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- // Copyright 2019 Google LLC.
- // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
- #include "tools/fiddle/examples.h"
- // HASH=3ac267b08b12dc83c95f91d8dd5d70ee
- REG_FIDDLE(ImageInfo_makeColorType, 256, 256, false, 0) {
- void draw(SkCanvas* canvas) {
- const int width = 256;
- const int height = 128;
- SkColor pixels[height][width];
- for (int y = 0; y < height; ++y) {
- for (int x = 0; x < width; ++x) {
- int red = SkScalarRoundToInt(255 * SkScalarAbs(SkScalarSin((x * 4 + y) * 0.03f)));
- int blue = SkScalarRoundToInt(255 * SkScalarAbs(SkScalarCos((x * 3 + y) * 0.04f)));
- int green = SkScalarRoundToInt(255 * SkScalarAbs(SkScalarSin((x * 2 + y) * 0.05f)));
- int alpha = SkScalarRoundToInt(255 * SkScalarAbs(SkScalarCos((x * 1 + y) * 0.006f)));
- pixels[y][x] =
- SkColorSetARGB(alpha, red * alpha / 255, green * alpha / 255, blue * alpha / 255);
- }
- }
- SkBitmap bitmap;
- SkImageInfo info = SkImageInfo::Make(width, height, kBGRA_8888_SkColorType, kPremul_SkAlphaType);
- bitmap.installPixels(info, (void*) pixels, sizeof(SkColor) * width);
- canvas->drawBitmap(source, 0, 0);
- canvas->drawBitmap(bitmap, 0, 0);
- SkImageInfo rgbaInfo = info.makeColorType(kRGBA_8888_SkColorType);
- bitmap.installPixels(rgbaInfo, (void*) pixels, sizeof(SkColor) * width);
- canvas->drawBitmap(bitmap, 0, 128);
- }
- } // END FIDDLE
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