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tgsi: Implement OPCODE_ROUND for SSE2 backend.

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This commit is contained in:
Michal Krol 2008-11-26 12:56:23 +01:00
parent 1347439a87
commit 972922b1bf
1 changed files with 28 additions and 1 deletions
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29
src/gallium/auxiliary/tgsi/tgsi_sse2.c
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@ -842,6 +842,29 @@ emit_rcp (
make_xmm( xmm_src ) );
}
static void PIPE_CDECL
rnd4f(
float *store )
{
store[0] = floorf( store[0] + 0.5f );
store[1] = floorf( store[1] + 0.5f );
store[2] = floorf( store[2] + 0.5f );
store[3] = floorf( store[3] + 0.5f );
}
static void
emit_rnd(
struct x86_function *func,
unsigned xmm_save,
unsigned xmm_dst )
{
emit_func_call_dst(
func,
xmm_save,
xmm_dst,
rnd4f );
}
static void
emit_rsqrt(
struct x86_function *func,
@ -1662,7 +1685,11 @@ emit_instruction(
break;
case TGSI_OPCODE_ROUND:
return 0;
FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
FETCH( func, *inst, 0, 0, chan_index );
emit_rnd( func, 0, 0 );
STORE( func, *inst, 0, 0, chan_index );
}
break;
case TGSI_OPCODE_EXPBASE2: