blob: 439136df2d8ff5083e6df2555a3b4ef0ce8651e6 [file] [log] [blame]
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"
Ben Wagnere6b04a12018-03-09 14:41:36 -05009#include "SkColor.h"
10#include "SkImageInfo.h"
reed2ff257b2015-01-23 07:51:14 -080011#include "SkMallocPixelRef.h"
Ben Wagnere6b04a12018-03-09 14:41:36 -050012#include "SkPixelRef.h"
13#include "SkPixmap.h"
Hal Canary02e65df2016-12-07 16:21:53 -050014#include "SkRandom.h"
Ben Wagnere6b04a12018-03-09 14:41:36 -050015#include "SkRefCnt.h"
16#include "SkTypes.h"
halcanary@google.com44287342013-12-13 18:29:51 +000017#include "Test.h"
Matt Sarett68b8e3d2017-04-28 11:15:22 -040018#include "sk_tool_utils.h"
halcanary@google.com44287342013-12-13 18:29:51 +000019
reedcb674142015-06-05 06:58:22 -070020static void test_peekpixels(skiatest::Reporter* reporter) {
21 const SkImageInfo info = SkImageInfo::MakeN32Premul(10, 10);
22
23 SkPixmap pmap;
24 SkBitmap bm;
25
26 // empty should return false
halcanary96fcdcc2015-08-27 07:41:13 -070027 REPORTER_ASSERT(reporter, !bm.peekPixels(nullptr));
reedcb674142015-06-05 06:58:22 -070028 REPORTER_ASSERT(reporter, !bm.peekPixels(&pmap));
29
30 // no pixels should return false
31 bm.setInfo(SkImageInfo::MakeN32Premul(10, 10));
halcanary96fcdcc2015-08-27 07:41:13 -070032 REPORTER_ASSERT(reporter, !bm.peekPixels(nullptr));
reedcb674142015-06-05 06:58:22 -070033 REPORTER_ASSERT(reporter, !bm.peekPixels(&pmap));
34
35 // real pixels should return true
36 bm.allocPixels(info);
halcanary96fcdcc2015-08-27 07:41:13 -070037 REPORTER_ASSERT(reporter, bm.peekPixels(nullptr));
reedcb674142015-06-05 06:58:22 -070038 REPORTER_ASSERT(reporter, bm.peekPixels(&pmap));
39 REPORTER_ASSERT(reporter, pmap.info() == bm.info());
40 REPORTER_ASSERT(reporter, pmap.addr() == bm.getPixels());
41 REPORTER_ASSERT(reporter, pmap.rowBytes() == bm.rowBytes());
reedcb674142015-06-05 06:58:22 -070042}
43
reed2ff257b2015-01-23 07:51:14 -080044// https://code.google.com/p/chromium/issues/detail?id=446164
45static void test_bigalloc(skiatest::Reporter* reporter) {
46 const int width = 0x40000001;
47 const int height = 0x00000096;
48 const SkImageInfo info = SkImageInfo::MakeN32Premul(width, height);
49
50 SkBitmap bm;
51 REPORTER_ASSERT(reporter, !bm.tryAllocPixels(info));
52
Mike Reed086a4272017-07-18 10:53:11 -040053 sk_sp<SkPixelRef> pr = SkMallocPixelRef::MakeAllocate(info, info.minRowBytes());
reed2ff257b2015-01-23 07:51:14 -080054 REPORTER_ASSERT(reporter, !pr);
55}
56
reedf0aed972014-07-01 12:48:11 -070057static void test_allocpixels(skiatest::Reporter* reporter) {
58 const int width = 10;
59 const int height = 10;
60 const SkImageInfo info = SkImageInfo::MakeN32Premul(width, height);
61 const size_t explicitRowBytes = info.minRowBytes() + 24;
62
63 SkBitmap bm;
64 bm.setInfo(info);
65 REPORTER_ASSERT(reporter, info.minRowBytes() == bm.rowBytes());
66 bm.allocPixels();
67 REPORTER_ASSERT(reporter, info.minRowBytes() == bm.rowBytes());
68 bm.reset();
69 bm.allocPixels(info);
70 REPORTER_ASSERT(reporter, info.minRowBytes() == bm.rowBytes());
71
72 bm.setInfo(info, explicitRowBytes);
