| OLD | NEW |
| 1 Name | 1 Name |
| 2 | 2 |
| 3 CHROMIUM_gpu_memory_buffer_image | 3 CHROMIUM_gpu_memory_buffer_image |
| 4 | 4 |
| 5 Name Strings | 5 Name Strings |
| 6 | 6 |
| 7 GL_CHROMIUM_gpu_memory_buffer_image | 7 GL_CHROMIUM_gpu_memory_buffer_image |
| 8 | 8 |
| 9 Version | 9 Version |
| 10 | 10 |
| (...skipping 13 matching lines...) Expand all Loading... |
| 24 Issues | 24 Issues |
| 25 | 25 |
| 26 None | 26 None |
| 27 | 27 |
| 28 New Tokens | 28 New Tokens |
| 29 | 29 |
| 30 Accepted by the <usage> parameter of CreateGpuMemoryBufferImageCHROMIUM: | 30 Accepted by the <usage> parameter of CreateGpuMemoryBufferImageCHROMIUM: |
| 31 | 31 |
| 32 READ_WRITE_CHROMIUM 0x78F2 | 32 READ_WRITE_CHROMIUM 0x78F2 |
| 33 | 33 |
| 34 Accepted by the <param> parameter of GetImageivCHROMIUM: | |
| 35 | |
| 36 GL_GPU_MEMORY_BUFFER_ID 0x78FD | |
| 37 | |
| 38 New Procedures and Functions | 34 New Procedures and Functions |
| 39 | 35 |
| 40 GLuint CreateGpuMemoryBufferImageCHROMIUM(GLsizei width, | 36 GLuint CreateGpuMemoryBufferImageCHROMIUM(GLsizei width, |
| 41 GLsizei height, | 37 GLsizei height, |
| 42 GLenum internalformat, | 38 GLenum internalformat, |
| 43 GLenum usage) | 39 GLenum usage) |
| 44 | 40 |
| 45 Create a GpuMemoryBuffer backed image with width equal to <width> | 41 Create a GpuMemoryBuffer backed image with width equal to <width> |
| 46 and height equal to <height> and format equal to <internalformat>. | 42 and height equal to <height> and format equal to <internalformat>. |
| 47 | 43 |
| 48 Returns a unique identifier for the image that could be used in | 44 Returns a unique identifier for the image that could be used in |
| 49 subsequent operations. | 45 subsequent operations. |
| 50 | 46 |
| 51 INVALID_VALUE is generated if <width> or <height> is nonpositive. | 47 INVALID_VALUE is generated if <width> or <height> is nonpositive. |
| 52 | 48 |
| 53 INVALID_ENUM is generated if <internalformat> is not one of | 49 INVALID_ENUM is generated if <internalformat> is not one of |
| 54 RGB or RGBA. | 50 RGB or RGBA. |
| 55 | 51 |
| 56 INVALID_ENUM is generated if <usage> is not READ_WRTIE_CHROMIUM. | 52 INVALID_ENUM is generated if <usage> is not READ_WRTIE_CHROMIUM. |
| 57 | 53 |
| 58 On OS X, driver bugs prevent the usage of memory buffers with RGB internal | 54 On OS X, driver bugs prevent the usage of memory buffers with RGB internal |
| 59 format. As a workaround, the created GpuMemoryBuffer will always have | 55 format. As a workaround, the created GpuMemoryBuffer will always have |
| 60 internal format RGBA. The caller is responsible for handling this | 56 internal format RGBA. The caller is responsible for handling this |
| 61 appropriately. The only support provided by this extension is that calls | 57 appropriately. The only support provided by this extension is that calls |
| 62 that require parameter validation (such as copyTexImage2D and | 58 that require parameter validation (such as copyTexImage2D and |
| 63 copyTexSubImage2D) will perform paramter validation as if the internal | 59 copyTexSubImage2D) will perform paramter validation as if the internal |
| 64 format were RGB. | 60 format were RGB. |
| 65 | 61 |
| 66 void GetImageivCHROMIUM(GLuint image_id, GLenum param, GLint* data) | |
| 67 | |
| 68 When the parameter GL_GPU_MEMORY_BUFFER_ID is passed as <param>, returns the | |
| 69 id of the GpuMemoryBuffer associated with <image_id>. If the image does not | |
| 70 exist, or is not associated with a GpuMemoryBuffer, returns -1. | |
| 71 | |
| 72 Errors | 62 Errors |
| 73 | 63 |
| 74 None. | 64 None. |
| 75 | 65 |
| 76 New State | 66 New State |
| 77 | 67 |
| 78 None. | 68 None. |
| 79 | 69 |
| 80 Revision History | 70 Revision History |
| 81 | 71 |
| 82 9/29/2014 Documented the extension. | 72 9/29/2014 Documented the extension. |
| 83 4/12/2016 Added details of OS X RGB workaround. | 73 4/12/2016 Added details of OS X RGB workaround. |
| 84 5/25/2016 Added the GetImageivCHROMIUM function. | |
| OLD | NEW |