| /* |
| * Copyright 2012 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "gm/gm.h" |
| #include "include/core/SkBlendMode.h" |
| #include "include/core/SkCanvas.h" |
| #include "include/core/SkMatrix.h" |
| #include "include/core/SkPaint.h" |
| #include "include/core/SkPoint.h" |
| #include "include/core/SkRRect.h" |
| #include "include/core/SkRect.h" |
| #include "include/core/SkScalar.h" |
| #include "include/core/SkSize.h" |
| #include "include/core/SkString.h" |
| #include "include/core/SkTypes.h" |
| #include "include/gpu/GrContext.h" |
| #include "include/private/GrSharedEnums.h" |
| #include "include/private/GrTypesPriv.h" |
| #include "src/gpu/GrCaps.h" |
| #include "src/gpu/GrFragmentProcessor.h" |
| #include "src/gpu/GrPaint.h" |
| #include "src/gpu/GrRenderTargetContext.h" |
| #include "src/gpu/GrRenderTargetContextPriv.h" |
| #include "src/gpu/effects/GrPorterDuffXferProcessor.h" |
| #include "src/gpu/effects/GrRRectEffect.h" |
| #include "src/gpu/ops/GrDrawOp.h" |
| #include "src/gpu/ops/GrFillRectOp.h" |
| |
| #include <memory> |
| #include <utility> |
| |
| namespace skiagm { |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| class RRectGM : public GM { |
| public: |
| enum Type { |
| kBW_Draw_Type, |
| kAA_Draw_Type, |
| kBW_Clip_Type, |
| kAA_Clip_Type, |
| kEffect_Type, |
| }; |
| RRectGM(Type type) : fType(type) { } |
| |
| protected: |
| |
| void onOnceBeforeDraw() override { |
| this->setBGColor(0xFFDDDDDD); |
| this->setUpRRects(); |
| } |
| |
| SkString onShortName() override { |
| SkString name("rrect"); |
| switch (fType) { |
| case kBW_Draw_Type: |
| name.append("_draw_bw"); |
| break; |
| case kAA_Draw_Type: |
| name.append("_draw_aa"); |
| break; |
| case kBW_Clip_Type: |
| name.append("_clip_bw"); |
| break; |
| case kAA_Clip_Type: |
| name.append("_clip_aa"); |
| break; |
| case kEffect_Type: |
| name.append("_effect"); |
| break; |
| } |
| return name; |
| } |
| |
| SkISize onISize() override { return SkISize::Make(kImageWidth, kImageHeight); } |
| |
| DrawResult onDraw(SkCanvas* canvas, SkString* errorMsg) override { |
| GrRenderTargetContext* renderTargetContext = |
| canvas->internal_private_accessTopLayerRenderTargetContext(); |
| GrContext* context = canvas->getGrContext(); |
| if (kEffect_Type == fType && (!renderTargetContext || !context)) { |
| *errorMsg = kErrorMsg_DrawSkippedGpuOnly; |
| return DrawResult::kSkip; |
| } |
| |
| SkPaint paint; |
| if (kAA_Draw_Type == fType) { |
| paint.setAntiAlias(true); |
| } |
| |
| const SkRect kMaxTileBound = SkRect::MakeWH(SkIntToScalar(kTileX), |
| SkIntToScalar(kTileY)); |
| #ifdef SK_DEBUG |
| const SkRect kMaxImageBound = SkRect::MakeWH(SkIntToScalar(kImageWidth), |
| SkIntToScalar(kImageHeight)); |
| #endif |
| |
| int lastEdgeType = (kEffect_Type == fType) ? (int) GrClipEdgeType::kLast: 0; |
| |
| int y = 1; |
| for (int et = 0; et <= lastEdgeType; ++et) { |
| int x = 1; |
| for (int curRRect = 0; curRRect < kNumRRects; ++curRRect) { |
