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
15DEF_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) &&
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