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authorNicolai Haehnle <nhaehnle@gmail.com>2008-07-06 16:39:31 +0200
committerNicolai Haehnle <nhaehnle@gmail.com>2008-07-06 16:39:31 +0200
commit056689d457924ba4d8a0723d0c5f24383d1757d9 (patch)
treeb8cb9d2a5bfac8ad31c75dbcf92839ab9a8e8fa3 /src
parent2b2cb566563b9f1f9739327ef9874143af838850 (diff)
r500_fragprog: Fix RSQ with negative parameters
Diffstat (limited to 'src')
-rw-r--r--src/mesa/drivers/dri/r300/r500_fragprog_emit.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/r300/r500_fragprog_emit.c b/src/mesa/drivers/dri/r300/r500_fragprog_emit.c
index 678114b8c1..8c900941c4 100644
--- a/src/mesa/drivers/dri/r300/r500_fragprog_emit.c
+++ b/src/mesa/drivers/dri/r300/r500_fragprog_emit.c
@@ -784,7 +784,8 @@ static void do_inst(struct r500_pfs_compile_state *cs, struct prog_instruction *
break;
case OPCODE_RSQ:
src[0] = make_src(cs, fpi->SrcReg[0]);
- emit_sop(cs, R500_ALPHA_OP_RSQ, fpi->DstReg, src[0], make_sop_swizzle(fpi->SrcReg[0]));
+ emit_sop(cs, R500_ALPHA_OP_RSQ, fpi->DstReg, src[0],
+ (make_sop_swizzle(fpi->SrcReg[0]) | (R500_SWIZ_MOD_ABS<<3)) & ~(R500_SWIZ_MOD_NEG<<3));
break;
case OPCODE_SCS:
emit_trig(cs, fpi);