Neil Roberts 031dd661c0 bitmap: Add a function to convert into an existing buffer
This adds _cogl_bitmap_convert_into_bitmap which is the same as
_cogl_bitmap_convert except that it writes into an existing bitmap
instead of allocating a new one. _cogl_bitmap_convert now just
allocates a buffer and calls the new function. This is used in
_cogl_read_pixels to avoid allocating a second intermediate buffer
when the pixel format to store in is not GL_RGBA.

Reviewed-by: Robert Bragg <robert@linux.intel.com>
2012-03-05 17:46:57 +00:00
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