/* * 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 GrRenderTargetContextPriv_DEFINED #define GrRenderTargetContextPriv_DEFINED #include "src/gpu/GrPathRendering.h" #include "src/gpu/GrRenderTargetContext.h" #include "src/gpu/GrRenderTargetOpList.h" class GrFixedClip; class GrHardClip; class GrPath; class GrRenderTargetPriv; struct GrUserStencilSettings; /** Class that adds methods to GrRenderTargetContext that are only intended for use internal to Skia. This class is purely a privileged window into GrRenderTargetContext. It should never have additional data members or virtual methods. */ class GrRenderTargetContextPriv { public: // called to note the last clip drawn to the stencil buffer. // TODO: remove after clipping overhaul. void setLastClip(uint32_t clipStackGenID, const SkIRect& devClipBounds, int numClipAnalyticFPs) { GrRenderTargetOpList* opList = fRenderTargetContext->getRTOpList(); opList->fLastClipStackGenID = clipStackGenID; opList->fLastDevClipBounds = devClipBounds; opList->fLastClipNumAnalyticFPs = numClipAnalyticFPs; } // called to determine if we have to render the clip into SB. // TODO: remove after clipping overhaul. bool mustRenderClip(uint32_t clipStackGenID, const SkIRect& devClipBounds, int numClipAnalyticFPs) const { GrRenderTargetOpList* opList = fRenderTargetContext->getRTOpList(); return opList->fLastClipStackGenID != clipStackGenID || !opList->fLastDevClipBounds.contains(devClipBounds) || opList->fLastClipNumAnalyticFPs != numClipAnalyticFPs; } using CanClearFullscreen = GrRenderTargetContext::CanClearFullscreen; void clear(const GrFixedClip&, const SkPMColor4f&, CanClearFullscreen); void clearStencilClip(const GrFixedClip&, bool insideStencilMask); /* * Some portions of the code, which use approximate-match rendertargets (i.e., ImageFilters), * rely on clears that lie outside of the content region to still have an effect. * For example, when sampling a decimated blurred image back up to full size, the GaussianBlur * code draws 1-pixel rects along the left and bottom edges to be able to use bilerp for * upsampling. The "absClear" entry point ignores the content bounds but does use the * worst case (instantiated) bounds. * * @param rect if (!null) the rect to clear, otherwise it is a full screen clear * @param color the color to clear to */ void absClear(const SkIRect* rect, const SkPMColor4f& color); // While this can take a general clip, since GrReducedClip relies on this function, it must take // care to only provide hard clips or we could get stuck in a loop. The general clip is needed // so that path renderers can use this function. void stencilRect( const GrClip& clip, const GrUserStencilSettings* ss, GrPaint&& paint, GrAA doStencilMSAA, const SkMatrix& viewMatrix, const SkRect& rect, const SkMatrix* localMatrix = nullptr) { // Since this provides stencil settings to drawFilledQuad, it performs a different AA type // resolution compared to regular rect draws, which is the main reason it remains separate. GrQuad localQuad = localMatrix ? GrQuad::MakeFromRect(rect, *localMatrix) : GrQuad(rect); fRenderTargetContext->drawFilledQuad( clip, std::move(paint), doStencilMSAA, GrQuadAAFlags::kNone, GrQuad::MakeFromRect(rect, viewMatrix), localQuad, ss); } void stencilPath( const GrHardClip&, GrAA doStencilMSAA, const SkMatrix& viewMatrix, const GrPath*); /** * Draws a path, either AA or not, and touches the stencil buffer with the user stencil settings * for each color sample written. */ bool drawAndStencilPath(const GrHardClip&, const GrUserStencilSettings*, SkRegion::Op op, bool invert, GrAA doStencilMSAA, const SkMatrix& viewMatrix, const SkPath&); SkBudgeted isBudgeted() const; int maxWindowRectangles() const; /* * This unique ID will not change for a given RenderTargetContext. However, it is _NOT_ * guaranteed to match the uniqueID of the underlying GrRenderTarget - beware! */ GrSurfaceProxy::UniqueID uniqueID() const { return fRenderTargetContext->fRenderTargetProxy->uniqueID(); } uint32_t testingOnly_getOpListID(); using WillAddOpFn = GrRenderTargetContext::WillAddOpFn; void testingOnly_addDrawOp(std::unique_ptr); void testingOnly_addDrawOp(const GrClip&, std::unique_ptr, const std::function& = std::function()); bool refsWrappedObjects() const { return fRenderTargetContext->fRenderTargetProxy->refsWrappedObjects(); } private: explicit GrRenderTargetContextPriv(GrRenderTargetContext* renderTargetContext) : fRenderTargetContext(renderTargetContext) {} GrRenderTargetContextPriv(const GrRenderTargetPriv&) {} // unimpl GrRenderTargetContextPriv& operator=(const GrRenderTargetPriv&); // unimpl // No taking addresses of this type. const GrRenderTargetContextPriv* operator&() const; GrRenderTargetContextPriv* operator&(); GrRenderTargetContext* fRenderTargetContext; friend class GrRenderTargetContext; // to construct/copy this type. }; inline GrRenderTargetContextPriv GrRenderTargetContext::priv() { return GrRenderTargetContextPriv(this); } inline const GrRenderTargetContextPriv GrRenderTargetContext::priv() const { return GrRenderTargetContextPriv(const_cast(this)); } #endif