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util: fix incorrect Z bit masking in util_clear_depth_stencil() 

For PIPE_FORMAT_Z24_UNORM_S8_UINT, the Z bits are in the 24
least significant bits.

Fixes http://bugs.freedesktop.org/show_bug.cgi?id=60527
and http://bugs.freedesktop.org/show_bug.cgi?id=60524
and http://bugs.freedesktop.org/show_bug.cgi?id=60047

Note: This is a candidate for the stable branches.

Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
This commit is contained in:
Brian Paul 2013-02-11 16:39:42 -07:00
parent a79ce0c925
commit 4bfdef87e6
1 changed files with 2 additions and 2 deletions
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4
src/gallium/auxiliary/util/u_surface.c
View File

@ -421,10 +421,10 @@ util_clear_depth_stencil(struct pipe_context *pipe,
else {
uint32_t dst_mask;
if (format == PIPE_FORMAT_Z24_UNORM_S8_UINT)
dst_mask = 0xffffff00;
dst_mask = 0x00ffffff;
else {
assert(format == PIPE_FORMAT_S8_UINT_Z24_UNORM);
dst_mask = 0xffffff;
dst_mask = 0xffffff00;
}
if (clear_flags & PIPE_CLEAR_DEPTH)
dst_mask = ~dst_mask;