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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 | 9 |
10 namespace cc { | 10 namespace cc { |
11 | 11 |
12 int BitsPerPixel(ResourceFormat format) { | 12 int BitsPerPixel(ResourceFormat format) { |
13 switch (format) { | 13 switch (format) { |
14 case BGRA_8888: | 14 case BGRA_8888: |
15 case RGBA_8888: | 15 case RGBA_8888: |
| 16 case LUMINANCE_F32: |
16 return 32; | 17 return 32; |
17 case RGBA_4444: | 18 case RGBA_4444: |
18 case RGB_565: | 19 case RGB_565: |
| 20 case RG_88: |
19 case LUMINANCE_F16: | 21 case LUMINANCE_F16: |
20 return 16; | 22 return 16; |
21 case ALPHA_8: | 23 case ALPHA_8: |
22 case LUMINANCE_8: | 24 case LUMINANCE_8: |
23 case RED_8: | 25 case RED_8: |
24 return 8; | 26 return 8; |
25 case ETC1: | 27 case ETC1: |
26 return 4; | 28 return 4; |
27 } | 29 } |
28 NOTREACHED(); | 30 NOTREACHED(); |
29 return 0; | 31 return 0; |
30 } | 32 } |
31 | 33 |
32 GLenum GLDataType(ResourceFormat format) { | 34 GLenum GLDataType(ResourceFormat format) { |
33 DCHECK_LE(format, RESOURCE_FORMAT_MAX); | 35 DCHECK_LE(format, RESOURCE_FORMAT_MAX); |
34 static const GLenum format_gl_data_type[] = { | 36 static const GLenum format_gl_data_type[] = { |
35 GL_UNSIGNED_BYTE, // RGBA_8888 | 37 GL_UNSIGNED_BYTE, // RGBA_8888 |
36 GL_UNSIGNED_SHORT_4_4_4_4, // RGBA_4444 | 38 GL_UNSIGNED_SHORT_4_4_4_4, // RGBA_4444 |
37 GL_UNSIGNED_BYTE, // BGRA_8888 | 39 GL_UNSIGNED_BYTE, // BGRA_8888 |
38 GL_UNSIGNED_BYTE, // ALPHA_8 | 40 GL_UNSIGNED_BYTE, // ALPHA_8 |
39 GL_UNSIGNED_BYTE, // LUMINANCE_8 | 41 GL_UNSIGNED_BYTE, // LUMINANCE_8 |
40 GL_UNSIGNED_SHORT_5_6_5, // RGB_565, | 42 GL_UNSIGNED_SHORT_5_6_5, // RGB_565, |
41 GL_UNSIGNED_BYTE, // ETC1 | 43 GL_UNSIGNED_BYTE, // ETC1 |
42 GL_UNSIGNED_BYTE, // RED_8 | 44 GL_UNSIGNED_BYTE, // RED_8 |
43 GL_HALF_FLOAT_OES, // LUMINANCE_F16 | 45 GL_HALF_FLOAT_OES, // LUMINANCE_F16 |
| 46 GL_FLOAT, // LUMINANCE_F32 |
| 47 GL_UNSIGNED_BYTE, // RG_88 |
44 }; | 48 }; |
45 static_assert(arraysize(format_gl_data_type) == (RESOURCE_FORMAT_MAX + 1), | 49 static_assert(arraysize(format_gl_data_type) == (RESOURCE_FORMAT_MAX + 1), |
46 "format_gl_data_type does not handle all cases."); | 50 "format_gl_data_type does not handle all cases."); |
47 | 51 |
48 return format_gl_data_type[format]; | 52 return format_gl_data_type[format]; |
49 } | 53 } |
50 | 54 |
51 GLenum GLDataFormat(ResourceFormat format) { | 55 GLenum GLDataFormat(ResourceFormat format) { |
52 DCHECK_LE(format, RESOURCE_FORMAT_MAX); | 56 DCHECK_LE(format, RESOURCE_FORMAT_MAX); |
53 static const GLenum format_gl_data_format[] = { | 57 static const GLenum format_gl_data_format[] = { |
54 GL_RGBA, // RGBA_8888 | 58 GL_RGBA, // RGBA_8888 |
55 GL_RGBA, // RGBA_4444 | 59 GL_RGBA, // RGBA_4444 |
56 GL_BGRA_EXT, // BGRA_8888 | 60 GL_BGRA_EXT, // BGRA_8888 |
57 GL_ALPHA, // ALPHA_8 | 61 GL_ALPHA, // ALPHA_8 |
58 GL_LUMINANCE, // LUMINANCE_8 | 62 GL_LUMINANCE, // LUMINANCE_8 |
59 GL_RGB, // RGB_565 | 63 GL_RGB, // RGB_565 |
60 GL_ETC1_RGB8_OES, // ETC1 | 64 GL_ETC1_RGB8_OES, // ETC1 |
61 GL_RED_EXT, // RED_8 | 65 GL_RED_EXT, // RED_8 |
62 GL_LUMINANCE, // LUMINANCE_F16 | 66 GL_LUMINANCE, // LUMINANCE_F16 |
| 67 GL_LUMINANCE, // LUMINANCE_F32 |
| 68 GL_RG_EXT, // RG_88 |
63 }; | 69 }; |
64 static_assert(arraysize(format_gl_data_format) == (RESOURCE_FORMAT_MAX + 1), | 70 static_assert(arraysize(format_gl_data_format) == (RESOURCE_FORMAT_MAX + 1), |
65 "format_gl_data_format does not handle all cases."); | 71 "format_gl_data_format does not handle all cases."); |
66 return format_gl_data_format[format]; | 72 return format_gl_data_format[format]; |
67 } | 73 } |
68 | 74 |
69 GLenum GLInternalFormat(ResourceFormat format) { | 75 GLenum GLInternalFormat(ResourceFormat format) { |
