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skia2/tests/GLProgramsTest.cpp
vbuzinov dded69693d Implement support for mixed sampled render targets 
Adds a new FBO type kStencil_MSFBOType that is selected whenever
NV_framebuffer_mixed_samples extension is available.  In this new
FBO type a non-msaa color buffer is created with a multisampled
stencil buffer attachment.

Replaces numSamples() with separate numColorSamples and numStencilSamples
methods in RenderTarget.

In mixed samples mode non-MSAA codepaths are used to draw simple shapes,
while NVPR-rendered paths and text are rendered with a multisampled
stencil.

BUG=skia:3177

Review URL: https://codereview.chromium.org/1001503002
2015-06-12 08:59:45 -07:00

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/*
* 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 "GrAutoLocaleSetter.h"
#include "GrBatch.h"
#include "GrBatchTest.h"
#include "GrContextFactory.h"
#include "GrInvariantOutput.h"
#include "GrPipeline.h"
#include "GrResourceProvider.h"
#include "GrTest.h"
#include "GrXferProcessor.h"
#include "SkChecksum.h"
#include "SkRandom.h"
#include "Test.h"
#include "effects/GrConfigConversionEffect.h"
#include "effects/GrPorterDuffXferProcessor.h"
#include "gl/GrGLGpu.h"
#include "gl/GrGLPathRendering.h"
#include "gl/builders/GrGLProgramBuilder.h"
/*
* A dummy processor which just tries to insert a massive key and verify that it can retrieve the
* whole thing correctly
*/
static const uint32_t kMaxKeySize = 1024;
class GLBigKeyProcessor : public GrGLFragmentProcessor {
public:
GLBigKeyProcessor(const GrProcessor&) {}
virtual void emitCode(GrGLFPBuilder* builder,
const GrFragmentProcessor& fp,
const char* outputColor,
const char* inputColor,
const TransformedCoordsArray&,
const TextureSamplerArray&) {
// pass through
GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder();
fsBuilder->codeAppendf("%s = %s;\n", outputColor, inputColor);
}
static void GenKey(const GrProcessor& processor, const GrGLSLCaps&, GrProcessorKeyBuilder* b) {
for (uint32_t i = 0; i < kMaxKeySize; i++) {
b->add32(i);
}
}
private:
typedef GrGLFragmentProcessor INHERITED;
};
class BigKeyProcessor : public GrFragmentProcessor {
public:
static GrFragmentProcessor* Create() {
GR_CREATE_STATIC_PROCESSOR(gBigKeyProcessor, BigKeyProcessor, ())
return SkRef(gBigKeyProcessor);
}
const char* name() const override { return "Big Ole Key"; }
virtual void getGLProcessorKey(const GrGLSLCaps& caps,
GrProcessorKeyBuilder* b) const override {
GLBigKeyProcessor::GenKey(*this, caps, b);
}
GrGLFragmentProcessor* createGLInstance() const override {
return SkNEW_ARGS(GLBigKeyProcessor, (*this));
}
private:
BigKeyProcessor() {
this->initClassID<BigKeyProcessor>();
}
bool onIsEqual(const GrFragmentProcessor&) const override { return true; }
void onComputeInvariantOutput(GrInvariantOutput* inout) const override { }
GR_DECLARE_FRAGMENT_PROCESSOR_TEST;
typedef GrFragmentProcessor INHERITED;
};
GR_DEFINE_FRAGMENT_PROCESSOR_TEST(BigKeyProcessor);
GrFragmentProcessor* BigKeyProcessor::TestCreate(SkRandom*,
GrContext*,
const GrCaps&,
GrTexture*[]) {
return BigKeyProcessor::Create();
}
/*
* Begin test code
*/
static const int kRenderTargetHeight = 1;
