1 /*
2 * Copyright 2015 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 "include/core/SkAlphaType.h"
9 #include "include/core/SkBitmap.h"
10 #include "include/core/SkCanvas.h"
11 #include "include/core/SkColor.h"
12 #include "include/core/SkColorType.h"
13 #include "include/core/SkImage.h"
14 #include "include/core/SkImageInfo.h"
15 #include "include/core/SkPaint.h"
16 #include "include/core/SkRect.h"
17 #include "include/core/SkRefCnt.h"
18 #include "tests/Test.h"
19
20 #include <cstdint>
21 #include <map>
22
23 static const int gWidth = 20;
24 static const int gHeight = 20;
25
26 // Tests that SkNewImageFromBitmap obeys pixelref origin.
DEF_TEST(SkImageFromBitmap_extractSubset,reporter)27 DEF_TEST(SkImageFromBitmap_extractSubset, reporter) {
28 sk_sp<SkImage> image;
29 {
30 SkBitmap srcBitmap;
31 srcBitmap.allocN32Pixels(gWidth, gHeight);
32 srcBitmap.eraseColor(SK_ColorRED);
33 SkCanvas canvas(srcBitmap);
34 SkIRect r = SkIRect::MakeXYWH(5, 5, gWidth - 5, gWidth - 5);
35 SkPaint p;
36 p.setColor(SK_ColorGREEN);
37 canvas.drawIRect(r, p);
38 SkBitmap dstBitmap;
39 srcBitmap.extractSubset(&dstBitmap, r);
40 image = dstBitmap.asImage();
41 }
42
43 SkBitmap tgt;
44 tgt.allocN32Pixels(gWidth, gHeight);
45 SkCanvas canvas(tgt);
46 canvas.clear(SK_ColorTRANSPARENT);
47 canvas.drawImage(image, 0, 0);
48
49 uint32_t pixel = 0;
50 SkImageInfo info = SkImageInfo::Make(1, 1, kBGRA_8888_SkColorType, kUnpremul_SkAlphaType);
51 tgt.readPixels(info, &pixel, 4, 0, 0);
52 REPORTER_ASSERT(reporter, pixel == SK_ColorGREEN);
53 tgt.readPixels(info, &pixel, 4, gWidth - 6, gWidth - 6);
54 REPORTER_ASSERT(reporter, pixel == SK_ColorGREEN);
55
56 tgt.readPixels(info, &pixel, 4, gWidth - 5, gWidth - 5);
57 REPORTER_ASSERT(reporter, pixel == SK_ColorTRANSPARENT);
58 }
59
60 // This makes sure we can use RequiredProperties as a key in a map, which some
61 // clients depend on.
DEF_TEST(SkImageRequiredPropertiesCanBeMapKey,r)62 DEF_TEST(SkImageRequiredPropertiesCanBeMapKey, r) {
63 std::map<SkImage::RequiredProperties, int> test;
64 SkImage::RequiredProperties rp;
65 test.emplace(rp, 7);
66 }
67