73 REPORTER_ASSERT(reporter, explicitRowBytes == bm.rowBytes());
74 bm.allocPixels();
75 REPORTER_ASSERT(reporter, explicitRowBytes == bm.rowBytes());
76 bm.reset();
77 bm.allocPixels(info, explicitRowBytes);
78 REPORTER_ASSERT(reporter, explicitRowBytes == bm.rowBytes());
79
80 bm.reset();
81 bm.setInfo(info, 0);
82 REPORTER_ASSERT(reporter, info.minRowBytes() == bm.rowBytes());
83 bm.reset();
84 bm.allocPixels(info, 0);
85 REPORTER_ASSERT(reporter, info.minRowBytes() == bm.rowBytes());
86
87 bm.reset();
88 bool success = bm.setInfo(info, info.minRowBytes() - 1); // invalid for 32bit
89 REPORTER_ASSERT(reporter, !success);
90 REPORTER_ASSERT(reporter, bm.isNull());
91}
92
reed@google.com48569642013-12-30 19:21:22 +000093static void test_bigwidth(skiatest::Reporter* reporter) {
94 SkBitmap bm;
95 int width = 1 << 29; // *4 will be the high-bit of 32bit int
96
commit-bot@chromium.orga3264e52014-05-30 13:26:10 +000097 SkImageInfo info = SkImageInfo::MakeA8(width, 1);
98 REPORTER_ASSERT(reporter, bm.setInfo(info));
reede5ea5002014-09-03 11:54:58 -070099 REPORTER_ASSERT(reporter, bm.setInfo(info.makeColorType(kRGB_565_SkColorType)));
skia.committer@gmail.comf5e1f632013-12-31 07:01:36 +0000100
reed@google.com48569642013-12-30 19:21:22 +0000101 // for a 4-byte config, this width will compute a rowbytes of 0x80000000,
102 // which does not fit in a int32_t. setConfig should detect this, and fail.
103
104 // TODO: perhaps skia can relax this, and only require that rowBytes fit
105 // in a uint32_t (or larger), but for now this is the constraint.
106
reede5ea5002014-09-03 11:54:58 -0700107 REPORTER_ASSERT(reporter, !bm.setInfo(info.makeColorType(kN32_SkColorType)));
reed@google.com48569642013-12-30 19:21:22 +0000108}
109
halcanary@google.com44287342013-12-13 18:29:51 +0000110/**
111 * This test contains basic sanity checks concerning bitmaps.
112 */
113DEF_TEST(Bitmap, reporter) {
halcanary@google.com44287342013-12-13 18:29:51 +0000114 // Zero-sized bitmaps are allowed
115 for (int width = 0; width < 2; ++width) {
116 for (int height = 0; height < 2; ++height) {
117 SkBitmap bm;
commit-bot@chromium.orga3264e52014-05-30 13:26:10 +0000118 bool setConf = bm.setInfo(SkImageInfo::MakeN32Premul(width, height));
halcanary@google.com44287342013-12-13 18:29:51 +0000119 REPORTER_ASSERT(reporter, setConf);
120 if (setConf) {
reed84825042014-09-02 12:50:45 -0700121 bm.allocPixels();
halcanary@google.com44287342013-12-13 18:29:51 +0000122 }
halcanary@google.com2af6c122013-12-13 19:25:21 +0000123 REPORTER_ASSERT(reporter, SkToBool(width & height) != bm.empty());
halcanary@google.com44287342013-12-13 18:29:51 +0000124 }
125 }
skia.committer@gmail.comf5e1f632013-12-31 07:01:36 +0000126
reed@google.com48569642013-12-30 19:21:22 +0000127 test_bigwidth(reporter);
reedf0aed972014-07-01 12:48:11 -0700128 test_allocpixels(reporter);
reed2ff257b2015-01-23 07:51:14 -0800129 test_bigalloc(reporter);
reedcb674142015-06-05 06:58:22 -0700130 test_peekpixels(reporter);
halcanary@google.com44287342013-12-13 18:29:51 +0000131}
halcanaryb260d132015-12-09 10:21:59 -0800132
133/**
134 * This test checks that getColor works for both swizzles.
