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authorBrian <[email protected]>2007-06-20 10:55:31 -0600
committerBrian <[email protected]>2007-06-20 10:55:31 -0600
commitc1cb5412336be0e1067899318403ea573be9bb4d (patch)
treee96228bb7b3ff5014e702ee72c85cebf58993e3d
parent9cde7fb61dd26cd98a26dcb0a54197e8d28ac3be (diff)
copy wpos attrib info into zoomed span (fixes fog perspective correction problem)
-rw-r--r--src/mesa/swrast/s_zoom.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/mesa/swrast/s_zoom.c b/src/mesa/swrast/s_zoom.c
index 78fa137d3fd..1ab5911f2f1 100644
--- a/src/mesa/swrast/s_zoom.c
+++ b/src/mesa/swrast/s_zoom.c
@@ -162,12 +162,14 @@ zoom_span( GLcontext *ctx, GLint imgX, GLint imgY, const SWspan *span,
zoomed_arrays.rgba = zoomed_arrays.attribs[FRAG_ATTRIB_COL0];
#endif
+ /* copy attribute info (XXX copy all attribs?) */
+ COPY_4V(zoomed.attrStart[FRAG_ATTRIB_WPOS], span->attrStart[FRAG_ATTRIB_WPOS]);
+ COPY_4V(zoomed.attrStepX[FRAG_ATTRIB_WPOS], span->attrStepX[FRAG_ATTRIB_WPOS]);
+ COPY_4V(zoomed.attrStepY[FRAG_ATTRIB_WPOS], span->attrStepY[FRAG_ATTRIB_WPOS]);
- /* copy fog interp info */
zoomed.attrStart[FRAG_ATTRIB_FOGC][0] = span->attrStart[FRAG_ATTRIB_FOGC][0];
zoomed.attrStepX[FRAG_ATTRIB_FOGC][0] = span->attrStepX[FRAG_ATTRIB_FOGC][0];
zoomed.attrStepY[FRAG_ATTRIB_FOGC][0] = span->attrStepY[FRAG_ATTRIB_FOGC][0];
- /* XXX copy texcoord info? */
if (format == GL_RGBA || format == GL_RGB) {
/* copy Z info */