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intel: Add support for blit copies of >32bpp formats.

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The blitter only does up 32bpp at a time, so we handle it by mangling
coordinates and calling the surface 32bpp.

Fixes ARB_texture_rg/fbo-generatemipmap-formats-float with ARB_texture_float.

Reviewed-by: Brian Paul <brianp@vmware.com>
This commit is contained in:
Eric Anholt 2011-04-15 18:15:59 -07:00
parent b31a99367c
commit 0bbbeba2db
1 changed files with 11 additions and 0 deletions
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11
src/mesa/drivers/dri/intel/intel_blit.c
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@ -146,6 +146,17 @@ intelEmitCopyBlit(struct intel_context *intel,
src_pitch *= cpp;
dst_pitch *= cpp;
/* For big formats (such as floating point), do the copy using 32bpp and
* multiply the coordinates.
*/
if (cpp > 4) {
assert(cpp % 4 == 0);
dst_x *= cpp / 4;
dst_x2 *= cpp / 4;
src_x *= cpp / 4;
cpp = 4;
}
BR13 = br13_for_cpp(cpp) | translate_raster_op(logic_op) << 16;
switch (cpp) {