xref: /aosp_15_r20/external/skia/docs/examples/Image_RasterFromPixmap.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(Image_RasterFromPixmap, 256, 256, true, 0) {
releaseProc(const void * pixels,SkImages::ReleaseContext context)5*c8dee2aaSAndroid Build Coastguard Worker     static void releaseProc(const void* pixels, SkImages::ReleaseContext context) {
6*c8dee2aaSAndroid Build Coastguard Worker         int* countPtr = static_cast<int*>(context);
7*c8dee2aaSAndroid Build Coastguard Worker         *countPtr += 1;
8*c8dee2aaSAndroid Build Coastguard Worker     }
9*c8dee2aaSAndroid Build Coastguard Worker 
draw(SkCanvas * canvas)10*c8dee2aaSAndroid Build Coastguard Worker void draw(SkCanvas* canvas) {
11*c8dee2aaSAndroid Build Coastguard Worker     SkColor color = 0;
12*c8dee2aaSAndroid Build Coastguard Worker     SkPixmap pixmap(SkImageInfo::MakeN32(1, 1, kPremul_SkAlphaType), &color, 4);
13*c8dee2aaSAndroid Build Coastguard Worker     int releaseCount = 0;
14*c8dee2aaSAndroid Build Coastguard Worker     sk_sp<SkImage> image(SkImages::RasterFromPixmap(pixmap, releaseProc, &releaseCount));
15*c8dee2aaSAndroid Build Coastguard Worker     SkDebugf("before reset: %d\n", releaseCount);
16*c8dee2aaSAndroid Build Coastguard Worker     image.reset();
17*c8dee2aaSAndroid Build Coastguard Worker     SkDebugf("after reset: %d\n", releaseCount);
18*c8dee2aaSAndroid Build Coastguard Worker }
19*c8dee2aaSAndroid Build Coastguard Worker }  // END FIDDLE
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