xref: /aosp_15_r20/external/skia/docs/examples/Canvas_drawBitmapRect_3.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(Canvas_drawBitmapRect_3, 256, 64, false, 0) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6     uint32_t pixels[][2] = { { 0x00000000, 0x55550000},
7                              { 0xAAAA0000, 0xFFFF0000} };
8     SkBitmap bitmap;
9     bitmap.installPixels(SkImageInfo::MakeN32Premul(2, 2),
10             (void*) pixels, sizeof(pixels[0]));
11     SkPaint paint;
12     canvas->scale(4, 4);
13     for (auto color : { SK_ColorRED, SK_ColorBLUE, SK_ColorGREEN } ) {
14         paint.setColorFilter(SkColorFilters::Blend(color, SkBlendMode::kPlus));
15         canvas->drawImageRect(bitmap.asImage().get(), SkRect::MakeWH(8, 8),
16                               SkSamplingOptions(), &paint);
17         canvas->translate(8, 0);
18     }
19 }
20 }  // END FIDDLE
21