xref: /aosp_15_r20/external/skia/docs/examples/Bitmap_pixelRef.cpp (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
1*c8dee2aaSAndroid Build Coastguard Worker // Copyright 2019 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(Bitmap_pixelRef, 256, 256, true, 3) {
draw(SkCanvas * canvas)5*c8dee2aaSAndroid Build Coastguard Worker void draw(SkCanvas* canvas) {
6*c8dee2aaSAndroid Build Coastguard Worker     SkBitmap subset;
7*c8dee2aaSAndroid Build Coastguard Worker     source.extractSubset(&subset, SkIRect::MakeXYWH(32, 64, 128, 256));
8*c8dee2aaSAndroid Build Coastguard Worker     SkDebugf("src ref %c= sub ref\n", source.pixelRef() == subset.pixelRef() ? '=' : '!');
9*c8dee2aaSAndroid Build Coastguard Worker     SkDebugf("src pixels %c= sub pixels\n", source.getPixels() == subset.getPixels() ? '=' : '!');
10*c8dee2aaSAndroid Build Coastguard Worker     SkDebugf("src addr %c= sub addr\n", source.getAddr(32, 64) == subset.getAddr(0, 0) ? '=' : '!');
11*c8dee2aaSAndroid Build Coastguard Worker }
12*c8dee2aaSAndroid Build Coastguard Worker }  // END FIDDLE
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