skia2/tests/GrPipelineDynamicStateTest.cpp

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/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "include/core/SkTypes.h"
#include "tests/Test.h"
#include "include/gpu/GrContext.h"
#include "include/private/GrRecordingContext.h"
#include "src/core/SkMakeUnique.h"
#include "src/gpu/GrColor.h"
#include "src/gpu/GrContextPriv.h"
#include "src/gpu/GrGeometryProcessor.h"
#include "src/gpu/GrImageInfo.h"
#include "src/gpu/GrMemoryPool.h"
#include "src/gpu/GrOpFlushState.h"
#include "src/gpu/GrOpsRenderPass.h"
#include "src/gpu/GrProgramInfo.h"
#include "src/gpu/GrRecordingContextPriv.h"
#include "src/gpu/GrRenderTargetContext.h"
#include "src/gpu/GrRenderTargetContextPriv.h"
#include "src/gpu/GrResourceProvider.h"
#include "src/gpu/glsl/GrGLSLFragmentShaderBuilder.h"
#include "src/gpu/glsl/GrGLSLGeometryProcessor.h"
#include "src/gpu/glsl/GrGLSLVarying.h"
#include "src/gpu/glsl/GrGLSLVertexGeoBuilder.h"
/**
* This is a GPU-backend specific test for dynamic pipeline state. It draws boxes using dynamic
* scissor rectangles then reads back the result to verify a successful test.
*/
static constexpr int kScreenSize = 6;
static constexpr int kNumMeshes = 4;
static constexpr int kScreenSplitX = kScreenSize/2;
static constexpr int kScreenSplitY = kScreenSize/2;
static const SkIRect kDynamicScissors[kNumMeshes] = {
SkIRect::MakeLTRB(0, 0, kScreenSplitX, kScreenSplitY),
SkIRect::MakeLTRB(0, kScreenSplitY, kScreenSplitX, kScreenSize),
SkIRect::MakeLTRB(kScreenSplitX, 0, kScreenSize, kScreenSplitY),
SkIRect::MakeLTRB(kScreenSplitX, kScreenSplitY, kScreenSize, kScreenSize),
};
static const GrColor kMeshColors[kNumMeshes] {
GrColorPackRGBA(255, 0, 0, 255),
GrColorPackRGBA(0, 255, 0, 255),
GrColorPackRGBA(0, 0, 255, 255),
GrColorPackRGBA(0, 0, 0, 255)
};
struct Vertex {
float fX;
float fY;
GrColor fColor;
};
class GrPipelineDynamicStateTestProcessor : public GrGeometryProcessor {
public:
static GrGeometryProcessor* Make(SkArenaAlloc* arena) {
return arena->make<GrPipelineDynamicStateTestProcessor>();
}
const char* name() const override { return "GrPipelineDynamicStateTest Processor"; }
void getGLSLProcessorKey(const GrShaderCaps&, GrProcessorKeyBuilder*) const final {}
GrGLSLPrimitiveProcessor* createGLSLInstance(const GrShaderCaps&) const final;
const Attribute& inVertex() const { return kAttributes[0]; }
const Attribute& inColor() const { return kAttributes[1]; }
private:
friend class ::SkArenaAlloc; // for access to ctor
GrPipelineDynamicStateTestProcessor()
: INHERITED(kGrPipelineDynamicStateTestProcessor_ClassID) {
this->setVertexAttributes(kAttributes, SK_ARRAY_COUNT(kAttributes));
}
static constexpr Attribute kAttributes[] = {
{"vertex", kFloat2_GrVertexAttribType, kHalf2_GrSLType},
{"color", kUByte4_norm_GrVertexAttribType, kHalf4_GrSLType},
};
friend class GLSLPipelineDynamicStateTestProcessor;
typedef GrGeometryProcessor INHERITED;
};
constexpr GrPrimitiveProcessor::Attribute GrPipelineDynamicStateTestProcessor::kAttributes[];
class GLSLPipelineDynamicStateTestProcessor : public GrGLSLGeometryProcessor {
void setData(const GrGLSLProgramDataManager& pdman, const GrPrimitiveProcessor&,
FPCoordTransformIter&& transformIter) final {}
void onEmitCode(EmitArgs& args, GrGPArgs* gpArgs) final {
const GrPipelineDynamicStateTestProcessor& mp =
args.fGP.cast<GrPipelineDynamicStateTestProcessor>();
GrGLSLVaryingHandler* varyingHandler = args.fVaryingHandler;
varyingHandler->emitAttributes(mp);
varyingHandler->addPassThroughAttribute(mp.inColor(), args.fOutputColor);
GrGLSLVertexBuilder* v = args.fVertBuilder;
v->codeAppendf("float2 vertex = %s;", mp.inVertex().name());
gpArgs->fPositionVar.set(kFloat2_GrSLType, "vertex");
GrGLSLFPFragmentBuilder* f = args.fFragBuilder;
f->codeAppendf("%s = half4(1);", args.fOutputCoverage);
}
};
GrGLSLPrimitiveProcessor*
GrPipelineDynamicStateTestProcessor::createGLSLInstance(const GrShaderCaps&) const {
return new GLSLPipelineDynamicStateTestProcessor;
}
class GrPipelineDynamicStateTestOp : public GrDrawOp {
public:
DEFINE_OP_CLASS_ID
