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halcanary@google.com44287342013-12-13 18:29:51 +00001/*
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"
reed2ff257b2015-01-23 07:51:14 -08009#include "SkMallocPixelRef.h"
Hal Canary02e65df2016-12-07 16:21:53 -050010#include "SkRandom.h"
halcanary@google.com44287342013-12-13 18:29:51 +000011#include "Test.h"
Matt Sarett68b8e3d2017-04-28 11:15:22 -040012#include "sk_tool_utils.h"
halcanary@google.com44287342013-12-13 18:29:51 +000013
reedcb674142015-06-05 06:58:22 -070014static void test_peekpixels(skiatest::Reporter* reporter) {
15 const SkImageInfo info = SkImageInfo::MakeN32Premul(10, 10);
16
17 SkPixmap pmap;
18 SkBitmap bm;
19
20 // empty should return false
halcanary96fcdcc2015-08-27 07:41:13 -070021 REPORTER_ASSERT(reporter, !bm.peekPixels(nullptr));
reedcb674142015-06-05 06:58:22 -070022 REPORTER_ASSERT(reporter, !bm.peekPixels(&pmap));
23
24 // no pixels should return false
25 bm.setInfo(SkImageInfo::MakeN32Premul(10, 10));
halcanary96fcdcc2015-08-27 07:41:13 -070026 REPORTER_ASSERT(reporter, !bm.peekPixels(nullptr));
reedcb674142015-06-05 06:58:22 -070027 REPORTER_ASSERT(reporter, !bm.peekPixels(&pmap));
28
29 // real pixels should return true
30 bm.allocPixels(info);
halcanary96fcdcc2015-08-27 07:41:13 -070031 REPORTER_ASSERT(reporter, bm.peekPixels(nullptr));
reedcb674142015-06-05 06:58:22 -070032 REPORTER_ASSERT(reporter, bm.peekPixels(&pmap));
33 REPORTER_ASSERT(reporter, pmap.info() == bm.info());
34 REPORTER_ASSERT(reporter, pmap.addr() == bm.getPixels());
35 REPORTER_ASSERT(reporter, pmap.rowBytes() == bm.rowBytes());
reedcb674142015-06-05 06:58:22 -070036}
37
reed2ff257b2015-01-23 07:51:14 -080038// https://code.google.com/p/chromium/issues/detail?id=446164
39static void test_bigalloc(skiatest::Reporter* reporter) {
40 const int width = 0x40000001;
41 const int height = 0x00000096;
42 const SkImageInfo info = SkImageInfo::MakeN32Premul(width, height);
43
44 SkBitmap bm;
45 REPORTER_ASSERT(reporter, !bm.tryAllocPixels(info));
46
Mike Reed086a4272017-07-18 10:53:11 -040047 sk_sp<SkPixelRef> pr = SkMallocPixelRef::MakeAllocate(info, info.minRowBytes());
reed2ff257b2015-01-23 07:51:14 -080048 REPORTER_ASSERT(reporter, !pr);
49}
50
reedf0aed972014-07-01 12:48:11 -070051static void test_allocpixels(skiatest::Reporter* reporter) {
52 const int width = 10;
53 const int height = 10;
54 const SkImageInfo info = SkImageInfo::MakeN32Premul(width, height);
55 const size_t explicitRowBytes = info.minRowBytes() + 24;
56
57 SkBitmap bm;
58 bm.setInfo(info);
59 REPORTER_ASSERT(reporter, info.minRowBytes() == bm.rowBytes());
60 bm.allocPixels();
61 REPORTER_ASSERT(reporter, info.minRowBytes() == bm.rowBytes());
62 bm.reset();
63 bm.allocPixels(info);
64 REPORTER_ASSERT(reporter, info.minRowBytes() == bm.rowBytes());
65
66 bm.setInfo(info, explicitRowBytes);
67 REPORTER_ASSERT(reporter, explicitRowBytes == bm.rowBytes());
68 bm.allocPixels();
69 REPORTER_ASSERT(reporter, explicitRowBytes == bm.rowBytes());
