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tgsi/sse: add support for system values

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This commit is contained in:
Brian Paul 2010-12-08 18:20:05 -07:00
parent b550d8d76b
commit e8154eeae5
1 changed files with 51 additions and 3 deletions
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54
src/gallium/auxiliary/tgsi/tgsi_sse2.c
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@ -163,6 +163,14 @@ get_immediate_base( void )
reg_DX );
}
static struct x86_reg
get_system_value_base( void )
{
return x86_make_disp(
get_machine_base(),
Offset(struct tgsi_exec_machine, SystemValue) );
}
/**
* Data access helpers.
@ -228,6 +236,16 @@ get_temp(
(vec * 4 + chan) * 16 );
}
static struct x86_reg
get_system_value(
unsigned vec,
unsigned chan )
{
return x86_make_disp(
get_system_value_base(), /* base */
(vec * 4 + chan) * 4 ); /* byte offset from base */
}
static struct x86_reg
get_coef(
unsigned vec,
@ -422,6 +440,30 @@ emit_tempf(
get_temp( vec, chan ) );
}
/**
* Copy a system value to xmm register
* \param xmm the destination xmm register
* \param vec the source system value register
* \param chan src channel to fetch (X, Y, Z or W)
*/
static void
emit_system_value(
struct x86_function *func,
unsigned xmm,
unsigned vec,
unsigned chan )
{
sse_movss(
func,
make_xmm( xmm ),
get_system_value( vec, chan ) );
sse_shufps(
func,
make_xmm( xmm ),
make_xmm( xmm ),
SHUF( 0, 0, 0, 0 ) );
}
/**
* Load an xmm register with an input attrib coefficient (a0, dadx or dady)
* \param xmm the destination xmm register
@ -1281,8 +1323,15 @@ emit_fetch(
swizzle );
break;
case TGSI_FILE_INPUT:
case TGSI_FILE_SYSTEM_VALUE:
emit_system_value(
func,
xmm,
reg->Register.Index,
swizzle );
break;
case TGSI_FILE_INPUT:
emit_inputf(
func,
xmm,
@ -2636,8 +2685,7 @@ emit_declaration(
struct x86_function *func,
struct tgsi_full_declaration *decl )
{
if( decl->Declaration.File == TGSI_FILE_INPUT ||
decl->Declaration.File == TGSI_FILE_SYSTEM_VALUE ) {
if( decl->Declaration.File == TGSI_FILE_INPUT ) {
unsigned first, last, mask;
unsigned i, j;