Mesa (master): r600g: add DPH support.

[Dave Airlie]

Module: Mesa
Branch: master
Commit: e57437ccd6814ffd4534fd46512afeb0b9e06eed
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=e57437ccd6814ffd4534fd46512afeb0b9e06eed

Author: Dave Airlie <airlied at redhat.com>
Date:   Tue Aug 24 10:29:33 2010 +1000

r600g: add DPH support.

---

 src/gallium/drivers/r600/r600_shader.c |    9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletions(-)

diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c
index f0b7df5..6195bd5 100644
--- a/src/gallium/drivers/r600/r600_shader.c
+++ b/src/gallium/drivers/r600/r600_shader.c
@@ -1265,6 +1265,13 @@ static int tgsi_dp(struct r600_shader_ctx *ctx)
 				alu.src[0].chan = alu.src[1].chan = 0;
 			}
 			break;
+		case TGSI_OPCODE_DPH:
+			if (i == 3) {
+				alu.src[0].sel = V_SQ_ALU_SRC_1;
+				alu.src[0].chan = 0;
+				alu.src[0].neg = 0;
+			}
+			break;
 		default:
 			break;
 		}
@@ -1660,7 +1667,7 @@ static struct r600_shader_tgsi_instruction r600_shader_tgsi_instruction[] = {
 	{32,			0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
 	{TGSI_OPCODE_ABS,	0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MOV, tgsi_op2},
 	{TGSI_OPCODE_RCC,	0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
-	{TGSI_OPCODE_DPH,	0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
+	{TGSI_OPCODE_DPH,	0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_DOT4, tgsi_dp},
 	{TGSI_OPCODE_COS,	0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_COS, tgsi_trig},
 	{TGSI_OPCODE_DDX,	0, SQ_TEX_INST_GET_GRADIENTS_H, tgsi_tex},
 	{TGSI_OPCODE_DDY,	0, SQ_TEX_INST_GET_GRADIENTS_V, tgsi_tex},