swr: add int16_to_int32_mmx/sse

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 47 insertions, 0 deletions

diff --git a/libswresample/x86/swresample_x86.c b/libswresample/x86/swresample_x86.c
new file mode 100644
index 0000000000..5c8d8290cd
--- /dev/null
+++ b/libswresample/x86/swresample_x86.c
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2012 Michael Niedermayer (michaelni@gmx.at)
+ *
+ * This file is part of libswresample
+ *
+ * libswresample is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * libswresample is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with libswresample; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libswresample/swresample_internal.h"
+#include "libswresample/audioconvert.h"
+
+#define MULTI_CAPS_FUNC_DECL(cap) \
+    void ff_int16_to_int32_ ## cap(uint8_t **dst, const uint8_t **src, int len);
+MULTI_CAPS_FUNC_DECL(mmx)
+MULTI_CAPS_FUNC_DECL(sse)
+
+void swri_audio_convert_init_x86(struct AudioConvert *ac,
+                                 enum AVSampleFormat out_fmt,
+                                 enum AVSampleFormat in_fmt,
+                                 int channels){
+    int mm_flags = av_get_cpu_flags();
+
+    ac->simd_f= NULL;
+
+//FIXME add memcpy case
+
+#define MULTI_CAPS_FUNC(flag, cap) \
+    if (mm_flags & flag) {\
+        if(   out_fmt == AV_SAMPLE_FMT_S32  && in_fmt == AV_SAMPLE_FMT_S16 || out_fmt == AV_SAMPLE_FMT_S32P && in_fmt == AV_SAMPLE_FMT_S16P)\
+            ac->simd_f =  ff_int16_to_int32_ ## cap;\
+    }
+
+MULTI_CAPS_FUNC(AV_CPU_FLAG_MMX, mmx)
+MULTI_CAPS_FUNC(AV_CPU_FLAG_SSE, sse)
+}