135 */
136DEF_TEST(Bitmap_getColor_Swizzle, r) {
137 SkBitmap source;
138 source.allocN32Pixels(1,1);
139 source.eraseColor(SK_ColorRED);
140 SkColorType colorTypes[] = {
141 kRGBA_8888_SkColorType,
142 kBGRA_8888_SkColorType,
143 };
144 for (SkColorType ct : colorTypes) {
145 SkBitmap copy;
Matt Sarett68b8e3d2017-04-28 11:15:22 -0400146 if (!sk_tool_utils::copy_to(&copy, ct, source)) {
halcanaryb260d132015-12-09 10:21:59 -0800147 ERRORF(r, "SkBitmap::copy failed %d", (int)ct);
148 continue;
149 }
halcanaryb260d132015-12-09 10:21:59 -0800150 REPORTER_ASSERT(r, source.getColor(0, 0) == copy.getColor(0, 0));
151 }
152}
benjaminwagnera1bb8e02015-12-11 14:08:58 -0800153
154static void test_erasecolor_premul(skiatest::Reporter* reporter, SkColorType ct, SkColor input,
155 SkColor expected) {
156 SkBitmap bm;
157 bm.allocPixels(SkImageInfo::Make(1, 1, ct, kPremul_SkAlphaType));
158 bm.eraseColor(input);
halcanary7d571242016-02-24 17:59:16 -0800159 INFOF(reporter, "expected: %x actual: %x\n", expected, bm.getColor(0, 0));
benjaminwagnera1bb8e02015-12-11 14:08:58 -0800160 REPORTER_ASSERT(reporter, bm.getColor(0, 0) == expected);
161}
162
163/**
164 * This test checks that eraseColor premultiplies the color correctly.
165 */
166DEF_TEST(Bitmap_eraseColor_Premul, r) {
167 SkColor color = 0x80FF0080;
168 test_erasecolor_premul(r, kAlpha_8_SkColorType, color, 0x80000000);
169 test_erasecolor_premul(r, kRGB_565_SkColorType, color, 0xFF840042);
170 test_erasecolor_premul(r, kARGB_4444_SkColorType, color, 0x88FF0080);
171 test_erasecolor_premul(r, kRGBA_8888_SkColorType, color, color);
172 test_erasecolor_premul(r, kBGRA_8888_SkColorType, color, color);
173}
Hal Canary4cba3fe2016-12-07 14:59:27 -0500174
175// Test that SkBitmap::ComputeOpaque() is correct for various colortypes.
