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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 "SkTypes.h"
#include "Test.h"
#if SK_SUPPORT_GPU
#include "GrContext.h"
#include "GrContextPriv.h"
#include "GrClip.h"
#include "GrDrawingManager.h"
#include "GrPathRenderer.h"
#include "GrPaint.h"
#include "GrRenderTargetContext.h"
#include "GrRenderTargetContextPriv.h"
#include "GrShape.h"
#include "SkMatrix.h"
#include "SkPathPriv.h"
#include "SkRect.h"
#include "ccpr/GrCoverageCountingPathRenderer.h"
#include "mock/GrMockTypes.h"
#include <cmath>
static constexpr int kCanvasSize = 100;
class CCPRPathDrawer {
public:
CCPRPathDrawer(GrContext* ctx, skiatest::Reporter* reporter)
: fCtx(ctx)
, fCCPR(fCtx->contextPriv().drawingManager()->getCoverageCountingPathRenderer())
, fRTC(fCtx->makeDeferredRenderTargetContext(SkBackingFit::kExact, kCanvasSize,
kCanvasSize, kRGBA_8888_GrPixelConfig,
nullptr)) {
if (!fCCPR) {
ERRORF(reporter, "ccpr not enabled in GrContext for ccpr tests");
}
if (!fRTC) {
ERRORF(reporter, "failed to create GrRenderTargetContext for ccpr tests");
}
}
bool valid() const { return fCCPR && fRTC; }
void clear() const { fRTC->clear(nullptr, 0, true); }
void abandonGrContext() { fCtx = nullptr; fCCPR = nullptr; fRTC = nullptr; }
void drawPath(SkPath path, GrColor4f color = GrColor4f(0, 1, 0, 1)) const {
SkASSERT(this->valid());
GrPaint paint;
paint.setColor4f(color);
GrNoClip noClip;
SkIRect clipBounds = SkIRect::MakeWH(kCanvasSize, kCanvasSize);
SkMatrix matrix = SkMatrix::I();
path.setIsVolatile(true);
GrShape shape(path);
fCCPR->drawPath({fCtx, std::move(paint), &GrUserStencilSettings::kUnused, fRTC.get(),
&noClip, &clipBounds, &matrix, &shape, GrAAType::kCoverage, false});
}
void flush() const {
SkASSERT(this->valid());
fCtx->flush();
}
private:
GrContext* fCtx;
GrCoverageCountingPathRenderer* fCCPR;
sk_sp<GrRenderTargetContext> fRTC;
};
class CCPRTest {
public:
void run(skiatest::Reporter* reporter) {
GrMockOptions mockOptions;
mockOptions.fInstanceAttribSupport = true;
mockOptions.fMapBufferFlags = GrCaps::kCanMap_MapFlag;
mockOptions.fConfigOptions[kAlpha_half_GrPixelConfig].fRenderable[0] = true;
mockOptions.fConfigOptions[kAlpha_half_GrPixelConfig].fTexturable = true;
mockOptions.fGeometryShaderSupport = true;
mockOptions.fTexelBufferSupport = true;
mockOptions.fIntegerSupport = true;
mockOptions.fFlatInterpolationSupport = true;
mockOptions.fMaxVertexSamplers = 1;
GrContextOptions ctxOptions;
ctxOptions.fAllowPathMaskCaching = false;
ctxOptions.fGpuPathRenderers = GpuPathRenderers::kCoverageCounting;
fMockContext = GrContext::MakeMock(&mockOptions, ctxOptions);
if (!fMockContext) {
ERRORF(reporter, "could not create mock context");
return;
}
if (!fMockContext->unique()) {
ERRORF(reporter, "mock context is not unique");
return;
}
CCPRPathDrawer ccpr(fMockContext.get(), reporter);
if (!ccpr.valid()) {
return;
}
fPath.moveTo(0, 0);
fPath.cubicTo(50, 50, 0, 50, 50, 0);
this->onRun(reporter, ccpr);
}
virtual ~CCPRTest() {}
protected:
virtual void onRun(skiatest::Reporter* reporter, CCPRPathDrawer& ccpr) = 0;
sk_sp<GrContext> fMockContext;
SkPath fPath;
};
#define DEF_CCPR_TEST(name) \
DEF_GPUTEST(name, reporter, factory) { \
name test; \
test.run(reporter); \
}
class GrCCPRTest_cleanup : public CCPRTest {
void onRun(skiatest::Reporter* reporter, CCPRPathDrawer& ccpr) override {
REPORTER_ASSERT(reporter, SkPathPriv::TestingOnly_unique(fPath));
// Ensure paths get unreffed.
