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 #include "GrContext.h"
12 #include "GrColor.h"
13 #include "GrGeometryProcessor.h"
14 #include "GrGpuCommandBuffer.h"
15 #include "GrMemoryPool.h"
16 #include "GrOpFlushState.h"
17 #include "GrRenderTargetContext.h"
18 #include "GrRenderTargetContextPriv.h"
19 #include "GrResourceProvider.h"
20 #include "SkMakeUnique.h"
21 #include "glsl/GrGLSLVertexGeoBuilder.h"
22 #include "glsl/GrGLSLFragmentShaderBuilder.h"
23 #include "glsl/GrGLSLGeometryProcessor.h"
24 #include "glsl/GrGLSLVarying.h"
25
26 /**
27 * This is a GPU-backend specific test for dynamic pipeline state. It draws boxes using dynamic
28 * scissor rectangles then reads back the result to verify a successful test.
29 */
30
31 static constexpr int kScreenSize = 6;
32 static constexpr int kNumMeshes = 4;
33 static constexpr int kScreenSplitX = kScreenSize/2;
34 static constexpr int kScreenSplitY = kScreenSize/2;
35
36 static const SkIRect kDynamicScissors[kNumMeshes] = {
37 SkIRect::MakeLTRB(0, 0, kScreenSplitX, kScreenSplitY),
38 SkIRect::MakeLTRB(0, kScreenSplitY, kScreenSplitX, kScreenSize),
39 SkIRect::MakeLTRB(kScreenSplitX, 0, kScreenSize, kScreenSplitY),
40 SkIRect::MakeLTRB(kScreenSplitX, kScreenSplitY, kScreenSize, kScreenSize),
41 };
42
43 static const GrColor kMeshColors[kNumMeshes] {
44 GrColorPackRGBA(255, 0, 0, 255),
45 GrColorPackRGBA(0, 255, 0, 255),
46 GrColorPackRGBA(0, 0, 255, 255),
47 GrColorPackRGBA(0, 0, 0, 255)
48 };
49
50 struct Vertex {
51 float fX;
52 float fY;
53 GrColor fColor;
54 };
55
56 class GrPipelineDynamicStateTestProcessor : public GrGeometryProcessor {
57 public:
GrPipelineDynamicStateTestProcessor()58 GrPipelineDynamicStateTestProcessor()
59 : INHERITED(kGrPipelineDynamicStateTestProcessor_ClassID) {
60 this->setVertexAttributes(kAttributes, SK_ARRAY_COUNT(kAttributes));
61 }
62
name() const63 const char* name() const override { return "GrPipelineDynamicStateTest Processor"; }
64
getGLSLProcessorKey(const GrShaderCaps &,GrProcessorKeyBuilder *) const65 void getGLSLProcessorKey(const GrShaderCaps&, GrProcessorKeyBuilder*) const final {}
66
67 GrGLSLPrimitiveProcessor* createGLSLInstance(const GrShaderCaps&) const final;
68
inVertex() const69 const Attribute& inVertex() const { return kAttributes[0]; }
inColor() const70 const Attribute& inColor() const { return kAttributes[1]; }
71
72 private:
73 static constexpr Attribute kAttributes[] = {
74 {"vertex", kFloat2_GrVertexAttribType, kHalf2_GrSLType},
75 {"color", kUByte4_norm_GrVertexAttribType, kHalf4_GrSLType},
76 };
77
78 friend class GLSLPipelineDynamicStateTestProcessor;
79 typedef GrGeometryProcessor INHERITED;
80 };
81 constexpr GrPrimitiveProcessor::Attribute GrPipelineDynamicStateTestProcessor::kAttributes[];
82
83 class GLSLPipelineDynamicStateTestProcessor : public GrGLSLGeometryProcessor {
setData(const GrGLSLProgramDataManager & pdman,const GrPrimitiveProcessor &,FPCoordTransformIter && transformIter)84 void setData(const GrGLSLProgramDataManager& pdman, const GrPrimitiveProcessor&,
