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authorMaciej Cencora <m.cencora@gmail.com>2009-09-19 18:45:59 +0200
committerMaciej Cencora <m.cencora@gmail.com>2009-09-23 23:22:33 +0200
commit84c7afd9e0f2df72d90dd82d38384c4f2f45173e (patch)
treef785d07017d3c8206db37b0139e24f7410cdd231
parente41707becaffd604fedc885719e5b061a4a5b363 (diff)
r300: fallback to software rendering if we are out of free texcoords
Fixes #22741
-rw-r--r--src/mesa/drivers/dri/r300/r300_fragprog_common.c18
1 files changed, 16 insertions, 2 deletions
diff --git a/src/mesa/drivers/dri/r300/r300_fragprog_common.c b/src/mesa/drivers/dri/r300/r300_fragprog_common.c
index 469c278b51..0bdc90b4a8 100644
--- a/src/mesa/drivers/dri/r300/r300_fragprog_common.c
+++ b/src/mesa/drivers/dri/r300/r300_fragprog_common.c
@@ -99,8 +99,8 @@ static void insert_WPOS_trailer(struct r300_fragment_program_compiler *compiler,
{
int i;
+ fp->wpos_attr = FRAG_ATTRIB_MAX;
if (!(compiler->Base.Program.InputsRead & FRAG_BIT_WPOS)) {
- fp->wpos_attr = FRAG_ATTRIB_MAX;
return;
}
@@ -112,6 +112,13 @@ static void insert_WPOS_trailer(struct r300_fragment_program_compiler *compiler,
}
}
+ /* No free texcoord found, fall-back to software rendering */
+ if (fp->wpos_attr == FRAG_ATTRIB_MAX)
+ {
+ compiler->Base.Error = 1;
+ return;
+ }
+
rc_transform_fragment_wpos(&compiler->Base, FRAG_ATTRIB_WPOS, fp->wpos_attr);
}
@@ -127,8 +134,8 @@ static void rewriteFog(struct r300_fragment_program_compiler *compiler, struct r
struct prog_src_register src;
int i;
+ fp->fog_attr = FRAG_ATTRIB_MAX;
if (!(compiler->Base.Program.InputsRead & FRAG_BIT_FOGC)) {
- fp->fog_attr = FRAG_ATTRIB_MAX;
return;
}
@@ -140,6 +147,13 @@ static void rewriteFog(struct r300_fragment_program_compiler *compiler, struct r
}
}
+ /* No free texcoord found, fall-back to software rendering */
+ if (fp->fog_attr == FRAG_ATTRIB_MAX)
+ {
+ compiler->Base.Error = 1;
+ return;
+ }
+
memset(&src, 0, sizeof(src));
src.File = PROGRAM_INPUT;
src.Index = fp->fog_attr;