[flac] disable slower assembly code

[Miroslav Lichvar]

commit 35436149fe3e0d7a889ff516eff75c97f78c3627
Author: Miroslav Lichvar <mlichvar at redhat.com>
Date:   Mon Jun 3 13:32:01 2013 +0200

    disable slower assembly code

 flac-no_rice_asm.patch |   27 +++++++++++++++++++++++++++
 flac.spec              |    2 ++
 2 files changed, 29 insertions(+), 0 deletions(-)
---
diff --git a/flac-no_rice_asm.patch b/flac-no_rice_asm.patch
new file mode 100644
index 0000000..18d4fdb
--- /dev/null
+++ b/flac-no_rice_asm.patch
@@ -0,0 +1,27 @@
+From 4e5a0bacf021737fb1a8366ad07dc66f3286b1be Mon Sep 17 00:00:00 2001
+From: Miroslav Lichvar <mlichvar at redhat.com>
+Date: Mon, 3 Jun 2013 13:25:47 +0200
+Subject: [PATCH 2/2] Don't use
+ FLAC__bitreader_read_rice_signed_block_asm_ia32_bswap.
+
+It seems to be slower than the C function.
+---
+ src/libFLAC/stream_decoder.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/libFLAC/stream_decoder.c b/src/libFLAC/stream_decoder.c
+index f987c27..bc9c715 100644
+--- a/src/libFLAC/stream_decoder.c
++++ b/src/libFLAC/stream_decoder.c
+@@ -400,7 +400,7 @@ static FLAC__StreamDecoderInitStatus init_stream_internal_(
+ #ifdef FLAC__CPU_IA32
+ 		FLAC__ASSERT(decoder->private_->cpuinfo.type == FLAC__CPUINFO_TYPE_IA32);
+ #ifdef FLAC__HAS_NASM
+-#if 1 /*@@@@@@ OPT: not clearly faster, needs more testing */
++#if 0 /*@@@@@@ OPT: not clearly faster, needs more testing */
+ 		if(decoder->private_->cpuinfo.data.ia32.bswap)
+ 			decoder->private_->local_bitreader_read_rice_signed_block = FLAC__bitreader_read_rice_signed_block_asm_ia32_bswap;
+ #endif
+-- 
+1.8.1.4
+
diff --git a/flac.spec b/flac.spec
index 29f5091..6ccb739 100644
--- a/flac.spec
+++ b/flac.spec
@@ -18,6 +18,7 @@ BuildRequires: nasm >= 2.0
 %endif
 
 Patch1: flac-metaflac_strcat.patch
+Patch2: flac-no_rice_asm.patch
 
 %description
 FLAC stands for Free Lossless Audio Codec. Grossly oversimplified, FLAC
@@ -57,6 +58,7 @@ will use the Free Lossless Audio Codec.
 %prep
 %setup -q
 %patch1 -p1 -b .metaflac-strcat
+%patch2 -p1 -b .no_rice_asm
 
 %build
 # use our libtool to avoid problems with RPATH