for (int i = 0; i < 10; ++i) {
ccpr.drawPath(fPath);
}
REPORTER_ASSERT(reporter, !SkPathPriv::TestingOnly_unique(fPath));
ccpr.flush();
REPORTER_ASSERT(reporter, SkPathPriv::TestingOnly_unique(fPath));
// Ensure paths get unreffed when we delete the context without flushing.
for (int i = 0; i < 10; ++i) {
ccpr.drawPath(fPath);
}
ccpr.abandonGrContext();
REPORTER_ASSERT(reporter, !SkPathPriv::TestingOnly_unique(fPath));
fMockContext.reset();
REPORTER_ASSERT(reporter, SkPathPriv::TestingOnly_unique(fPath));
}
};
DEF_CCPR_TEST(GrCCPRTest_cleanup)
class GrCCPRTest_unregisterCulledOps : public CCPRTest {
void onRun(skiatest::Reporter* reporter, CCPRPathDrawer& ccpr) override {
REPORTER_ASSERT(reporter, SkPathPriv::TestingOnly_unique(fPath));
// Ensure Ops get unregistered from CCPR when culled early.
ccpr.drawPath(fPath);
REPORTER_ASSERT(reporter, !SkPathPriv::TestingOnly_unique(fPath));
ccpr.clear(); // Clear should delete the CCPR Op.
REPORTER_ASSERT(reporter, SkPathPriv::TestingOnly_unique(fPath));
ccpr.flush(); // Should not crash (DrawPathsOp should have unregistered itself).
// Ensure Op unregisters work when we delete the context without flushing.
ccpr.drawPath(fPath);
REPORTER_ASSERT(reporter, !SkPathPriv::TestingOnly_unique(fPath));
ccpr.clear(); // Clear should delete the CCPR DrawPathsOp.
REPORTER_ASSERT(reporter, SkPathPriv::TestingOnly_unique(fPath));
ccpr.abandonGrContext();
fMockContext.reset(); // Should not crash (DrawPathsOp should have unregistered itself).
}
};
DEF_CCPR_TEST(GrCCPRTest_unregisterCulledOps)
class CCPRRenderingTest {
public:
void run(skiatest::Reporter* reporter, GrContext* ctx) const {
if (!ctx->contextPriv().drawingManager()->getCoverageCountingPathRenderer()) {
return; // CCPR is not enabled on this GPU.
}
CCPRPathDrawer ccpr(ctx, reporter);
if (!ccpr.valid()) {
return;
}
this->onRun(reporter, ccpr);
}
virtual ~CCPRRenderingTest() {}
protected:
virtual void onRun(skiatest::Reporter* reporter, const CCPRPathDrawer& ccpr) const = 0;
};
#define DEF_CCPR_RENDERING_TEST(name) \
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(name, reporter, ctxInfo) { \
name test; \
test.run(reporter, ctxInfo.grContext()); \
}
class GrCCPRTest_busyPath : public CCPRRenderingTest {
void onRun(skiatest::Reporter* reporter, const CCPRPathDrawer& ccpr) const override {
static constexpr int kNumBusyVerbs = 1 << 17;
ccpr.clear();
SkPath busyPath;
busyPath.moveTo(0, 0); // top left
busyPath.lineTo(kCanvasSize, kCanvasSize); // bottom right
for (int i = 2; i < kNumBusyVerbs; ++i) {
float offset = i * ((float)kCanvasSize / kNumBusyVerbs);
busyPath.lineTo(kCanvasSize - offset, kCanvasSize + offset); // offscreen
}
ccpr.drawPath(busyPath);
ccpr.flush(); // If this doesn't crash, the test passed.
// If it does, maybe fiddle with fMaxInstancesPerDrawArraysWithoutCrashing in
// your platform's GrGLCaps.
}
};
DEF_CCPR_RENDERING_TEST(GrCCPRTest_busyPath)
#endif
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