1 /* 2 * Copyright 2015 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 #include "GrCaps.h" 9 10 #include "GrBackendSurface.h" 11 #include "GrContextOptions.h" 12 #include "GrWindowRectangles.h" 13 #include "SkJSONWriter.h" 14 15 static const char* pixel_config_name(GrPixelConfig config) { 16 switch (config) { 17 case kUnknown_GrPixelConfig: return "Unknown"; 18 case kAlpha_8_GrPixelConfig: return "Alpha8"; 19 case kAlpha_8_as_Alpha_GrPixelConfig: return "Alpha8_asAlpha"; 20 case kAlpha_8_as_Red_GrPixelConfig: return "Alpha8_asRed"; 21 case kGray_8_GrPixelConfig: return "Gray8"; 22 case kGray_8_as_Lum_GrPixelConfig: return "Gray8_asLum"; 23 case kGray_8_as_Red_GrPixelConfig: return "Gray8_asRed"; 24 case kRGB_565_GrPixelConfig: return "RGB565"; 25 case kRGBA_4444_GrPixelConfig: return "RGBA444"; 26 case kRGBA_8888_GrPixelConfig: return "RGBA8888"; 27 case kBGRA_8888_GrPixelConfig: return "BGRA8888"; 28 case kSRGBA_8888_GrPixelConfig: return "SRGBA8888"; 29 case kSBGRA_8888_GrPixelConfig: return "SBGRA8888"; 30 case kRGBA_8888_sint_GrPixelConfig: return "RGBA8888_sint"; 31 case kRGBA_float_GrPixelConfig: return "RGBAFloat"; 32 case kRG_float_GrPixelConfig: return "RGFloat"; 33 case kAlpha_half_GrPixelConfig: return "AlphaHalf"; 34 case kAlpha_half_as_Red_GrPixelConfig: return "AlphaHalf_asRed"; 35 case kRGBA_half_GrPixelConfig: return "RGBAHalf"; 36 } 37 SK_ABORT("Invalid pixel config"); 38 return "<invalid>"; 39 } 40 41 GrCaps::GrCaps(const GrContextOptions& options) { 42 fMipMapSupport = false; 43 fNPOTTextureTileSupport = false; 44 fSRGBSupport = false; 45 fSRGBWriteControl = false; 46 fSRGBDecodeDisableSupport = false; 47 fDiscardRenderTargetSupport = false; 48 fReuseScratchTextures = true; 49 fReuseScratchBuffers = true; 50 fGpuTracingSupport = false; 51 fOversizedStencilSupport = false; 52 fTextureBarrierSupport = false; 53 fSampleLocationsSupport = false; 54 fMultisampleDisableSupport = false; 55 fInstanceAttribSupport = false; 56 fUsesMixedSamples = false; 57 fUsePrimitiveRestart = false; 58 fPreferClientSideDynamicBuffers = false; 59 fPreferFullscreenClears = false; 60 fMustClearUploadedBufferData = false; 61 fSampleShadingSupport = false; 62 fFenceSyncSupport = false; 63 fCrossContextTextureSupport = false; 64 65 fBlendEquationSupport = kBasic_BlendEquationSupport; 66 fAdvBlendEqBlacklist = 0; 67 68 fMapBufferFlags = kNone_MapFlags; 69 70 fMaxVertexAttributes = 0; 71 fMaxRenderTargetSize = 1; 72 fMaxTextureSize = 1; 73 fMaxRasterSamples = 0; 74 fMaxWindowRectangles = 0; 75 76 // An default count of 4 was chosen because of the common pattern in Blink of: 77 // isect RR 78 // diff RR 79 // isect convex_poly 80 // isect convex_poly 81 // when drawing rounded div borders. 82 fMaxClipAnalyticFPs = 4; 83 84 fSuppressPrints = options.fSuppressPrints; 85 #if GR_TEST_UTILS 86 fWireframeMode = options.fWireframeMode; 87 #else 88 fWireframeMode = false; 89 #endif 90 fBufferMapThreshold = options.fBufferMapThreshold; 91 fBlacklistCoverageCounting = false; 92 fAvoidStencilBuffers = false; 93 94 fPreferVRAMUseOverFlushes = true; 95 } 96 97 void GrCaps::applyOptionsOverrides(const GrContextOptions& options) { 98 this->onApplyOptionsOverrides(options); 99 if (options.fDisableDriverCorrectnessWorkarounds) { 100 // We always blacklist coverage counting on Vulkan currently. TODO: Either stop doing that 101 // or disambiguate blacklisting from incomplete implementation. 102 // SkASSERT(!fBlacklistCoverageCounting); 103 SkASSERT(!fAvoidStencilBuffers); 104 SkASSERT(!fAdvBlendEqBlacklist); 105 } 106 107 fMaxTextureSize = SkTMin(fMaxTextureSize, options.fMaxTextureSizeOverride); 108 fMaxTileSize = fMaxTextureSize; 109 #if GR_TEST_UTILS 110 // If the max tile override is zero, it means we should use the max texture size. 111 if (options.fMaxTileSizeOverride && options.fMaxTileSizeOverride < fMaxTextureSize) { 112 fMaxTileSize = options.fMaxTileSizeOverride; 113 } 114 if (options.fSuppressGeometryShaders) { 115 fShaderCaps->fGeometryShaderSupport = false; 116 } 117 #endif 118 if (fMaxWindowRectangles > GrWindowRectangles::kMaxWindows) { 119 SkDebugf("WARNING: capping window rectangles at %i. HW advertises support for %i.