/* * Copyright 2015 Google Inc. * * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #ifndef GrRenderTargetPriv_DEFINED #define GrRenderTargetPriv_DEFINED #include "include/gpu/GrRenderTarget.h" #include "src/gpu/GrGpu.h" class GrStencilSettings; /** Class that adds methods to GrRenderTarget that are only intended for use internal to Skia. This class is purely a privileged window into GrRenderTarget. It should never have additional data members or virtual methods. */ class GrRenderTargetPriv { public: /** * GrStencilAttachment is not part of the public API. */ GrStencilAttachment* getStencilAttachment() const { return fRenderTarget->fStencilAttachment.get(); } /** * Attaches the GrStencilAttachment onto the render target. If stencil is a nullptr then the * currently attached GrStencilAttachment will be removed if one was previously attached. This * function returns false if there were any failure in attaching the GrStencilAttachment. */ void attachStencilAttachment(sk_sp stencil); int numStencilBits() const; /** * Returns a unique key that identifies this render target's sample pattern. (Must be * multisampled.) */ int getSamplePatternKey() const; /** * Retrieves the per-pixel HW sample locations for this render target, and, as a by-product, the * actual number of samples in use. (This may differ from fSampleCnt.) Sample locations are * returned as 0..1 offsets relative to the top-left corner of the pixel. */ const SkTArray& getSampleLocations() const { int samplePatternKey = this->getSamplePatternKey(); return fRenderTarget->getGpu()->retrieveSampleLocations(samplePatternKey); } private: explicit GrRenderTargetPriv(GrRenderTarget* renderTarget) : fRenderTarget(renderTarget) {} GrRenderTargetPriv(const GrRenderTargetPriv&) {} // unimpl GrRenderTargetPriv& operator=(const GrRenderTargetPriv&); // unimpl // No taking addresses of this type. const GrRenderTargetPriv* operator&() const; GrRenderTargetPriv* operator&(); GrRenderTarget* fRenderTarget; friend class GrRenderTarget; // to construct/copy this type. }; inline GrRenderTargetPriv GrRenderTarget::renderTargetPriv() { return GrRenderTargetPriv(this); } inline const GrRenderTargetPriv GrRenderTarget::renderTargetPriv () const { return GrRenderTargetPriv(const_cast(this)); } #endif