Mesa (master): gallium: Add TGSI_OPCODE_F2U to gallivm backend.
Paul Berry
stereotype441 at kemper.freedesktop.org
Fri Jun 15 16:12:39 UTC 2012
Module: Mesa
Branch: master
Commit: 9d57d483cbcced5051d0dd4d48bbe750b5c15592
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=9d57d483cbcced5051d0dd4d48bbe750b5c15592
Author: Paul Berry <stereotype441 at gmail.com>
Date: Wed Jun 13 15:46:27 2012 -0700
gallium: Add TGSI_OPCODE_F2U to gallivm backend.
Note: for the moment TGSI_OPCODE_F2U is implemented using
lp_build_itrunc() (the same function used to implement
TGSI_OPCODE_F2I). In the long run, we should create an
lp_build_utrunc() function to do the proper conversion. But this
should allow us to limp along with mostly correct behaviour for now.
---
src/gallium/auxiliary/gallivm/lp_bld_tgsi_action.c | 13 +++++++++++++
1 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_action.c b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_action.c
index e0a5180..cbc5945 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_action.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_action.c
@@ -984,6 +984,18 @@ f2i_emit_cpu(
emit_data->args[0]);
}
+/* TGSI_OPCODE_F2U (CPU Only) */
+static void
+f2u_emit_cpu(
+ const struct lp_build_tgsi_action * action,
+ struct lp_build_tgsi_context * bld_base,
+ struct lp_build_emit_data * emit_data)
+{
+ /* FIXME: implement and use lp_build_utrunc() */
+ emit_data->output[emit_data->chan] = lp_build_itrunc(&bld_base->base,
+ emit_data->args[0]);
+}
+
/* TGSI_OPCODE_FLR (CPU Only) */
static void
@@ -1561,6 +1573,7 @@ lp_set_default_actions_cpu(
bld_base->op_actions[TGSI_OPCODE_EX2].emit = ex2_emit_cpu;
bld_base->op_actions[TGSI_OPCODE_EXP].emit = exp_emit_cpu;
bld_base->op_actions[TGSI_OPCODE_F2I].emit = f2i_emit_cpu;
+ bld_base->op_actions[TGSI_OPCODE_F2U].emit = f2u_emit_cpu;
bld_base->op_actions[TGSI_OPCODE_FLR].emit = flr_emit_cpu;
bld_base->op_actions[TGSI_OPCODE_I2F].emit = i2f_emit_cpu;
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