nvfx: add LRP in vertprog

glsl generates these.

diff --git a/src/gallium/drivers/nvfx/nvfx_vertprog.c b/src/gallium/drivers/nvfx/nvfx_vertprog.c
index 71c76a6842ce55b15ca05595a3b411524b221c5e..b405fd9c821e032c5d0466cc75d301373920fa2c 100644 (file)
--- a/src/gallium/drivers/nvfx/nvfx_vertprog.c
+++ b/src/gallium/drivers/nvfx/nvfx_vertprog.c
@@ -515,6 +515,11 @@ nvfx_vertprog_parse_instruction(struct nvfx_context* nvfx, struct nvfx_vpc *vpc,
        case TGSI_OPCODE_LOG:
                arith(vpc, SCA, LOG, dst, mask, none, none, src[0]);
                break;
+       case TGSI_OPCODE_LRP:
+               tmp = temp(vpc);
+               arith(vpc, VEC, MAD, tmp, mask, neg(src[0]), src[2], src[2]);
+               arith(vpc, VEC, MAD, dst, mask, src[0], src[1], tmp);
+               break;
        case TGSI_OPCODE_MAD:
                arith(vpc, VEC, MAD, dst, mask, src[0], src[1], src[2]);
                break;