tests/GrCCPRTest.cpp - platform/external/skqp - Gitiles

 /*
  * 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 CCPRClip : public GrClip {
 public:
     CCPRClip(GrCoverageCountingPathRenderer* ccpr, const SkPath& path) : fCCPR(ccpr), fPath(path) {}

 private:
     bool apply(GrContext*, GrRenderTargetContext* rtc, bool, bool, GrAppliedClip* out,
                SkRect* bounds) const override {
         out->addCoverageFP(fCCPR->makeClipProcessor(rtc->priv().testingOnly_getOpListID(), fPath,
                                                     SkIRect::MakeWH(rtc->width(), rtc->height()),
                                                     rtc->width(), rtc->height()));
         return true;
     }
     bool quickContains(const SkRect&) const final { return false; }
     bool isRRect(const SkRect& rtBounds, SkRRect* rr, GrAA*) const final { return false; }
     void getConservativeBounds(int width, int height, SkIRect* rect, bool* iior) const final {
         rect->set(0, 0, width, height);
         if (iior) {
             *iior = false;
         }
     }
     GrCoverageCountingPathRenderer* const fCCPR;
     const SkPath fPath;
 };

 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, GrRenderTargetContext::CanClearFullscreen::kYes); }
     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 clipFullscreenRect(SkPath clipPath, GrColor4f color = GrColor4f(0, 1, 0, 1)) {
         SkASSERT(this->valid());

         GrPaint paint;
         paint.setColor4f(color);

         fRTC->drawRect(CCPRClip(fCCPR, clipPath), std::move(paint), GrAA::kYes, SkMatrix::I(),
                        SkRect::MakeIWH(kCanvasSize, kCanvasSize));
     }

     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.fIntegerSupport = true;
         mockOptions.fFlatInterpolationSupport = true;

         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, /* options */) { \
         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);
             ccpr.clipFullscreenRect(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.clipFullscreenRect(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 GrCCPRTest_parseEmptyPath : public CCPRTest {
     void onRun(skiatest::Reporter* reporter, CCPRPathDrawer& ccpr) override {
         REPORTER_ASSERT(reporter, SkPathPriv::TestingOnly_unique(fPath));

         // Make a path large enough that ccpr chooses to crop it by the RT bounds, and ends up with
         // an empty path.
         SkPath largeOutsidePath;
         largeOutsidePath.moveTo(-1e30f, -1e30f);
         largeOutsidePath.lineTo(-1e30f, +1e30f);
         largeOutsidePath.lineTo(-1e10f, +1e30f);
         ccpr.drawPath(largeOutsidePath);

         // Normally an empty path is culled before reaching ccpr, however we use a back door for
         // testing so this path will make it.
         SkPath emptyPath;
         SkASSERT(emptyPath.isEmpty());
         ccpr.drawPath(emptyPath);

         // This is the test. It will exercise various internal asserts and verify we do not crash.
         ccpr.flush();

         // Now try again with clips.
         ccpr.clipFullscreenRect(largeOutsidePath);
         ccpr.clipFullscreenRect(emptyPath);
         ccpr.flush();

         // ... and both.
         ccpr.drawPath(largeOutsidePath);
         ccpr.clipFullscreenRect(largeOutsidePath);
         ccpr.drawPath(emptyPath);
         ccpr.clipFullscreenRect(emptyPath);
         ccpr.flush();
     }
 };
 DEF_CCPR_TEST(GrCCPRTest_parseEmptyPath)

 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
	/*
	* 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 CCPRClip : public GrClip {
	public:
	CCPRClip(GrCoverageCountingPathRenderer* ccpr, const SkPath& path) : fCCPR(ccpr), fPath(path) {}

	private:
	bool apply(GrContext, GrRenderTargetContext rtc, bool, bool, GrAppliedClip* out,
	SkRect* bounds) const override {
	out->addCoverageFP(fCCPR->makeClipProcessor(rtc->priv().testingOnly_getOpListID(), fPath,
	SkIRect::MakeWH(rtc->width(), rtc->height()),
	rtc->width(), rtc->height()));
	return true;
	}
	bool quickContains(const SkRect&) const final { return false; }
	bool isRRect(const SkRect& rtBounds, SkRRect* rr, GrAA*) const final { return false; }
	void getConservativeBounds(int width, int height, SkIRect* rect, bool* iior) const final {
	rect->set(0, 0, width, height);
	if (iior) {
	*iior = false;
	}
	}
	GrCoverageCountingPathRenderer* const fCCPR;
	const SkPath fPath;
	};

	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, GrRenderTargetContext::CanClearFullscreen::kYes); }
	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 clipFullscreenRect(SkPath clipPath, GrColor4f color = GrColor4f(0, 1, 0, 1)) {
	SkASSERT(this->valid());

	GrPaint paint;
	paint.setColor4f(color);

	fRTC->drawRect(CCPRClip(fCCPR, clipPath), std::move(paint), GrAA::kYes, SkMatrix::I(),
	SkRect::MakeIWH(kCanvasSize, kCanvasSize));
	}

	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.fIntegerSupport = true;
	mockOptions.fFlatInterpolationSupport = true;

	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, /* options */) { \
	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);
	ccpr.clipFullscreenRect(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.clipFullscreenRect(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 GrCCPRTest_parseEmptyPath : public CCPRTest {
	void onRun(skiatest::Reporter* reporter, CCPRPathDrawer& ccpr) override {
	REPORTER_ASSERT(reporter, SkPathPriv::TestingOnly_unique(fPath));

	// Make a path large enough that ccpr chooses to crop it by the RT bounds, and ends up with
	// an empty path.
	SkPath largeOutsidePath;
	largeOutsidePath.moveTo(-1e30f, -1e30f);
	largeOutsidePath.lineTo(-1e30f, +1e30f);
	largeOutsidePath.lineTo(-1e10f, +1e30f);
	ccpr.drawPath(largeOutsidePath);

	// Normally an empty path is culled before reaching ccpr, however we use a back door for
	// testing so this path will make it.
	SkPath emptyPath;
	SkASSERT(emptyPath.isEmpty());
	ccpr.drawPath(emptyPath);

	// This is the test. It will exercise various internal asserts and verify we do not crash.
	ccpr.flush();

	// Now try again with clips.
	ccpr.clipFullscreenRect(largeOutsidePath);
	ccpr.clipFullscreenRect(emptyPath);
	ccpr.flush();

	// ... and both.
	ccpr.drawPath(largeOutsidePath);
	ccpr.clipFullscreenRect(largeOutsidePath);
	ccpr.drawPath(emptyPath);
	ccpr.clipFullscreenRect(emptyPath);
	ccpr.flush();
	}
	};
	DEF_CCPR_TEST(GrCCPRTest_parseEmptyPath)

	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