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