skia2/gm/shadows.cpp
Ben Wagner 7fde8e1728 IWYU for gms.
This almost gets gms to be iwyu clean. The last bit is around gm.cpp
and the tracing framework and its use of atomic. Will also need a way
of keeping things from regressing, which is difficult due to needing to
do this outside-in.

Change-Id: I1393531e99da8b0f1a29f55c53c86d53f459af7d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/211593
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
2019-05-02 17:48:53 +00:00

141 lines
4.9 KiB
C++

/*
* Copyright 2011 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/SkBitmap.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkColor.h"
#include "include/core/SkDrawLooper.h"
#include "include/core/SkImageInfo.h"
#include "include/core/SkPaint.h"
#include "include/core/SkPath.h"
#include "include/core/SkRect.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkScalar.h"
#include "include/core/SkShader.h"
#include "include/core/SkSize.h"
#include "include/core/SkString.h"
#include "include/core/SkTileMode.h"
#include "include/core/SkTypes.h"
#include "include/effects/SkBlurDrawLooper.h"
#include "src/core/SkBlurMask.h"
namespace skiagm {
///////////////////////////////////////////////////////////////////////////////
static void setup(SkPaint* paint, SkColor c, SkScalar strokeWidth) {
paint->setColor(c);
if (strokeWidth < 0) {
paint->setStyle(SkPaint::kFill_Style);
} else {
paint->setStyle(SkPaint::kStroke_Style);
paint->setStrokeWidth(strokeWidth);
}
}
class ShadowsGM : public GM {
public:
SkPath fCirclePath;
SkRect fRect;
SkBitmap fBitmap;
protected:
void onOnceBeforeDraw() override {
this->setBGColor(0xFFDDDDDD);
fCirclePath.addCircle(SkIntToScalar(20), SkIntToScalar(20), SkIntToScalar(10) );
fRect.set(SkIntToScalar(10), SkIntToScalar(10),
SkIntToScalar(30), SkIntToScalar(30));
fBitmap.allocPixels(SkImageInfo::Make(20, 20, SkColorType::kAlpha_8_SkColorType,
kPremul_SkAlphaType));
SkCanvas canvas(fBitmap);
canvas.clear(0x0);
SkPaint p;
canvas.drawRect(SkRect::MakeXYWH(10, 0, 10, 10), p);
canvas.drawRect(SkRect::MakeXYWH(0, 10, 10, 10), p);
}
SkString onShortName() override {
return SkString("shadows");
}
SkISize onISize() override {
return SkISize::Make(200, 200);
}
void onDraw(SkCanvas* canvas) override {
sk_sp<SkDrawLooper> shadowLoopers[] = {
SkBlurDrawLooper::Make(SK_ColorBLUE,
SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(10)),
SkIntToScalar(5), SkIntToScalar(10)),
SkBlurDrawLooper::Make(SK_ColorBLUE,
SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(10)),
SkIntToScalar(5), SkIntToScalar(10)),
SkBlurDrawLooper::Make(SK_ColorBLACK,
SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(5)),
SkIntToScalar(5),
SkIntToScalar(10)),
SkBlurDrawLooper::Make(0x7FFF0000,
SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(5)),
SkIntToScalar(-5), SkIntToScalar(-10)),
SkBlurDrawLooper::Make(SK_ColorBLACK, SkIntToScalar(0),
SkIntToScalar(5), SkIntToScalar(5)),
};
constexpr struct {
SkColor fColor;
SkScalar fStrokeWidth;
} gRec[] = {
{ SK_ColorRED, -SK_Scalar1 },
{ SK_ColorGREEN, SkIntToScalar(4) },
{ SK_ColorBLUE, SkIntToScalar(0)},
};
SkPaint paint;
paint.setAntiAlias(true);
for (size_t i = 0; i < SK_ARRAY_COUNT(shadowLoopers); ++i) {
SkAutoCanvasRestore acr(canvas, true);
paint.setLooper(shadowLoopers[i]);
canvas->translate(SkIntToScalar((unsigned int)i*40), SkIntToScalar(0));
setup(&paint, gRec[0].fColor, gRec[0].fStrokeWidth);
canvas->drawRect(fRect, paint);
canvas->translate(SkIntToScalar(0), SkIntToScalar(40));
setup(&paint, gRec[1].fColor, gRec[1].fStrokeWidth);
canvas->drawPath(fCirclePath, paint);
canvas->translate(SkIntToScalar(0), SkIntToScalar(40));
setup(&paint, gRec[2].fColor, gRec[2].fStrokeWidth);
canvas->drawPath(fCirclePath, paint);
// see bug.skia.org/562 (reference, draws correct)
canvas->translate(0, 40);
paint.setColor(SK_ColorBLACK);
canvas->drawBitmap(fBitmap, 10, 10, &paint);
canvas->translate(0, 40);
paint.setShader(fBitmap.makeShader(SkTileMode::kRepeat, SkTileMode::kRepeat));
// see bug.skia.org/562 (shows bug as reported)
paint.setStyle(SkPaint::kFill_Style);
canvas->drawRect(SkRect::MakeXYWH(10, 10, 20, 20), paint);
paint.setShader(nullptr);
}
}
private:
typedef GM INHERITED;
};
///////////////////////////////////////////////////////////////////////////////
DEF_GM( return new ShadowsGM; )
}