user/libtheora: pull in, fix up

1 files changed, 31 insertions, 0 deletions

diff --git a/user/libtheora/fix-mmx.patch b/user/libtheora/fix-mmx.patch
new file mode 100644
index 000000000..63fb9f76e
--- /dev/null
+++ b/user/libtheora/fix-mmx.patch
@@ -0,0 +1,31 @@
+http://bugs.alpinelinux.org/issues/6132
+https://trac.xiph.org/ticket/2287
+
+patch rebased for libtheory 1.1.1 stable
+
+diff -ru libtheora-1.1.1.orig/lib/encode.c libtheora-1.1.1/lib/encode.c
+--- libtheora-1.1.1.orig/lib/encode.c	2009-08-22 18:14:04.000000000 +0000
++++ libtheora-1.1.1/lib/encode.c	2016-09-15 05:27:02.065785527 +0000
+@@ -864,6 +864,9 @@
+ }
+ 
+ static void oc_enc_frame_pack(oc_enc_ctx *_enc){
++  /*musl libc malloc()/realloc() calls might use floating point, so make sure
++     we've cleared the MMX state for them.*/
++  oc_restore_fpu(&_enc->state);
+   oggpackB_reset(&_enc->opb);
+   /*Only proceed if we have some coded blocks.
+     If there are no coded blocks, we can drop this frame simply by emitting a
+diff -ru libtheora-1.1.1.orig/lib/decode.c libtheora-1.1.1/lib/decode.c
+--- libtheora-1.1.1.orig/lib/decode.c	2009-09-26 20:55:21.000000000 +0000
++++ libtheora-1.1.1/lib/decode.c	2016-09-15 05:29:45.912196850 +0000
+@@ -1181,6 +1181,9 @@
+ 
+ 
+ static int oc_dec_postprocess_init(oc_dec_ctx *_dec){
++  /*musl libc malloc()/realloc() calls might use floating point, so make sure
++     we've cleared the MMX state for them.*/
++  oc_restore_fpu(&_dec->state);
+   /*pp_level 0: disabled; free any memory used and return*/
+   if(_dec->pp_level<=OC_PP_LEVEL_DISABLED){
+     if(_dec->dc_qis!=NULL){