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/*
* 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"
#include "GrTest.h"
#include "SkDevice.h"
#include "SkRRect.h"
#include "effects/GrRRectEffect.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 {
SkBaseDevice* device = canvas->getTopDevice();
GrContext* context = NULL;
GrRenderTarget* rt = device->accessRenderTarget();
if (NULL != rt) {
context = rt->getContext();
}
if (kEffect_Type == fType && NULL == context) {
return;
}
SkPaint paint;
if (kAA_Draw_Type == fType) {
paint.setAntiAlias(true);
}
static const SkRect kMaxTileBound = SkRect::MakeWH(SkIntToScalar(kTileX), SkIntToScalar(kTileY));
int curRRect = 0;
int numRRects = kNumRRects;
if (kEffect_Type == fType) {
numRRects *= GrRRectEffect::kEdgeTypeCnt;
}
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) {
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));
GrRRectEffect::EdgeType edgeType = (GrRRectEffect::EdgeType)
(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);
}
} 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); )
DEF_GM( return new RRectGM(RRectGM::kEffect_Type); )
}
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