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authorEric Anholt <[email protected]>2011-10-12 17:05:20 -0700
committerEric Anholt <[email protected]>2011-11-03 23:29:52 -0700
commit345fc4161967f15fb80848cd7dc6a63100f8c12d (patch)
treea3a8c1feb8f0d404ed9f4ecd499c8563b8285322 /include/c99
parent3e51ef099034f8c0da4a782dfd0d92194e068d85 (diff)
swrast: Convert color glReadPixels slow path to using MapRenderbuffer.
This may be a bit slower than before because we're switching from per-format compiled loops in GetRow to _mesa_unpack_rgba_block_unpack's loop around a callback to unpack a pixel. The solution there would be to make _mesa_unpack_rgba_block fold the span loop into the format handlers. (On the other hand, function call overhead will hardly matter if MapRenderbuffer means the driver gets the data into cacheable memory instead of uncached). The adjust_colors code should no longer be required, since the unpack function does the 565 to float conversion in a single pass instead of converting it (poorly) through 8888 as apparently happened in the past. Reviewed-by: Brian Paul <[email protected]>
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