Mesa (master): nvfx: add LRP in vertprog

[Luca Barbieri]

Module: Mesa
Branch: master
Commit: 70fe9fd0075faf1fe731401fba9f38e17d7d062b
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=70fe9fd0075faf1fe731401fba9f38e17d7d062b

Author: Luca Barbieri <luca at luca-barbieri.com>
Date:   Thu Feb 25 02:52:43 2010 +0100

nvfx: add LRP in vertprog

glsl generates these.

---

 src/gallium/drivers/nvfx/nvfx_vertprog.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/src/gallium/drivers/nvfx/nvfx_vertprog.c b/src/gallium/drivers/nvfx/nvfx_vertprog.c
index 71c76a6..b405fd9 100644
--- 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;