xref: /aosp_15_r20/external/skia/docs/examples/Image_BorrowTextureFrom.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_BorrowTextureFrom, 256, 128, false, 3) {
draw(SkCanvas * canvas)5*c8dee2aaSAndroid Build Coastguard Worker void draw(SkCanvas* canvas) {
6*c8dee2aaSAndroid Build Coastguard Worker     auto dContext = GrAsDirectContext(canvas->recordingContext());
7*c8dee2aaSAndroid Build Coastguard Worker     if (!dContext) {
8*c8dee2aaSAndroid Build Coastguard Worker         return;
9*c8dee2aaSAndroid Build Coastguard Worker     }
10*c8dee2aaSAndroid Build Coastguard Worker 
11*c8dee2aaSAndroid Build Coastguard Worker     canvas->scale(.25f, .25f);
12*c8dee2aaSAndroid Build Coastguard Worker     int x = 0;
13*c8dee2aaSAndroid Build Coastguard Worker     for (auto origin : { kBottomLeft_GrSurfaceOrigin, kTopLeft_GrSurfaceOrigin } ) {
14*c8dee2aaSAndroid Build Coastguard Worker         sk_sp<SkImage> image = SkImages::BorrowTextureFrom(dContext,
15*c8dee2aaSAndroid Build Coastguard Worker                                                            backEndTexture,
16*c8dee2aaSAndroid Build Coastguard Worker                                                            origin,
17*c8dee2aaSAndroid Build Coastguard Worker                                                            kRGBA_8888_SkColorType,
18*c8dee2aaSAndroid Build Coastguard Worker                                                            kOpaque_SkAlphaType,
19*c8dee2aaSAndroid Build Coastguard Worker                                                            nullptr);
20*c8dee2aaSAndroid Build Coastguard Worker         canvas->drawImage(image, x, 0);
21*c8dee2aaSAndroid Build Coastguard Worker         x += 512;
22*c8dee2aaSAndroid Build Coastguard Worker     }
23*c8dee2aaSAndroid Build Coastguard Worker }
24*c8dee2aaSAndroid Build Coastguard Worker }  // END FIDDLE
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