| bool drew = true; |
| #ifdef SK_DEBUG |
| SkASSERT(kMaxTileBound.contains(fRRects[curRRect].getBounds())); |
| SkRect imageSpaceBounds = fRRects[curRRect].getBounds(); |
| imageSpaceBounds.offset(SkIntToScalar(x), SkIntToScalar(y)); |
| SkASSERT(kMaxImageBound.contains(imageSpaceBounds)); |
| #endif |
| canvas->save(); |
| canvas->translate(SkIntToScalar(x), SkIntToScalar(y)); |
| if (kEffect_Type == fType) { |
| SkRRect rrect = fRRects[curRRect]; |
| rrect.offset(SkIntToScalar(x), SkIntToScalar(y)); |
| GrClipEdgeType edgeType = (GrClipEdgeType) et; |
| const auto& caps = *renderTargetContext->caps()->shaderCaps(); |
| auto fp = GrRRectEffect::Make(edgeType, rrect, caps); |
| if (fp) { |
| GrPaint grPaint; |
| grPaint.setXPFactory(GrPorterDuffXPFactory::Get(SkBlendMode::kSrc)); |
| grPaint.addCoverageFragmentProcessor(std::move(fp)); |
| grPaint.setColor4f({ 0, 0, 0, 1.f }); |
| |
| SkRect bounds = rrect.getBounds(); |
| bounds.outset(2.f, 2.f); |
| |
| renderTargetContext->priv().testingOnly_addDrawOp( |
| GrFillRectOp::MakeNonAARect(context, std::move(grPaint), |
| SkMatrix::I(), bounds)); |
| } else { |
| drew = false; |
| } |
| } else if (kBW_Clip_Type == fType || kAA_Clip_Type == fType) { |
| bool aaClip = (kAA_Clip_Type == fType); |
| canvas->clipRRect(fRRects[curRRect], aaClip); |
| canvas->drawRect(kMaxTileBound, paint); |
| } else { |
| canvas->drawRRect(fRRects[curRRect], paint); |
| } |
| canvas->restore(); |
| if (drew) { |
| x = x + kTileX; |
| if (x > kImageWidth) { |
| x = 1; |
| y += kTileY; |
| } |
| } |
| } |
| if (x != 1) { |
| y += kTileY; |
| } |
| } |
| return DrawResult::kOk; |
| } |
| |
| void setUpRRects() { |
| // each RRect must fit in a 0x0 -> (kTileX-2)x(kTileY-2) block. These will be tiled across |
| // the screen in kTileX x kTileY tiles. The extra empty pixels on each side are for AA. |
| |
| // simple cases |
| fRRects[0].setRect(SkRect::MakeWH(kTileX-2, kTileY-2)); |
| fRRects[1].setOval(SkRect::MakeWH(kTileX-2, kTileY-2)); |
| fRRects[2].setRectXY(SkRect::MakeWH(kTileX-2, kTileY-2), 10, 10); |
| fRRects[3].setRectXY(SkRect::MakeWH(kTileX-2, kTileY-2), 10, 5); |
| // small circular corners are an interesting test case for gpu clipping |
| fRRects[4].setRectXY(SkRect::MakeWH(kTileX-2, kTileY-2), 1, 1); |
| fRRects[5].setRectXY(SkRect::MakeWH(kTileX-2, kTileY-2), 0.5f, 0.5f); |
| fRRects[6].setRectXY(SkRect::MakeWH(kTileX-2, kTileY-2), 0.2f, 0.2f); |
| |
| // The first complex case needs special handling since it is a square |
| fRRects[kNumSimpleCases].setRectRadii(SkRect::MakeWH(kTileY-2, kTileY-2), gRadii[0]); |
| for (size_t i = 1; i < SK_ARRAY_COUNT(gRadii); ++i) { |
| fRRects[kNumSimpleCases+i].setRectRadii(SkRect::MakeWH(kTileX-2, kTileY-2), gRadii[i]); |
| } |
| } |
| |
| private: |
| Type fType; |
| |
| static constexpr int kImageWidth = 640; |
| static constexpr int kImageHeight = 480; |
| |
| static constexpr int kTileX = 80; |
| static constexpr int kTileY = 40; |
| |
