1 /* 2 * Copyright 2017 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 "SkTypes.h" 9 #include "Test.h" 10 11 #if SK_SUPPORT_GPU 12 13 #include "GrContext.h" 14 #include "GrColor.h" 15 #include "GrGeometryProcessor.h" 16 #include "GrGpuCommandBuffer.h" 17 #include "GrOpFlushState.h" 18 #include "GrRenderTargetContext.h" 19 #include "GrRenderTargetContextPriv.h" 20 #include "GrResourceProvider.h" 21 #include "SkMakeUnique.h" 22 #include "glsl/GrGLSLVertexGeoBuilder.h" 23 #include "glsl/GrGLSLFragmentShaderBuilder.h" 24 #include "glsl/GrGLSLGeometryProcessor.h" 25 #include "glsl/GrGLSLVarying.h" 26 27 /** 28 * This is a GPU-backend specific test for dynamic pipeline state. It draws boxes using dynamic 29 * scissor rectangles then reads back the result to verify a successful test. 30 */ 31 32 using ScissorState = GrPipeline::ScissorState; 33 34 static constexpr int kScreenSize = 6; 35 static constexpr int kNumMeshes = 4; 36 static constexpr int kScreenSplitX = kScreenSize/2; 37 static constexpr int kScreenSplitY = kScreenSize/2; 38 39 static const GrPipeline::DynamicState kDynamicStates[kNumMeshes] = { 40 {SkIRect::MakeLTRB(0, 0, kScreenSplitX, kScreenSplitY)}, 41 {SkIRect::MakeLTRB(0, kScreenSplitY, kScreenSplitX, kScreenSize)}, 42 {SkIRect::MakeLTRB(kScreenSplitX, 0, kScreenSize, kScreenSplitY)}, 43 {SkIRect::MakeLTRB(kScreenSplitX, kScreenSplitY, kScreenSize, kScreenSize)}, 44 }; 45 46 static const GrColor kMeshColors[kNumMeshes] { 47 GrColorPackRGBA(255, 0, 0, 255), 48 GrColorPackRGBA(0, 255, 0, 255), 49 GrColorPackRGBA(0, 0, 255, 255), 50 GrColorPackRGBA(0, 0, 0, 255) 51 }; 52 53 struct Vertex { 54 float fX; 55 float fY; 56 GrColor fColor; 57 }; 58 59 class GrPipelineDynamicStateTestProcessor : public GrGeometryProcessor { 60 public: 61 GrPipelineDynamicStateTestProcessor() 62 : INHERITED(kGrPipelineDynamicStateTestProcessor_ClassID) 63 , fVertex(this->addVertexAttrib("vertex", kHalf2_GrVertexAttribType)) 64 , fColor(this->addVertexAttrib("color", kUByte4_norm_GrVertexAttribType)) {} 65 66 const char* name() const override { return "GrPipelineDynamicStateTest Processor"; } 67 68 void getGLSLProcessorKey(const GrShaderCaps&, GrProcessorKeyBuilder*) const final {} 69 70 GrGLSLPrimitiveProcessor* createGLSLInstance(const GrShaderCaps&) const final; 71 72 protected: 73 const Attribute& fVertex; 74 const Attribute& fColor; 75 76 friend class GLSLPipelineDynamicStateTestProcessor; 77 typedef GrGeometryProcessor INHERITED; 78 }; 79 80 class GLSLPipelineDynamicStateTestProcessor : public GrGLSLGeometryProcessor { 81 void setData(const GrGLSLProgramDataManager& pdman, const GrPrimitiveProcessor&, 82 FPCoordTransformIter&& transformIter) final {} 83 84 void onEmitCode(EmitArgs& args, GrGPArgs* gpArgs) final { 85 const GrPipelineDynamicStateTestProcessor& mp = 86 args.fGP.cast<GrPipelineDynamicStateTestProcessor>(); 87 88 GrGLSLVaryingHandler* varyingHandler = args.fVaryingHandler; 89 varyingHandler->emitAttributes(mp); 90 varyingHandler->addPassThroughAttribute(&mp.fColor, args.fOutputColor); 91 92 GrGLSLVertexBuilder* v = args.fVertBuilder; 93 v->codeAppendf("float2 vertex = %s;", mp.fVertex.fName); 94 gpArgs->fPositionVar.set(kFloat2_GrSLType, "vertex"); 95 96 GrGLSLFPFragmentBuilder* f = args.fFragBuilder; 97 f->codeAppendf("%s = half4(1);", args.fOutputCoverage); 98 } 99 }; 100 101 GrGLSLPrimitiveProcessor* 102 GrPipelineDynamicStateTestProcessor::createGLSLInstance(const GrShaderCaps&) const { 103 return new GLSLPipelineDynamicStateTestProcessor; 104 } 105 106 class GrPipelineDynamicStateTestOp : public GrDrawOp { 107 public: 108 DEFINE_OP_CLASS_ID 109 110 GrPipelineDynamicStateTestOp(ScissorState scissorState, sk_sp<const GrBuffer> vbuff) 111 : INHERITED(ClassID()) 112 , fScissorState(scissorState) 113 , fVertexBuffer(std::move(vbuff)) { 114 