& srcRect,
                 const SkIPoint& dstPoint)
            : fSrc(src), fSrcOrigin(srcOrigin), fSrcRect(srcRect), fDstPoint(dstPoint) {}

        GrSurface*      fSrc;
        GrSurfaceOrigin fSrcOrigin;
        SkIRect         fSrcRect;
        SkIPoint        fDstPoint;
    };

    GrVkGpu*                    fGpu;
    SkTArray<CopyInfo>          fCopies;

    typedef GrGpuTextureCommandBuffer INHERITED;
};

class GrVkGpuRTCommandBuffer : public GrGpuRTCommandBuffer, private GrMesh::SendToGpuImpl {
public:
    GrVkGpuRTCommandBuffer(GrVkGpu*, GrRenderTarget*, GrSurfaceOrigin,
                           const LoadAndStoreInfo&,
                           const StencilLoadAndStoreInfo&);

    ~GrVkGpuRTCommandBuffer() override;

    void begin() override { }
    void end() override;

    void discard() override;
    void insertEventMarker(const char*) override;

    void inlineUpload(GrOpFlushState* state, GrDeferredTextureUploadFn& upload) override;

    void copy(GrSurface* src, GrSurfaceOrigin srcOrigin, const SkIRect& srcRect,
              const SkIPoint& dstPoint) override;

    void submit() override;

private:
    void init();

    GrGpu* gpu() override;

    // Bind vertex and index buffers
    void bindGeometry(const GrPrimitiveProcessor&,
                      const GrBuffer* indexBuffer,
                      const GrBuffer* vertexBuffer,
                      const GrBuffer* instanceBuffer);

    GrVkPipelineState* prepareDrawState(const GrPipeline&,
                                        const GrPrimitiveProcessor&,
                                        GrPrimitiveType,
                                        bool hasDynamicState);

    void onDraw(const GrPipeline& pipeline,
                const GrPrimitiveProcessor& primProc,
                const GrMesh mesh[],
                const GrPipeline::DynamicState[],
                int meshCount,
                const SkRect& bounds) override;

    // GrMesh::SendToGpuImpl methods. These issue the actual Vulkan draw commands.
    // Marked final as a hint to the compiler to not use virtual dispatch.
    void sendMeshToGpu(const GrPrimitiveProcessor& primProc, GrPrimitiveType primType,
                       const GrBuffer* vertexBuffer, int vertexCount, int baseVertex) final {
        this->sendInstancedMeshToGpu(primProc, primType, vertexBuffer, vertexCount, baseVertex,
                                     nullptr, 1, 0);
    }

    void sendIndexedMeshToGpu(const GrPrimitiveProcessor& primProc, GrPrimitiveType primType,
                              const GrBuffer* indexBuffer, int indexCount, int baseIndex,
                              uint16_t /*minIndexValue*/, uint16_t /*maxIndexValue*/,
                              const GrBuffer* vertexBuffer, int baseVertex) final {
        this->sendIndexedInstancedMeshToGpu(primProc, primType, indexBuffer, indexCount, baseIndex,
                                            vertexBuffer, baseVertex, nullptr, 1, 0);
    }

    void sendInstancedMeshToGpu(const GrPrimitiveProcessor&, GrPrimitiveType,
                                const GrBuffer* vertexBuffer, int vertexCount, int baseVertex,
                                const GrBuffer* instanceBuffer, int instanceCount,
                                int baseInstance) final;

    void sendIndexedInstancedMeshToGpu(const GrPrimitiveProcessor&, GrPrimitiveType,
                                       const GrBuffer* indexBuffer, int indexCount, int baseIndex,
                                       const GrBuffer* vertexBuffer, int baseVertex,
                                       const GrBuffer* instanceBuffer, int instanceCount,
                                       int baseInstance) final;

    void onClear(const GrFixedClip&, GrColor color) override;

    void onClearStencilClip(const GrFixedClip&, bool insideStencilMask) override;

    void addAdditionalCommandBuffer();
    void addAdditionalRenderPass();

    struct InlineUploadInfo {
        InlineUploadInfo(GrOpFlushState* state, const GrDeferredTextureUploadFn& upload)
                : fFlushState(state), fUpload(upload) {}

        GrOpFlushState* fFlushState;
        GrDeferredTextureUploadFn fUpload;
    };

    struct CopyInfo {
        CopyInfo(GrSurface* src, GrSurfaceOrigin srcOrigin, const SkIRect& srcRect,
                 const SkIPoint& dstPoint)
            : fSrc(src), fSrcOrigin(srcOrigin), fSrcRect(srcRect), fDstPoint(dstPoint) {}

        GrSurface*      fSrc;
        GrSurfaceOrigin fSrcOrigin;
        SkIRect         fSrcRect;
        SkIPoint        fDstPoint;
    };

    struct CommandBufferInfo {
        const GrVkRenderPass*                  fRenderPass;
        SkTArray<GrVkSecondaryCommandBuffer*>  fCommandBuffers;
        VkClearValue                           fColorClearValue;
        SkRect                                 fBounds;
        bool                                   fIsEmpty;
        bool                                   fStartsWithClear;
        // The PreDrawUploads and PreCopies are sent to the GPU before submitting the secondary
        // command buffer.
        SkTArray<InlineUploadInfo>             fPreDrawUploads;
        SkTArray<CopyInfo>                     fPreCopies;

        GrVkSecondaryCommandBuffer* currentCmdBuf() {
            return fCommandBuffers.back();
        }
    };

    SkTArray<CommandBufferInfo> fCommandBufferInfos;
    int                         fCurrentCmdInfo;

    GrVkGpu*                    fGpu;
    VkAttachmentLoadOp          fVkColorLoadOp;
    VkAttachmentStoreOp         fVkColorStoreOp;
    VkAttachmentLoadOp          fVkStencilLoadOp;
    VkAttachmentStoreOp         fVkStencilStoreOp;
    GrColor4f                   fClearColor;
    GrVkPipelineState*          fLastPipelineState;

    typedef GrGpuRTCommandBuffer INHERITED;
};

#endif