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tgsi: add ISSG support

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This adds integer version of SSG that GLSL 1.30 can produce.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
This commit is contained in:
Dave Airlie 2012-01-09 11:49:34 +00:00
parent 0fe2b397bb
commit b6cbc28533
3 changed files with 17 additions and 1 deletions
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14
src/gallium/auxiliary/tgsi/tgsi_exec.c
View file

@ -374,6 +374,16 @@ micro_sgn(union tgsi_exec_channel *dst,
dst->f[3] = src->f[3] < 0.0f ? -1.0f : src->f[3] > 0.0f ? 1.0f : 0.0f;
}
static void
micro_isgn(union tgsi_exec_channel *dst,
const union tgsi_exec_channel *src)
{
dst->i[0] = src->i[0] < 0 ? -1 : src->i[0] > 0 ? 1 : 0;
dst->i[1] = src->i[1] < 0 ? -1 : src->i[1] > 0 ? 1 : 0;
dst->i[2] = src->i[2] < 0 ? -1 : src->i[2] > 0 ? 1 : 0;
dst->i[3] = src->i[3] < 0 ? -1 : src->i[3] > 0 ? 1 : 0;
}
static void
micro_sgt(union tgsi_exec_channel *dst,
const union tgsi_exec_channel *src0,
@ -4207,6 +4217,10 @@ exec_instruction(
exec_vector_unary(mach, inst, micro_iabs, TGSI_EXEC_DATA_INT, TGSI_EXEC_DATA_INT);
break;
case TGSI_OPCODE_ISSG:
exec_vector_unary(mach, inst, micro_isgn, TGSI_EXEC_DATA_INT, TGSI_EXEC_DATA_INT);
break;
default:
assert( 0 );
}

1
src/gallium/auxiliary/tgsi/tgsi_info.c
View file

@ -193,6 +193,7 @@ static const struct tgsi_opcode_info opcode_info[TGSI_OPCODE_LAST] =
{ 1, 1, 0, 0, 0, 0, "UARL", TGSI_OPCODE_UARL },
{ 1, 3, 0, 0, 0, 0, "UCMP", TGSI_OPCODE_UCMP },
{ 1, 1, 0, 0, 0, 0, "IABS", TGSI_OPCODE_IABS },
{ 1, 1, 0, 0, 0, 0, "ISSG", TGSI_OPCODE_ISSG },
};
const struct tgsi_opcode_info *

3
src/gallium/include/pipe/p_shader_tokens.h
View file

@ -379,8 +379,9 @@ struct tgsi_property_data {
#define TGSI_OPCODE_UARL 157
#define TGSI_OPCODE_UCMP 158
#define TGSI_OPCODE_IABS 159
#define TGSI_OPCODE_ISSG 160
#define TGSI_OPCODE_LAST 160
#define TGSI_OPCODE_LAST 161
#define TGSI_SAT_NONE 0 /* do not saturate */
#define TGSI_SAT_ZERO_ONE 1 /* clamp to [0,1] */