static std::unique_ptr<GrDrawOp> Make(GrRecordingContext* context,
GrScissorTest scissorTest,
sk_sp<const GrBuffer> vbuff) {
GrOpMemoryPool* pool = context->priv().opMemoryPool();
return pool->allocate<GrPipelineDynamicStateTestOp>(scissorTest, std::move(vbuff));
}
private:
friend class GrOpMemoryPool;
GrPipelineDynamicStateTestOp(GrScissorTest scissorTest, sk_sp<const GrBuffer> vbuff)
: INHERITED(ClassID())
, fScissorTest(scissorTest)
, fVertexBuffer(std::move(vbuff)) {
this->setBounds(SkRect::MakeIWH(kScreenSize, kScreenSize),
HasAABloat::kNo, IsHairline::kNo);
}
const char* name() const override { return "GrPipelineDynamicStateTestOp"; }
FixedFunctionFlags fixedFunctionFlags() const override { return FixedFunctionFlags::kNone; }
GrProcessorSet::Analysis finalize(const GrCaps&, const GrAppliedClip*,
bool hasMixedSampledCoverage, GrClampType) override {
return GrProcessorSet::EmptySetAnalysis();
}
void onPrepare(GrOpFlushState*) override {}
void onExecute(GrOpFlushState* flushState, const SkRect& chainBounds) override {
GrPipeline pipeline(fScissorTest, SkBlendMode::kSrc,
flushState->drawOpArgs().outputSwizzle());
SkSTArray<kNumMeshes, GrMesh> meshes;
for (int i = 0; i < kNumMeshes; ++i) {
GrMesh& mesh = meshes.emplace_back(GrPrimitiveType::kTriangleStrip);
mesh.setNonIndexedNonInstanced(4);
mesh.setVertexData(fVertexBuffer, 4 * i);
}
GrPipeline::DynamicStateArrays dynamicState;
dynamicState.fScissorRects = kDynamicScissors;
auto geomProc = GrPipelineDynamicStateTestProcessor::Make(flushState->allocator());
GrProgramInfo programInfo(flushState->proxy()->numSamples(),
flushState->proxy()->numStencilSamples(),
flushState->drawOpArgs().origin(),
&pipeline,
geomProc,
nullptr,
&dynamicState, 0, GrPrimitiveType::kTriangleStrip);
flushState->opsRenderPass()->draw(programInfo, meshes.begin(), 4,
SkRect::MakeIWH(kScreenSize, kScreenSize));
}
GrScissorTest fScissorTest;
const sk_sp<const GrBuffer> fVertexBuffer;
typedef GrDrawOp INHERITED;
};
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(GrPipelineDynamicStateTest, reporter, ctxInfo) {
GrContext* context = ctxInfo.grContext();
GrResourceProvider* rp = context->priv().resourceProvider();
auto rtc = context->priv().makeDeferredRenderTargetContext(
SkBackingFit::kExact, kScreenSize, kScreenSize, GrColorType::kRGBA_8888, nullptr);
if (!rtc) {
ERRORF(reporter, "could not create render target context.");
return;
}
constexpr float d = (float) kScreenSize;
Vertex vdata[kNumMeshes * 4] = {
{0, 0, kMeshColors[0]},
{0, d, kMeshColors[0]},
{d, 0, kMeshColors[0]},
{d, d, kMeshColors[0]},
{0, 0, kMeshColors[1]},
{0, d, kMeshColors[1]},
{d, 0, kMeshColors[1]},
{d, d, kMeshColors[1]},
{0, 0, kMeshColors[2]},
{0, d, kMeshColors[2]},
{d, 0, kMeshColors[2]},
{d, d, kMeshColors[2]},
{0, 0, kMeshColors[3]},
{0, d, kMeshColors[3]},
{d, 0, kMeshColors[3]},
{d, d, kMeshColors[3]}
};
sk_sp<const GrBuffer> vbuff(rp->createBuffer(sizeof(vdata), GrGpuBufferType::kVertex,
kDynamic_GrAccessPattern, vdata));
if (!vbuff) {
ERRORF(reporter, "vbuff is null.");
return;
}
uint32_t resultPx[kScreenSize * kScreenSize];
for (GrScissorTest scissorTest : {GrScissorTest::kEnabled, GrScissorTest::kDisabled}) {
rtc->clear(nullptr, SkPMColor4f::FromBytes_RGBA(0xbaaaaaad),
GrRenderTargetContext::CanClearFullscreen::kYes);
rtc->priv().testingOnly_addDrawOp(
GrPipelineDynamicStateTestOp::Make(context, scissorTest, vbuff));
rtc->readPixels(SkImageInfo::Make(kScreenSize, kScreenSize,
kRGBA_8888_SkColorType, kPremul_SkAlphaType),
resultPx, 4 * kScreenSize, {0, 0});
for (int y = 0; y < kScreenSize; ++y) {
for (int x = 0; x < kScreenSize; ++x) {
int expectedColorIdx;
if (GrScissorTest::kEnabled == scissorTest) {
expectedColorIdx = (x < kScreenSplitX ? 0 : 2) + (y < kScreenSplitY ? 0 : 1);
} else {
expectedColorIdx = kNumMeshes - 1;
}
uint32_t expected = kMeshColors[expectedColorIdx];
uint32_t actual = resultPx[y * kScreenSize + x];
if (expected != actual) {
ERRORF(reporter, "[scissor=%s] pixel (%i,%i): got 0x%x expected 0x%x",
GrScissorTest::kEnabled == scissorTest ? "enabled" : "disabled", x, y,
actual, expected);
return;
}
}
}
}
}