| static constexpr int kNumSimpleCases = 7; |
| static constexpr int kNumComplexCases = 35; |
| static const SkVector gRadii[kNumComplexCases][4]; |
| |
| static constexpr int kNumRRects = kNumSimpleCases + kNumComplexCases; |
| SkRRect fRRects[kNumRRects]; |
| |
| typedef GM INHERITED; |
| }; |
| |
| // Radii for the various test cases. Order is UL, UR, LR, LL |
| const SkVector RRectGM::gRadii[kNumComplexCases][4] = { |
| // a circle |
| { { kTileY, kTileY }, { kTileY, kTileY }, { kTileY, kTileY }, { kTileY, kTileY } }, |
| |
| // odd ball cases |
| { { 8, 8 }, { 32, 32 }, { 8, 8 }, { 32, 32 } }, |
| { { 16, 8 }, { 8, 16 }, { 16, 8 }, { 8, 16 } }, |
| { { 0, 0 }, { 16, 16 }, { 8, 8 }, { 32, 32 } }, |
| |
| // UL |
| { { 30, 30 }, { 0, 0 }, { 0, 0 }, { 0, 0 } }, |
| { { 30, 15 }, { 0, 0 }, { 0, 0 }, { 0, 0 } }, |
| { { 15, 30 }, { 0, 0 }, { 0, 0 }, { 0, 0 } }, |
| |
| // UR |
| { { 0, 0 }, { 30, 30 }, { 0, 0 }, { 0, 0 } }, |
| { { 0, 0 }, { 30, 15 }, { 0, 0 }, { 0, 0 } }, |
| { { 0, 0 }, { 15, 30 }, { 0, 0 }, { 0, 0 } }, |
| |
| // LR |
| { { 0, 0 }, { 0, 0 }, { 30, 30 }, { 0, 0 } }, |
| { { 0, 0 }, { 0, 0 }, { 30, 15 }, { 0, 0 } }, |
| { { 0, 0 }, { 0, 0 }, { 15, 30 }, { 0, 0 } }, |
| |
| // LL |
| { { 0, 0 }, { 0, 0 }, { 0, 0 }, { 30, 30 } }, |
| { { 0, 0 }, { 0, 0 }, { 0, 0 }, { 30, 15 } }, |
| { { 0, 0 }, { 0, 0 }, { 0, 0 }, { 15, 30 } }, |
| |
| // over-sized radii |
| { { 0, 0 }, { 100, 400 }, { 0, 0 }, { 0, 0 } }, |
| { { 0, 0 }, { 400, 400 }, { 0, 0 }, { 0, 0 } }, |
| { { 400, 400 }, { 400, 400 }, { 400, 400 }, { 400, 400 } }, |
| |
| // circular corner tabs |
| { { 0, 0 }, { 20, 20 }, { 20, 20 }, { 0, 0 } }, |
| { { 20, 20 }, { 20, 20 }, { 0, 0 }, { 0, 0 } }, |
| { { 0, 0 }, { 0, 0 }, { 20, 20 }, { 20, 20 } }, |
| { { 20, 20 }, { 0, 0 }, { 0, 0 }, { 20, 20 } }, |
| |
| // small radius circular corner tabs |
| { { 0, 0 }, { 0.2f, 0.2f }, { 0.2f, 0.2f }, { 0, 0 } }, |
| { { 0.3f, 0.3f }, { 0.3f, .3f }, { 0, 0 }, { 0, 0 } }, |
| |
| // single circular corner cases |
| { { 0, 0 }, { 0, 0 }, { 0, 0 }, { 15, 15 } }, |
| { { 0, 0 }, { 0, 0 }, { 15, 15 }, { 0, 0 } }, |
| { { 0, 0 }, { 15, 15 }, { 0, 0 }, { 0, 0 } }, |
| { { 15, 15 }, { 0, 0 }, { 0, 0 }, { 0, 0 } }, |
| |
| // nine patch elliptical |
| { { 5, 7 }, { 8, 7 }, { 8, 12 }, { 5, 12 } }, |
| { { 0, 7 }, { 8, 7 }, { 8, 12 }, { 0, 12 } }, |
| |
| // nine patch elliptical, small radii |
| { { 0.4f, 7 }, { 8, 7 }, { 8, 12 }, { 0.4f, 12 } }, |
| { { 0.4f, 0.4f }, { 8, 0.4f }, { 8, 12 }, { 0.4f, 12 } }, |
| { { 20, 0.4f }, { 18, 0.4f }, { 18, 0.4f }, { 20, 0.4f } }, |
| { { 0.3f, 0.4f }, { 0.3f, 0.4f }, { 0.3f, 0.4f }, { 0.3f, 0.4f } }, |
| |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| DEF_GM( return new RRectGM(RRectGM::kAA_Draw_Type); ) |
| DEF_GM( return new RRectGM(RRectGM::kBW_Draw_Type); ) |
| DEF_GM( return new RRectGM(RRectGM::kAA_Clip_Type); ) |
| DEF_GM( return new RRectGM(RRectGM::kBW_Clip_Type); ) |
| DEF_GM( return new RRectGM(RRectGM::kEffect_Type); ) |
| |
| } |
