123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156 |
- /*
- * 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 GrGpuCommandBuffer_DEFINED
- #define GrGpuCommandBuffer_DEFINED
- #include "include/core/SkDrawable.h"
- #include "src/gpu/GrPipeline.h"
- #include "src/gpu/ops/GrDrawOp.h"
- class GrOpFlushState;
- class GrFixedClip;
- class GrGpu;
- class GrMesh;
- class GrPipeline;
- class GrPrimitiveProcessor;
- class GrRenderTarget;
- class GrSemaphore;
- struct SkIRect;
- struct SkRect;
- class GrGpuRTCommandBuffer;
- class GrGpuCommandBuffer {
- public:
- virtual ~GrGpuCommandBuffer() {}
- // Copy src into current surface owned by either a GrGpuTextureCommandBuffer or
- // GrGpuRenderTargetCommandBuffer. The srcRect and dstPoint must be in dst coords and have
- // already been adjusted for any origin flips.
- virtual void copy(GrSurface* src, const SkIRect& srcRect, const SkIPoint& dstPoint) = 0;
- // Initiates a transfer from the surface owned by the command buffer to the GrGpuBuffer.
- virtual void transferFrom(const SkIRect& srcRect, GrColorType bufferColorType,
- GrGpuBuffer* transferBuffer, size_t offset) = 0;
- virtual void insertEventMarker(const char*) = 0;
- virtual GrGpuRTCommandBuffer* asRTCommandBuffer() { return nullptr; }
- };
- class GrGpuTextureCommandBuffer : public GrGpuCommandBuffer{
- public:
- void set(GrTexture* texture, GrSurfaceOrigin origin) {
- SkASSERT(!fTexture);
- fTexture = texture;
- }
- protected:
- GrGpuTextureCommandBuffer() : fTexture(nullptr) {}
- GrGpuTextureCommandBuffer(GrTexture* texture, GrSurfaceOrigin origin) : fTexture(texture) {}
- GrTexture* fTexture;
- private:
- typedef GrGpuCommandBuffer INHERITED;
- };
- /**
- * The GrGpuRenderTargetCommandBuffer is a series of commands (draws, clears, and discards), which
- * all target the same render target. It is possible that these commands execute immediately (GL),
- * or get buffered up for later execution (Vulkan). GrOps will execute their draw commands into a
- * GrGpuCommandBuffer.
- */
- class GrGpuRTCommandBuffer : public GrGpuCommandBuffer {
- public:
- struct LoadAndStoreInfo {
- GrLoadOp fLoadOp;
- GrStoreOp fStoreOp;
- SkPMColor4f fClearColor;
- };
- // Load-time clears of the stencil buffer are always to 0 so we don't store
- // an 'fStencilClearValue'
- struct StencilLoadAndStoreInfo {
- GrLoadOp fLoadOp;
- GrStoreOp fStoreOp;
- };
- GrGpuRTCommandBuffer* asRTCommandBuffer() { return this; }
- virtual void begin() = 0;
- // Signals the end of recording to the command buffer and that it can now be submitted.
- virtual void end() = 0;
- // We pass in an array of meshCount GrMesh to the draw. The backend should loop over each
- // GrMesh object and emit a draw for it. Each draw will use the same GrPipeline and
- // GrPrimitiveProcessor. This may fail if the draw would exceed any resource limits (e.g.
- // number of vertex attributes is too large).
- bool draw(const GrPrimitiveProcessor&,
- const GrPipeline&,
- const GrPipeline::FixedDynamicState*,
- const GrPipeline::DynamicStateArrays*,
- const GrMesh[],
- int meshCount,
- const SkRect& bounds);
- // Performs an upload of vertex data in the middle of a set of a set of draws
- virtual void inlineUpload(GrOpFlushState*, GrDeferredTextureUploadFn&) = 0;
- /**
- * Clear the owned render target. Ignores the draw state and clip.
- */
- void clear(const GrFixedClip&, const SkPMColor4f&);
- void clearStencilClip(const GrFixedClip&, bool insideStencilMask);
- /**
- * Executes the SkDrawable object for the underlying backend.
- */
- virtual void executeDrawable(std::unique_ptr<SkDrawable::GpuDrawHandler>) {}
- protected:
- GrGpuRTCommandBuffer() : fOrigin(kTopLeft_GrSurfaceOrigin), fRenderTarget(nullptr) {}
- GrGpuRTCommandBuffer(GrRenderTarget* rt, GrSurfaceOrigin origin)
- : fOrigin(origin)
- , fRenderTarget(rt) {
- }
- void set(GrRenderTarget* rt, GrSurfaceOrigin origin) {
- SkASSERT(!fRenderTarget);
- fRenderTarget = rt;
- fOrigin = origin;
- }
- GrSurfaceOrigin fOrigin;
- GrRenderTarget* fRenderTarget;
- private:
- virtual GrGpu* gpu() = 0;
- // overridden by backend-specific derived class to perform the draw call.
- virtual void onDraw(const GrPrimitiveProcessor&,
- const GrPipeline&,
- const GrPipeline::FixedDynamicState*,
- const GrPipeline::DynamicStateArrays*,
- const GrMesh[],
- int meshCount,
- const SkRect& bounds) = 0;
- // overridden by backend-specific derived class to perform the clear.
- virtual void onClear(const GrFixedClip&, const SkPMColor4f&) = 0;
- virtual void onClearStencilClip(const GrFixedClip&, bool insideStencilMask) = 0;
- typedef GrGpuCommandBuffer INHERITED;
- };
- #endif
|