xref: /aosp_15_r20/external/skia/docs/examples/Image_RasterFromPixmap.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(Image_RasterFromPixmap, 256, 256, true, 0) {
releaseProc(const void * pixels,SkImages::ReleaseContext context)5     static void releaseProc(const void* pixels, SkImages::ReleaseContext context) {
6         int* countPtr = static_cast<int*>(context);
7         *countPtr += 1;
8     }
9 
draw(SkCanvas * canvas)10 void draw(SkCanvas* canvas) {
11     SkColor color = 0;
12     SkPixmap pixmap(SkImageInfo::MakeN32(1, 1, kPremul_SkAlphaType), &color, 4);
13     int releaseCount = 0;
14     sk_sp<SkImage> image(SkImages::RasterFromPixmap(pixmap, releaseProc, &releaseCount));
15     SkDebugf("before reset: %d\n", releaseCount);
16     image.reset();
17     SkDebugf("after reset: %d\n", releaseCount);
18 }
19 }  // END FIDDLE
20