зеркало из https://github.com/mozilla/moz-skia.git
126 строки
3.7 KiB
C++
126 строки
3.7 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.h"
|
|
|
|
namespace skiagm {
|
|
|
|
static const char* gConfigNames[] = {
|
|
"unknown config",
|
|
"A1",
|
|
"A8",
|
|
"Index8",
|
|
"565",
|
|
"4444",
|
|
"8888"
|
|
};
|
|
|
|
SkBitmap::Config gConfigs[] = {
|
|
SkBitmap::kRGB_565_Config,
|
|
SkBitmap::kARGB_4444_Config,
|
|
SkBitmap::kARGB_8888_Config,
|
|
};
|
|
|
|
#define NUM_CONFIGS (sizeof(gConfigs) / sizeof(SkBitmap::Config))
|
|
|
|
static void draw_checks(SkCanvas* canvas, int width, int height) {
|
|
SkPaint paint;
|
|
paint.setColor(SK_ColorRED);
|
|
canvas->drawRectCoords(SkIntToScalar(0), SkIntToScalar(0),
|
|
SkIntToScalar(width / 2), SkIntToScalar(height / 2), paint);
|
|
paint.setColor(SK_ColorGREEN);
|
|
canvas->drawRectCoords(SkIntToScalar(width / 2), SkIntToScalar(0),
|
|
SkIntToScalar(width), SkIntToScalar(height / 2), paint);
|
|
paint.setColor(SK_ColorBLUE);
|
|
canvas->drawRectCoords(SkIntToScalar(0), SkIntToScalar(height / 2),
|
|
SkIntToScalar(width / 2), SkIntToScalar(height), paint);
|
|
paint.setColor(SK_ColorYELLOW);
|
|
canvas->drawRectCoords(SkIntToScalar(width / 2), SkIntToScalar(height / 2),
|
|
SkIntToScalar(width), SkIntToScalar(height), paint);
|
|
}
|
|
|
|
class BitmapCopyGM : public GM {
|
|
public:
|
|
SkBitmap fDst[NUM_CONFIGS];
|
|
|
|
BitmapCopyGM() {
|
|
this->setBGColor(0xFFDDDDDD);
|
|
}
|
|
|
|
protected:
|
|
virtual SkString onShortName() {
|
|
return SkString("bitmapcopy");
|
|
}
|
|
|
|
virtual SkISize onISize() {
|
|
return make_isize(540, 330);
|
|
}
|
|
|
|
virtual void onDraw(SkCanvas* canvas) {
|
|
SkPaint paint;
|
|
SkScalar horizMargin(SkIntToScalar(10));
|
|
SkScalar vertMargin(SkIntToScalar(10));
|
|
|
|
draw_checks(canvas, 40, 40);
|
|
SkBitmap src = canvas->getDevice()->accessBitmap(false);
|
|
|
|
for (unsigned i = 0; i < NUM_CONFIGS; ++i) {
|
|
if (!src.deepCopyTo(&fDst[i], gConfigs[i])) {
|
|
src.copyTo(&fDst[i], gConfigs[i]);
|
|
}
|
|
}
|
|
|
|
canvas->clear(0xFFDDDDDD);
|
|
paint.setAntiAlias(true);
|
|
SkScalar width = SkIntToScalar(40);
|
|
SkScalar height = SkIntToScalar(40);
|
|
if (paint.getFontSpacing() > height) {
|
|
height = paint.getFontSpacing();
|
|
}
|
|
for (unsigned i = 0; i < NUM_CONFIGS; i++) {
|
|
const char* name = gConfigNames[src.config()];
|
|
SkScalar textWidth = paint.measureText(name, strlen(name));
|
|
if (textWidth > width) {
|
|
width = textWidth;
|
|
}
|
|
}
|
|
SkScalar horizOffset = width + horizMargin;
|
|
SkScalar vertOffset = height + vertMargin;
|
|
canvas->translate(SkIntToScalar(20), SkIntToScalar(20));
|
|
|
|
for (unsigned i = 0; i < NUM_CONFIGS; i++) {
|
|
canvas->save();
|
|
// Draw destination config name
|
|
const char* name = gConfigNames[fDst[i].config()];
|
|
SkScalar textWidth = paint.measureText(name, strlen(name));
|
|
SkScalar x = (width - textWidth) / SkScalar(2);
|
|
SkScalar y = paint.getFontSpacing() / SkScalar(2);
|
|
canvas->drawText(name, strlen(name), x, y, paint);
|
|
|
|
// Draw destination bitmap
|
|
canvas->translate(0, vertOffset);
|
|
x = (width - 40) / SkScalar(2);
|
|
canvas->drawBitmap(fDst[i], x, 0, &paint);
|
|
canvas->restore();
|
|
|
|
canvas->translate(horizOffset, 0);
|
|
}
|
|
}
|
|
|
|
virtual uint32_t onGetFlags() const { return kSkipPicture_Flag; }
|
|
|
|
private:
|
|
typedef GM INHERITED;
|
|
};
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
static GM* MyFactory(void*) { return new BitmapCopyGM; }
|
|
static GMRegistry reg(MyFactory);
|
|
|
|
}
|