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authorBrian Paul <brianp@vmware.com>2010-12-08 18:20:05 -0700
committerBrian Paul <brianp@vmware.com>2010-12-08 18:20:05 -0700
commite8154eeae52c09783f537f5584e6fb57b3c5efb6 (patch)
treefc2d15dfe7bdd88967a511ea5f2087be563b3749
parentb550d8d76b42ef5ba5e8293dcc24220d5b683369 (diff)
tgsi/sse: add support for system values
-rw-r--r--src/gallium/auxiliary/tgsi/tgsi_sse2.c54
1 files changed, 51 insertions, 3 deletions
diff --git a/src/gallium/auxiliary/tgsi/tgsi_sse2.c b/src/gallium/auxiliary/tgsi/tgsi_sse2.c
index 086d983a73..3f2cda860e 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_sse2.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_sse2.c
@@ -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.
@@ -229,6 +237,16 @@ get_temp(
}
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,
unsigned chan,
@@ -423,6 +441,30 @@ emit_tempf(
}
/**
+ * 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
* \param vec the src input/attribute coefficient index
@@ -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;