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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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 "cc/resources/resource_format.h" | 5 #include "cc/resources/resource_format.h" |
6 | 6 |
7 #include "third_party/khronos/GLES2/gl2.h" | 7 #include "third_party/khronos/GLES2/gl2.h" |
8 #include "third_party/khronos/GLES2/gl2ext.h" | 8 #include "third_party/khronos/GLES2/gl2ext.h" |
9 #include "ui/gfx/gpu_memory_buffer.h" | 9 #include "ui/gfx/gpu_memory_buffer.h" |
10 | 10 |
11 namespace cc { | 11 namespace cc { |
12 | 12 |
13 int BitsPerPixel(ResourceFormat format) { | 13 int BitsPerPixel(ResourceFormat format) { |
14 switch (format) { | 14 switch (format) { |
15 case BGRA_8888: | 15 case BGRA_8888: |
16 case RGBA_8888: | 16 case RGBA_8888: |
17 return 32; | 17 return 32; |
18 case RGBA_4444: | 18 case RGBA_4444: |
19 case RGB_565: | 19 case RGB_565: |
20 case LUMINANCE_F16: | 20 case LUMINANCE_F16: |
| 21 case RG_88: |
21 return 16; | 22 return 16; |
22 case ALPHA_8: | 23 case ALPHA_8: |
23 case LUMINANCE_8: | 24 case LUMINANCE_8: |
24 case RED_8: | 25 case RED_8: |
25 return 8; | 26 return 8; |
26 case ETC1: | 27 case ETC1: |
27 return 4; | 28 return 4; |
28 } | 29 } |
29 NOTREACHED(); | 30 NOTREACHED(); |
30 return 0; | 31 return 0; |
31 } | 32 } |
32 | 33 |
33 GLenum GLDataType(ResourceFormat format) { | 34 GLenum GLDataType(ResourceFormat format) { |
34 DCHECK_LE(format, RESOURCE_FORMAT_MAX); | 35 DCHECK_LE(format, RESOURCE_FORMAT_MAX); |
35 static const GLenum format_gl_data_type[] = { | 36 static const GLenum format_gl_data_type[] = { |
36 GL_UNSIGNED_BYTE, // RGBA_8888 | 37 GL_UNSIGNED_BYTE, // RGBA_8888 |
37 GL_UNSIGNED_SHORT_4_4_4_4, // RGBA_4444 | 38 GL_UNSIGNED_SHORT_4_4_4_4, // RGBA_4444 |
38 GL_UNSIGNED_BYTE, // BGRA_8888 | 39 GL_UNSIGNED_BYTE, // BGRA_8888 |
39 GL_UNSIGNED_BYTE, // ALPHA_8 | 40 GL_UNSIGNED_BYTE, // ALPHA_8 |
40 GL_UNSIGNED_BYTE, // LUMINANCE_8 | 41 GL_UNSIGNED_BYTE, // LUMINANCE_8 |
41 GL_UNSIGNED_SHORT_5_6_5, // RGB_565, | 42 GL_UNSIGNED_SHORT_5_6_5, // RGB_565, |
42 GL_UNSIGNED_BYTE, // ETC1 | 43 GL_UNSIGNED_BYTE, // ETC1 |
43 GL_UNSIGNED_BYTE, // RED_8 | 44 GL_UNSIGNED_BYTE, // RED_8 |
44 GL_HALF_FLOAT_OES, // LUMINANCE_F16 | 45 GL_HALF_FLOAT_OES, // LUMINANCE_F16 |
| 46 GL_UNSIGNED_BYTE, // RG_88 |
45 }; | 47 }; |
46 static_assert(arraysize(format_gl_data_type) == (RESOURCE_FORMAT_MAX + 1), | 48 static_assert(arraysize(format_gl_data_type) == (RESOURCE_FORMAT_MAX + 1), |
47 "format_gl_data_type does not handle all cases."); | 49 "format_gl_data_type does not handle all cases."); |
48 | 50 |
49 return format_gl_data_type[format]; | 51 return format_gl_data_type[format]; |
50 } | 52 } |
51 | 53 |
52 GLenum GLDataFormat(ResourceFormat format) { | 54 GLenum GLDataFormat(ResourceFormat format) { |
53 DCHECK_LE(format, RESOURCE_FORMAT_MAX); | 55 DCHECK_LE(format, RESOURCE_FORMAT_MAX); |
54 static const GLenum format_gl_data_format[] = { | 56 static const GLenum format_gl_data_format[] = { |
55 GL_RGBA, // RGBA_8888 | 57 GL_RGBA, // RGBA_8888 |
56 GL_RGBA, // RGBA_4444 | 58 GL_RGBA, // RGBA_4444 |
57 GL_BGRA_EXT, // BGRA_8888 | 59 GL_BGRA_EXT, // BGRA_8888 |
58 GL_ALPHA, // ALPHA_8 | 60 GL_ALPHA, // ALPHA_8 |
59 GL_LUMINANCE, // LUMINANCE_8 | 61 GL_LUMINANCE, // LUMINANCE_8 |
60 GL_RGB, // RGB_565 | 62 GL_RGB, // RGB_565 |
61 GL_ETC1_RGB8_OES, // ETC1 | 63 GL_ETC1_RGB8_OES, // ETC1 |
62 GL_RED_EXT, // RED_8 | 64 GL_RED_EXT, // RED_8 |
63 GL_LUMINANCE, // LUMINANCE_F16 | 65 GL_LUMINANCE, // LUMINANCE_F16 |
| 66 GL_RG_EXT, // RG_88 |
64 }; | 67 }; |
