cc604e5e9e
Bug: skia: Change-Id: Icd00f81fda5366813f9c959fdc91b0415894cbfc Reviewed-on: https://skia-review.googlesource.com/55360 Reviewed-by: Brian Salomon <bsalomon@google.com> Commit-Queue: Chris Dalton <csmartdalton@google.com>
102 lines
3.0 KiB
C++
102 lines
3.0 KiB
C++
/*
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* Copyright 2017 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkTypes.h"
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#include "Test.h"
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#if SK_SUPPORT_GPU
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#include "GrContext.h"
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#include "GrContextPriv.h"
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#include "GrClip.h"
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#include "GrRenderTargetContext.h"
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#include "GrRenderTargetContextPriv.h"
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#include "GrShape.h"
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#include "GrPathRenderer.h"
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#include "GrPaint.h"
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#include "SkMatrix.h"
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#include "SkRect.h"
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#include "ccpr/GrCoverageCountingPathRenderer.h"
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#include <cmath>
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static constexpr int kCanvasSize = 100;
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class CCPRPathDrawer {
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public:
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CCPRPathDrawer(GrContext* ctx)
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: fCtx(ctx)
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, fCCPR(GrCoverageCountingPathRenderer::CreateIfSupported(*fCtx->caps()))
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, fRTC(fCtx->makeDeferredRenderTargetContext(SkBackingFit::kExact, kCanvasSize,
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kCanvasSize, kRGBA_8888_GrPixelConfig,
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nullptr)) {
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if (fCCPR) {
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fCtx->contextPriv().addOnFlushCallbackObject(fCCPR.get());
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}
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}
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~CCPRPathDrawer() {
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if (fCCPR) {
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fCtx->contextPriv().testingOnly_flushAndRemoveOnFlushCallbackObject(fCCPR.get());
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}
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}
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bool valid() { return fCCPR && fRTC; }
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void clear() { fRTC->clear(nullptr, 0, true); }
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void drawPath(const SkPath& path, GrColor4f color = GrColor4f(0, 1, 0, 1)) {
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GrPaint paint;
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paint.setColor4f(color);
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GrNoClip noClip;
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SkIRect clipBounds = SkIRect::MakeWH(kCanvasSize, kCanvasSize);
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SkMatrix matrix = SkMatrix::I();
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GrShape shape(path);
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fCCPR->drawPath({fCtx, std::move(paint), &GrUserStencilSettings::kUnused, fRTC.get(),
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&noClip, &clipBounds, &matrix, &shape, GrAAType::kCoverage, false});
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}
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void flush() {
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fCtx->flush();
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}
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private:
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GrContext* const fCtx;
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sk_sp<GrCoverageCountingPathRenderer> fCCPR;
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sk_sp<GrRenderTargetContext> fRTC;
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};
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DEF_GPUTEST_FOR_RENDERING_CONTEXTS(GrCCPRTest, reporter, ctxInfo) {
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GrContext* const ctx = ctxInfo.grContext();
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if (!GrCoverageCountingPathRenderer::IsSupported(*ctx->caps())) {
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return;
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}
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CCPRPathDrawer ccpr(ctx);
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if (!ccpr.valid()) {
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ERRORF(reporter, "could not create render target context for ccpr.");
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return;
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}
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// Test very busy paths.
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static constexpr int kNumBusyVerbs = 1 << 17;
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ccpr.clear();
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SkPath busyPath;
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busyPath.moveTo(0, 0); // top left
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busyPath.lineTo(kCanvasSize, kCanvasSize); // bottom right
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for (int i = 2; i < kNumBusyVerbs; ++i) {
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float offset = i * ((float)kCanvasSize / kNumBusyVerbs);
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busyPath.lineTo(kCanvasSize - offset, kCanvasSize + offset); // offscreen
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}
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ccpr.drawPath(busyPath);
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ccpr.flush(); // If this doesn't crash, the test passed.
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// If it does, maybe fiddle with fMaxInstancesPerDrawArraysWithoutCrashing in your
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// platform's GrGLCaps.
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}
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#endif
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