Mesa (master): r300-gallium: vs: Dot products.

[Corbin Simpson]

Module: Mesa
Branch: master
Commit: ada7ced1890c7d657f14a9af2caa72bad3af879f
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=ada7ced1890c7d657f14a9af2caa72bad3af879f

Author: Corbin Simpson <MostAwesomeDude at gmail.com>
Date:   Wed Apr 15 13:23:25 2009 -0700

r300-gallium: vs: Dot products.

---

 src/gallium/drivers/r300/r300_state_tcl.c |   33 +++++++++++++++++++++++++++++
 src/gallium/drivers/r300/r300_state_tcl.h |    1 +
 2 files changed, 34 insertions(+), 0 deletions(-)

diff --git a/src/gallium/drivers/r300/r300_state_tcl.c b/src/gallium/drivers/r300/r300_state_tcl.c
index 47d6c6d..fc865a2 100644
--- a/src/gallium/drivers/r300/r300_state_tcl.c
+++ b/src/gallium/drivers/r300/r300_state_tcl.c
@@ -117,6 +117,9 @@ static INLINE unsigned r300_vs_dst(struct r300_vs_asm* assembler,
 static uint32_t r300_vs_op(unsigned op)
 {
     switch (op) {
+        case TGSI_OPCODE_DP3:
+        case TGSI_OPCODE_DP4:
+            return R300_VE_DOT_PRODUCT;
         case TGSI_OPCODE_MUL:
             return R300_VE_MULTIPLY;
         case TGSI_OPCODE_ADD:
@@ -195,6 +198,36 @@ static void r300_vs_instruction(struct r300_vertex_shader* vs,
                     &inst->FullDstRegisters[0], inst->Instruction.Opcode,
                     2);
             break;
+        case TGSI_OPCODE_DP3:
+            /* Set alpha swizzle to zero for src0 and src1 */
+            if (!inst->FullSrcRegisters[0].SrcRegister.Extended) {
+                inst->FullSrcRegisters[0].SrcRegister.Extended = TRUE;
+                inst->FullSrcRegisters[0].SrcRegisterExtSwz.ExtSwizzleX =
+                    inst->FullSrcRegisters[0].SrcRegister.SwizzleX;
+                inst->FullSrcRegisters[0].SrcRegisterExtSwz.ExtSwizzleY =
+                    inst->FullSrcRegisters[0].SrcRegister.SwizzleY;
+                inst->FullSrcRegisters[0].SrcRegisterExtSwz.ExtSwizzleZ =
+                    inst->FullSrcRegisters[0].SrcRegister.SwizzleZ;
+            }
+            inst->FullSrcRegisters[0].SrcRegisterExtSwz.ExtSwizzleW =
+                TGSI_EXTSWIZZLE_ZERO;
+            if (!inst->FullSrcRegisters[1].SrcRegister.Extended) {
+                inst->FullSrcRegisters[1].SrcRegister.Extended = TRUE;
+                inst->FullSrcRegisters[1].SrcRegisterExtSwz.ExtSwizzleX =
+                    inst->FullSrcRegisters[1].SrcRegister.SwizzleX;
+                inst->FullSrcRegisters[1].SrcRegisterExtSwz.ExtSwizzleY =
+                    inst->FullSrcRegisters[1].SrcRegister.SwizzleY;
+                inst->FullSrcRegisters[1].SrcRegisterExtSwz.ExtSwizzleZ =
+                    inst->FullSrcRegisters[1].SrcRegister.SwizzleZ;
+            }
+            inst->FullSrcRegisters[1].SrcRegisterExtSwz.ExtSwizzleW =
+                TGSI_EXTSWIZZLE_ZERO;
+            /* Fall through */
+        case TGSI_OPCODE_DP4:
+            r300_vs_emit_inst(vs, assembler, inst->FullSrcRegisters,
+                    &inst->FullDstRegisters[0], inst->Instruction.Opcode,
+                    2);
+            break;
         case TGSI_OPCODE_MOV:
         case TGSI_OPCODE_SWZ:
             inst->FullSrcRegisters[1] = r300_constant_zero;
diff --git a/src/gallium/drivers/r300/r300_state_tcl.h b/src/gallium/drivers/r300/r300_state_tcl.h
index 3d10e24..de94402 100644
--- a/src/gallium/drivers/r300/r300_state_tcl.h
+++ b/src/gallium/drivers/r300/r300_state_tcl.h
@@ -32,6 +32,7 @@
 
 /* XXX get these to r300_reg */
 #define R300_PVS_DST_OPCODE(x)   ((x) << 0)
+#   define R300_VE_DOT_PRODUCT            1
 #   define R300_VE_MULTIPLY               2
 #   define R300_VE_ADD                    3
 #define R300_PVS_DST_MACRO_INST    (1 << 7)