nv50: FLR/FRC

diff --git a/src/gallium/drivers/nv50/nv50_program.c b/src/gallium/drivers/nv50/nv50_program.c
index fa16c7522e16b9802d1d3108fb4530385057539d..448062e767f30f26521b843887a14aee7f30e625 100644 (file)
--- a/src/gallium/drivers/nv50/nv50_program.c
+++ b/src/gallium/drivers/nv50/nv50_program.c
@@ -15,8 +15,6 @@
 /* ABS
  * ARL
  * DST - const(1.0)
- * FLR
- * FRC
  * LIT
  * POW
  * SWZ
@@ -629,6 +627,24 @@ emit_set(struct nv50_pc *pc, unsigned c_op, struct nv50_reg *dst,
                free_temp(pc, dst);
 }
 
+static void
+emit_flr(struct nv50_pc *pc, struct nv50_reg *dst, struct nv50_reg *src)
+{
+       unsigned inst[2] = { 0, 0 };
+
+       set_long(pc, inst);
+       inst[0] = 0xa0000000; /* cvt */
+       inst[1] |= (6 << 29); /* cvt */
+       inst[1] |= 0x08000000; /* integer mode */
+       inst[1] |= 0x04000000; /* 32 bit */
+       inst[1] |= ((0x1 << 3)) << 14; /* .rn */
+       inst[1] |= (1 << 14); /* src .f32 */
+       set_dst(pc, dst, inst);
+       set_src_0(pc, src, inst);
+
+       emit(pc, inst);
+}
+
 static boolean
 nv50_program_tx_insn(struct nv50_pc *pc, const union tgsi_full_token *tok)
 {
@@ -716,6 +732,23 @@ nv50_program_tx_insn(struct nv50_pc *pc, const union tgsi_full_token *tok)
                }
                free_temp(pc, temp);
                break;
+       case TGSI_OPCODE_FLR:
+               for (c = 0; c < 4; c++) {
+                       if (!(mask & (1 << c)))
+                               continue;
+                       emit_flr(pc, dst[c], src[0][c]);
+               }
+               break;
+       case TGSI_OPCODE_FRC:
+               temp = alloc_temp(pc, NULL);
+               for (c = 0; c < 4; c++) {
+                       if (!(mask & (1 << c)))
+                               continue;
+                       emit_flr(pc, temp, src[0][c]);
+                       emit_sub(pc, dst[c], src[0][c], temp);
+               }
+               free_temp(pc, temp);
+               break;
        case TGSI_OPCODE_LG2:
                for (c = 0; c < 4; c++) {
                        if (!(mask & (1 << c)))