85 FPCoordTransformIter&& transformIter) final {}
86
onEmitCode(EmitArgs & args,GrGPArgs * gpArgs)87 void onEmitCode(EmitArgs& args, GrGPArgs* gpArgs) final {
88 const GrPipelineDynamicStateTestProcessor& mp =
89 args.fGP.cast<GrPipelineDynamicStateTestProcessor>();
90
91 GrGLSLVaryingHandler* varyingHandler = args.fVaryingHandler;
92 varyingHandler->emitAttributes(mp);
93 varyingHandler->addPassThroughAttribute(mp.inColor(), args.fOutputColor);
94
95 GrGLSLVertexBuilder* v = args.fVertBuilder;
96 v->codeAppendf("float2 vertex = %s;", mp.inVertex().name());
97 gpArgs->fPositionVar.set(kFloat2_GrSLType, "vertex");
98
99 GrGLSLFPFragmentBuilder* f = args.fFragBuilder;
100 f->codeAppendf("%s = half4(1);", args.fOutputCoverage);
101 }
102 };
103
104 GrGLSLPrimitiveProcessor*
createGLSLInstance(const GrShaderCaps &) const105 GrPipelineDynamicStateTestProcessor::createGLSLInstance(const GrShaderCaps&) const {
106 return new GLSLPipelineDynamicStateTestProcessor;
107 }
108
109 class GrPipelineDynamicStateTestOp : public GrDrawOp {
110 public:
111 DEFINE_OP_CLASS_ID
112
Make(GrContext * context,GrScissorTest scissorTest,sk_sp<const GrBuffer> vbuff)113 static std::unique_ptr<GrDrawOp> Make(GrContext* context,
114 GrScissorTest scissorTest,
115 sk_sp<const GrBuffer> vbuff) {
116 GrOpMemoryPool* pool = context->contextPriv().opMemoryPool();
117
118 return pool->allocate<GrPipelineDynamicStateTestOp>(scissorTest, std::move(vbuff));
119 }
120
121 private:
122 friend class GrOpMemoryPool;
123
GrPipelineDynamicStateTestOp(GrScissorTest scissorTest,sk_sp<const GrBuffer> vbuff)124 GrPipelineDynamicStateTestOp(GrScissorTest scissorTest, sk_sp<const GrBuffer> vbuff)
125 : INHERITED(ClassID())
126 , fScissorTest(scissorTest)
127 , fVertexBuffer(std::move(vbuff)) {
128 this->setBounds(SkRect::MakeIWH(kScreenSize, kScreenSize),
129 HasAABloat::kNo, IsZeroArea::kNo);
130 }
131
name() const132 const char* name() const override { return "GrPipelineDynamicStateTestOp"; }
fixedFunctionFlags() const133 FixedFunctionFlags fixedFunctionFlags() const override { return FixedFunctionFlags::kNone; }
finalize(const GrCaps &,const GrAppliedClip *)134 GrProcessorSet::Analysis finalize(const GrCaps&, const GrAppliedClip*) override {
135 return GrProcessorSet::EmptySetAnalysis();
136 }
onPrepare(GrOpFlushState *)137 void onPrepare(GrOpFlushState*) override {}
onExecute(GrOpFlushState * state,const SkRect & chainBounds)138 void onExecute(GrOpFlushState* state, const SkRect& chainBounds) override {
139 GrPipeline pipeline(fScissorTest, SkBlendMode::kSrc);
140 SkSTArray<kNumMeshes, GrMesh> meshes;
141 for (int i = 0; i < kNumMeshes; ++i) {
142 GrMesh& mesh = meshes.emplace_back(GrPrimitiveType::kTriangleStrip);
143 mesh.setNonIndexedNonInstanced(4);
144 mesh.setVertexData(fVertexBuffer, 4 * i);
145 }
146 GrPipeline::DynamicStateArrays dynamicState;
147 dynamicState.fScissorRects = kDynamicScissors;
148 state->rtCommandBuffer()->draw(GrPipelineDynamicStateTestProcessor(), pipeline, nullptr,
