afb188de27
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1658623002 TBR=bsalomon@google.com Committed: https://skia.googlesource.com/skia/+/15691a055db9b68c9b48f589e48d8a85888cf83f Review URL: https://codereview.chromium.org/1658623002
100 lines
2.9 KiB
C++
100 lines
2.9 KiB
C++
/*
|
|
* Copyright 2016 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 "Resources.h"
|
|
|
|
#include "SkImageDecoder.h"
|
|
#include "SkAvoidXfermode.h"
|
|
#include "SkStream.h"
|
|
|
|
class AvoidXfermodeGM : public skiagm::GM {
|
|
public:
|
|
AvoidXfermodeGM() { }
|
|
|
|
protected:
|
|
SkString onShortName() override {
|
|
return SkString("avoidxfermode");
|
|
}
|
|
|
|
SkISize onISize() override { return SkISize::Make(128, 128); }
|
|
|
|
void onOnceBeforeDraw() override {
|
|
SkImageDecoder* codec = nullptr;
|
|
SkString resourcePath = GetResourcePath("color_wheel.png");
|
|
SkFILEStream stream(resourcePath.c_str());
|
|
if (stream.isValid()) {
|
|
codec = SkImageDecoder::Factory(&stream);
|
|
}
|
|
if (codec) {
|
|
stream.rewind();
|
|
codec->decode(&stream, &fBM, kN32_SkColorType, SkImageDecoder::kDecodePixels_Mode);
|
|
delete codec;
|
|
} else {
|
|
fBM.allocN32Pixels(1, 1);
|
|
fBM.eraseARGB(255, 255, 0 , 0); // red == bad
|
|
}
|
|
}
|
|
|
|
void onDraw(SkCanvas* canvas) override {
|
|
canvas->drawBitmap(fBM, 0, 0);
|
|
|
|
SkRect r = SkRect::MakeIWH(64, 64);
|
|
|
|
// UL corner: replace white with black with a tight tolerance
|
|
SkPaint p1;
|
|
p1.setColor(SK_ColorBLACK);
|
|
p1.setXfermode(SkAvoidXfermode::Create(SK_ColorWHITE,
|
|
5,
|
|
SkAvoidXfermode::kTargetColor_Mode))->unref();
|
|
|
|
canvas->drawRect(r, p1);
|
|
|
|
r.offsetTo(64, 0.0f);
|
|
|
|
// UR corner: draw black everywhere except white with a tight tolerance
|
|
SkPaint p2;
|
|
p2.setColor(SK_ColorBLACK);
|
|
p2.setXfermode(SkAvoidXfermode::Create(SK_ColorWHITE,
|
|
250,
|
|
SkAvoidXfermode::kAvoidColor_Mode))->unref();
|
|
|
|
canvas->drawRect(r, p2);
|
|
|
|
r.offsetTo(0.0f, 64);
|
|
|
|
// LL corner: replace red with transparent blue with a loose tolerance
|
|
SkPaint p3;
|
|
p3.setColor(0x7F0000FF);
|
|
p3.setXfermode(SkAvoidXfermode::Create(SK_ColorRED,
|
|
250,
|
|
SkAvoidXfermode::kTargetColor_Mode))->unref();
|
|
|
|
canvas->drawRect(r, p3);
|
|
|
|
r.offsetTo(64, 64);
|
|
|
|
// LR corner: draw black everywhere except red with a loose tolerance
|
|
SkPaint p4;
|
|
p4.setColor(SK_ColorBLACK);
|
|
p4.setXfermode(SkAvoidXfermode::Create(SK_ColorRED,
|
|
5,
|
|
SkAvoidXfermode::kAvoidColor_Mode))->unref();
|
|
|
|
canvas->drawRect(r, p4);
|
|
}
|
|
|
|
private:
|
|
SkBitmap fBM;
|
|
|
|
typedef GM INHERITED;
|
|
};
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
DEF_GM(return new AvoidXfermodeGM;)
|