xref: /aosp_15_r20/external/skia/docs/examples/draw_pixel_array.cpp (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
1*c8dee2aaSAndroid Build Coastguard Worker // Copyright 2020 Google LLC.
2*c8dee2aaSAndroid Build Coastguard Worker // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
3*c8dee2aaSAndroid Build Coastguard Worker #include "tools/fiddle/examples.h"
4*c8dee2aaSAndroid Build Coastguard Worker REG_FIDDLE(draw_pixel_array, 256, 256, false, 5) {
draw(SkCanvas * canvas)5*c8dee2aaSAndroid Build Coastguard Worker void draw(SkCanvas* canvas) {
6*c8dee2aaSAndroid Build Coastguard Worker     constexpr int width = 4;
7*c8dee2aaSAndroid Build Coastguard Worker     constexpr int height = 4;
8*c8dee2aaSAndroid Build Coastguard Worker     static const uint32_t pixels[height * width] = {
9*c8dee2aaSAndroid Build Coastguard Worker         0xFF000000, 0xFF005500, 0xFF00AA00, 0xFF00FF00,
10*c8dee2aaSAndroid Build Coastguard Worker         0xFF000055, 0xFF005555, 0xFF00AA55, 0xFF00FF55,
11*c8dee2aaSAndroid Build Coastguard Worker         0xFF0000AA, 0xFF0055AA, 0xFF00AAAA, 0xFF00FFAA,
12*c8dee2aaSAndroid Build Coastguard Worker         0xFF0000FF, 0xFF0055FF, 0xFF00AAFF, 0xFF00FFFF,
13*c8dee2aaSAndroid Build Coastguard Worker     };
14*c8dee2aaSAndroid Build Coastguard Worker     SkPixmap pixmap(SkImageInfo::Make(width, height, kN32_SkColorType, kPremul_SkAlphaType),
15*c8dee2aaSAndroid Build Coastguard Worker                     pixels, sizeof(uint32_t) * width);
16*c8dee2aaSAndroid Build Coastguard Worker     sk_sp<SkImage> img = SkImages::RasterFromPixmapCopy(pixmap);
17*c8dee2aaSAndroid Build Coastguard Worker 
18*c8dee2aaSAndroid Build Coastguard Worker     canvas->scale(16, 16);
19*c8dee2aaSAndroid Build Coastguard Worker     canvas->drawImage(img, 6, 6);
20*c8dee2aaSAndroid Build Coastguard Worker }
21*c8dee2aaSAndroid Build Coastguard Worker }  // END FIDDLE
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