65 static_assert(arraysize(format_gl_data_format) == (RESOURCE_FORMAT_MAX + 1), | 68 static_assert(arraysize(format_gl_data_format) == (RESOURCE_FORMAT_MAX + 1), |
66 "format_gl_data_format does not handle all cases."); | 69 "format_gl_data_format does not handle all cases."); |
67 return format_gl_data_format[format]; | 70 return format_gl_data_format[format]; |
68 } | 71 } |
69 | 72 |
70 GLenum GLInternalFormat(ResourceFormat format) { | 73 GLenum GLInternalFormat(ResourceFormat format) { |
71 // In GLES2, the internal format must match the texture format. (It no longer | 74 // In GLES2, the internal format must match the texture format. (It no longer |
72 // is true in GLES3, however it still holds for the BGRA extension.) | 75 // is true in GLES3, however it still holds for the BGRA extension.) |
73 return GLDataFormat(format); | 76 return GLDataFormat(format); |
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84 static const GLenum format_gl_data_format[] = { | 87 static const GLenum format_gl_data_format[] = { |
85 GL_RGBA, // RGBA_8888 | 88 GL_RGBA, // RGBA_8888 |
86 GL_RGBA, // RGBA_4444 | 89 GL_RGBA, // RGBA_4444 |
87 GL_RGBA, // BGRA_8888 | 90 GL_RGBA, // BGRA_8888 |
88 GL_ALPHA, // ALPHA_8 | 91 GL_ALPHA, // ALPHA_8 |
89 GL_LUMINANCE, // LUMINANCE_8 | 92 GL_LUMINANCE, // LUMINANCE_8 |
90 GL_RGB, // RGB_565 | 93 GL_RGB, // RGB_565 |
91 GL_RGB, // ETC1 | 94 GL_RGB, // ETC1 |
92 GL_LUMINANCE, // RED_8 | 95 GL_LUMINANCE, // RED_8 |
93 GL_LUMINANCE, // LUMINANCE_F16 | 96 GL_LUMINANCE, // LUMINANCE_F16 |
| 97 GL_RG8_EXT, // RG_88 |
94 }; | 98 }; |
95 static_assert(arraysize(format_gl_data_format) == (RESOURCE_FORMAT_MAX + 1), | 99 static_assert(arraysize(format_gl_data_format) == (RESOURCE_FORMAT_MAX + 1), |
96 "format_gl_data_format does not handle all cases."); | 100 "format_gl_data_format does not handle all cases."); |
97 return format_gl_data_format[format]; | 101 return format_gl_data_format[format]; |
98 } | 102 } |
99 | 103 |
100 gfx::BufferFormat BufferFormat(ResourceFormat format) { | 104 gfx::BufferFormat BufferFormat(ResourceFormat format) { |
101 switch (format) { | 105 switch (format) { |
102 case BGRA_8888: | 106 case BGRA_8888: |
103 return gfx::BufferFormat::BGRA_8888; | 107 return gfx::BufferFormat::BGRA_8888; |
104 case RED_8: | 108 case RED_8: |
105 return gfx::BufferFormat::R_8; | 109 return gfx::BufferFormat::R_8; |
| 110 case RG_88: |
| 111 return gfx::BufferFormat::RG_88; |
106 case RGBA_4444: | 112 case RGBA_4444: |
107 return gfx::BufferFormat::RGBA_4444; | 113 return gfx::BufferFormat::RGBA_4444; |
108 case RGBA_8888: | 114 case RGBA_8888: |
109 return gfx::BufferFormat::RGBA_8888; | 115 return gfx::BufferFormat::RGBA_8888; |
110 case ETC1: | 116 case ETC1: |
111 return gfx::BufferFormat::ETC1; | 117 return gfx::BufferFormat::ETC1; |
112 case ALPHA_8: | 118 case ALPHA_8: |
113 case LUMINANCE_8: | 119 case LUMINANCE_8: |
114 case RGB_565: | 120 case RGB_565: |
115 case LUMINANCE_F16: | 121 case LUMINANCE_F16: |
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128 case RGBA_4444: | 134 case RGBA_4444: |
129 case RGBA_8888: | 135 case RGBA_8888: |
130 case BGRA_8888: | 136 case BGRA_8888: |
131 case ALPHA_8: | 137 case ALPHA_8: |
132 return true; | 138 return true; |
133 case LUMINANCE_8: | 139 case LUMINANCE_8: |
134 case RGB_565: | 140 case RGB_565: |
135 case ETC1: | 141 case ETC1: |
136 case RED_8: | 142 case RED_8: |
137 case LUMINANCE_F16: | 143 case LUMINANCE_F16: |
| 144 case RG_88: |
138 return false; | 145 return false; |
139 } | 146 } |
140 NOTREACHED(); | 147 NOTREACHED(); |
141 return false; | 148 return false; |
142 } | 149 } |
143 | 150 |
144 } // namespace cc | 151 } // namespace cc |
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