70 // In GLES2, the internal format must match the texture format. (It no longer | 76 // In GLES2, the internal format must match the texture format. (It no longer |
71 // is true in GLES3, however it still holds for the BGRA extension.) | 77 // is true in GLES3, however it still holds for the BGRA extension.) |
72 return GLDataFormat(format); | 78 return GLDataFormat(format); |
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83 static const GLenum format_gl_data_format[] = { | 89 static const GLenum format_gl_data_format[] = { |
84 GL_RGBA, // RGBA_8888 | 90 GL_RGBA, // RGBA_8888 |
85 GL_RGBA, // RGBA_4444 | 91 GL_RGBA, // RGBA_4444 |
86 GL_RGBA, // BGRA_8888 | 92 GL_RGBA, // BGRA_8888 |
87 GL_ALPHA, // ALPHA_8 | 93 GL_ALPHA, // ALPHA_8 |
88 GL_LUMINANCE, // LUMINANCE_8 | 94 GL_LUMINANCE, // LUMINANCE_8 |
89 GL_RGB, // RGB_565 | 95 GL_RGB, // RGB_565 |
90 GL_RGB, // ETC1 | 96 GL_RGB, // ETC1 |
91 GL_LUMINANCE, // RED_8 | 97 GL_LUMINANCE, // RED_8 |
92 GL_LUMINANCE, // LUMINANCE_F16 | 98 GL_LUMINANCE, // LUMINANCE_F16 |
| 99 GL_LUMINANCE, // LUMINANCE_F32 |
| 100 GL_RG_EXT, // RG_88 |
93 }; | 101 }; |
94 static_assert(arraysize(format_gl_data_format) == (RESOURCE_FORMAT_MAX + 1), | 102 static_assert(arraysize(format_gl_data_format) == (RESOURCE_FORMAT_MAX + 1), |
95 "format_gl_data_format does not handle all cases."); | 103 "format_gl_data_format does not handle all cases."); |
96 return format_gl_data_format[format]; | 104 return format_gl_data_format[format]; |
97 } | 105 } |
98 | 106 |
99 gfx::BufferFormat BufferFormat(ResourceFormat format) { | 107 gfx::BufferFormat BufferFormat(ResourceFormat format) { |
100 switch (format) { | 108 switch (format) { |
101 case BGRA_8888: | 109 case BGRA_8888: |
102 return gfx::BufferFormat::BGRA_8888; | 110 return gfx::BufferFormat::BGRA_8888; |
103 case RED_8: | 111 case RED_8: |
104 return gfx::BufferFormat::R_8; | 112 return gfx::BufferFormat::R_8; |
105 case RGBA_4444: | 113 case RGBA_4444: |
106 return gfx::BufferFormat::RGBA_4444; | 114 return gfx::BufferFormat::RGBA_4444; |
107 case RGBA_8888: | 115 case RGBA_8888: |
108 return gfx::BufferFormat::RGBA_8888; | 116 return gfx::BufferFormat::RGBA_8888; |
109 case ETC1: | 117 case ETC1: |
110 return gfx::BufferFormat::ETC1; | 118 return gfx::BufferFormat::ETC1; |
111 case ALPHA_8: | 119 case ALPHA_8: |
112 case LUMINANCE_8: | 120 case LUMINANCE_8: |
113 case RGB_565: | 121 case RGB_565: |
114 case LUMINANCE_F16: | 122 case LUMINANCE_F16: |
| 123 case LUMINANCE_F32: |
| 124 case RG_88: |
115 break; | 125 break; |
116 } | 126 } |
117 NOTREACHED(); | 127 NOTREACHED(); |
118 return gfx::BufferFormat::RGBA_8888; | 128 return gfx::BufferFormat::RGBA_8888; |
119 } | 129 } |
120 | 130 |
121 bool IsResourceFormatCompressed(ResourceFormat format) { | 131 bool IsResourceFormatCompressed(ResourceFormat format) { |
122 return format == ETC1; | 132 return format == ETC1; |
123 } | 133 } |
124 | 134 |
125 bool DoesResourceFormatSupportAlpha(ResourceFormat format) { | 135 bool DoesResourceFormatSupportAlpha(ResourceFormat format) { |
126 switch (format) { | 136 switch (format) { |
127 case RGBA_4444: | 137 case RGBA_4444: |
128 case RGBA_8888: | 138 case RGBA_8888: |
129 case BGRA_8888: | 139 case BGRA_8888: |
130 case ALPHA_8: | 140 case ALPHA_8: |
131 return true; | 141 return true; |
132 case LUMINANCE_8: | 142 case LUMINANCE_8: |
133 case RGB_565: | 143 case RGB_565: |
134 case ETC1: | 144 case ETC1: |
135 case RED_8: | 145 case RED_8: |
136 case LUMINANCE_F16: | 146 case LUMINANCE_F16: |
| 147 case LUMINANCE_F32: |
| 148 case RG_88: |
137 return false; | 149 return false; |
138 } | 150 } |
139 NOTREACHED(); | 151 NOTREACHED(); |
140 return false; | 152 return false; |
141 } | 153 } |
142 | 154 |
143 } // namespace cc | 155 } // namespace cc |
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