static const int kRenderTargetWidth = 1;
static GrRenderTarget* random_render_target(GrTextureProvider* textureProvider, SkRandom* random,
const GrCaps* caps) {
// setup render target
GrTextureParams params;
GrSurfaceDesc texDesc;
texDesc.fWidth = kRenderTargetWidth;
texDesc.fHeight = kRenderTargetHeight;
texDesc.fFlags = kRenderTarget_GrSurfaceFlag;
texDesc.fConfig = kRGBA_8888_GrPixelConfig;
texDesc.fOrigin = random->nextBool() == true ? kTopLeft_GrSurfaceOrigin :
kBottomLeft_GrSurfaceOrigin;
texDesc.fSampleCnt = random->nextBool() == true ? SkTMin(4, caps->maxSampleCount()) : 0;
GrUniqueKey key;
static const GrUniqueKey::Domain kDomain = GrUniqueKey::GenerateDomain();
GrUniqueKey::Builder builder(&key, kDomain, 2);
builder[0] = texDesc.fOrigin;
builder[1] = texDesc.fSampleCnt;
builder.finish();
GrTexture* texture = textureProvider->findAndRefTextureByUniqueKey(key);
if (!texture) {
texture = textureProvider->createTexture(texDesc, true);
if (texture) {
textureProvider->assignUniqueKeyToTexture(key, texture);
}
}
return texture ? texture->asRenderTarget() : NULL;
}
static void set_random_xpf(GrContext* context, const GrCaps& caps,
GrPipelineBuilder* pipelineBuilder, SkRandom* random,
GrTexture* dummyTextures[]) {
SkAutoTUnref<const GrXPFactory> xpf(
GrProcessorTestFactory<GrXPFactory>::CreateStage(random, context, caps, dummyTextures));
SkASSERT(xpf);
pipelineBuilder->setXPFactory(xpf.get());
}
static void set_random_color_coverage_stages(GrGpu* gpu,
GrPipelineBuilder* pipelineBuilder,
int maxStages,
SkRandom* random,
GrTexture* dummyTextures[]) {
int numProcs = random->nextULessThan(maxStages + 1);
int numColorProcs = random->nextULessThan(numProcs + 1);
for (int s = 0; s < numProcs;) {
SkAutoTUnref<const GrFragmentProcessor> fp(
GrProcessorTestFactory<GrFragmentProcessor>::CreateStage(random,
gpu->getContext(),
*gpu->caps(),
dummyTextures));
SkASSERT(fp);
// finally add the stage to the correct pipeline in the drawstate
if (s < numColorProcs) {
pipelineBuilder->addColorProcessor(fp);
} else {
pipelineBuilder->addCoverageProcessor(fp);
}
++s;
}
}
static void set_random_state(GrPipelineBuilder* pipelineBuilder, SkRandom* random) {
int state = 0;
for (int i = 1; i <= GrPipelineBuilder::kLast_Flag; i <<= 1) {
state |= random->nextBool() * i;
}
// If we don't have an MSAA rendertarget then we have to disable useHWAA
if ((state | GrPipelineBuilder::kHWAntialias_Flag) &&
!pipelineBuilder->getRenderTarget()->isUnifiedMultisampled()) {
state &= ~GrPipelineBuilder::kHWAntialias_Flag;
}
pipelineBuilder->enableState(state);
}
// right now, the only thing we seem to care about in drawState's stencil is 'doesWrite()'
static void set_random_stencil(GrPipelineBuilder* pipelineBuilder, SkRandom* random) {
GR_STATIC_CONST_SAME_STENCIL(kDoesWriteStencil,
kReplace_StencilOp,
kReplace_StencilOp,
kAlways_StencilFunc,
0xffff,
0xffff,
0xffff);
GR_STATIC_CONST_SAME_STENCIL(kDoesNotWriteStencil,
kKeep_StencilOp,
kKeep_StencilOp,
kNever_StencilFunc,
0xffff,
0xffff,
0xffff);
if (random->nextBool()) {
pipelineBuilder->setStencil(kDoesWriteStencil);
} else {
pipelineBuilder->setStencil(kDoesNotWriteStencil);
}
}
bool GrDrawTarget::programUnitTest(GrContext* context, int maxStages) {
