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1 Name | 1 Name |
2 | 2 |
3 CHROMIUM_image | 3 CHROMIUM_image |
4 | 4 |
5 Name Strings | 5 Name Strings |
6 | 6 |
7 GL_CHROMIUM_image | 7 GL_CHROMIUM_image |
8 | 8 |
9 Version | 9 Version |
10 | 10 |
11 Last Modifed Date: Oct 7, 2014 | 11 Last Modifed Date: May 13, 2015 |
12 | 12 |
13 Dependencies | 13 Dependencies |
14 | 14 |
15 OpenGL ES 2.0 is required. | 15 OpenGL ES 2.0 is required. |
16 | 16 |
17 EXT_texture_format_BGRA8888 affects the definition of this extension. | 17 EXT_texture_format_BGRA8888 affects the definition of this extension. |
18 ARB_texture_rg affects the definition of this extension. | 18 ARB_texture_rg affects the definition of this extension. |
19 | 19 |
20 Overview | 20 Overview |
21 | 21 |
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38 GLenum internalformat) | 38 GLenum internalformat) |
39 | 39 |
40 Create an image from <buffer> with width equal to <width> and | 40 Create an image from <buffer> with width equal to <width> and |
41 height equal to <height> and format equal to <internalformat>. | 41 height equal to <height> and format equal to <internalformat>. |
42 | 42 |
43 Returns a unique identifier for the image that could be used in | 43 Returns a unique identifier for the image that could be used in |
44 subsequent operations. | 44 subsequent operations. |
45 | 45 |
46 INVALID_VALUE is generated if <width> or <height> is nonpositive. | 46 INVALID_VALUE is generated if <width> or <height> is nonpositive. |
47 | 47 |
48 INVALID_ENUM is generated if <internalformat> is not one of | 48 INVALID_VALUE is generated if <internalformat> is not one of |
49 R8, RGB, RGBA or BGRA_EXT. | 49 R8, RGB, RGBA, BGRA_EXT, ATC_RGB_AMD, ATC_RGBA_INTERPOLATED_ALPHA_AMD, |
| 50 COMPRESSED_RGB_S3TC_DXT1_EXT, COMPRESSED_RGBA_S3TC_DXT5_EXT or |
| 51 ETC1_RGB8_OES. |
50 | 52 |
51 void DestroyImageCHROMIUM(GLuint image_id) | 53 void DestroyImageCHROMIUM(GLuint image_id) |
52 | 54 |
53 Frees the image previously created by a call to CreateImageCHROMIUM. | 55 Frees the image previously created by a call to CreateImageCHROMIUM. |
54 | 56 |
55 INVALID_OPERATION is generated if <image_id> is not a valid image id. | 57 INVALID_OPERATION is generated if <image_id> is not a valid image id. |
56 | 58 |
57 Dependencies on EXT_texture_format_BGRA8888 | 59 Dependencies on EXT_texture_format_BGRA8888 |
58 | 60 |
59 If EXT_texture_format_BGRA8888 is not supported: | 61 If EXT_texture_format_BGRA8888 is not supported: |
60 * delete any reference to the BGRA_EXT format. | 62 * delete any reference to the BGRA_EXT format. |
61 | 63 |
62 Dependencies on ARB_texture_rg | 64 Dependencies on ARB_texture_rg |
63 | 65 |
64 If ARB_texture_rg is not supported: | 66 If ARB_texture_rg is not supported: |
65 * delete any reference to the R8 format. | 67 * delete any reference to the R8 format. |
66 | 68 |
| 69 Dependencies on AMD_compressed_ATC_texture |
| 70 |
| 71 If AMD_compressed_ATC_texture is not supported: |
| 72 * delete any reference to the ATC_RGB_AMD and |
| 73 ATC_RGBA_INTERPOLATED_ALPHA_AMD formats. |
| 74 |
| 75 Dependencies on EXT_texture_compression_s3tc |
| 76 |
| 77 If EXT_texture_compression_s3tc is not supported: |
| 78 * delete any reference to the COMPRESSED_RGB_S3TC_DXT1_EXT and |
| 79 COMPRESSED_RGBA_S3TC_DXT5_EXT formats. |
| 80 |
| 81 Dependencies on OES_compressed_ETC1_RGB8_texture |
| 82 |
| 83 If OES_compressed_ETC1_RGB8_texture is not supported: |
| 84 * delete any reference to the ETC1_RGB8_OES format. |
| 85 |
67 Errors | 86 Errors |
68 | 87 |
69 None. | 88 None. |
70 | 89 |
71 New State | 90 New State |
72 | 91 |
73 None. | 92 None. |
74 | 93 |
75 Revision History | 94 Revision History |
76 | 95 |
77 5/9/2013 Documented the extension | 96 5/9/2013 Documented the extension |
78 4/30/2014 Moved usage flag to creation function. | 97 4/30/2014 Moved usage flag to creation function. |
79 10/7/2014 Remove map/unmap API. | 98 10/7/2014 Remove map/unmap API. |
80 4/6/2015 Add BGRA_EXT format. | 99 4/6/2015 Add BGRA_EXT format. |
81 2/7/2015 Add R8 format. | 100 2/7/2015 Add R8 format. |
| 101 5/13/2015 Add compressed formats. |
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