1 /*
2 * Copyright 2013 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 "SkBitmap.h"
9
10 #include "Test.h"
11
test_bigwidth(skiatest::Reporter * reporter)12 static void test_bigwidth(skiatest::Reporter* reporter) {
13 SkBitmap bm;
14 int width = 1 << 29; // *4 will be the high-bit of 32bit int
15
16 SkImageInfo info = SkImageInfo::MakeA8(width, 1);
17 REPORTER_ASSERT(reporter, bm.setInfo(info));
18 info.fColorType = kRGB_565_SkColorType;
19 REPORTER_ASSERT(reporter, bm.setInfo(info));
20
21 // for a 4-byte config, this width will compute a rowbytes of 0x80000000,
22 // which does not fit in a int32_t. setConfig should detect this, and fail.
23
24 // TODO: perhaps skia can relax this, and only require that rowBytes fit
25 // in a uint32_t (or larger), but for now this is the constraint.
26
27 info.fColorType = kN32_SkColorType;
28 REPORTER_ASSERT(reporter, !bm.setInfo(info));
29 }
30
31 /**
32 * This test contains basic sanity checks concerning bitmaps.
33 */
DEF_TEST(Bitmap,reporter)34 DEF_TEST(Bitmap, reporter) {
35 // Zero-sized bitmaps are allowed
36 for (int width = 0; width < 2; ++width) {
37 for (int height = 0; height < 2; ++height) {
38 SkBitmap bm;
39 bool setConf = bm.setInfo(SkImageInfo::MakeN32Premul(width, height));
40 REPORTER_ASSERT(reporter, setConf);
41 if (setConf) {
42 REPORTER_ASSERT(reporter, bm.allocPixels(NULL));
43 }
44 REPORTER_ASSERT(reporter, SkToBool(width & height) != bm.empty());
45 }
46 }
47
48 test_bigwidth(reporter);
49 }
50