// setup dummy textures
GrSurfaceDesc dummyDesc;
dummyDesc.fFlags = kRenderTarget_GrSurfaceFlag;
dummyDesc.fConfig = kSkia8888_GrPixelConfig;
dummyDesc.fWidth = 34;
dummyDesc.fHeight = 18;
SkAutoTUnref<GrTexture> dummyTexture1(
fResourceProvider->createTexture(dummyDesc, false, NULL, 0));
dummyDesc.fFlags = kNone_GrSurfaceFlags;
dummyDesc.fConfig = kAlpha_8_GrPixelConfig;
dummyDesc.fWidth = 16;
dummyDesc.fHeight = 22;
SkAutoTUnref<GrTexture> dummyTexture2(
fResourceProvider->createTexture(dummyDesc, false, NULL, 0));
if (!dummyTexture1 || ! dummyTexture2) {
SkDebugf("Could not allocate dummy textures");
return false;
}
GrTexture* dummyTextures[] = {dummyTexture1.get(), dummyTexture2.get()};
// dummy scissor state
GrScissorState scissor;
// wide open clip
GrClip clip;
SkRandom random;
static const int NUM_TESTS = 2048;
for (int t = 0; t < NUM_TESTS; t++) {
// setup random render target(can fail)
SkAutoTUnref<GrRenderTarget> rt(random_render_target(
fResourceProvider, &random, this->caps()));
if (!rt.get()) {
SkDebugf("Could not allocate render target");
return false;
}
GrPipelineBuilder pipelineBuilder;
pipelineBuilder.setRenderTarget(rt.get());
pipelineBuilder.setClip(clip);
SkAutoTUnref<GrBatch> batch(GrRandomBatch(&random, context));
SkASSERT(batch);
set_random_color_coverage_stages(fGpu,
&pipelineBuilder,
maxStages,
&random,
dummyTextures);
// creates a random xfer processor factory on the draw state
set_random_xpf(context, *fGpu->caps(), &pipelineBuilder, &random, dummyTextures);
set_random_state(&pipelineBuilder, &random);
set_random_stencil(&pipelineBuilder, &random);
this->drawBatch(&pipelineBuilder, batch);
}
// Flush everything, test passes if flush is successful(ie, no asserts are hit, no crashes)
this->flush();
return true;
}
DEF_GPUTEST(GLPrograms, reporter, factory) {
// Set a locale that would cause shader compilation to fail because of , as decimal separator.
// skbug 3330
#ifdef SK_BUILD_FOR_WIN
GrAutoLocaleSetter als("sv-SE");
#else
GrAutoLocaleSetter als("sv_SE.UTF-8");
#endif
// We suppress prints to avoid spew
GrContextOptions opts;
opts.fSuppressPrints = true;
GrContextFactory debugFactory(opts);
for (int type = 0; type < GrContextFactory::kLastGLContextType; ++type) {
GrContext* context = debugFactory.get(static_cast<GrContextFactory::GLContextType>(type));
if (context) {
GrGLGpu* gpu = static_cast<GrGLGpu*>(context->getGpu());
/*
* For the time being, we only support the test with desktop GL or for android on
* ARM platforms
* TODO When we run ES 3.00 GLSL in more places, test again
*/
int maxStages;
if (kGL_GrGLStandard == gpu->glStandard() ||
kARM_GrGLVendor == gpu->ctxInfo().vendor()) {
maxStages = 6;
} else if (kTegra3_GrGLRenderer == gpu->ctxInfo().renderer() ||
kOther_GrGLRenderer == gpu->ctxInfo().renderer()) {
maxStages = 1;
} else {
return;
}
#if SK_ANGLE
// Some long shaders run out of temporary registers in the D3D compiler on ANGLE.
if (type == GrContextFactory::kANGLE_GLContextType) {
maxStages = 2;
}
#endif
GrTestTarget target;
context->getTestTarget(&target);
REPORTER_ASSERT(reporter, target.target()->programUnitTest(context, maxStages));
}
}
}
#endif
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