michael@0: 
michael@0: /*
michael@0:  * Copyright 2013 Google Inc.
michael@0:  *
michael@0:  * Use of this source code is governed by a BSD-style license that can be
michael@0:  * found in the LICENSE file.
michael@0:  */
michael@0: #ifndef GrDrawTargetCaps_DEFINED
michael@0: #define GrDrawTargetCaps_DEFINED
michael@0: 
michael@0: #include "GrTypes.h"
michael@0: #include "SkRefCnt.h"
michael@0: #include "SkString.h"
michael@0: 
michael@0: /**
michael@0:  * Represents the draw target capabilities.
michael@0:  */
michael@0: class GrDrawTargetCaps : public SkRefCnt {
michael@0: public:
michael@0:     SK_DECLARE_INST_COUNT(Caps)
michael@0: 
michael@0:     GrDrawTargetCaps() { this->reset(); }
michael@0:     GrDrawTargetCaps(const GrDrawTargetCaps& other) : INHERITED() { *this = other; }
michael@0:     GrDrawTargetCaps& operator= (const GrDrawTargetCaps&);
michael@0: 
michael@0:     virtual void reset();
michael@0:     virtual SkString dump() const;
michael@0: 
michael@0:     bool eightBitPaletteSupport() const { return f8BitPaletteSupport; }
michael@0:     bool npotTextureTileSupport() const { return fNPOTTextureTileSupport; }
michael@0:     /** To avoid as-yet-unnecessary complexity we don't allow any partial support of MIP Maps (e.g.
michael@0:         only for POT textures) */
michael@0:     bool mipMapSupport() const { return fMipMapSupport; }
michael@0:     bool twoSidedStencilSupport() const { return fTwoSidedStencilSupport; }
michael@0:     bool stencilWrapOpsSupport() const { return  fStencilWrapOpsSupport; }
michael@0:     bool hwAALineSupport() const { return fHWAALineSupport; }
michael@0:     bool shaderDerivativeSupport() const { return fShaderDerivativeSupport; }
michael@0:     bool geometryShaderSupport() const { return fGeometryShaderSupport; }
michael@0:     bool dualSourceBlendingSupport() const { return fDualSourceBlendingSupport; }
michael@0:     bool bufferLockSupport() const { return fBufferLockSupport; }
michael@0:     bool pathRenderingSupport() const { return fPathRenderingSupport; }
michael@0:     bool dstReadInShaderSupport() const { return fDstReadInShaderSupport; }
michael@0:     bool gpuTracingSupport() const { return fGpuTracingSupport; }
michael@0: 
michael@0:     // Scratch textures not being reused means that those scratch textures
michael@0:     // that we upload to (i.e., don't have a render target) will not be
michael@0:     // recycled in the texture cache. This is to prevent ghosting by drivers
michael@0:     // (in particular for deferred architectures).
michael@0:     bool reuseScratchTextures() const { return fReuseScratchTextures; }
michael@0: 
michael@0:     int maxRenderTargetSize() const { return fMaxRenderTargetSize; }
michael@0:     int maxTextureSize() const { return fMaxTextureSize; }
michael@0:     // Will be 0 if MSAA is not supported
michael@0:     int maxSampleCount() const { return fMaxSampleCount; }
michael@0: 
michael@0:     bool isConfigRenderable(GrPixelConfig config, bool withMSAA) const {
michael@0:         SkASSERT(kGrPixelConfigCnt > config);
michael@0:         return fConfigRenderSupport[config][withMSAA];
michael@0:     }
michael@0: 
michael@0: protected:
michael@0:     bool f8BitPaletteSupport        : 1;
michael@0:     bool fNPOTTextureTileSupport    : 1;
michael@0:     bool fMipMapSupport             : 1;
michael@0:     bool fTwoSidedStencilSupport    : 1;
michael@0:     bool fStencilWrapOpsSupport     : 1;
michael@0:     bool fHWAALineSupport           : 1;
michael@0:     bool fShaderDerivativeSupport   : 1;
michael@0:     bool fGeometryShaderSupport     : 1;
michael@0:     bool fDualSourceBlendingSupport : 1;
michael@0:     bool fBufferLockSupport         : 1;
michael@0:     bool fPathRenderingSupport      : 1;
michael@0:     bool fDstReadInShaderSupport    : 1;
michael@0:     bool fReuseScratchTextures      : 1;
michael@0:     bool fGpuTracingSupport         : 1;
michael@0: 
michael@0:     int fMaxRenderTargetSize;
michael@0:     int fMaxTextureSize;
michael@0:     int fMaxSampleCount;
michael@0: 
michael@0:     // The first entry for each config is without msaa and the second is with.
michael@0:     bool fConfigRenderSupport[kGrPixelConfigCnt][2];
michael@0: 
michael@0:     typedef SkRefCnt INHERITED;
michael@0: };
michael@0: 
michael@0: #endif