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Diffstat (limited to 'chromium/gpu/GLES2/extensions/CHROMIUM/CHROMIUM_map_image.txt')
-rw-r--r-- | chromium/gpu/GLES2/extensions/CHROMIUM/CHROMIUM_map_image.txt | 107 |
1 files changed, 0 insertions, 107 deletions
diff --git a/chromium/gpu/GLES2/extensions/CHROMIUM/CHROMIUM_map_image.txt b/chromium/gpu/GLES2/extensions/CHROMIUM/CHROMIUM_map_image.txt deleted file mode 100644 index 6304fdace0f..00000000000 --- a/chromium/gpu/GLES2/extensions/CHROMIUM/CHROMIUM_map_image.txt +++ /dev/null @@ -1,107 +0,0 @@ -Name - - CHROMIUM_map_image - -Name Strings - - GL_CHROMIUM_map_image - -Version - - Last Modifed Date: May 9, 2013 - -Dependencies - - OpenGL ES 2.0 is required. - -Overview - - This extension allows for more efficient uploading of texture data through - Chromium's OpenGL ES 2.0 implementation. - - For security reasons Chromium accesses the GPU from a separate process. User - processes are not allowed to access the GPU directly. This multi-process - architechure has the advantage that GPU operations can be secured and - pipelined but it has the disadvantage that all data that is going to be - passed to GPU must first be made available to the separate GPU process. - - This extension helps the application directly allocate and access texture - memory. - -Issues - - None - -New Tokens - - None - -New Procedures and Functions - - GLuint CreateImageCHROMIUM (GLsizei width, GLsizei height, - GLenum internalformat) - - Allocate an image with width equal to <width> and height equal - to <height> stored in format <internalformat>. - - Returns a unique identifier for the allocated image that could be used - in subsequent operations. - - INVALID_VALUE is generated if <width> or <height> is nonpositive. - - void DestroyImageCHROMIUM (GLuint image_id) - - Frees the image previously allocated by a call to CreateImageCHROMIUM. - - INVALID_OPERATION is generated if <image_id> is not a valid image id. - - void* MapImageCHROMIUM (GLuint image_id, GLenum access) - - Returns a pointer to in the user memory for the application to modify - the image. <access> parameter defines if the user will read or write the - pixels. - - INVALID_OPERATION is generated if <image_id> is not a valid image id. - - INVALID_OPERATION is generated if the image was already mapped by a previous - call to this method. - - INVALID_ENUM is generated if <access> is not one of WRITE_ONLY, READ_ONLY - and READ_WRITE. - - void UnmapImageCHROMIUM (GLuint image_id) - - Removes the mapping created by a call to MapImageCHROMIUM. - - Note that after calling UnmapImageCHROMIUM the application should assume - that the memory returned by MapImageCHROMIUM is off limits and is no longer - accessible by the application. Accessing it after calling - UnmapImageCHROMIUM will produce undefined results. - - INVALID_OPERATION is generated if <image_id> is not a valid image id. - - INVALID_OPERATION is generated if the image was not already mapped by a - previous call to MapImageCHROMIUM. - - void GetImageParameterivCHROMIUM(GLuint image_id, GLenum pname, - GLint* params) - - Sets <params> to the integer value of the parameter specified by <pname> - for the image specified by <image_id>. <params> is expected to be - properly allocated before calling this method. - - INVALID_OPERATION is generated if <image_id> is not a valid image id. - - INVALID_ENUM is generated if <pname> is not IMAGE_ROWBYTES_CHROMIUM. - -Errors - - None. - -New State - - None. - -Revision History - - 5/9/2013 Documented the extension |