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authorKeith Whitwell <keithw@vmware.com>2009-08-24 11:32:06 +0100
committerKeith Whitwell <keithw@vmware.com>2009-08-24 11:33:38 +0100
commitb570a7e6b6ebd05e94fd91f2df53de7d2e2e05d2 (patch)
tree9faf9441357e0797292b25c8ab8673366ab0c05e
parent7ee4f32dcdd4cc935ed48ffb46ecc6678047958e (diff)
tgsi: add generic instruction builder
When translating an incoming shader (rather than building one from scratch) it's preferable to be able to call a single, generic instruction emitter rather than figuring out which of the opcode-specific functions to call.
-rw-r--r--src/gallium/auxiliary/tgsi/tgsi_ureg.c23
-rw-r--r--src/gallium/auxiliary/tgsi/tgsi_ureg.h10
2 files changed, 33 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/tgsi/tgsi_ureg.c b/src/gallium/auxiliary/tgsi/tgsi_ureg.c
index 7922931361..7762243ef8 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_ureg.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_ureg.c
@@ -605,6 +605,29 @@ ureg_fixup_insn_size(struct ureg_program *ureg,
}
+void
+ureg_insn(struct ureg_program *ureg,
+ unsigned opcode,
+ const struct ureg_dst *dst,
+ unsigned nr_dst,
+ const struct ureg_src *src,
+ unsigned nr_src )
+{
+ unsigned insn, i;
+ boolean saturate;
+
+ saturate = nr_dst ? dst[0].Saturate : FALSE;
+
+ insn = ureg_emit_insn( ureg, opcode, saturate, nr_dst, nr_src );
+
+ for (i = 0; i < nr_dst; i++)
+ ureg_emit_dst( ureg, dst[i] );
+
+ for (i = 0; i < nr_src; i++)
+ ureg_emit_src( ureg, src[i] );
+
+ ureg_fixup_insn_size( ureg, insn );
+}
diff --git a/src/gallium/auxiliary/tgsi/tgsi_ureg.h b/src/gallium/auxiliary/tgsi/tgsi_ureg.h
index 5a48bb7a35..fbf174b209 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_ureg.h
+++ b/src/gallium/auxiliary/tgsi/tgsi_ureg.h
@@ -199,6 +199,16 @@ ureg_fixup_label(struct ureg_program *ureg,
unsigned instruction_number );
+/* Generic instruction emitter. Use if you need to pass the opcode as
+ * a parameter, rather than using the emit_OP() varients below.
+ */
+void
+ureg_insn(struct ureg_program *ureg,
+ unsigned opcode,
+ const struct ureg_dst *dst,
+ unsigned nr_dst,
+ const struct ureg_src *src,
+ unsigned nr_src );
/***********************************************************************