skia2/gm/bigrrectaaeffect.cpp
robertphillips 175dd9b5e3 Clean up test drawContext usage
The general idea is to provide access to SkGpuDevice's drawContext rather than its GrRenderTarget. That is usually what the testing framework actually wants.

GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1930623003

Review-Url: https://codereview.chromium.org/1930623003
2016-04-28 14:32:04 -07:00

133 lines
4.8 KiB
C++

/*
* Copyright 2015 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 "GrContext.h"
#include "GrDrawContextPriv.h"
#include "GrPipelineBuilder.h"
#include "SkRRect.h"
#include "batches/GrDrawBatch.h"
#include "batches/GrRectBatchFactory.h"
#include "effects/GrRRectEffect.h"
namespace skiagm {
///////////////////////////////////////////////////////////////////////////////
class BigRRectAAEffectGM : public GM {
public:
BigRRectAAEffectGM(const SkRRect& rrect, const char* name)
: fRRect(rrect)
, fName(name) {
this->setBGColor(sk_tool_utils::color_to_565(SK_ColorBLUE));
// Each test case draws the rrect with gaps around it.
fTestWidth = SkScalarCeilToInt(rrect.width()) + 2 * kGap;
fTestHeight = SkScalarCeilToInt(rrect.height()) + 2 * kGap;
// Add a pad between test cases.
fTestOffsetX = fTestWidth + kPad;
fTestOffsetY = fTestHeight + kPad;
// We draw two tests in x (fill and inv-fill) and pad around
// all four sides of the image.
fWidth = 2 * fTestOffsetX + kPad;
fHeight = fTestOffsetY + kPad;
}
protected:
SkString onShortName() override {
SkString name;
name.printf("big_rrect_%s_aa_effect", fName);
return name;
}
SkISize onISize() override { return SkISize::Make(fWidth, fHeight); }
void onDraw(SkCanvas* canvas) override {
GrDrawContext* drawContext = canvas->internal_private_accessTopLayerDrawContext();
if (!drawContext) {
skiagm::GM::DrawGpuOnlyMessage(canvas);
return;
}
SkPaint paint;
int y = kPad;
int x = kPad;
static const GrPrimitiveEdgeType kEdgeTypes[] = {
kFillAA_GrProcessorEdgeType,
kInverseFillAA_GrProcessorEdgeType,
};
SkRect testBounds = SkRect::MakeIWH(fTestWidth, fTestHeight);
for (size_t et = 0; et < SK_ARRAY_COUNT(kEdgeTypes); ++et) {
GrPrimitiveEdgeType edgeType = kEdgeTypes[et];
canvas->save();
canvas->translate(SkIntToScalar(x), SkIntToScalar(y));
// Draw a background for the test case
SkPaint paint;
paint.setColor(SK_ColorWHITE);
canvas->drawRect(testBounds, paint);
GrPipelineBuilder pipelineBuilder;
pipelineBuilder.setXPFactory(
GrPorterDuffXPFactory::Create(SkXfermode::kSrc_Mode))->unref();
SkRRect rrect = fRRect;
rrect.offset(SkIntToScalar(x + kGap), SkIntToScalar(y + kGap));
SkAutoTUnref<GrFragmentProcessor> fp(GrRRectEffect::Create(edgeType, rrect));
SkASSERT(fp);
if (fp) {
pipelineBuilder.addCoverageFragmentProcessor(fp);
pipelineBuilder.setRenderTarget(drawContext->accessRenderTarget());
SkRect bounds = testBounds;
bounds.offset(SkIntToScalar(x), SkIntToScalar(y));
SkAutoTUnref<GrDrawBatch> batch(
GrRectBatchFactory::CreateNonAAFill(0xff000000, SkMatrix::I(), bounds,
nullptr, nullptr));
drawContext->drawContextPriv().testingOnly_drawBatch(pipelineBuilder, batch);
}
canvas->restore();
x = x + fTestOffsetX;
}
}
private:
// pad between test cases
static const int kPad = 7;
// gap between rect for each case that is rendered and exterior of rrect
static const int kGap = 3;
SkRRect fRRect;
int fWidth;
int fHeight;
int fTestWidth;
int fTestHeight;
int fTestOffsetX;
int fTestOffsetY;
const char* fName;
typedef GM INHERITED;
};
///////////////////////////////////////////////////////////////////////////////
// This value is motivated by bug chromium:477684. It has to be large to cause overflow in
// the shader
static const int kSize = 700;
DEF_GM( return new BigRRectAAEffectGM (SkRRect::MakeRect(SkRect::MakeIWH(kSize, kSize)), "rect"); )
DEF_GM( return new BigRRectAAEffectGM (SkRRect::MakeOval(SkRect::MakeIWH(kSize, kSize)), "circle"); )
DEF_GM( return new BigRRectAAEffectGM (SkRRect::MakeOval(SkRect::MakeIWH(kSize - 1, kSize - 10)), "ellipse"); )
// The next two have small linear segments between the corners
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"); )
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"); )
}
#endif