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tgsi: Implement OPCODE_SSG/SGN.

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This commit is contained in:
Michal Krol 2008-11-26 13:54:28 +01:00
parent adf14090fb
commit 823aac36d5
2 changed files with 46 additions and 2 deletions
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18
src/gallium/auxiliary/tgsi/tgsi_exec.c
View file

@ -828,6 +828,17 @@ micro_rnd(
dst->f[3] = floorf( src->f[3] + 0.5f );
}
static void
micro_sgn(
union tgsi_exec_channel *dst,
const union tgsi_exec_channel *src )
{
dst->f[0] = src->f[0] < 0.0f ? -1.0f : src->f[0] > 0.0f ? 1.0f : 0.0f;
dst->f[1] = src->f[1] < 0.0f ? -1.0f : src->f[1] > 0.0f ? 1.0f : 0.0f;
dst->f[2] = src->f[2] < 0.0f ? -1.0f : src->f[2] > 0.0f ? 1.0f : 0.0f;
dst->f[3] = src->f[3] < 0.0f ? -1.0f : src->f[3] > 0.0f ? 1.0f : 0.0f;
}
static void
micro_shl(
union tgsi_exec_channel *dst,
@ -2480,7 +2491,12 @@ exec_instruction(
break;
case TGSI_OPCODE_SSG:
assert (0);
/* TGSI_OPCODE_SGN */
FOR_EACH_ENABLED_CHANNEL( *inst, chan_index ) {
FETCH( &r[0], 0, chan_index );
micro_sgn( &r[0], &r[0] );
STORE( &r[0], 0, chan_index );
}
break;
case TGSI_OPCODE_CMP:

30
src/gallium/auxiliary/tgsi/tgsi_sse2.c
View file

@ -1083,6 +1083,29 @@ emit_setsign(
TGSI_EXEC_TEMP_80000000_C ) );
}
static void PIPE_CDECL
sgn4f(
float *store )
{
store[0] = store[0] < 0.0f ? -1.0f : store[0] > 0.0f ? 1.0f : 0.0f;
store[1] = store[1] < 0.0f ? -1.0f : store[1] > 0.0f ? 1.0f : 0.0f;
store[2] = store[2] < 0.0f ? -1.0f : store[2] > 0.0f ? 1.0f : 0.0f;
store[3] = store[3] < 0.0f ? -1.0f : store[3] > 0.0f ? 1.0f : 0.0f;
}
static void
emit_sgn(
struct x86_function *func,
unsigned xmm_save,
unsigned xmm_dst )
{
emit_func_call_dst(
func,
xmm_save,
xmm_dst,
sgn4f );
}
static void PIPE_CDECL
sin4f(
float *store )
@ -2102,7 +2125,12 @@ emit_instruction(
break;
case TGSI_OPCODE_SSG:
return 0;
/* TGSI_OPCODE_SGN */
FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
FETCH( func, *inst, 0, 0, chan_index );
emit_sgn( func, 0, 0 );
STORE( func, *inst, 0, 0, chan_index );
}
break;
case TGSI_OPCODE_CMP: