280 lines
10 KiB
C++
280 lines
10 KiB
C++
/*
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* Copyright 2012 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/SkMatrix.h"
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#include "include/core/SkPaint.h"
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#include "include/core/SkPoint.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/effects/SkGradientShader.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 <memory>
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#include <utility>
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namespace skiagm {
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///////////////////////////////////////////////////////////////////////////////
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class RRectGM : public GM {
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public:
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enum Type {
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kBW_Draw_Type,
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kAA_Draw_Type,
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kBW_Clip_Type,
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kAA_Clip_Type,
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kEffect_Type,
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};
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RRectGM(Type type) : fType(type) { }
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protected:
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void onOnceBeforeDraw() override {
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this->setBGColor(0xFFDDDDDD);
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this->setUpRRects();
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}
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SkString onShortName() override {
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SkString name("rrect");
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switch (fType) {
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case kBW_Draw_Type:
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name.append("_draw_bw");
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break;
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case kAA_Draw_Type:
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name.append("_draw_aa");
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break;
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case kBW_Clip_Type:
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name.append("_clip_bw");
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break;
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case kAA_Clip_Type:
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name.append("_clip_aa");
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break;
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case kEffect_Type:
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name.append("_effect");
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break;
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}
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return name;
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}
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SkISize onISize() override { return SkISize::Make(kImageWidth, kImageHeight); }
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DrawResult onDraw(SkCanvas* canvas, SkString* errorMsg) override {
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auto sdc = SkCanvasPriv::TopDeviceSurfaceDrawContext(canvas);
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auto rContext = canvas->recordingContext();
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if (kEffect_Type == fType && (!sdc || !rContext)) {
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*errorMsg = kErrorMsg_DrawSkippedGpuOnly;
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return DrawResult::kSkip;
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}
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SkPaint paint;
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if (kAA_Draw_Type == fType) {
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paint.setAntiAlias(true);
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}
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if (fType == kBW_Clip_Type || fType == kAA_Clip_Type) {
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// Add a gradient to the paint to ensure local coords are respected.
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SkPoint pts[3] = {{0, 0}, {1.5f, 1}};
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SkColor colors[3] = {SK_ColorBLACK, SK_ColorYELLOW};
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paint.setShader(SkGradientShader::MakeLinear(pts, colors, nullptr, 2,
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SkTileMode::kClamp));
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}
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#ifdef SK_DEBUG
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const SkRect kMaxImageBound = SkRect::MakeWH(SkIntToScalar(kImageWidth),
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SkIntToScalar(kImageHeight));
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#endif
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int lastEdgeType = (kEffect_Type == fType) ? (int) GrClipEdgeType::kLast: 0;
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int y = 1;
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for (int et = 0; et <= lastEdgeType; ++et) {
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int x = 1;
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for (int curRRect = 0; curRRect < kNumRRects; ++curRRect) {
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bool drew = true;
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#ifdef SK_DEBUG
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SkRect imageSpaceBounds = fRRects[curRRect].getBounds();
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imageSpaceBounds.offset(SkIntToScalar(x), SkIntToScalar(y));
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SkASSERT(kMaxImageBound.contains(imageSpaceBounds));
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#endif
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canvas->save();
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canvas->translate(SkIntToScalar(x), SkIntToScalar(y));
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if (kEffect_Type == fType) {
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SkRRect rrect = fRRects[curRRect];
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rrect.offset(SkIntToScalar(x), SkIntToScalar(y));
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GrClipEdgeType edgeType = (GrClipEdgeType) et;
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const auto& caps = *rContext->priv().caps()->shaderCaps();
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auto [success, fp] = GrRRectEffect::Make(/*inputFP=*/nullptr,
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edgeType, rrect, caps);
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if (success) {
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GrPaint grPaint;
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grPaint.setXPFactory(GrPorterDuffXPFactory::Get(SkBlendMode::kSrc));
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grPaint.setCoverageFragmentProcessor(std::move(fp));
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grPaint.setColor4f({ 0, 0, 0, 1.f });
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SkRect bounds = rrect.getBounds();
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bounds.outset(2.f, 2.f);
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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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} else {
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drew = false;
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}
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} else if (fType == kBW_Clip_Type || fType == kAA_Clip_Type) {
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bool aaClip = (kAA_Clip_Type == fType);
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canvas->clipRRect(fRRects[curRRect], aaClip);
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canvas->setMatrix(SkMatrix::Scale(kImageWidth, kImageHeight));
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canvas->drawRect(SkRect::MakeWH(1, 1), paint);
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} else {
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canvas->drawRRect(fRRects[curRRect], paint);
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}
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canvas->restore();
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if (drew) {
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x = x + kTileX;
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if (x > kImageWidth) {
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x = 1;
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y += kTileY;
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}
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}
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}
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if (x != 1) {
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y += kTileY;
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}
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}
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return DrawResult::kOk;
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}
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void setUpRRects() {
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// each RRect must fit in a 0x0 -> (kTileX-2)x(kTileY-2) block. These will be tiled across
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// the screen in kTileX x kTileY tiles. The extra empty pixels on each side are for AA.
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// simple cases
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fRRects[0].setRect(SkRect::MakeWH(kTileX-2, kTileY-2));
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fRRects[1].setOval(SkRect::MakeWH(kTileX-2, kTileY-2));
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fRRects[2].setRectXY(SkRect::MakeWH(kTileX-2, kTileY-2), 10, 10);
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fRRects[3].setRectXY(SkRect::MakeWH(kTileX-2, kTileY-2), 10, 5);
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// small circular corners are an interesting test case for gpu clipping
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fRRects[4].setRectXY(SkRect::MakeWH(kTileX-2, kTileY-2), 1, 1);
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fRRects[5].setRectXY(SkRect::MakeWH(kTileX-2, kTileY-2), 0.5f, 0.5f);
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fRRects[6].setRectXY(SkRect::MakeWH(kTileX-2, kTileY-2), 0.2f, 0.2f);
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// The first complex case needs special handling since it is a square
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fRRects[kNumSimpleCases].setRectRadii(SkRect::MakeWH(kTileY-2, kTileY-2), gRadii[0]);
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for (size_t i = 1; i < SK_ARRAY_COUNT(gRadii); ++i) {
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fRRects[kNumSimpleCases+i].setRectRadii(SkRect::MakeWH(kTileX-2, kTileY-2), gRadii[i]);
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}
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}
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private:
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Type fType;
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inline static constexpr int kImageWidth = 640;
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inline static constexpr int kImageHeight = 480;
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inline static constexpr int kTileX = 80;
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inline static constexpr int kTileY = 40;
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inline static constexpr int kNumSimpleCases = 7;
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inline static constexpr int kNumComplexCases = 35;
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static const SkVector gRadii[kNumComplexCases][4];
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inline static constexpr int kNumRRects = kNumSimpleCases + kNumComplexCases;
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SkRRect fRRects[kNumRRects];
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using INHERITED = GM;
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};
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// Radii for the various test cases. Order is UL, UR, LR, LL
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const SkVector RRectGM::gRadii[kNumComplexCases][4] = {
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// a circle
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{ { kTileY, kTileY }, { kTileY, kTileY }, { kTileY, kTileY }, { kTileY, kTileY } },
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// odd ball cases
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{ { 8, 8 }, { 32, 32 }, { 8, 8 }, { 32, 32 } },
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{ { 16, 8 }, { 8, 16 }, { 16, 8 }, { 8, 16 } },
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{ { 0, 0 }, { 16, 16 }, { 8, 8 }, { 32, 32 } },
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// UL
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{ { 30, 30 }, { 0, 0 }, { 0, 0 }, { 0, 0 } },
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{ { 30, 15 }, { 0, 0 }, { 0, 0 }, { 0, 0 } },
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{ { 15, 30 }, { 0, 0 }, { 0, 0 }, { 0, 0 } },
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// UR
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{ { 0, 0 }, { 30, 30 }, { 0, 0 }, { 0, 0 } },
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{ { 0, 0 }, { 30, 15 }, { 0, 0 }, { 0, 0 } },
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{ { 0, 0 }, { 15, 30 }, { 0, 0 }, { 0, 0 } },
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// LR
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{ { 0, 0 }, { 0, 0 }, { 30, 30 }, { 0, 0 } },
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{ { 0, 0 }, { 0, 0 }, { 30, 15 }, { 0, 0 } },
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{ { 0, 0 }, { 0, 0 }, { 15, 30 }, { 0, 0 } },
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// LL
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{ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 30, 30 } },
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{ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 30, 15 } },
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{ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 15, 30 } },
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// over-sized radii
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{ { 0, 0 }, { 100, 400 }, { 0, 0 }, { 0, 0 } },
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{ { 0, 0 }, { 400, 400 }, { 0, 0 }, { 0, 0 } },
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{ { 400, 400 }, { 400, 400 }, { 400, 400 }, { 400, 400 } },
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// circular corner tabs
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{ { 0, 0 }, { 20, 20 }, { 20, 20 }, { 0, 0 } },
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{ { 20, 20 }, { 20, 20 }, { 0, 0 }, { 0, 0 } },
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{ { 0, 0 }, { 0, 0 }, { 20, 20 }, { 20, 20 } },
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{ { 20, 20 }, { 0, 0 }, { 0, 0 }, { 20, 20 } },
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// small radius circular corner tabs
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{ { 0, 0 }, { 0.2f, 0.2f }, { 0.2f, 0.2f }, { 0, 0 } },
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{ { 0.3f, 0.3f }, { 0.3f, .3f }, { 0, 0 }, { 0, 0 } },
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// single circular corner cases
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{ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 15, 15 } },
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{ { 0, 0 }, { 0, 0 }, { 15, 15 }, { 0, 0 } },
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{ { 0, 0 }, { 15, 15 }, { 0, 0 }, { 0, 0 } },
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{ { 15, 15 }, { 0, 0 }, { 0, 0 }, { 0, 0 } },
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// nine patch elliptical
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{ { 5, 7 }, { 8, 7 }, { 8, 12 }, { 5, 12 } },
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{ { 0, 7 }, { 8, 7 }, { 8, 12 }, { 0, 12 } },
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// nine patch elliptical, small radii
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{ { 0.4f, 7 }, { 8, 7 }, { 8, 12 }, { 0.4f, 12 } },
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{ { 0.4f, 0.4f }, { 8, 0.4f }, { 8, 12 }, { 0.4f, 12 } },
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{ { 20, 0.4f }, { 18, 0.4f }, { 18, 0.4f }, { 20, 0.4f } },
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{ { 0.3f, 0.4f }, { 0.3f, 0.4f }, { 0.3f, 0.4f }, { 0.3f, 0.4f } },
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};
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///////////////////////////////////////////////////////////////////////////////
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DEF_GM( return new RRectGM(RRectGM::kAA_Draw_Type); )
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DEF_GM( return new RRectGM(RRectGM::kBW_Draw_Type); )
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DEF_GM( return new RRectGM(RRectGM::kAA_Clip_Type); )
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DEF_GM( return new RRectGM(RRectGM::kBW_Clip_Type); )
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DEF_GM( return new RRectGM(RRectGM::kEffect_Type); )
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} // namespace skiagm
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