Neil Roberts ec5009fa23 Use GL_PACK_ALIGNMENT of 1 whenever possible ... The Intel driver currently has an optimisation when calling glReadPixels into a PBO so that it will use a blit instead of the Mesa fallback path. However this only works if the GL_PACK_ALIGNMENT is exactly 1, even if this would be equivalent to a higher alignment value because the bpp*width is already aligned. To make it more likely to hit this fast path, we now detect this situation and explicitly use an alignment of 1. To make this work the texture driver needs to be passed down the bpp*width as well as the rowstride when configuring the alignment. Reviewed-by: Robert Bragg <robert@linux.intel.com>		2012-04-05 13:51:56 +01:00
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cogl-gl.c	Use GL_ARB_sampler_objects	2012-04-05 13:47:36 +01:00
cogl-texture-driver-gl.c	Use GL_PACK_ALIGNMENT of 1 whenever possible	2012-04-05 13:51:56 +01:00