From: Luca Barbieri <luca@luca-barbieri.com>
Date: Sat, 21 Aug 2010 17:43:46 +0000 (+0200)
Subject: nvfx: implement DP2 in vp and fp
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=32d2525d645e4a06a116a1c0433bda0dd3bc245f;p=mesa.git

nvfx: implement DP2 in vp and fp
---

diff --git a/src/gallium/drivers/nvfx/nvfx_fragprog.c b/src/gallium/drivers/nvfx/nvfx_fragprog.c
index 2c24d523c47..40cd410e9b3 100644
--- a/src/gallium/drivers/nvfx/nvfx_fragprog.c
+++ b/src/gallium/drivers/nvfx/nvfx_fragprog.c
@@ -573,6 +573,11 @@ nvfx_fragprog_parse_instruction(struct nvfx_context* nvfx, struct nvfx_fpc *fpc,
 			nvfx_fp_emit(fpc, arith(sat, DDY, dst, mask, src[0], none, none));
 		}
 		break;
+	case TGSI_OPCODE_DP2:
+		tmp = nvfx_src(temp(fpc));
+		nvfx_fp_emit(fpc, arith(0, MUL, tmp.reg, NVFX_FP_MASK_X | NVFX_FP_MASK_Y, src[0], src[1], none));
+		nvfx_fp_emit(fpc, arith(0, ADD, dst, mask, swz(tmp, X, X, X, X), swz(tmp, Y, Y, Y, Y), none));
+		break;
 	case TGSI_OPCODE_DP3:
 		nvfx_fp_emit(fpc, arith(sat, DP3, dst, mask, src[0], src[1], none));
 		break;
diff --git a/src/gallium/drivers/nvfx/nvfx_vertprog.c b/src/gallium/drivers/nvfx/nvfx_vertprog.c
index d68224ce7a2..6b19d86a180 100644
--- a/src/gallium/drivers/nvfx/nvfx_vertprog.c
+++ b/src/gallium/drivers/nvfx/nvfx_vertprog.c
@@ -514,6 +514,11 @@ nvfx_vertprog_parse_instruction(struct nvfx_context* nvfx, struct nvfx_vpc *vpc,
 	case TGSI_OPCODE_COS:
 		nvfx_vp_emit(vpc, arith(SCA, COS, dst, mask, none, none, src[0]));
 		break;
+        case TGSI_OPCODE_DP2:
+                tmp = nvfx_src(temp(vpc));
+                nvfx_vp_emit(vpc, arith(VEC, MUL, tmp.reg, NVFX_VP_MASK_X | NVFX_VP_MASK_Y, src[0], src[1], none));
+                nvfx_vp_emit(vpc, arith(VEC, ADD, dst, mask, swz(tmp, X, X, X, X), swz(tmp, Y, Y, Y, Y), none));
+                break;
 	case TGSI_OPCODE_DP3:
 		nvfx_vp_emit(vpc, arith(VEC, DP3, dst, mask, src[0], src[1], none));
 		break;