1 /* 2 * Copyright 2012 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #ifndef GrProcessor_DEFINED 9 #define GrProcessor_DEFINED 10 11 #include "GrBuffer.h" 12 #include "GrColor.h" 13 #include "GrProcessorUnitTest.h" 14 #include "GrSamplerState.h" 15 #include "GrShaderVar.h" 16 #include "GrSurfaceProxyPriv.h" 17 #include "GrTextureProxy.h" 18 #include "SkMath.h" 19 #include "SkString.h" 20 21 class GrContext; 22 class GrResourceProvider; 23 24 /** 25 * Used by processors to build their keys. It incorporates each per-processor key into a larger 26 * shader key. 27 */ 28 class GrProcessorKeyBuilder { 29 public: GrProcessorKeyBuilder(SkTArray<unsigned char,true> * data)30 GrProcessorKeyBuilder(SkTArray<unsigned char, true>* data) : fData(data), fCount(0) { 31 SkASSERT(0 == fData->count() % sizeof(uint32_t)); 32 } 33 add32(uint32_t v)34 void add32(uint32_t v) { 35 ++fCount; 36 fData->push_back_n(4, reinterpret_cast<uint8_t*>(&v)); 37 } 38 39 /** Inserts count uint32_ts into the key. The returned pointer is only valid until the next 40 add*() call. */ add32n(int count)41 uint32_t* SK_WARN_UNUSED_RESULT add32n(int count) { 42 SkASSERT(count > 0); 43 fCount += count; 44 return reinterpret_cast<uint32_t*>(fData->push_back_n(4 * count)); 45 } 46 size()47 size_t size() const { return sizeof(uint32_t) * fCount; } 48 49 private: 50 SkTArray<uint8_t, true>* fData; // unowned ptr to the larger key. 51 int fCount; // number of uint32_ts added to fData by the processor. 52 }; 53 54 /** Provides custom shader code to the Ganesh shading pipeline. GrProcessor objects *must* be 55 immutable: after being constructed, their fields may not change. 56 57 Dynamically allocated GrProcessors are managed by a per-thread memory pool. The ref count of an 58 processor must reach 0 before the thread terminates and the pool is destroyed. 59 */ 60 class GrProcessor { 61 public: 62 enum ClassID { 63 kBigKeyProcessor_ClassID, 64 kBlockInputFragmentProcessor_ClassID, 65 kButtCapStrokedCircleGeometryProcessor_ClassID, 66 kCircleGeometryProcessor_ClassID, 67 kCircularRRectEffect_ClassID, 68 kClockwiseTestProcessor_ClassID, 69 kColorMatrixEffect_ClassID, 70 kColorTableEffect_ClassID, 71 kComposeOneFragmentProcessor_ClassID, 72 kComposeTwoFragmentProcessor_ClassID, 73 kCoverageSetOpXP_ClassID, 74 kCubicStrokeProcessor_ClassID, 75 kCustomXP_ClassID, 76 kDashingCircleEffect_ClassID, 77 kDashingLineEffect_ClassID, 78 kDefaultGeoProc_ClassID, 79 kDIEllipseGeometryProcessor_ClassID, 80 kDisableColorXP_ClassID, 81 kTwoPointConicalEffect_ClassID, 82 kEllipseGeometryProcessor_ClassID, 83 kEllipticalRRectEffect_ClassID, 84 kGP_ClassID, 85 kVertexColorSpaceBenchGP_ClassID, 86 kGrAAFillRRectOp_Processor_ClassID, 87 kGrAARectEffect_ClassID, 88 kGrAlphaThresholdFragmentProcessor_ClassID, 89 kGrArithmeticFP_ClassID, 90 kGrBicubicEffect_ClassID, 91 kGrBitmapTextGeoProc_ClassID, 92 kGrBlurredEdgeFragmentProcessor_ClassID, 93 kGrCCClipProcessor_ClassID, 94 kGrCCCoverageProcessor_ClassID, 95 kGrCCPathProcessor_ClassID, 96 kGrCircleBlurFragmentProcessor_ClassID, 97 kGrCircleEffect_ClassID, 98 kGrClampedGradientEffect_ClassID, 99 kGrColorSpaceXformEffect_ClassID, 100 kGrConfigConversionEffect_ClassID, 101 kGrConicEffect_ClassID, 102 kGrConstColorProcessor_ClassID, 103 kGrConvexPolyEffect_ClassID, 104 kGrDeviceSpaceTextureDecalFragmentProcessor_ClassID, 105 kGrDiffuseLightingEffect_ClassID, 106 kGrDisplacementMapEffect_ClassID, 107 kGrDistanceFieldA8TextGeoProc_ClassID, 108 kGrDistanceFieldLCDTextGeoProc_ClassID, 109 kGrDistanceFieldPathGeoProc_ClassID, 