70 bm.reset();
71 bm.allocPixels(info, explicitRowBytes);
72 REPORTER_ASSERT(reporter, explicitRowBytes == bm.rowBytes());
73
74 bm.reset();
75 bm.setInfo(info, 0);
76 REPORTER_ASSERT(reporter, info.minRowBytes() == bm.rowBytes());
77 bm.reset();
78 bm.allocPixels(info, 0);
79 REPORTER_ASSERT(reporter, info.minRowBytes() == bm.rowBytes());
80
81 bm.reset();
82 bool success = bm.setInfo(info, info.minRowBytes() - 1); // invalid for 32bit
83 REPORTER_ASSERT(reporter, !success);
84 REPORTER_ASSERT(reporter, bm.isNull());
85}
86
reed@google.com48569642013-12-30 19:21:22 +000087static void test_bigwidth(skiatest::Reporter* reporter) {
88 SkBitmap bm;
89 int width = 1 << 29; // *4 will be the high-bit of 32bit int
90
commit-bot@chromium.orga3264e52014-05-30 13:26:10 +000091 SkImageInfo info = SkImageInfo::MakeA8(width, 1);
92 REPORTER_ASSERT(reporter, bm.setInfo(info));
reede5ea5002014-09-03 11:54:58 -070093 REPORTER_ASSERT(reporter, bm.setInfo(info.makeColorType(kRGB_565_SkColorType)));
skia.committer@gmail.comf5e1f632013-12-31 07:01:36 +000094
reed@google.com48569642013-12-30 19:21:22 +000095 // for a 4-byte config, this width will compute a rowbytes of 0x80000000,
96 // which does not fit in a int32_t. setConfig should detect this, and fail.
97
98 // TODO: perhaps skia can relax this, and only require that rowBytes fit
99 // in a uint32_t (or larger), but for now this is the constraint.
100
reede5ea5002014-09-03 11:54:58 -0700101 REPORTER_ASSERT(reporter, !bm.setInfo(info.makeColorType(kN32_SkColorType)));
reed@google.com48569642013-12-30 19:21:22 +0000102}
103
halcanary@google.com44287342013-12-13 18:29:51 +0000104/**
105 * This test contains basic sanity checks concerning bitmaps.
106 */
107DEF_TEST(Bitmap, reporter) {
halcanary@google.com44287342013-12-13 18:29:51 +0000108 // Zero-sized bitmaps are allowed
109 for (int width = 0; width < 2; ++width) {
110 for (int height = 0; height < 2; ++height) {
111 SkBitmap bm;
commit-bot@chromium.orga3264e52014-05-30 13:26:10 +0000112 bool setConf = bm.setInfo(SkImageInfo::MakeN32Premul(width, height));
halcanary@google.com44287342013-12-13 18:29:51 +0000113 REPORTER_ASSERT(reporter, setConf);
114 if (setConf) {
reed84825042014-09-02 12:50:45 -0700115 bm.allocPixels();
halcanary@google.com44287342013-12-13 18:29:51 +0000116 }
halcanary@google.com2af6c122013-12-13 19:25:21 +0000117 REPORTER_ASSERT(reporter, SkToBool(width & height) != bm.empty());
halcanary@google.com44287342013-12-13 18:29:51 +0000118 }
119 }
skia.committer@gmail.comf5e1f632013-12-31 07:01:36 +0000120
reed@google.com48569642013-12-30 19:21:22 +0000121 test_bigwidth(reporter);
reedf0aed972014-07-01 12:48:11 -0700122 test_allocpixels(reporter);
reed2ff257b2015-01-23 07:51:14 -0800123 test_bigalloc(reporter);
reedcb674142015-06-05 06:58:22 -0700124 test_peekpixels(reporter);
halcanary@google.com44287342013-12-13 18:29:51 +0000125}
halcanaryb260d132015-12-09 10:21:59 -0800126
127/**
128 * This test checks that getColor works for both swizzles.
