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skia2/tests/GLProgramsTest.cpp
cdalton 9954bc38c4 Use texture barriers to read directly from the RT 
Updates GrXferProcessor to read directly from the RT texture when
texture barriers are supported and it needs to know the dst color.
Also adds the notion of an Xfer barrier and uses it to issue texture
barriers when the XP will read the RT.

BUG=skia:

Review URL: https://codereview.chromium.org/1040303002
2015-04-29 14:17:00 -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 "GrContextFactory.h"
#include "GrInvariantOutput.h"
#include "GrPipeline.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&) {}
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 GrDrawTargetCaps&,
GrTexture*[]) {
return BigKeyProcessor::Create();
}
/*
* Begin test code
*/
static const int kRenderTargetHeight = 1;
static const int kRenderTargetWidth = 1;
static GrRenderTarget* random_render_target(GrContext* context, SkRandom* random) {
// 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;
GrUniqueKey key;
static const GrUniqueKey::Domain kDomain = GrUniqueKey::GenerateDomain();
GrUniqueKey::Builder builder(&key, kDomain, 1);
builder[0] = texDesc.fOrigin;
builder.finish();
GrTexture* texture = context->findAndRefCachedTexture(key);
if (!texture) {
texture = context->createTexture(texDesc, true);
if (texture) {
context->addResourceToCache(key, texture);
}
}
return texture ? texture->asRenderTarget() : NULL;
}
static void set_random_xpf(GrContext* context, const GrDrawTargetCaps& 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 const GrGeometryProcessor* get_random_gp(GrContext* context,
const GrDrawTargetCaps& caps,
SkRandom* random,
GrTexture* dummyTextures[]) {
return GrProcessorTestFactory<GrGeometryProcessor>::CreateStage(random,
context,
caps,
dummyTextures);
}
static void set_random_color_coverage_stages(GrGLGpu* gpu,
GrPipelineBuilder* pipelineBuilder,
int maxStages,
bool usePathRendering,
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;
}
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(int maxStages) {
GrGLGpu* gpu = static_cast<GrGLGpu*>(fContext->getGpu());
// setup dummy textures
GrSurfaceDesc dummyDesc;
dummyDesc.fFlags = kRenderTarget_GrSurfaceFlag;
dummyDesc.fConfig = kSkia8888_GrPixelConfig;
dummyDesc.fWidth = 34;
dummyDesc.fHeight = 18;
SkAutoTUnref<GrTexture> dummyTexture1(gpu->createTexture(dummyDesc, false, NULL, 0));
dummyDesc.fFlags = kNone_GrSurfaceFlags;
dummyDesc.fConfig = kAlpha_8_GrPixelConfig;
dummyDesc.fWidth = 16;
dummyDesc.fHeight = 22;
SkAutoTUnref<GrTexture> dummyTexture2(gpu->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;
// setup clip
SkRect screen = SkRect::MakeWH(SkIntToScalar(kRenderTargetWidth),
SkIntToScalar(kRenderTargetHeight));
SkClipStack stack;
stack.clipDevRect(screen, SkRegion::kReplace_Op, false);
// wrap the SkClipStack in a GrClip
GrClip clip;
clip.setClipStack(&stack);
SkRandom random;
static const int NUM_TESTS = 512;
for (int t = 0; t < NUM_TESTS;) {
// setup random render target(can fail)
SkAutoTUnref<GrRenderTarget> rt(random_render_target(fContext, &random));
if (!rt.get()) {
SkDebugf("Could not allocate render target");
return false;
}
GrPipelineBuilder pipelineBuilder;
pipelineBuilder.setRenderTarget(rt.get());
pipelineBuilder.setClip(clip);
// if path rendering we have to setup a couple of things like the draw type
bool usePathRendering = gpu->glCaps().shaderCaps()->pathRenderingSupport() &&
random.nextBool();
// twiddle drawstate knobs randomly
bool hasGeometryProcessor = !usePathRendering;
SkAutoTUnref<const GrGeometryProcessor> gp;
SkAutoTUnref<const GrPathProcessor> pathProc;
if (hasGeometryProcessor) {
gp.reset(get_random_gp(fContext, gpu->glCaps(), &random, dummyTextures));
} else {
pathProc.reset(GrPathProcessor::Create(GrColor_WHITE));
}
set_random_color_coverage_stages(gpu,
&pipelineBuilder,
maxStages - hasGeometryProcessor,
usePathRendering,
&random,
dummyTextures);
// creates a random xfer processor factory on the draw state
set_random_xpf(fContext, gpu->glCaps(), &pipelineBuilder, &random, dummyTextures);
set_random_state(&pipelineBuilder, &random);
set_random_stencil(&pipelineBuilder, &random);
GrDeviceCoordTexture dstCopy;
const GrPrimitiveProcessor* primProc;
if (hasGeometryProcessor) {
primProc = gp.get();
} else {
primProc = pathProc.get();
}
const GrProcOptInfo& colorPOI = pipelineBuilder.colorProcInfo(primProc);
const GrProcOptInfo& coveragePOI = pipelineBuilder.coverageProcInfo(primProc);
if (!this->setupDstReadIfNecessary(pipelineBuilder, colorPOI, coveragePOI, &dstCopy,
NULL)) {
SkDebugf("Couldn't setup dst read texture");
return false;
}
// create optimized draw state, setup readDst texture if required, and build a descriptor
// and program. ODS creation can fail, so we have to check
GrPipeline pipeline(pipelineBuilder, colorPOI, coveragePOI,
*gpu->caps(), scissor, &dstCopy);
if (pipeline.mustSkip()) {
continue;
}
GrXferBarrierType barrierType;
if (pipeline.getXferProcessor()->willNeedXferBarrier(rt, *gpu->caps(), &barrierType)) {
gpu->xferBarrier(barrierType);
}
GrBatchTracker bt;
primProc->initBatchTracker(&bt, pipeline.getInitBatchTracker());
GrProgramDesc desc;
gpu->buildProgramDesc(&desc, *primProc, pipeline, bt);
GrGpu::DrawArgs args(primProc, &pipeline, &desc, &bt);
SkAutoTUnref<GrGLProgram> program(GrGLProgramBuilder::CreateProgram(args, gpu));
if (NULL == program.get()) {
SkDebugf("Failed to create program!");
return false;
}
// because occasionally optimized drawstate creation will fail for valid reasons, we only
// want to increment on success
++t;
}
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
for (int type = 0; type < GrContextFactory::kLastGLContextType; ++type) {
GrContext* context = factory->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(maxStages));
}
}
}
#endif
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