110 kGrDitherEffect_ClassID, 111 kGrDualIntervalGradientColorizer_ClassID, 112 kGrEllipseEffect_ClassID, 113 kGrGaussianConvolutionFragmentProcessor_ClassID, 114 kGrImprovedPerlinNoiseEffect_ClassID, 115 kGrLightingEffect_ClassID, 116 kGrLinearGradient_ClassID, 117 kGrLinearGradientLayout_ClassID, 118 kGrLumaColorFilterEffect_ClassID, 119 kGrMagnifierEffect_ClassID, 120 kGrMatrixConvolutionEffect_ClassID, 121 kGrMeshTestProcessor_ClassID, 122 kGrMorphologyEffect_ClassID, 123 kGrOverdrawFragmentProcessor_ClassID, 124 kGrPathProcessor_ClassID, 125 kGrPerlinNoise2Effect_ClassID, 126 kGrPipelineDynamicStateTestProcessor_ClassID, 127 kGrPremulInputFragmentProcessor_ClassID, 128 kGrQuadEffect_ClassID, 129 kGrRadialGradient_ClassID, 130 kGrRadialGradientLayout_ClassID, 131 kGrRectBlurEffect_ClassID, 132 kGrRRectBlurEffect_ClassID, 133 kGrRRectShadowGeoProc_ClassID, 134 kGrSimpleTextureEffect_ClassID, 135 kGrSingleIntervalGradientColorizer_ClassID, 136 kGrSkSLFP_ClassID, 137 kGrSpecularLightingEffect_ClassID, 138 kGrSRGBEffect_ClassID, 139 kGrSweepGradient_ClassID, 140 kGrSweepGradientLayout_ClassID, 141 kGrTextureDomainEffect_ClassID, 142 kGrTextureGradientColorizer_ClassID, 143 kGrTiledGradientEffect_ClassID, 144 kGrTwoPointConicalGradientLayout_ClassID, 145 kGrUnpremulInputFragmentProcessor_ClassID, 146 kGrUnrolledBinaryGradientColorizer_ClassID, 147 kGrYUVtoRGBEffect_ClassID, 148 kHighContrastFilterEffect_ClassID, 149 kInstanceProcessor_ClassID, 150 kLatticeGP_ClassID, 151 kLumaColorFilterEffect_ClassID, 152 kMSAAQuadProcessor_ClassID, 153 kPDLCDXferProcessor_ClassID, 154 kPorterDuffXferProcessor_ClassID, 155 kPremulFragmentProcessor_ClassID, 156 kQuadEdgeEffect_ClassID, 157 kQuadPerEdgeAAGeometryProcessor_ClassID, 158 kReplaceInputFragmentProcessor_ClassID, 159 kRRectsGaussianEdgeFP_ClassID, 160 kSeriesFragmentProcessor_ClassID, 161 kShaderPDXferProcessor_ClassID, 162 kFwidthSquircleTestProcessor_ClassID, 163 kSwizzleFragmentProcessor_ClassID, 164 kTestFP_ClassID, 165 kTextureGeometryProcessor_ClassID, 166 kFlatNormalsFP_ClassID, 167 kMappedNormalsFP_ClassID, 168 kLightingFP_ClassID, 169 kLinearStrokeProcessor_ClassID, 170 }; 171 172 virtual ~GrProcessor() = default; 173 174 /** Human-meaningful string to identify this prcoessor; may be embedded in generated shader 175 code. */ 176 virtual const char* name() const = 0; 177 178 /** Human-readable dump of all information */ 179 #ifdef SK_DEBUG dumpInfo()180 virtual SkString dumpInfo() const { 181 SkString str; 182 str.appendf("Missing data"); 183 return str; 184 } 185 #else dumpInfo()186 SkString dumpInfo() const { return SkString("<Processor information unavailable>"); } 187 #endif 188 189 void* operator new(size_t size); 190 void operator delete(void* target); 191 new(size_t size,void * placement)192 void* operator new(size_t size, void* placement) { 193 return ::operator new(size, placement); 194 } delete(void * target,void * placement)195 void operator delete(void* target, void* placement) { 196 ::operator delete(target, placement); 197 } 198 199 /** Helper for down-casting to a GrProcessor subclass */ cast()200 template <typename T> const T& cast() const { return *static_cast<const T*>(this); } 201 classID()202 ClassID classID() const { return fClassID; } 203 204 protected: GrProcessor(ClassID classID)205 GrProcessor(ClassID classID) : fClassID(classID) {} 206 207 private: 208 GrProcessor(const GrProcessor&) = delete; 209 GrProcessor& operator=(const GrProcessor&) = delete; 210 211 ClassID fClassID; 212 }; 213 214 #endif 215