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-rw-r--r--src/mesa/drivers/dri/r300/r300_fragprog_common.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/r300/r300_fragprog_common.c b/src/mesa/drivers/dri/r300/r300_fragprog_common.c
index 61ea5e4d9a..0646da4624 100644
--- a/src/mesa/drivers/dri/r300/r300_fragprog_common.c
+++ b/src/mesa/drivers/dri/r300/r300_fragprog_common.c
@@ -256,6 +256,19 @@ static void translate_fragment_program(GLcontext *ctx, struct r300_fragment_prog
fp->InputsRead = compiler.Base.Program.InputsRead;
+ /* Clear the fog/wpos_attr if code accessing these
+ * attributes has been removed during compilation
+ */
+ if (fp->fog_attr != FRAG_ATTRIB_MAX) {
+ if (!(fp->InputsRead & (1 << fp->fog_attr)))
+ fp->fog_attr = FRAG_ATTRIB_MAX;
+ }
+
+ if (fp->wpos_attr != FRAG_ATTRIB_MAX) {
+ if (!(fp->InputsRead & (1 << fp->wpos_attr)))
+ fp->wpos_attr = FRAG_ATTRIB_MAX;
+ }
+
rc_destroy(&compiler.Base);
}