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/*
* 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 "SkCanvas.h"
#include "SkOverdrawColorFilter.h"
static inline void set_bitmap(SkBitmap* bitmap, uint8_t alpha) {
for (int y = 0; y < bitmap->height(); y++) {
for (int x = 0; x < bitmap->width(); x++) {
uint8_t* addr = bitmap->getAddr8(x, y);
*addr = alpha;
}
}
bitmap->notifyPixelsChanged();
}
class OverdrawColorFilter : public skiagm::GM {
public:
OverdrawColorFilter() {}
protected:
virtual SkString onShortName() override {
return SkString("overdrawcolorfilter");;
}
virtual SkISize onISize() override {
return SkISize::Make(200, 400);
}
void onDraw(SkCanvas* canvas) override {
static const SkPMColor colors[SkOverdrawColorFilter::kNumColors] = {
0x80800000, 0x80008000, 0x80000080, 0x80808000, 0x80008080, 0x80800080,
};
SkPaint paint;
sk_sp<SkColorFilter> colorFilter = SkOverdrawColorFilter::Make(colors);
paint.setColorFilter(colorFilter);
SkImageInfo info = SkImageInfo::MakeA8(100, 100);
SkBitmap bitmap;
bitmap.allocPixels(info);
set_bitmap(&bitmap, 0);
canvas->drawBitmap(bitmap, 0, 0, &paint);
set_bitmap(&bitmap, 1);
canvas->drawBitmap(bitmap, 0, 100, &paint);
set_bitmap(&bitmap, 2);
canvas->drawBitmap(bitmap, 0, 200, &paint);
set_bitmap(&bitmap, 3);
canvas->drawBitmap(bitmap, 0, 300, &paint);
set_bitmap(&bitmap, 4);
canvas->drawBitmap(bitmap, 100, 0, &paint);
set_bitmap(&bitmap, 5);
canvas->drawBitmap(bitmap, 100, 100, &paint);
set_bitmap(&bitmap, 6);
canvas->drawBitmap(bitmap, 100, 200, &paint);
}
private:
typedef GM INHERITED;
};
DEF_GM(return new OverdrawColorFilter;)
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