| |
| /* |
| * 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 "GrProgramStageFactory.h" |
| |
| #include "GrRandom.h" |
| #include "Test.h" |
| |
| namespace { |
| |
| // GrRandoms nextU() values have patterns in the low bits |
| // So using nextU() % array_count might never take some values. |
| int random_int(GrRandom* r, int count) { |
| return (int)(r->nextF() * count); |
| } |
| |
| // min is inclusive, max is exclusive |
| int random_int(GrRandom* r, int min, int max) { |
| return (int)(r->nextF() * (max-min)) + min; |
| } |
| |
| bool random_bool(GrRandom* r) { |
| return r->nextF() > .5f; |
| } |
| |
| typedef GrGLProgram::StageDesc StageDesc; |
| // TODO: Effects should be able to register themselves for inclusion in the |
| // randomly generated shaders. They should be able to configure themselves |
| // randomly. |
| const GrCustomStage* create_random_effect(StageDesc* stageDesc, |
| GrRandom* random, |
| GrContext* context, |
| GrTexture* dummyTextures[]) { |
| |
| // TODO: Remove this when generator doesn't apply this non-custom-stage |
| // notion to custom stages automatically. |
| static const uint32_t kMulByAlphaMask = |
| StageDesc::kMulRGBByAlpha_RoundUp_InConfigFlag | |
| StageDesc::kMulRGBByAlpha_RoundDown_InConfigFlag; |
| |
| // The new code uses SkRandom not GrRandom. |
| // TODO: Remove GrRandom. |
| SkRandom sk_random; |
| sk_random.setSeed(random->nextU()); |
| GrCustomStage* stage = GrCustomStageTestFactory::CreateStage(&sk_random, |
| context, |
| dummyTextures); |
| GrAssert(stage); |
| return stage; |
| } |
| } |
| |
| bool GrGpuGL::programUnitTest() { |
| |
| 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)); |
| |
| // GrGLSLGeneration glslGeneration = |
| GrGetGLSLGeneration(this->glBinding(), this->glInterface()); |
| static const int STAGE_OPTS[] = { |
| 0, |
| StageDesc::kNoPerspective_OptFlagBit, |
| }; |
| static const int IN_CONFIG_FLAGS[] = { |
| StageDesc::kNone_InConfigFlag, |
| StageDesc::kSwapRAndB_InConfigFlag, |
| StageDesc::kSwapRAndB_InConfigFlag | |
| StageDesc::kMulRGBByAlpha_RoundUp_InConfigFlag, |
| StageDesc::kMulRGBByAlpha_RoundDown_InConfigFlag, |
| StageDesc::kSmearAlpha_InConfigFlag, |
| StageDesc::kSmearRed_InConfigFlag, |
| }; |
| |
| static const int NUM_TESTS = 512; |
| |
| GrRandom 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) ? |
| GrDrawTarget::kCoverage_VertexLayoutBit : |
| 0; |
| |
| #if GR_GL_EXPERIMENTAL_GS |
| pdesc.fExperimentalGS = this->getCaps().fGeometryShaderSupport && |
| random_bool(&random); |
| #endif |
| pdesc.fOutputConfig = random_int(&random, ProgramDesc::kOutputConfigCnt); |
| |
| bool edgeAA = random_bool(&random); |
| if (edgeAA) { |
| pdesc.fVertexLayout |= GrDrawTarget::kEdge_VertexLayoutBit; |
| if (this->getCaps().fShaderDerivativeSupport) { |
| pdesc.fVertexEdgeType = (GrDrawState::VertexEdgeType) random_int(&random, GrDrawState::kVertexEdgeTypeCnt); |
| } else { |
| pdesc.fVertexEdgeType = GrDrawState::kHairLine_EdgeType; |
| } |
| } else { |
| } |
| |
| pdesc.fColorMatrixEnabled = random_bool(&random); |
| |
| if (this->getCaps().fDualSourceBlendingSupport) { |
| pdesc.fDualSrcOutput = random_int(&random, ProgramDesc::kDualSrcOutputCnt); |
| } else { |
| pdesc.fDualSrcOutput = ProgramDesc::kNone_DualSrcOutput; |
| } |
| |
| SkAutoTUnref<const GrCustomStage> customStages[GrDrawState::kNumStages]; |
| |
| for (int s = 0; s < GrDrawState::kNumStages; ++s) { |
| StageDesc& stage = pdesc.fStages[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 |= StageTexCoordVertexLayoutBit(s, t); |
| } |
| stage.setEnabled(true); |
| } |
| // use text-formatted verts? |
| if (random_bool(&random)) { |
| pdesc.fVertexLayout |= kTextFormat_VertexLayoutBit; |
| } |
| |
| stage.fCustomStageKey = 0; |
| |
| stage.fOptFlags |= STAGE_OPTS[random_int(&random, GR_ARRAY_COUNT(STAGE_OPTS))]; |
| stage.fInConfigFlags = IN_CONFIG_FLAGS[random_int(&random, GR_ARRAY_COUNT(IN_CONFIG_FLAGS))]; |
| |
| if (stage.isEnabled()) { |
| GrTexture* dummyTextures[] = {dummyTexture1.get(), dummyTexture2.get()}; |
| customStages[s].reset(create_random_effect(&stage, |
| &random, |
| getContext(), |
| dummyTextures)); |
| if (NULL != customStages[s]) { |
| stage.fCustomStageKey = |
| customStages[s]->getFactory().glStageKey(*customStages[s], this->glCaps()); |
| } |
| } |
| } |
| GR_STATIC_ASSERT(sizeof(customStages) == |
| GrDrawState::kNumStages * sizeof(GrCustomStage*)); |
| const GrCustomStage** stages = reinterpret_cast<const GrCustomStage**>(&customStages); |
| SkAutoTUnref<GrGLProgram> program(GrGLProgram::Create(this->glContextInfo(), |
| pdesc, |
| stages)); |
| if (NULL == program.get()) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| static void GLProgramsTest(skiatest::Reporter* reporter, GrContext* context) { |
| GrGpuGL* shadersGpu = static_cast<GrGpuGL*>(context->getGpu()); |
| REPORTER_ASSERT(reporter, shadersGpu->programUnitTest()); |
| } |
| |
| |
| #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 initilializers |
| // 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" |
| |
| void forceLinking(); |
| |
| void forceLinking() { |
| SkLightingImageFilter::CreateDistantLitDiffuse(SkPoint3(0,0,0), 0, 0, 0); |
| } |
| |
| #endif |