129 */
130DEF_TEST(Bitmap_getColor_Swizzle, r) {
131 SkBitmap source;
132 source.allocN32Pixels(1,1);
133 source.eraseColor(SK_ColorRED);
134 SkColorType colorTypes[] = {
135 kRGBA_8888_SkColorType,
136 kBGRA_8888_SkColorType,
137 };
138 for (SkColorType ct : colorTypes) {
139 SkBitmap copy;
Matt Sarett68b8e3d2017-04-28 11:15:22 -0400140 if (!sk_tool_utils::copy_to(&copy, ct, source)) {
halcanaryb260d132015-12-09 10:21:59 -0800141 ERRORF(r, "SkBitmap::copy failed %d", (int)ct);
142 continue;
143 }
halcanaryb260d132015-12-09 10:21:59 -0800144 REPORTER_ASSERT(r, source.getColor(0, 0) == copy.getColor(0, 0));
145 }
146}
benjaminwagnera1bb8e02015-12-11 14:08:58 -0800147
148static void test_erasecolor_premul(skiatest::Reporter* reporter, SkColorType ct, SkColor input,
149 SkColor expected) {
150 SkBitmap bm;
151 bm.allocPixels(SkImageInfo::Make(1, 1, ct, kPremul_SkAlphaType));
152 bm.eraseColor(input);
halcanary7d571242016-02-24 17:59:16 -0800153 INFOF(reporter, "expected: %x actual: %x\n", expected, bm.getColor(0, 0));
benjaminwagnera1bb8e02015-12-11 14:08:58 -0800154 REPORTER_ASSERT(reporter, bm.getColor(0, 0) == expected);
155}
156
157/**
158 * This test checks that eraseColor premultiplies the color correctly.
159 */
160DEF_TEST(Bitmap_eraseColor_Premul, r) {
161 SkColor color = 0x80FF0080;
162 test_erasecolor_premul(r, kAlpha_8_SkColorType, color, 0x80000000);
163 test_erasecolor_premul(r, kRGB_565_SkColorType, color, 0xFF840042);
164 test_erasecolor_premul(r, kARGB_4444_SkColorType, color, 0x88FF0080);
165 test_erasecolor_premul(r, kRGBA_8888_SkColorType, color, color);
166 test_erasecolor_premul(r, kBGRA_8888_SkColorType, color, color);
167}
Hal Canary4cba3fe2016-12-07 14:59:27 -0500168
169// Test that SkBitmap::ComputeOpaque() is correct for various colortypes.
170DEF_TEST(Bitmap_compute_is_opaque, r) {
171 struct {
172 SkColorType fCT;
173 SkAlphaType fAT;
174 } types[] = {
175 { kGray_8_SkColorType, kOpaque_SkAlphaType },
176 { kAlpha_8_SkColorType, kPremul_SkAlphaType },
177 { kARGB_4444_SkColorType, kPremul_SkAlphaType },
178 { kRGB_565_SkColorType, kOpaque_SkAlphaType },
179 { kBGRA_8888_SkColorType, kPremul_SkAlphaType },
180 { kRGBA_8888_SkColorType, kPremul_SkAlphaType },
181 { kRGBA_F16_SkColorType, kPremul_SkAlphaType },
182 };
183 for (auto type : types) {
184 SkBitmap bm;
185 REPORTER_ASSERT(r, !SkBitmap::ComputeIsOpaque(bm));
186
187 bm.allocPixels(SkImageInfo::Make(13, 17, type.fCT, type.fAT));
188 bm.eraseColor(SkColorSetARGB(255, 10, 20, 30));
189 REPORTER_ASSERT(r, SkBitmap::ComputeIsOpaque(bm));
190
191 bm.eraseColor(SkColorSetARGB(128, 255, 255, 255));
192 bool isOpaque = SkBitmap::ComputeIsOpaque(bm);
193 bool shouldBeOpaque = (type.fAT == kOpaque_SkAlphaType);
194 REPORTER_ASSERT(r, isOpaque == shouldBeOpaque);
195 }
196}
197
198// Test that erase+getColor round trips with RGBA_F16 pixels.
199DEF_TEST(Bitmap_erase_f16_erase_getColor, r) {
200 SkRandom random;
201 SkPixmap pm;
202 SkBitmap bm;
203 bm.allocPixels(SkImageInfo::Make(1, 1, kRGBA_F16_SkColorType, kPremul_SkAlphaType));
204 REPORTER_ASSERT(r, bm.peekPixels(&pm));
205 for (unsigned i = 0; i < 0x100; ++i) {
206 // Test all possible values of blue component.
207 SkColor color1 = (SkColor)((random.nextU() & 0xFFFFFF00) | i);
208 // Test all possible values of alpha component.
209 SkColor color2 = (SkColor)((random.nextU() & 0x00FFFFFF) | (i << 24));
210 for (SkColor color : {color1, color2}) {
211 pm.erase(color);
212 if (SkColorGetA(color) != 0) {
213 REPORTER_ASSERT(r, color == pm.getColor(0, 0));
214 } else {
215 REPORTER_ASSERT(r, 0 == SkColorGetA(pm.getColor(0, 0)));
216 }
217 }
218 }
219}
220