this->setBounds(SkRect::MakeIWH(kScreenSize, kScreenSize), 115 HasAABloat::kNo, IsZeroArea::kNo); 116 } 117 118 private: 119 const char* name() const override { return "GrPipelineDynamicStateTestOp"; } 120 FixedFunctionFlags fixedFunctionFlags() const override { return FixedFunctionFlags::kNone; } 121 RequiresDstTexture finalize(const GrCaps&, const GrAppliedClip*, 122 GrPixelConfigIsClamped) override { 123 return RequiresDstTexture::kNo; 124 } 125 bool onCombineIfPossible(GrOp* other, const GrCaps& caps) override { return false; } 126 void onPrepare(GrOpFlushState*) override {} 127 void onExecute(GrOpFlushState* state) override { 128 GrRenderTargetProxy* proxy = state->drawOpArgs().fProxy; 129 GrPipeline pipeline(proxy, fScissorState, SkBlendMode::kSrc); 130 SkSTArray<kNumMeshes, GrMesh> meshes; 131 for (int i = 0; i < kNumMeshes; ++i) { 132 GrMesh& mesh = meshes.emplace_back(GrPrimitiveType::kTriangleStrip); 133 mesh.setNonIndexedNonInstanced(4); 134 mesh.setVertexData(fVertexBuffer.get(), 4 * i); 135 } 136 state->rtCommandBuffer()->draw(pipeline, GrPipelineDynamicStateTestProcessor(), 137 meshes.begin(), kDynamicStates, 4, 138 SkRect::MakeIWH(kScreenSize, kScreenSize)); 139 } 140 141 ScissorState fScissorState; 142 const sk_sp<const GrBuffer> fVertexBuffer; 143 144 typedef GrDrawOp INHERITED; 145 }; 146 147 DEF_GPUTEST_FOR_RENDERING_CONTEXTS(GrPipelineDynamicStateTest, reporter, ctxInfo) { 148 GrContext* const context = ctxInfo.grContext(); 149 GrResourceProvider* rp = context->contextPriv().resourceProvider(); 150 151 sk_sp<GrRenderTargetContext> rtc( 152 context->makeDeferredRenderTargetContext(SkBackingFit::kExact, kScreenSize, kScreenSize, 153 kRGBA_8888_GrPixelConfig, nullptr)); 154 if (!rtc) { 155 ERRORF(reporter, "could not create render target context."); 156 return; 157 } 158 159 constexpr float d = (float) kScreenSize; 160 Vertex vdata[kNumMeshes * 4] = { 161 {0, 0, kMeshColors[0]}, 162 {0, d, kMeshColors[0]}, 163 {d, 0, kMeshColors[0]}, 164 {d, d, kMeshColors[0]}, 165 166 {0, 0, kMeshColors[1]}, 167 {0, d, kMeshColors[1]}, 168 {d, 0, kMeshColors[1]}, 169 {d, d, kMeshColors[1]}, 170 171 {0, 0, kMeshColors[2]}, 172 {0, d, kMeshColors[2]}, 173 {d, 0, kMeshColors[2]}, 174 {d, d, kMeshColors[2]}, 175 176 {0, 0, kMeshColors[3]}, 177 {0, d, kMeshColors[3]}, 178 {d, 0, kMeshColors[3]}, 179 {d, d, kMeshColors[3]} 180 }; 181 182 sk_sp<const GrBuffer> vbuff(rp->createBuffer(sizeof(vdata), kVertex_GrBufferType, 183 kDynamic_GrAccessPattern, 184 GrResourceProvider::kNoPendingIO_Flag | 185 GrResourceProvider::kRequireGpuMemory_Flag, 186 vdata)); 187 if (!vbuff) { 188 ERRORF(reporter, "vbuff is null."); 189 return; 190 } 191 192 uint32_t resultPx[kScreenSize * kScreenSize]; 193 194 for (ScissorState scissorState : {ScissorState::kEnabled, ScissorState::kDisabled}) { 195 rtc->clear(nullptr, 0xbaaaaaad, GrRenderTargetContext::CanClearFullscreen::kYes); 196 rtc->priv().testingOnly_addDrawOp( 197 skstd::make_unique<GrPipelineDynamicStateTestOp>(scissorState, vbuff)); 198 rtc->readPixels(SkImageInfo::Make(kScreenSize, kScreenSize, 199 kRGBA_8888_SkColorType, kPremul_SkAlphaType), 200 resultPx, 4 * kScreenSize, 0, 0, 0); 201 for (int y = 0; y < kScreenSize; ++y) { 202 for (int x = 0; x < kScreenSize; ++x) { 203 int expectedColorIdx; 204 if (ScissorState::kEnabled == scissorState) { 205 expectedColorIdx = (x < kScreenSplitX ? 0 : 2) + (y < kScreenSplitY ? 0 : 1); 206 } else { 207 expectedColorIdx = kNumMeshes - 1; 208 } 209 uint32_t expected = kMeshColors[expectedColorIdx]; 210 uint32_t actual = resultPx[y * kScreenSize + x]; 211 if (expected != actual) { 212 ERRORF(reporter, "[scissor=%s] pixel (%i,%i): got 0x%x expected 0x%x", 213 ScissorState::kEnabled == scissorState ? "enabled" : "disabled", x, y, 214 actual, expected); 215 return; 216 } 217 } 218 } 219 } 220 } 221 222 #endif 223
