xref: /aosp_15_r20/external/skia/docs/examples/Color_Constants_d.cpp (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
1 // Copyright 2019 Google LLC.
2 // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
3 #include "tools/fiddle/examples.h"
4 REG_FIDDLE(Color_Constants_d, 256, 256, false, 0) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6     std::vector<uint32_t> srcPixels;
7     constexpr int width = 256;
8     constexpr int height = 256;
9     srcPixels.resize(width * height);
10     SkImageInfo imageInfo = SkImageInfo::MakeN32Premul(width, height);
11     SkPixmap pixmap(imageInfo, &srcPixels.front(), imageInfo.minRowBytes());
12     pixmap.erase(SK_ColorTRANSPARENT);
13     pixmap.erase(SK_ColorRED, { 24, 24, 192, 192 } );
14     pixmap.erase(SK_ColorWHITE, { 48, 48, 168, 168 } );
15     SkBitmap bitmap;
16     bitmap.installPixels(pixmap);
17     canvas->drawImage(bitmap.asImage(), 0, 0);
18     canvas->drawImage(bitmap.asImage(), 48, 48);
19 }
20 }  // END FIDDLE
21