зеркало из https://github.com/mozilla/moz-skia.git
129 строки
3.7 KiB
C++
129 строки
3.7 KiB
C++
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/*
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* Copyright 2011 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "gm.h"
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namespace skiagm {
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static const char* gColorTypeNames[] = {
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"unknown",
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"A8",
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"565",
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"4444",
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"8888",
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"8888",
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"Index8",
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};
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static const SkColorType gColorTypes[] = {
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kRGB_565_SkColorType,
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kARGB_4444_SkColorType,
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kN32_SkColorType,
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};
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#define NUM_CONFIGS SK_ARRAY_COUNT(gColorTypes)
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static void draw_checks(SkCanvas* canvas, int width, int height) {
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SkPaint paint;
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paint.setColor(SK_ColorRED);
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canvas->drawRectCoords(SkIntToScalar(0), SkIntToScalar(0),
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SkIntToScalar(width / 2), SkIntToScalar(height / 2), paint);
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paint.setColor(SK_ColorGREEN);
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canvas->drawRectCoords(SkIntToScalar(width / 2), SkIntToScalar(0),
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SkIntToScalar(width), SkIntToScalar(height / 2), paint);
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paint.setColor(SK_ColorBLUE);
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canvas->drawRectCoords(SkIntToScalar(0), SkIntToScalar(height / 2),
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SkIntToScalar(width / 2), SkIntToScalar(height), paint);
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paint.setColor(SK_ColorYELLOW);
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canvas->drawRectCoords(SkIntToScalar(width / 2), SkIntToScalar(height / 2),
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SkIntToScalar(width), SkIntToScalar(height), paint);
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}
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class BitmapCopyGM : public GM {
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public:
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SkBitmap fDst[NUM_CONFIGS];
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BitmapCopyGM() {
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this->setBGColor(0xFFDDDDDD);
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}
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protected:
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virtual SkString onShortName() {
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return SkString("bitmapcopy");
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}
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virtual SkISize onISize() {
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return SkISize::Make(540, 330);
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}
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virtual void onDraw(SkCanvas* canvas) {
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SkPaint paint;
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SkScalar horizMargin = 10;
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SkScalar vertMargin = 10;
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SkBitmap src;
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src.allocN32Pixels(40, 40);
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SkCanvas canvasTmp(src);
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draw_checks(&canvasTmp, 40, 40);
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for (unsigned i = 0; i < NUM_CONFIGS; ++i) {
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src.copyTo(&fDst[i], gColorTypes[i]);
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}
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canvas->clear(0xFFDDDDDD);
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paint.setAntiAlias(true);
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sk_tool_utils::set_portable_typeface(&paint);
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SkScalar width = SkIntToScalar(40);
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SkScalar height = SkIntToScalar(40);
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if (paint.getFontSpacing() > height) {
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height = paint.getFontSpacing();
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}
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for (unsigned i = 0; i < NUM_CONFIGS; i++) {
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const char* name = gColorTypeNames[src.colorType()];
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SkScalar textWidth = paint.measureText(name, strlen(name));
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if (textWidth > width) {
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width = textWidth;
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}
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}
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SkScalar horizOffset = width + horizMargin;
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SkScalar vertOffset = height + vertMargin;
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canvas->translate(SkIntToScalar(20), SkIntToScalar(20));
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for (unsigned i = 0; i < NUM_CONFIGS; i++) {
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canvas->save();
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// Draw destination config name
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const char* name = gColorTypeNames[fDst[i].colorType()];
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SkScalar textWidth = paint.measureText(name, strlen(name));
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SkScalar x = (width - textWidth) / SkScalar(2);
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SkScalar y = paint.getFontSpacing() / SkScalar(2);
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canvas->drawText(name, strlen(name), x, y, paint);
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// Draw destination bitmap
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canvas->translate(0, vertOffset);
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x = (width - 40) / SkScalar(2);
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canvas->drawBitmap(fDst[i], x, 0, &paint);
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canvas->restore();
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canvas->translate(horizOffset, 0);
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}
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}
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virtual uint32_t onGetFlags() const { return kSkipPicture_Flag
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| kSkipPipe_Flag; }
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private:
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typedef GM INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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static GM* MyFactory(void*) { return new BitmapCopyGM; }
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static GMRegistry reg(MyFactory);
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}
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