| /* |
| * 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.h" |
| #if SK_SUPPORT_GPU |
| #include "GrTest.h" |
| #include "effects/GrRRectEffect.h" |
| #endif |
| #include "SkDevice.h" |
| #include "SkRRect.h" |
| |
| 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) { |
| this->setBGColor(0xFFDDDDDD); |
| this->setUpRRects(); |
| } |
| |
| protected: |
| SkString onShortName() SK_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; |
| } |
| |
| virtual SkISize onISize() SK_OVERRIDE { return make_isize(kImageWidth, kImageHeight); } |
| |
| virtual uint32_t onGetFlags() const SK_OVERRIDE { |
| if (kEffect_Type == fType) { |
| return kGPUOnly_Flag; |
| } else { |
| return 0; |
| } |
| } |
| |
| virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE { |
| int numRRects = kNumRRects; |
| #if SK_SUPPORT_GPU |
| SkBaseDevice* device = canvas->getTopDevice(); |
| GrContext* context = NULL; |
| GrRenderTarget* rt = device->accessRenderTarget(); |
| if (NULL != rt) { |
| context = rt->getContext(); |
| } |
| if (kEffect_Type == fType && NULL == context) { |
| return; |
| } |
| if (kEffect_Type == fType) { |
| numRRects *= kGrEffectEdgeTypeCnt; |
| } |
| #endif |
| |
| SkPaint paint; |
| if (kAA_Draw_Type == fType) { |
| paint.setAntiAlias(true); |
| } |
| |
| static const SkRect kMaxTileBound = SkRect::MakeWH(SkIntToScalar(kTileX), SkIntToScalar(kTileY)); |
| |
| int curRRect = 0; |
| for (int y = 1; y < kImageHeight; y += kTileY) { |
| for (int x = 1; x < kImageWidth; x += kTileX) { |
| if (curRRect >= numRRects) { |
| break; |
| } |
| int rrectIdx = curRRect % kNumRRects; |
| SkASSERT(kMaxTileBound.contains(fRRects[rrectIdx].getBounds())); |
| |
| canvas->save(); |
| canvas->translate(SkIntToScalar(x), SkIntToScalar(y)); |
| if (kEffect_Type == fType) { |
| #if SK_SUPPORT_GPU |
| GrTestTarget tt; |
| context->getTestTarget(&tt); |
| if (NULL == tt.target()) { |
| SkDEBUGFAIL("Couldn't get Gr test target."); |
| return; |
| } |
| GrDrawState* drawState = tt.target()->drawState(); |
| |
| SkRRect rrect = fRRects[rrectIdx]; |
| rrect.offset(SkIntToScalar(x), SkIntToScalar(y)); |
| GrEffectEdgeType edgeType = (GrEffectEdgeType) (curRRect / kNumRRects); |
| SkAutoTUnref<GrEffectRef> effect(GrRRectEffect::Create(edgeType, rrect)); |
| if (effect) { |
| drawState->addCoverageEffect(effect); |
| drawState->setIdentityViewMatrix(); |
| drawState->setRenderTarget(rt); |
| drawState->setColor(0xff000000); |
| |
| SkRect bounds = rrect.getBounds(); |
| bounds.outset(2.f, 2.f); |
| |
| tt.target()->drawSimpleRect(bounds); |
| } |
| #endif |
| } else if (kBW_Clip_Type == fType || kAA_Clip_Type == fType) { |
| bool aaClip = (kAA_Clip_Type == fType); |
| canvas->clipRRect(fRRects[rrectIdx], SkRegion::kReplace_Op, aaClip); |
| canvas->drawRect(kMaxTileBound, paint); |
| } else { |
| canvas->drawRRect(fRRects[rrectIdx], paint); |
| } |
| ++curRRect; |
| canvas->restore(); |
| } |
| } |
| } |
| |
| 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 const int kImageWidth = 640; |
| static const int kImageHeight = 480; |
| |
| static const int kTileX = 80; |
| static const int kTileY = 40; |
| |
| static const int kNumSimpleCases = 7; |
| static const int kNumComplexCases = 23; |
| static const SkVector gRadii[kNumComplexCases][4]; |
| |
| static const 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 } }, |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| 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); ) |
| #if SK_SUPPORT_GPU |
| DEF_GM( return new RRectGM(RRectGM::kEffect_Type); ) |
| #endif |
| |
| } |