1 /*
2  * Copyright 2017 Google Inc.
3  *
4  * Use of this source code is governed by a BSD-style license that can be
5  * found in the LICENSE file.
6  */
7 
8 #include "gm.h"
9 #include "Resources.h"
10 
11 #if SK_SUPPORT_GPU
12 #include "GrContext.h"
13 #include "SkImage.h"
14 
15 DEF_SIMPLE_GM(cross_context_image, canvas, 512 * 3 + 60, 512 + 128 + 30) {
16     GrContext* context = canvas->getGrContext();
17     if (!context) {
18         skiagm::GM::DrawGpuOnlyMessage(canvas);
19         return;
20     }
21 
22     sk_sp<SkData> encodedData = GetResourceAsData("images/mandrill_512.png");
23 
24     sk_sp<SkImage> encodedImage = SkImage::MakeFromEncoded(encodedData);
25     canvas->drawImage(encodedImage, 10, 10);
26 
27     sk_sp<SkImage> crossContextImage = SkImage::MakeCrossContextFromEncoded(
28             context, encodedData, false, canvas->imageInfo().colorSpace());
29     canvas->drawImage(crossContextImage, 512 + 30, 10);
30 
31     SkBitmap bmp;
32     SkPixmap pixmap;
33     SkAssertResult(encodedImage->asLegacyBitmap(&bmp, SkImage::kRO_LegacyBitmapMode) &&
34                    bmp.peekPixels(&pixmap));
35 
36     sk_sp<SkImage> crossContextRaster = SkImage::MakeCrossContextFromPixmap(
37             context, pixmap, false, canvas->imageInfo().colorSpace());
38     canvas->drawImage(crossContextRaster, 512 + 512 + 60, 10);
39 
40     SkIRect subset = SkIRect::MakeXYWH(256 - 64, 256 - 64, 128, 128);
41     sk_sp<SkImage> encodedSubset = encodedImage->makeSubset(subset);
42     sk_sp<SkImage> crossContextSubset = crossContextImage->makeSubset(subset);
43     sk_sp<SkImage> crossContextRasterSubset = crossContextRaster->makeSubset(subset);
44 
45     canvas->drawImage(encodedSubset, 10, 512 + 30);
46     canvas->drawImage(crossContextSubset, 512 + 30, 512 + 30);
47     canvas->drawImage(crossContextRasterSubset, 512 + 512 + 60, 512 + 30);
48 }
49 
50 #endif
51