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authormichal <michal@quad.(none)>2008-11-05 11:48:56 +0100
committerAlan Hourihane <alanh@tungstengraphics.com>2008-11-05 11:59:36 +0000
commitde2ace201fe26d36a2a75211a7d8447940a47fbe (patch)
tree00c937dfa94b53b62afbba1d83105271fe8f3b46 /src/gallium/auxiliary/tgsi
parent2382dc8aff9983da9ef1be03de38d4ab82105b19 (diff)
tgsi: Implement OPCODE_TRUNC.
Diffstat (limited to 'src/gallium/auxiliary/tgsi')
-rw-r--r--src/gallium/auxiliary/tgsi/tgsi_sse2.c18
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 f79170b9d6..47e52c8424 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_sse2.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_sse2.c
@@ -784,6 +784,17 @@ 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 )
@@ -2104,7 +2115,12 @@ 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: