| |
| /* |
| * Copyright 2011 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| // This is a GPU-backend specific test. It relies on static intializers to work |
| |
| #include "SkTypes.h" |
| |
| #if SK_SUPPORT_GPU && SK_ALLOW_STATIC_GLOBAL_INITIALIZERS |
| |
| #include "gl/GrGpuGL.h" |
| #include "GrBackendEffectFactory.h" |
| #include "GrContextFactory.h" |
| #include "effects/GrConfigConversionEffect.h" |
| |
| #include "SkRandom.h" |
| #include "Test.h" |
| |
| namespace { |
| |
| // SkRandoms nextU() values have patterns in the low bits |
| // So using nextU() % array_count might never take some values. |
| int random_int(SkRandom* r, int count) { |
| return (int)(r->nextF() * count); |
| } |
| |
| bool random_bool(SkRandom* r) { |
| return r->nextF() > .5f; |
| } |
| |
| const GrEffectRef* create_random_effect(SkRandom* random, |
| GrContext* context, |
| GrTexture* dummyTextures[]) { |
| |
| SkRandom sk_random; |
| sk_random.setSeed(random->nextU()); |
| GrEffectRef* effect = GrEffectTestFactory::CreateStage(&sk_random, context, dummyTextures); |
| GrAssert(effect); |
| return effect; |
| } |
| } |
| |
| bool GrGpuGL::programUnitTest(int maxStages) { |
| |
| maxStages = GrMin(maxStages, (int)GrDrawState::kNumStages); |
| |
| GrTextureDesc dummyDesc; |
| dummyDesc.fConfig = kSkia8888_PM_GrPixelConfig; |
| dummyDesc.fWidth = 34; |
| dummyDesc.fHeight = 18; |
| SkAutoTUnref<GrTexture> dummyTexture1(this->createTexture(dummyDesc, NULL, 0)); |
| dummyDesc.fConfig = kAlpha_8_GrPixelConfig; |
| dummyDesc.fWidth = 16; |
| dummyDesc.fHeight = 22; |
| SkAutoTUnref<GrTexture> dummyTexture2(this->createTexture(dummyDesc, NULL, 0)); |
| |
| static const int NUM_TESTS = 512; |
| |
| SkRandom random; |
| for (int t = 0; t < NUM_TESTS; ++t) { |
| |
| #if 0 |
| GrPrintf("\nTest Program %d\n-------------\n", t); |
| static const int stop = -1; |
| if (t == stop) { |
| int breakpointhere = 9; |
| } |
| #endif |
| |
| ProgramDesc pdesc; |
| pdesc.fVertexLayout = 0; |
| pdesc.fEmitsPointSize = random.nextF() > .5f; |
| pdesc.fColorInput = random_int(&random, ProgramDesc::kColorInputCnt); |
| pdesc.fCoverageInput = random_int(&random, ProgramDesc::kColorInputCnt); |
| |
| pdesc.fColorFilterXfermode = random_int(&random, SkXfermode::kCoeffModesCnt); |
| |
| pdesc.fFirstCoverageStage = random_int(&random, GrDrawState::kNumStages); |
| |
| pdesc.fVertexLayout |= random_bool(&random) ? |
| GrDrawState::kCoverage_VertexLayoutBit : |
| 0; |
| |
| #if GR_GL_EXPERIMENTAL_GS |
| pdesc.fExperimentalGS = this->getCaps().geometryShaderSupport() && |
| random_bool(&random); |
| #endif |
| |
| bool edgeAA = random_bool(&random); |
| if (edgeAA) { |
| pdesc.fVertexLayout |= GrDrawState::kEdge_VertexLayoutBit; |
| if (this->getCaps().shaderDerivativeSupport()) { |
| pdesc.fVertexEdgeType = (GrDrawState::VertexEdgeType) random_int(&random, GrDrawState::kVertexEdgeTypeCnt); |
| pdesc.fDiscardIfOutsideEdge = random.nextBool(); |
| } else { |
| pdesc.fVertexEdgeType = GrDrawState::kHairLine_EdgeType; |
| pdesc.fDiscardIfOutsideEdge = false; |
| } |
| } else { |
| } |
| |
| if (this->getCaps().dualSourceBlendingSupport()) { |
| pdesc.fDualSrcOutput = random_int(&random, ProgramDesc::kDualSrcOutputCnt); |
| } else { |
| pdesc.fDualSrcOutput = ProgramDesc::kNone_DualSrcOutput; |
| } |
| |
| GrEffectStage stages[GrDrawState::kNumStages]; |
| |
| for (int s = 0; s < GrDrawState::kNumStages; ++s) { |
| // enable the stage? |
| if (random_bool(&random)) { |
| // use separate tex coords? |
| if (random_bool(&random)) { |
| int t = random_int(&random, GrDrawState::kMaxTexCoords); |
| pdesc.fVertexLayout |= GrDrawState::StageTexCoordVertexLayoutBit(s, t); |
| } |
| // use text-formatted verts? |
| if (random_bool(&random)) { |
| pdesc.fVertexLayout |= GrDrawState::kTextFormat_VertexLayoutBit; |
| } |
| |
| GrTexture* dummyTextures[] = {dummyTexture1.get(), dummyTexture2.get()}; |
| SkAutoTUnref<const GrEffectRef> effect(create_random_effect(&random, |
| getContext(), |
| dummyTextures)); |
| stages[s].setEffect(effect.get()); |
| if (NULL != stages[s].getEffect()) { |
| pdesc.fEffectKeys[s] = |
| (*stages[s].getEffect())->getFactory().glEffectKey(stages[s], |
| this->glCaps()); |
| } |
| } |
| } |
| const GrEffectStage* stagePtrs[GrDrawState::kNumStages]; |
| for (int s = 0; s < GrDrawState::kNumStages; ++s) { |
| stagePtrs[s] = &stages[s]; |
| } |
| SkAutoTUnref<GrGLProgram> program(GrGLProgram::Create(this->glContextInfo(), |
| pdesc, |
| stagePtrs)); |
| if (NULL == program.get()) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| static void GLProgramsTest(skiatest::Reporter* reporter, GrContextFactory* factory) { |
| for (int type = 0; type < GrContextFactory::kLastGLContextType; ++type) { |
| GrContext* context = factory->get(static_cast<GrContextFactory::GLContextType>(type)); |
| if (NULL != context) { |
| GrGpuGL* gpu = static_cast<GrGpuGL*>(context->getGpu()); |
| int maxStages = GrDrawState::kNumStages; |
| #if SK_ANGLE |
| // Some long shaders run out of temporary registers in the D3D compiler on ANGLE. |
| if (type == GrContextFactory::kANGLE_GLContextType) { |
| maxStages = 3; |
| } |
| #endif |
| REPORTER_ASSERT(reporter, gpu->programUnitTest(maxStages)); |
| } |
| } |
| } |
| |
| #include "TestClassDef.h" |
| DEFINE_GPUTESTCLASS("GLPrograms", GLProgramsTestClass, GLProgramsTest) |
| |
| // This is evil evil evil. The linker may throw away whole translation units as dead code if it |
| // thinks none of the functions are called. It will do this even if there are static initializers |
| // in the unit that could pass pointers to functions from the unit out to other translation units! |
| // We force some of the effects that would otherwise be discarded to link here. |
| |
| #include "SkLightingImageFilter.h" |
| #include "SkMagnifierImageFilter.h" |
| #include "SkColorMatrixFilter.h" |
| |
| void forceLinking(); |
| |
| void forceLinking() { |
| SkLightingImageFilter::CreateDistantLitDiffuse(SkPoint3(0,0,0), 0, 0, 0); |
| SkMagnifierImageFilter mag(SkRect::MakeWH(SK_Scalar1, SK_Scalar1), SK_Scalar1); |
| GrConfigConversionEffect::Create(NULL, |
| false, |
| GrConfigConversionEffect::kNone_PMConversion, |
| SkMatrix::I()); |
| SkScalar matrix[20]; |
| SkColorMatrixFilter cmf(matrix); |
| } |
| |
| #endif |