1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/skia/trunk/src/gpu/GrDrawTargetCaps.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,87 @@
1.4 +
1.5 +/*
1.6 + * Copyright 2013 Google Inc.
1.7 + *
1.8 + * Use of this source code is governed by a BSD-style license that can be
1.9 + * found in the LICENSE file.
1.10 + */
1.11 +#ifndef GrDrawTargetCaps_DEFINED
1.12 +#define GrDrawTargetCaps_DEFINED
1.13 +
1.14 +#include "GrTypes.h"
1.15 +#include "SkRefCnt.h"
1.16 +#include "SkString.h"
1.17 +
1.18 +/**
1.19 + * Represents the draw target capabilities.
1.20 + */
1.21 +class GrDrawTargetCaps : public SkRefCnt {
1.22 +public:
1.23 + SK_DECLARE_INST_COUNT(Caps)
1.24 +
1.25 + GrDrawTargetCaps() { this->reset(); }
1.26 + GrDrawTargetCaps(const GrDrawTargetCaps& other) : INHERITED() { *this = other; }
1.27 + GrDrawTargetCaps& operator= (const GrDrawTargetCaps&);
1.28 +
1.29 + virtual void reset();
1.30 + virtual SkString dump() const;
1.31 +
1.32 + bool eightBitPaletteSupport() const { return f8BitPaletteSupport; }
1.33 + bool npotTextureTileSupport() const { return fNPOTTextureTileSupport; }
1.34 + /** To avoid as-yet-unnecessary complexity we don't allow any partial support of MIP Maps (e.g.
1.35 + only for POT textures) */
1.36 + bool mipMapSupport() const { return fMipMapSupport; }
1.37 + bool twoSidedStencilSupport() const { return fTwoSidedStencilSupport; }
1.38 + bool stencilWrapOpsSupport() const { return fStencilWrapOpsSupport; }
1.39 + bool hwAALineSupport() const { return fHWAALineSupport; }
1.40 + bool shaderDerivativeSupport() const { return fShaderDerivativeSupport; }
1.41 + bool geometryShaderSupport() const { return fGeometryShaderSupport; }
1.42 + bool dualSourceBlendingSupport() const { return fDualSourceBlendingSupport; }
1.43 + bool bufferLockSupport() const { return fBufferLockSupport; }
1.44 + bool pathRenderingSupport() const { return fPathRenderingSupport; }
1.45 + bool dstReadInShaderSupport() const { return fDstReadInShaderSupport; }
1.46 + bool gpuTracingSupport() const { return fGpuTracingSupport; }
1.47 +
1.48 + // Scratch textures not being reused means that those scratch textures
1.49 + // that we upload to (i.e., don't have a render target) will not be
1.50 + // recycled in the texture cache. This is to prevent ghosting by drivers
1.51 + // (in particular for deferred architectures).
1.52 + bool reuseScratchTextures() const { return fReuseScratchTextures; }
1.53 +
1.54 + int maxRenderTargetSize() const { return fMaxRenderTargetSize; }
1.55 + int maxTextureSize() const { return fMaxTextureSize; }
1.56 + // Will be 0 if MSAA is not supported
1.57 + int maxSampleCount() const { return fMaxSampleCount; }
1.58 +
1.59 + bool isConfigRenderable(GrPixelConfig config, bool withMSAA) const {
1.60 + SkASSERT(kGrPixelConfigCnt > config);
1.61 + return fConfigRenderSupport[config][withMSAA];
1.62 + }
1.63 +
1.64 +protected:
1.65 + bool f8BitPaletteSupport : 1;
1.66 + bool fNPOTTextureTileSupport : 1;
1.67 + bool fMipMapSupport : 1;
1.68 + bool fTwoSidedStencilSupport : 1;
1.69 + bool fStencilWrapOpsSupport : 1;
1.70 + bool fHWAALineSupport : 1;
1.71 + bool fShaderDerivativeSupport : 1;
1.72 + bool fGeometryShaderSupport : 1;
1.73 + bool fDualSourceBlendingSupport : 1;
1.74 + bool fBufferLockSupport : 1;
1.75 + bool fPathRenderingSupport : 1;
1.76 + bool fDstReadInShaderSupport : 1;
1.77 + bool fReuseScratchTextures : 1;
1.78 + bool fGpuTracingSupport : 1;
1.79 +
1.80 + int fMaxRenderTargetSize;
1.81 + int fMaxTextureSize;
1.82 + int fMaxSampleCount;
1.83 +
1.84 + // The first entry for each config is without msaa and the second is with.
1.85 + bool fConfigRenderSupport[kGrPixelConfigCnt][2];
1.86 +
1.87 + typedef SkRefCnt INHERITED;
1.88 +};
1.89 +
1.90 +#endif