\n", 120 GrWindowRectangles::kMaxWindows, fMaxWindowRectangles); 121 fMaxWindowRectangles = GrWindowRectangles::kMaxWindows; 122 } 123 fAvoidStencilBuffers = options.fAvoidStencilBuffers; 124 } 125 126 static SkString map_flags_to_string(uint32_t flags) { 127 SkString str; 128 if (GrCaps::kNone_MapFlags == flags) { 129 str = "none"; 130 } else { 131 SkASSERT(GrCaps::kCanMap_MapFlag & flags); 132 SkDEBUGCODE(flags &= ~GrCaps::kCanMap_MapFlag); 133 str = "can_map"; 134 135 if (GrCaps::kSubset_MapFlag & flags) { 136 str.append(" partial"); 137 } else { 138 str.append(" full"); 139 } 140 SkDEBUGCODE(flags &= ~GrCaps::kSubset_MapFlag); 141 } 142 SkASSERT(0 == flags); // Make sure we handled all the flags. 143 return str; 144 } 145 146 void GrCaps::dumpJSON(SkJSONWriter* writer) const { 147 writer->beginObject(); 148 149 writer->appendBool("MIP Map Support", fMipMapSupport); 150 writer->appendBool("NPOT Texture Tile Support", fNPOTTextureTileSupport); 151 writer->appendBool("sRGB Support", fSRGBSupport); 152 writer->appendBool("sRGB Write Control", fSRGBWriteControl); 153 writer->appendBool("sRGB Decode Disable", fSRGBDecodeDisableSupport); 154 writer->appendBool("Discard Render Target Support", fDiscardRenderTargetSupport); 155 writer->appendBool("Reuse Scratch Textures", fReuseScratchTextures); 156 writer->appendBool("Reuse Scratch Buffers", fReuseScratchBuffers); 157 writer->appendBool("Gpu Tracing Support", fGpuTracingSupport); 158 writer->appendBool("Oversized Stencil Support", fOversizedStencilSupport); 159 writer->appendBool("Texture Barrier Support", fTextureBarrierSupport); 160 writer->appendBool("Sample Locations Support", fSampleLocationsSupport); 161 writer->appendBool("Multisample disable support", fMultisampleDisableSupport); 162 writer->appendBool("Instance Attrib Support", fInstanceAttribSupport); 163 writer->appendBool("Uses Mixed Samples", fUsesMixedSamples); 164 writer->appendBool("Use primitive restart", fUsePrimitiveRestart); 165 writer->appendBool("Prefer client-side dynamic buffers", fPreferClientSideDynamicBuffers); 166 writer->appendBool("Prefer fullscreen clears", fPreferFullscreenClears); 167 writer->appendBool("Must clear buffer memory", fMustClearUploadedBufferData); 168 writer->appendBool("Sample shading support", fSampleShadingSupport); 169 writer->appendBool("Fence sync support", fFenceSyncSupport); 170 writer->appendBool("Cross context texture support", fCrossContextTextureSupport); 171 172 writer->appendBool("Blacklist Coverage Counting Path Renderer [workaround]", 173 fBlacklistCoverageCounting); 174 writer->appendBool("Prefer VRAM Use over flushes [workaround]", fPreferVRAMUseOverFlushes); 175 176 if (this->advancedBlendEquationSupport()) { 177 writer->appendHexU32("Advanced Blend Equation Blacklist", fAdvBlendEqBlacklist); 178 } 179 180 writer->appendS32("Max Vertex Attributes", fMaxVertexAttributes); 181 writer->appendS32("Max Texture Size", fMaxTextureSize); 182 writer->appendS32("Max Render Target Size", fMaxRenderTargetSize); 183 writer->appendS32("Max Raster Samples", fMaxRasterSamples); 184 writer->appendS32("Max Window Rectangles", fMaxWindowRectangles); 185 writer->appendS32("Max Clip Analytic Fragment Processors", fMaxClipAnalyticFPs); 186 187 static const char* kBlendEquationSupportNames[] = { 188 "Basic", 189 "Advanced", 190 "Advanced Coherent", 191 }; 192 GR_STATIC_ASSERT(0 == kBasic_BlendEquationSupport); 193 GR_STATIC_ASSERT(1 == kAdvanced_BlendEquationSupport); 194 GR_STATIC_ASSERT(2 == kAdvancedCoherent_BlendEquationSupport); 195 GR_STATIC_ASSERT(SK_ARRAY_COUNT(kBlendEquationSupportNames) == kLast_BlendEquationSupport + 1); 196 197 writer->appendString("Blend Equation Support", 198 kBlendEquationSupportNames[fBlendEquationSupport]); 199 writer->appendString("Map Buffer Support", map_flags_to_string(fMapBufferFlags).c_str()); 200 201 SkASSERT(!this->isConfigRenderable(kUnknown_GrPixelConfig, false)); 202 SkASSERT(!this->isConfigRenderable(kUnknown_GrPixelConfig, true)); 203 SkASSERT(!this->isConfigTexturable(kUnknown_GrPixelConfig)); 204 205 writer->beginArray("configs"); 206 207 for (size_t i = 1; i < kGrPixelConfigCnt; ++i) { 208 GrPixelConfig config = static_cast<GrPixelConfig>(i); 209 writer->beginObject(nullptr, false); 210 writer->appendString("name", pixel_config_name(config)); 211 writer->appendBool("renderable", this->isConfigRenderable(config, false)); 212 writer->appendBool("renderableMSAA", this->isConfigRenderable(config, true)); 213 writer->appendBool("texturable", this->isConfigTexturable(config)); 214 writer->endObject(); 215 } 216 217 writer->endArray(); 218 219 this->onDumpJSON(writer); 220 221 writer->appendName("shaderCaps"); 222 this->shaderCaps()->dumpJSON(writer); 223 224 writer->endObject(); 225 } 226 227
