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authorEric Anholt <eric@anholt.net>2009-08-26 09:51:15 -0700
committerEric Anholt <eric@anholt.net>2009-09-08 14:30:15 -0700
commitb4922b533155cc139ebafb111502bb55d2ad2ccf (patch)
treea784133f9de7e5fccda5305ab926bebc5ffbaf19 /src/mesa/math/m_debug_clip.c
parent3e4539a471da48066a83eda8e14301dbc4dbf6db (diff)
mesa: Add support for ARB_depth_clamp.
This currently doesn't include fixing up the cliptests in the assembly paths to support ARB_depth_clamp, so enabling depth_clamp forces the C path.
Diffstat (limited to 'src/mesa/math/m_debug_clip.c')
-rw-r--r--src/mesa/math/m_debug_clip.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/src/mesa/math/m_debug_clip.c b/src/mesa/math/m_debug_clip.c
index 460fed4a75..f2b757a91b 100644
--- a/src/mesa/math/m_debug_clip.c
+++ b/src/mesa/math/m_debug_clip.c
@@ -67,7 +67,8 @@ static GLvector4f *ref_cliptest_points4( GLvector4f *clip_vec,
GLvector4f *proj_vec,
GLubyte clipMask[],
GLubyte *orMask,
- GLubyte *andMask )
+ GLubyte *andMask,
+ GLboolean viewport_z_clip )
{
const GLuint stride = clip_vec->stride;
const GLuint count = clip_vec->count;
@@ -87,8 +88,10 @@ static GLvector4f *ref_cliptest_points4( GLvector4f *clip_vec,
if ( cx + cw < 0 ) mask |= CLIP_LEFT_BIT;
if ( -cy + cw < 0 ) mask |= CLIP_TOP_BIT;
if ( cy + cw < 0 ) mask |= CLIP_BOTTOM_BIT;
- if ( -cz + cw < 0 ) mask |= CLIP_FAR_BIT;
- if ( cz + cw < 0 ) mask |= CLIP_NEAR_BIT;
+ if (viewport_z_clip) {
+ if ( -cz + cw < 0 ) mask |= CLIP_FAR_BIT;
+ if ( cz + cw < 0 ) mask |= CLIP_NEAR_BIT;
+ }
clipMask[i] = mask;
if ( mask ) {
c++;