176DEF_TEST(Bitmap_compute_is_opaque, r) {
177 struct {
178 SkColorType fCT;
179 SkAlphaType fAT;
180 } types[] = {
181 { kGray_8_SkColorType, kOpaque_SkAlphaType },
182 { kAlpha_8_SkColorType, kPremul_SkAlphaType },
183 { kARGB_4444_SkColorType, kPremul_SkAlphaType },
184 { kRGB_565_SkColorType, kOpaque_SkAlphaType },
185 { kBGRA_8888_SkColorType, kPremul_SkAlphaType },
186 { kRGBA_8888_SkColorType, kPremul_SkAlphaType },
187 { kRGBA_F16_SkColorType, kPremul_SkAlphaType },
188 };
189 for (auto type : types) {
190 SkBitmap bm;
191 REPORTER_ASSERT(r, !SkBitmap::ComputeIsOpaque(bm));
192
193 bm.allocPixels(SkImageInfo::Make(13, 17, type.fCT, type.fAT));
194 bm.eraseColor(SkColorSetARGB(255, 10, 20, 30));
195 REPORTER_ASSERT(r, SkBitmap::ComputeIsOpaque(bm));
196
197 bm.eraseColor(SkColorSetARGB(128, 255, 255, 255));
198 bool isOpaque = SkBitmap::ComputeIsOpaque(bm);
199 bool shouldBeOpaque = (type.fAT == kOpaque_SkAlphaType);
200 REPORTER_ASSERT(r, isOpaque == shouldBeOpaque);
201 }
202}
203
204// Test that erase+getColor round trips with RGBA_F16 pixels.
205DEF_TEST(Bitmap_erase_f16_erase_getColor, r) {
206 SkRandom random;
207 SkPixmap pm;
208 SkBitmap bm;
209 bm.allocPixels(SkImageInfo::Make(1, 1, kRGBA_F16_SkColorType, kPremul_SkAlphaType));
210 REPORTER_ASSERT(r, bm.peekPixels(&pm));
211 for (unsigned i = 0; i < 0x100; ++i) {
212 // Test all possible values of blue component.
213 SkColor color1 = (SkColor)((random.nextU() & 0xFFFFFF00) | i);
214 // Test all possible values of alpha component.
215 SkColor color2 = (SkColor)((random.nextU() & 0x00FFFFFF) | (i << 24));
216 for (SkColor color : {color1, color2}) {
217 pm.erase(color);
218 if (SkColorGetA(color) != 0) {
219 REPORTER_ASSERT(r, color == pm.getColor(0, 0));
220 } else {
221 REPORTER_ASSERT(r, 0 == SkColorGetA(pm.getColor(0, 0)));
222 }
223 }
224 }
225}
226
Hal Canarycff9ab72018-01-12 11:09:54 -0500227// Make sure that the bitmap remains valid when pixelref is removed.
228DEF_TEST(Bitmap_clear_pixelref_keep_info, r) {
229 SkBitmap bm;
230 bm.allocPixels(SkImageInfo::MakeN32Premul(100,100));
231 bm.setPixelRef(nullptr, 0, 0);
232 SkDEBUGCODE(bm.validate();)
233}
234
Mike Klein18e9ba12018-03-06 08:43:22 -0500235// At the time of writing, SkBitmap::erase() works when the color is zero for all formats,
236// but some formats failed when the color is non-zero!
237DEF_TEST(Bitmap_erase, r) {
238 SkColorType colorTypes[] = {
239 kRGB_565_SkColorType,
240 kARGB_4444_SkColorType,
241 kRGB_888x_SkColorType,
242 kRGBA_8888_SkColorType,
243 kBGRA_8888_SkColorType,
244 kRGB_101010x_SkColorType,
245 kRGBA_1010102_SkColorType,
246 };
247
248 for (SkColorType ct : colorTypes) {
249 SkImageInfo info = SkImageInfo::Make(1,1, (SkColorType)ct, kPremul_SkAlphaType);
250
251 SkBitmap bm;
252 bm.allocPixels(info);
253
254 bm.eraseColor(0x00000000);
255 if (SkColorTypeIsAlwaysOpaque(ct)) {
256 REPORTER_ASSERT(r, bm.getColor(0,0) == 0xff000000);
257 } else {
258 REPORTER_ASSERT(r, bm.getColor(0,0) == 0x00000000);
259 }
260
261 bm.eraseColor(0xaabbccdd);
262 REPORTER_ASSERT(r, bm.getColor(0,0) != 0xff000000);
263 REPORTER_ASSERT(r, bm.getColor(0,0) != 0x00000000);
264 }
265}