Mesa (gallium-0.1): tgsi: Implement OPCODE_TRUNC.
MichaŠKról
michal at kemper.freedesktop.org
Wed Nov 5 10:59:47 UTC 2008
Module: Mesa
Branch: gallium-0.1
Commit: 502974b345dae8a3ca641083b4df5183b04ca825
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=502974b345dae8a3ca641083b4df5183b04ca825
Author: michal <michal at quad.(none)>
Date: Wed Nov 5 11:48:56 2008 +0100
tgsi: Implement OPCODE_TRUNC.
---
src/gallium/auxiliary/tgsi/tgsi_sse2.c | 18 +++++++++++++++++-
1 files changed, 17 insertions(+), 1 deletions(-)
diff --git a/src/gallium/auxiliary/tgsi/tgsi_sse2.c b/src/gallium/auxiliary/tgsi/tgsi_sse2.c
index 4681b29..c115956 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_sse2.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_sse2.c
@@ -657,6 +657,17 @@ emit_f2it(
make_xmm( xmm ) );
}
+static void
+emit_i2f(
+ struct x86_function *func,
+ unsigned xmm )
+{
+ sse2_cvtdq2ps(
+ func,
+ make_xmm( xmm ),
+ make_xmm( xmm ) );
+}
+
static void PIPE_CDECL
flr4f(
float *store )
@@ -1967,7 +1978,12 @@ emit_instruction(
break;
case TGSI_OPCODE_TRUNC:
- return 0;
+ FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) {
+ FETCH( func, *inst, 0, 0, chan_index );
+ emit_f2it( func, 0 );
+ emit_i2f( func, 0 );
+ STORE( func, *inst, 0, 0, chan_index );
+ }
break;
case TGSI_OPCODE_SHL:
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