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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/gm.h"
9 #include "include/core/SkBitmap.h"
10 #include "include/core/SkCanvas.h"
11 #include "include/core/SkData.h"
12 #include "include/core/SkImage.h"
13 #include "include/core/SkPaint.h"
14 #include "include/core/SkPixmap.h"
15 #include "include/core/SkRect.h"
16 #include "include/core/SkRefCnt.h"
17 #include "include/core/SkString.h"
18 #include "include/core/SkTypes.h"
19 #include "include/gpu/GrDirectContext.h"
20 #include "include/gpu/GrRecordingContext.h"
21 #include "tools/Resources.h"
22 
23 DEF_SIMPLE_GPU_GM_CAN_FAIL(cross_context_image, rContext, canvas, errorMsg,
24                            3 * 256 + 40, 256 + 128 + 30) {
25     sk_sp<SkData> encodedData = GetResourceAsData("images/mandrill_256.png");
26     if (!encodedData) {
27         *errorMsg = "Could not load mandrill_256.png. Did you forget to set the resourcePath?";
28         return skiagm::DrawResult::kFail;
29     }
30 
31     auto dContext = rContext->asDirectContext();
32     if (!dContext) {
33         *errorMsg = "CrossContext image creation requires a direct context.";
34         return skiagm::DrawResult::kSkip;
35     }
36 
37     sk_sp<SkImage> images[3];
38     images[0] = SkImage::MakeFromEncoded(encodedData);
39 
40     SkBitmap bmp;
41     SkPixmap pixmap;
42     SkAssertResult(images[0]->asLegacyBitmap(&bmp) &&
43                    bmp.peekPixels(&pixmap));
44 
45     images[1] = SkImage::MakeCrossContextFromPixmap(dContext, pixmap, false);
46     images[2] = SkImage::MakeCrossContextFromPixmap(dContext, pixmap, true);
47 
48     canvas->translate(10, 10);
49 
50     for (size_t i = 0; i < SK_ARRAY_COUNT(images); ++i) {
51         canvas->save();
52 
53         canvas->drawImage(images[i], 0, 0);
54         canvas->translate(0, 256 + 10);
55 
56         canvas->drawImage(images[i]->makeSubset(SkIRect::MakeXYWH(64, 64, 128, 128), dContext),
57                           0, 0);
58         canvas->translate(128, 0);
59 
60         canvas->drawImageRect(images[i], SkRect::MakeWH(128, 128),
61                               SkSamplingOptions(SkFilterMode::kLinear,
62                                                 SkMipmapMode::kLinear));
63 
64         canvas->restore();
65         canvas->translate(256 + 10, 0);
66     }
67     return skiagm::DrawResult::kOk;
68 }
69