148 lines
5.4 KiB
C++
148 lines
5.4 KiB
C++
/*
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* Copyright 2015 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 "gm/gm.h"
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#include "include/core/SkBlendMode.h"
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#include "include/core/SkCanvas.h"
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#include "include/core/SkColor.h"
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#include "include/core/SkMatrix.h"
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#include "include/core/SkPaint.h"
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#include "include/core/SkRRect.h"
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#include "include/core/SkRect.h"
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#include "include/core/SkScalar.h"
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#include "include/core/SkSize.h"
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#include "include/core/SkString.h"
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#include "include/core/SkTypes.h"
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#include "include/private/GrTypesPriv.h"
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#include "src/core/SkCanvasPriv.h"
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#include "src/gpu/GrCaps.h"
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#include "src/gpu/GrFragmentProcessor.h"
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#include "src/gpu/GrPaint.h"
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#include "src/gpu/effects/GrPorterDuffXferProcessor.h"
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#include "src/gpu/effects/GrRRectEffect.h"
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#include "src/gpu/ops/FillRectOp.h"
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#include "src/gpu/ops/GrDrawOp.h"
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#include "src/gpu/v1/SurfaceDrawContext_v1.h"
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#include "tools/ToolUtils.h"
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#include <memory>
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#include <utility>
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namespace skiagm {
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///////////////////////////////////////////////////////////////////////////////
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class BigRRectAAEffectGM : public GpuGM {
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public:
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BigRRectAAEffectGM(const SkRRect& rrect, const char* name)
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: fRRect(rrect)
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, fName(name) {
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this->setBGColor(ToolUtils::color_to_565(SK_ColorBLUE));
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// Each test case draws the rrect with gaps around it.
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fTestWidth = SkScalarCeilToInt(rrect.width()) + 2 * kGap;
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fTestHeight = SkScalarCeilToInt(rrect.height()) + 2 * kGap;
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// Add a pad between test cases.
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fTestOffsetX = fTestWidth + kPad;
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fTestOffsetY = fTestHeight + kPad;
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// We draw two tests in x (fill and inv-fill) and pad around
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// all four sides of the image.
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fWidth = 2 * fTestOffsetX + kPad;
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fHeight = fTestOffsetY + kPad;
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}
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protected:
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SkString onShortName() override {
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SkString name;
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name.printf("big_rrect_%s_aa_effect", fName);
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return name;
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}
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SkISize onISize() override { return SkISize::Make(fWidth, fHeight); }
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DrawResult onDraw(GrRecordingContext* rContext, SkCanvas* canvas, SkString* errorMsg) override {
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auto sdc = SkCanvasPriv::TopDeviceSurfaceDrawContext(canvas);
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if (!sdc) {
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*errorMsg = kErrorMsg_DrawSkippedGpuOnly;
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return DrawResult::kSkip;
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}
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int y = kPad;
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int x = kPad;
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constexpr GrClipEdgeType kEdgeTypes[] = {
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GrClipEdgeType::kFillAA,
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GrClipEdgeType::kInverseFillAA,
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};
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SkRect testBounds = SkRect::MakeIWH(fTestWidth, fTestHeight);
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for (size_t et = 0; et < SK_ARRAY_COUNT(kEdgeTypes); ++et) {
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GrClipEdgeType edgeType = kEdgeTypes[et];
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canvas->save();
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canvas->translate(SkIntToScalar(x), SkIntToScalar(y));
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// Draw a background for the test case
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SkPaint paint;
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paint.setColor(SK_ColorWHITE);
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canvas->drawRect(testBounds, paint);
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SkRRect rrect = fRRect;
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rrect.offset(SkIntToScalar(x + kGap), SkIntToScalar(y + kGap));
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const auto& caps = *rContext->priv().caps()->shaderCaps();
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auto [success, fp] = GrRRectEffect::Make(/*inputFP=*/nullptr, edgeType, rrect,
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caps);
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SkASSERT(success);
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if (success) {
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SkASSERT(fp);
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GrPaint grPaint;
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grPaint.setColor4f({ 0, 0, 0, 1.f });
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grPaint.setXPFactory(GrPorterDuffXPFactory::Get(SkBlendMode::kSrc));
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grPaint.setCoverageFragmentProcessor(std::move(fp));
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SkRect bounds = testBounds;
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bounds.offset(SkIntToScalar(x), SkIntToScalar(y));
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sdc->addDrawOp(skgpu::v1::FillRectOp::MakeNonAARect(
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rContext, std::move(grPaint), SkMatrix::I(), bounds));
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}
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canvas->restore();
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x = x + fTestOffsetX;
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}
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return DrawResult::kOk;
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}
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private:
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// pad between test cases
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inline static constexpr int kPad = 7;
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// gap between rect for each case that is rendered and exterior of rrect
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inline static constexpr int kGap = 3;
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SkRRect fRRect;
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int fWidth;
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int fHeight;
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int fTestWidth;
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int fTestHeight;
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int fTestOffsetX;
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int fTestOffsetY;
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const char* fName;
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using INHERITED = GM;
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};
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///////////////////////////////////////////////////////////////////////////////
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// This value is motivated by bug chromium:477684. It has to be large to cause overflow in
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// the shader
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constexpr int kSize = 700;
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DEF_GM( return new BigRRectAAEffectGM (SkRRect::MakeRect(SkRect::MakeIWH(kSize, kSize)), "rect"); )
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DEF_GM( return new BigRRectAAEffectGM (SkRRect::MakeOval(SkRect::MakeIWH(kSize, kSize)), "circle"); )
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DEF_GM( return new BigRRectAAEffectGM (SkRRect::MakeOval(SkRect::MakeIWH(kSize - 1, kSize - 10)), "ellipse"); )
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// The next two have small linear segments between the corners
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DEF_GM( return new BigRRectAAEffectGM (SkRRect::MakeRectXY(SkRect::MakeIWH(kSize - 1, kSize - 10), kSize/2.f - 10.f, kSize/2.f - 10.f), "circular_corner"); )
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DEF_GM( return new BigRRectAAEffectGM (SkRRect::MakeRectXY(SkRect::MakeIWH(kSize - 1, kSize - 10), kSize/2.f - 10.f, kSize/2.f - 15.f), "elliptical_corner"); )
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} // namespace skiagm
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