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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "ui/gfx/buffer_format_util.h" | 5 #include "ui/gfx/buffer_format_util.h" |
6 | 6 |
7 #include "base/logging.h" | 7 #include "base/logging.h" |
8 #include "base/macros.h" | 8 #include "base/macros.h" |
9 #include "base/numerics/safe_math.h" | 9 #include "base/numerics/safe_math.h" |
10 | 10 |
11 namespace gfx { | 11 namespace gfx { |
12 namespace { | 12 namespace { |
13 | 13 |
14 const BufferFormat kBufferFormats[] = { | 14 const BufferFormat kBufferFormats[] = {BufferFormat::ATC, |
15 BufferFormat::ATC, BufferFormat::ATCIA, | 15 BufferFormat::ATCIA, |
16 BufferFormat::DXT1, BufferFormat::DXT5, | 16 BufferFormat::DXT1, |
17 BufferFormat::ETC1, BufferFormat::R_8, | 17 BufferFormat::DXT5, |
18 BufferFormat::RG_88, BufferFormat::BGR_565, | 18 BufferFormat::ETC1, |
19 BufferFormat::RGBA_4444, BufferFormat::RGBX_8888, | 19 BufferFormat::R_8, |
20 BufferFormat::RGBA_8888, BufferFormat::BGRX_8888, | 20 BufferFormat::R_16, |
21 BufferFormat::BGRA_8888, BufferFormat::RGBA_F16, | 21 BufferFormat::RG_88, |
22 BufferFormat::UYVY_422, BufferFormat::YUV_420_BIPLANAR, | 22 BufferFormat::BGR_565, |
23 BufferFormat::YVU_420}; | 23 BufferFormat::RGBA_4444, |
| 24 BufferFormat::RGBX_8888, |
| 25 BufferFormat::RGBA_8888, |
| 26 BufferFormat::BGRX_8888, |
| 27 BufferFormat::BGRA_8888, |
| 28 BufferFormat::RGBA_F16, |
| 29 BufferFormat::UYVY_422, |
| 30 BufferFormat::YUV_420_BIPLANAR, |
| 31 BufferFormat::YVU_420}; |
24 | 32 |
25 static_assert(arraysize(kBufferFormats) == | 33 static_assert(arraysize(kBufferFormats) == |
26 (static_cast<int>(BufferFormat::LAST) + 1), | 34 (static_cast<int>(BufferFormat::LAST) + 1), |
27 "BufferFormat::LAST must be last value of kBufferFormats"); | 35 "BufferFormat::LAST must be last value of kBufferFormats"); |
28 | 36 |
29 | 37 |
30 bool RowSizeForBufferFormatChecked( | 38 bool RowSizeForBufferFormatChecked( |
31 size_t width, BufferFormat format, size_t plane, size_t* size_in_bytes) { | 39 size_t width, BufferFormat format, size_t plane, size_t* size_in_bytes) { |
32 base::CheckedNumeric<size_t> checked_size = width; | 40 base::CheckedNumeric<size_t> checked_size = width; |
33 switch (format) { | 41 switch (format) { |
34 case BufferFormat::ATCIA: | 42 case BufferFormat::ATCIA: |
35 case BufferFormat::DXT5: | 43 case BufferFormat::DXT5: |
36 DCHECK_EQ(0u, plane); | 44 DCHECK_EQ(0u, plane); |
37 *size_in_bytes = width; | 45 *size_in_bytes = width; |
38 return true; | 46 return true; |
39 case BufferFormat::ATC: | 47 case BufferFormat::ATC: |
40 case BufferFormat::DXT1: | 48 case BufferFormat::DXT1: |
41 case BufferFormat::ETC1: | 49 case BufferFormat::ETC1: |
42 DCHECK_EQ(0u, plane); | 50 DCHECK_EQ(0u, plane); |
43 DCHECK_EQ(0u, width % 2); | 51 DCHECK_EQ(0u, width % 2); |
44 *size_in_bytes = width / 2; | 52 *size_in_bytes = width / 2; |
45 return true; | 53 return true; |
46 case BufferFormat::R_8: | 54 case BufferFormat::R_8: |
47 checked_size += 3; | 55 checked_size += 3; |
48 if (!checked_size.IsValid()) | 56 if (!checked_size.IsValid()) |
49 return false; | 57 return false; |
50 *size_in_bytes = (checked_size & ~0x3).ValueOrDie(); | 58 *size_in_bytes = (checked_size & ~0x3).ValueOrDie(); |
