GrMtlOpsRenderPass.h

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/*
 * Copyright 2018 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */
 
#ifndef GrMtlOpsRenderPass_DEFINED
#define GrMtlOpsRenderPass_DEFINED
 
#include "src/gpu/ganesh/GrOpFlushState.h"
#include "src/gpu/ganesh/GrOpsRenderPass.h"
#include "src/gpu/ganesh/mtl/GrMtlGpu.h"
 
#import <Metal/Metal.h>
 
typedef uint32_t GrColor;
class GrMtlBuffer;
class GrMtlFramebuffer;
class GrMtlPipelineState;
class GrMtlRenderCommandEncoder;
class GrMtlRenderTarget;
 
class GrMtlOpsRenderPass : public GrOpsRenderPass {
public:
    GrMtlOpsRenderPass(GrMtlGpu* gpu, GrRenderTarget* rt, sk_sp<GrMtlFramebuffer>,
                       GrSurfaceOrigin origin, const GrOpsRenderPass::LoadAndStoreInfo& colorInfo,
                       const GrOpsRenderPass::StencilLoadAndStoreInfo& stencilInfo);
 
    ~GrMtlOpsRenderPass() override;
 
    void initRenderState(GrMtlRenderCommandEncoder*);
 
    void inlineUpload(GrOpFlushState* state, GrDeferredTextureUploadFn& upload) override;
    void submit();
 
private:
    GrGpu* gpu() override { return fGpu; }
 
    bool onBindPipeline(const GrProgramInfo&, const SkRect& drawBounds) override;
    void onSetScissorRect(const SkIRect&) override;
    bool onBindTextures(const GrGeometryProcessor&,
                        const GrSurfaceProxy* const geomProcTextures[],
                        const GrPipeline&) override;
    void onBindBuffers(sk_sp<const GrBuffer> indexBuffer, sk_sp<const GrBuffer> instanceBuffer,
                       sk_sp<const GrBuffer> vertexBuffer, GrPrimitiveRestart) override;
    void onDraw(int vertexCount, int baseVertex) override;
    void onDrawIndexed(int indexCount, int baseIndex, uint16_t minIndexValue,
                       uint16_t maxIndexValue, int baseVertex) override;
    void onDrawInstanced(int instanceCount, int baseInstance, int vertexCount,
                         int baseVertex) override;
    void onDrawIndexedInstanced(int indexCount, int baseIndex, int instanceCount, int baseInstance,
                                int baseVertex) override;
    void onDrawIndirect(const GrBuffer* drawIndirectBuffer, size_t bufferOffset,
                        int drawCount) override;
    void onDrawIndexedIndirect(const GrBuffer* drawIndirectBuffer, size_t bufferOffset,
                               int drawCount) override;
 
    void onClear(const GrScissorState& scissor, std::array<float, 4> color) override;
 
    void onClearStencilClip(const GrScissorState& scissor, bool insideStencilMask) override;
 
    void setupRenderPass(const GrOpsRenderPass::LoadAndStoreInfo& colorInfo,
                         const GrOpsRenderPass::StencilLoadAndStoreInfo& stencilInfo);
 
    void setVertexBuffer(GrMtlRenderCommandEncoder*, const GrBuffer*, size_t offset,
                         size_t inputBufferIndex);
 
    bool setupResolve();
    void setupRenderCommandEncoder(GrMtlPipelineState*);
 
    GrMtlGpu*                   fGpu;
 
    sk_sp<GrMtlFramebuffer>     fFramebuffer;
    GrMtlRenderCommandEncoder*  fActiveRenderCmdEncoder;
    GrMtlPipelineState*         fActivePipelineState = nullptr;
    MTLPrimitiveType            fActivePrimitiveType;
    MTLRenderPassDescriptor*    fRenderPassDesc;
    SkRect                      fBounds;
    size_t                      fCurrentVertexStride;
#ifdef SK_ENABLE_MTL_DEBUG_INFO
    bool                        fDebugGroupActive = false;
#endif
 
    using INHERITED = GrOpsRenderPass;
};
 
#endif