diff options
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_vs_emit.c')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_vs_emit.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_vs_emit.c b/src/mesa/drivers/dri/i965/brw_vs_emit.c index 0b44deeb63..128987d78a 100644 --- a/src/mesa/drivers/dri/i965/brw_vs_emit.c +++ b/src/mesa/drivers/dri/i965/brw_vs_emit.c @@ -485,6 +485,23 @@ static void emit_cmp( struct brw_compile *p, brw_set_predicate_control(p, BRW_PREDICATE_NONE); } +static void emit_sign(struct brw_vs_compile *c, + struct brw_reg dst, + struct brw_reg arg0) +{ + struct brw_compile *p = &c->func; + + brw_MOV(p, dst, brw_imm_f(0)); + + brw_CMP(p, brw_null_reg(), BRW_CONDITIONAL_L, arg0, brw_imm_f(0)); + brw_MOV(p, dst, brw_imm_f(-1.0)); + brw_set_predicate_control(p, BRW_PREDICATE_NONE); + + brw_CMP(p, brw_null_reg(), BRW_CONDITIONAL_G, arg0, brw_imm_f(0)); + brw_MOV(p, dst, brw_imm_f(1.0)); + brw_set_predicate_control(p, BRW_PREDICATE_NONE); +} + static void emit_max( struct brw_compile *p, struct brw_reg dst, struct brw_reg arg0, @@ -1719,6 +1736,9 @@ void brw_vs_emit(struct brw_vs_compile *c ) case OPCODE_SLE: unalias2(c, dst, args[0], args[1], emit_sle); break; + case OPCODE_SSG: + unalias1(c, dst, args[0], emit_sign); + break; case OPCODE_SUB: brw_ADD(p, dst, args[0], negate(args[1])); break; |