51 return true; | 59 return true; |
| 60 case BufferFormat::R_16: |
52 case BufferFormat::RG_88: | 61 case BufferFormat::RG_88: |
53 case BufferFormat::BGR_565: | 62 case BufferFormat::BGR_565: |
54 case BufferFormat::RGBA_4444: | 63 case BufferFormat::RGBA_4444: |
55 case BufferFormat::UYVY_422: | 64 case BufferFormat::UYVY_422: |
56 checked_size *= 2; | 65 checked_size *= 2; |
57 checked_size += 3; | 66 checked_size += 3; |
58 if (!checked_size.IsValid()) | 67 if (!checked_size.IsValid()) |
59 return false; | 68 return false; |
60 *size_in_bytes = (checked_size & ~0x3).ValueOrDie(); | 69 *size_in_bytes = (checked_size & ~0x3).ValueOrDie(); |
61 return true; | 70 return true; |
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95 } | 104 } |
96 | 105 |
97 size_t NumberOfPlanesForBufferFormat(BufferFormat format) { | 106 size_t NumberOfPlanesForBufferFormat(BufferFormat format) { |
98 switch (format) { | 107 switch (format) { |
99 case BufferFormat::ATC: | 108 case BufferFormat::ATC: |
100 case BufferFormat::ATCIA: | 109 case BufferFormat::ATCIA: |
101 case BufferFormat::DXT1: | 110 case BufferFormat::DXT1: |
102 case BufferFormat::DXT5: | 111 case BufferFormat::DXT5: |
103 case BufferFormat::ETC1: | 112 case BufferFormat::ETC1: |
104 case BufferFormat::R_8: | 113 case BufferFormat::R_8: |
| 114 case BufferFormat::R_16: |
105 case BufferFormat::RG_88: | 115 case BufferFormat::RG_88: |
106 case BufferFormat::BGR_565: | 116 case BufferFormat::BGR_565: |
107 case BufferFormat::RGBA_4444: | 117 case BufferFormat::RGBA_4444: |
108 case BufferFormat::RGBX_8888: | 118 case BufferFormat::RGBX_8888: |
109 case BufferFormat::RGBA_8888: | 119 case BufferFormat::RGBA_8888: |
110 case BufferFormat::BGRX_8888: | 120 case BufferFormat::BGRX_8888: |
111 case BufferFormat::BGRA_8888: | 121 case BufferFormat::BGRA_8888: |
112 case BufferFormat::RGBA_F16: | 122 case BufferFormat::RGBA_F16: |
113 case BufferFormat::UYVY_422: | 123 case BufferFormat::UYVY_422: |
114 return 1; | 124 return 1; |
115 case BufferFormat::YUV_420_BIPLANAR: | 125 case BufferFormat::YUV_420_BIPLANAR: |
116 return 2; | 126 return 2; |
117 case BufferFormat::YVU_420: | 127 case BufferFormat::YVU_420: |
118 return 3; | 128 return 3; |
119 } | 129 } |
120 NOTREACHED(); | 130 NOTREACHED(); |
121 return 0; | 131 return 0; |
122 } | 132 } |
123 | 133 |
124 size_t SubsamplingFactorForBufferFormat(BufferFormat format, size_t plane) { | 134 size_t SubsamplingFactorForBufferFormat(BufferFormat format, size_t plane) { |
125 switch (format) { | 135 switch (format) { |
126 case BufferFormat::ATC: | 136 case BufferFormat::ATC: |
127 case BufferFormat::ATCIA: | 137 case BufferFormat::ATCIA: |
128 case BufferFormat::DXT1: | 138 case BufferFormat::DXT1: |
129 case BufferFormat::DXT5: | 139 case BufferFormat::DXT5: |
130 case BufferFormat::ETC1: | 140 case BufferFormat::ETC1: |
131 case BufferFormat::R_8: | 141 case BufferFormat::R_8: |
| 142 case BufferFormat::R_16: |
132 case BufferFormat::RG_88: | 143 case BufferFormat::RG_88: |
133 case BufferFormat::BGR_565: | 144 case BufferFormat::BGR_565: |
134 case BufferFormat::RGBA_4444: | 145 case BufferFormat::RGBA_4444: |
