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authorBrian Paul <brian.paul@tungstengraphics.com>2008-04-11 13:44:47 -0600
committerBrian Paul <brian.paul@tungstengraphics.com>2008-04-11 14:19:31 -0600
commit097301395d33d57d19bc942f236b4a8c912cc0cc (patch)
tree671e01efe590eec53825e713a856b1c8e8e6f4cc /src/gallium
parent9e8a85ef670dfb7d356d6066bad4710683a07fd9 (diff)
gallium: comments
Diffstat (limited to 'src/gallium')
-rwxr-xr-xsrc/gallium/auxiliary/tgsi/exec/tgsi_sse2.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/tgsi/exec/tgsi_sse2.c b/src/gallium/auxiliary/tgsi/exec/tgsi_sse2.c
index 35c63feccc..93813f36cb 100755
--- a/src/gallium/auxiliary/tgsi/exec/tgsi_sse2.c
+++ b/src/gallium/auxiliary/tgsi/exec/tgsi_sse2.c
@@ -548,6 +548,12 @@ emit_xorps(
* Data fetch helpers.
*/
+/**
+ * Copy a shader constant to xmm register
+ * \param xmm the destination xmm register
+ * \param vec the src const buffer index
+ * \param chan src channel to fetch (X, Y, Z or W)
+ */
static void
emit_const(
struct x86_function *func,
@@ -566,6 +572,12 @@ emit_const(
SHUF( 0, 0, 0, 0 ) );
}
+/**
+ * Copy a shader input to xmm register
+ * \param xmm the destination xmm register
+ * \param vec the src input attrib
+ * \param chan src channel to fetch (X, Y, Z or W)
+ */
static void
emit_inputf(
struct x86_function *func,
@@ -579,6 +591,12 @@ emit_inputf(
get_input( vec, chan ) );
}
+/**
+ * Store an xmm register to a shader output
+ * \param xmm the source xmm register
+ * \param vec the dest output attrib
+ * \param chan src dest channel to store (X, Y, Z or W)
+ */
static void
emit_output(
struct x86_function *func,
@@ -592,6 +610,12 @@ emit_output(
make_xmm( xmm ) );
}
+/**
+ * Copy a shader temporary to xmm register
+ * \param xmm the destination xmm register
+ * \param vec the src temp register
+ * \param chan src channel to fetch (X, Y, Z or W)
+ */
static void
emit_tempf(
struct x86_function *func,
@@ -605,6 +629,13 @@ emit_tempf(
get_temp( vec, chan ) );
}
+/**
+ * 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
+ * \param chan src channel to fetch (X, Y, Z or W)
+ * \param member 0=a0, 1=dadx, 2=dady
+ */
static void
emit_coef(
struct x86_function *func,