1 files changed, 60 insertions, 0 deletions
diff --git a/libavcodec/x86/blockdsp_init.c b/libavcodec/x86/blockdsp_init.c
new file mode 100644
index 0000000000..7780184af6
--- /dev/null
+++ b/libavcodec/x86/blockdsp_init.c
@@ -0,0 +1,60 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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.
+ *
+ * FFmpeg 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 FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/internal.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/blockdsp.h"
+#include "libavcodec/version.h"
+
+void ff_clear_block_mmx(int16_t *block);
+void ff_clear_block_sse(int16_t *block);
+void ff_clear_blocks_mmx(int16_t *blocks);
+void ff_clear_blocks_sse(int16_t *blocks);
+
+#if FF_API_XVMC
+av_cold void ff_blockdsp_init_x86(BlockDSPContext *c, unsigned high_bit_depth,
+                                  AVCodecContext *avctx)
+#else
+av_cold void ff_blockdsp_init_x86(BlockDSPContext *c, unsigned high_bit_depth)
+#endif /* FF_API_XVMC */
+{
+#if HAVE_YASM
+    int cpu_flags = av_get_cpu_flags();
+
+    if (!high_bit_depth) {
+        if (EXTERNAL_MMX(cpu_flags)) {
+            c->clear_block  = ff_clear_block_mmx;
+            c->clear_blocks = ff_clear_blocks_mmx;
+        }
+
+    /* XvMCCreateBlocks() may not allocate 16-byte aligned blocks */
+    if (CONFIG_XVMC && avctx->hwaccel && avctx->hwaccel->decode_mb)
+        return;
+
+        if (EXTERNAL_SSE(cpu_flags)) {
+            c->clear_block  = ff_clear_block_sse;
+            c->clear_blocks = ff_clear_blocks_sse;
+        }
+    }
+#endif /* HAVE_YASM */
+}