r300: Clear fragment program instruction slots on first use

Make sure that instruction slots are fully initialized with NOPs during
find_and_prepare_slot(). This fixes a bug when a fragment program was
translated more than once (e.g. due to a second call to glProgramStringARB).

This partially fixes glean/fragProg1.

diff --git a/src/mesa/drivers/dri/r300/r300_fragprog.c b/src/mesa/drivers/dri/r300/r300_fragprog.c
index 6262dc7..3f9d83f 100644 (file)
--- a/src/mesa/drivers/dri/r300/r300_fragprog.c
+++ b/src/mesa/drivers/dri/r300/r300_fragprog.c
@@ -1143,7 +1143,9 @@ static int find_and_prepare_slot(struct r300_fragment_program* rp,
                        }
 
                        rp->alu.inst[pos].inst0 = NOP_INST0;
+                       rp->alu.inst[pos].inst1 = NOP_INST1;
                        rp->alu.inst[pos].inst2 = NOP_INST2;
+                       rp->alu.inst[pos].inst3 = NOP_INST3;
 
                        cs->nrslots++;
                }