nv40: apply ABS modifier to RSQ source in vp

Gallium used to do this for us :)

diff --git a/src/gallium/drivers/nv40/nv40_vertprog.c b/src/gallium/drivers/nv40/nv40_vertprog.c
index ff988e6..1392fe9 100644 (file)
--- a/src/gallium/drivers/nv40/nv40_vertprog.c
+++ b/src/gallium/drivers/nv40/nv40_vertprog.c
@@ -571,7 +571,7 @@ nv40_vertprog_parse_instruction(struct nv40_vpc *vpc,
        case TGSI_OPCODE_RET:
                break;
        case TGSI_OPCODE_RSQ:
-               arith(vpc, 1, OP_RSQ, dst, mask, none, none, src[0]);
+               arith(vpc, 1, OP_RSQ, dst, mask, none, none, abs(src[0]));
                break;
        case TGSI_OPCODE_SGE:
                arith(vpc, 0, OP_SGE, dst, mask, src[0], src[1], none);