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skia2/tests/GrPipelineDynamicStateTest.cpp
Chris Dalton 1b6a43cf20 Move user stencil settings from GrPipeline to GrProgramInfo 
Bug: skia:10419
Change-Id: If11d28f6d9348ba0011825f719123c09f0103603
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/319481
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
2020-09-25 21:12:50 +00:00

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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/GrDirectContext.h"
#include "include/gpu/GrRecordingContext.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;
using INHERITED = GrGeometryProcessor;
};
constexpr GrPrimitiveProcessor::Attribute GrPipelineDynamicStateTestProcessor::kAttributes[];
class GLSLPipelineDynamicStateTestProcessor : public GrGLSLGeometryProcessor {
void setData(const GrGLSLProgramDataManager& pdman, const GrPrimitiveProcessor&) 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 onPrePrepare(GrRecordingContext*,
const GrSurfaceProxyView* writeView,
GrAppliedClip*,
const GrXferProcessor::DstProxyView&,
GrXferBarrierFlags renderPassXferBarriers) override {}
void onPrepare(GrOpFlushState*) override {}
void onExecute(GrOpFlushState* flushState, const SkRect& chainBounds) override {
GrPipeline pipeline(fScissorTest, SkBlendMode::kSrc,
flushState->drawOpArgs().writeSwizzle());
SkSTArray<kNumMeshes, GrSimpleMesh> meshes;
for (int i = 0; i < kNumMeshes; ++i) {
GrSimpleMesh& mesh = meshes.push_back();
mesh.set(fVertexBuffer, 4, 4 * i);
}
auto geomProc = GrPipelineDynamicStateTestProcessor::Make(flushState->allocator());
GrProgramInfo programInfo(flushState->proxy()->numSamples(),
flushState->proxy()->numStencilSamples(),
flushState->proxy()->backendFormat(),
flushState->writeView()->origin(),
&pipeline,
&GrUserStencilSettings::kUnused,
geomProc,
GrPrimitiveType::kTriangleStrip, 0,
flushState->renderPassBarriers());
flushState->bindPipeline(programInfo, SkRect::MakeIWH(kScreenSize, kScreenSize));
for (int i = 0; i < 4; ++i) {
if (fScissorTest == GrScissorTest::kEnabled) {
flushState->setScissorRect(kDynamicScissors[i]);
}
flushState->drawMesh(meshes[i]);
}
}
GrScissorTest fScissorTest;
const sk_sp<const GrBuffer> fVertexBuffer;
using INHERITED = GrDrawOp;
};
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(GrPipelineDynamicStateTest, reporter, ctxInfo) {
auto dContext = ctxInfo.directContext();
GrResourceProvider* rp = dContext->priv().resourceProvider();
auto rtc = GrRenderTargetContext::Make(
dContext, GrColorType::kRGBA_8888, nullptr, SkBackingFit::kExact,
{kScreenSize, kScreenSize});
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(SkPMColor4f::FromBytes_RGBA(0xbaaaaaad));
rtc->priv().testingOnly_addDrawOp(
GrPipelineDynamicStateTestOp::Make(dContext, scissorTest, vbuff));
auto ii = SkImageInfo::Make(kScreenSize, kScreenSize,
kRGBA_8888_SkColorType, kPremul_SkAlphaType);
rtc->readPixels(dContext, ii, 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;
}
}
}
}
}
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