149 &dynamicState, meshes.begin(), 4,
150 SkRect::MakeIWH(kScreenSize, kScreenSize));
151 }
152
153 GrScissorTest fScissorTest;
154 const sk_sp<const GrBuffer> fVertexBuffer;
155
156 typedef GrDrawOp INHERITED;
157 };
158
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(GrPipelineDynamicStateTest,reporter,ctxInfo)159 DEF_GPUTEST_FOR_RENDERING_CONTEXTS(GrPipelineDynamicStateTest, reporter, ctxInfo) {
160 GrContext* context = ctxInfo.grContext();
161 GrResourceProvider* rp = context->contextPriv().resourceProvider();
162
163 const GrBackendFormat format =
164 context->contextPriv().caps()->getBackendFormatFromColorType(kRGBA_8888_SkColorType);
165
166 sk_sp<GrRenderTargetContext> rtc(context->contextPriv().makeDeferredRenderTargetContext(
167 format, SkBackingFit::kExact, kScreenSize,
168 kScreenSize, kRGBA_8888_GrPixelConfig, nullptr));
169 if (!rtc) {
170 ERRORF(reporter, "could not create render target context.");
171 return;
172 }
173
174 constexpr float d = (float) kScreenSize;
175 Vertex vdata[kNumMeshes * 4] = {
176 {0, 0, kMeshColors[0]},
177 {0, d, kMeshColors[0]},
178 {d, 0, kMeshColors[0]},
179 {d, d, kMeshColors[0]},
180
181 {0, 0, kMeshColors[1]},
182 {0, d, kMeshColors[1]},
183 {d, 0, kMeshColors[1]},
184 {d, d, kMeshColors[1]},
185
186 {0, 0, kMeshColors[2]},
187 {0, d, kMeshColors[2]},
188 {d, 0, kMeshColors[2]},
189 {d, d, kMeshColors[2]},
190
191 {0, 0, kMeshColors[3]},
192 {0, d, kMeshColors[3]},
193 {d, 0, kMeshColors[3]},
194 {d, d, kMeshColors[3]}
195 };
196
197 sk_sp<const GrBuffer> vbuff(rp->createBuffer(sizeof(vdata), kVertex_GrBufferType,
198 kDynamic_GrAccessPattern,
199 GrResourceProvider::Flags::kRequireGpuMemory,
200 vdata));
201 if (!vbuff) {
202 ERRORF(reporter, "vbuff is null.");
203 return;
204 }
205
206 uint32_t resultPx[kScreenSize * kScreenSize];
207
208 for (GrScissorTest scissorTest : {GrScissorTest::kEnabled, GrScissorTest::kDisabled}) {
209 rtc->clear(nullptr, SkPMColor4f::FromBytes_RGBA(0xbaaaaaad),
210 GrRenderTargetContext::CanClearFullscreen::kYes);
211 rtc->priv().testingOnly_addDrawOp(
212 GrPipelineDynamicStateTestOp::Make(context, scissorTest, vbuff));
213 rtc->readPixels(SkImageInfo::Make(kScreenSize, kScreenSize,
214 kRGBA_8888_SkColorType, kPremul_SkAlphaType),
215 resultPx, 4 * kScreenSize, 0, 0, 0);
216 for (int y = 0; y < kScreenSize; ++y) {
217 for (int x = 0; x < kScreenSize; ++x) {
218 int expectedColorIdx;
219 if (GrScissorTest::kEnabled == scissorTest) {
220 expectedColorIdx = (x < kScreenSplitX ? 0 : 2) + (y < kScreenSplitY ? 0 : 1);
221 } else {
222 expectedColorIdx = kNumMeshes - 1;
223 }
224 uint32_t expected = kMeshColors[expectedColorIdx];
225 uint32_t actual = resultPx[y * kScreenSize + x];
226 if (expected != actual) {
227 ERRORF(reporter, "[scissor=%s] pixel (%i,%i): got 0x%x expected 0x%x",
228 GrScissorTest::kEnabled == scissorTest ? "enabled" : "disabled", x, y,
229 actual, expected);
230 return;
231 }
232 }
233 }
234 }
235 }
236