135 case BufferFormat::RGBX_8888: | 146 case BufferFormat::RGBX_8888: |
136 case BufferFormat::RGBA_8888: | 147 case BufferFormat::RGBA_8888: |
137 case BufferFormat::BGRX_8888: | 148 case BufferFormat::BGRX_8888: |
138 case BufferFormat::BGRA_8888: | 149 case BufferFormat::BGRA_8888: |
139 case BufferFormat::RGBA_F16: | 150 case BufferFormat::RGBA_F16: |
140 case BufferFormat::UYVY_422: | 151 case BufferFormat::UYVY_422: |
141 return 1; | 152 return 1; |
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194 BufferFormat format, | 205 BufferFormat format, |
195 size_t plane) { | 206 size_t plane) { |
196 DCHECK_LT(plane, gfx::NumberOfPlanesForBufferFormat(format)); | 207 DCHECK_LT(plane, gfx::NumberOfPlanesForBufferFormat(format)); |
197 switch (format) { | 208 switch (format) { |
198 case BufferFormat::ATC: | 209 case BufferFormat::ATC: |
199 case BufferFormat::ATCIA: | 210 case BufferFormat::ATCIA: |
200 case BufferFormat::DXT1: | 211 case BufferFormat::DXT1: |
201 case BufferFormat::DXT5: | 212 case BufferFormat::DXT5: |
202 case BufferFormat::ETC1: | 213 case BufferFormat::ETC1: |
203 case BufferFormat::R_8: | 214 case BufferFormat::R_8: |
| 215 case BufferFormat::R_16: |
204 case BufferFormat::RG_88: | 216 case BufferFormat::RG_88: |
205 case BufferFormat::BGR_565: | 217 case BufferFormat::BGR_565: |
206 case BufferFormat::RGBA_4444: | 218 case BufferFormat::RGBA_4444: |
207 case BufferFormat::RGBX_8888: | 219 case BufferFormat::RGBX_8888: |
208 case BufferFormat::RGBA_8888: | 220 case BufferFormat::RGBA_8888: |
209 case BufferFormat::BGRX_8888: | 221 case BufferFormat::BGRX_8888: |
210 case BufferFormat::BGRA_8888: | 222 case BufferFormat::BGRA_8888: |
211 case BufferFormat::RGBA_F16: | 223 case BufferFormat::RGBA_F16: |
212 case BufferFormat::UYVY_422: | 224 case BufferFormat::UYVY_422: |
213 return 0; | 225 return 0; |
214 case BufferFormat::YVU_420: { | 226 case BufferFormat::YVU_420: { |
215 static size_t offset_in_2x2_sub_sampling_sizes[] = {0, 4, 5}; | 227 static size_t offset_in_2x2_sub_sampling_sizes[] = {0, 4, 5}; |
216 DCHECK_LT(plane, arraysize(offset_in_2x2_sub_sampling_sizes)); | 228 DCHECK_LT(plane, arraysize(offset_in_2x2_sub_sampling_sizes)); |
217 return offset_in_2x2_sub_sampling_sizes[plane] * | 229 return offset_in_2x2_sub_sampling_sizes[plane] * |
218 (size.width() / 2 + size.height() / 2); | 230 (size.width() / 2 + size.height() / 2); |
219 } | 231 } |
220 case gfx::BufferFormat::YUV_420_BIPLANAR: { | 232 case gfx::BufferFormat::YUV_420_BIPLANAR: { |
221 static size_t offset_in_2x2_sub_sampling_sizes[] = {0, 4}; | 233 static size_t offset_in_2x2_sub_sampling_sizes[] = {0, 4}; |
222 DCHECK_LT(plane, arraysize(offset_in_2x2_sub_sampling_sizes)); | 234 DCHECK_LT(plane, arraysize(offset_in_2x2_sub_sampling_sizes)); |
223 return offset_in_2x2_sub_sampling_sizes[plane] * | 235 return offset_in_2x2_sub_sampling_sizes[plane] * |
224 (size.width() / 2 + size.height() / 2); | 236 (size.width() / 2 + size.height() / 2); |
225 } | 237 } |
226 } | 238 } |
227 NOTREACHED(); | 239 NOTREACHED(); |
228 return 0; | 240 return 0; |
229 } | 241 } |
230 | 242 |
231 } // namespace gfx | 243 } // namespace gfx |
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