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-rw-r--r--media/libav/libavutil/x86/intreadwrite.h97
1 files changed, 97 insertions, 0 deletions
diff --git a/media/libav/libavutil/x86/intreadwrite.h b/media/libav/libavutil/x86/intreadwrite.h
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+++ b/media/libav/libavutil/x86/intreadwrite.h
@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2010 Alexander Strange <astrange@ithinksw.com>
+ *
+ * This file is part of Libav.
+ *
+ * Libav 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.
+ *
+ * Libav 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 Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_X86_INTREADWRITE_H
+#define AVUTIL_X86_INTREADWRITE_H
+
+#include <stdint.h>
+#include "config.h"
+#include "libavutil/attributes.h"
+
+#if HAVE_MMX
+
+#if !HAVE_FAST_64BIT && defined(__MMX__)
+
+#define AV_COPY64 AV_COPY64
+static av_always_inline void AV_COPY64(void *d, const void *s)
+{
+ __asm__("movq %1, %%mm0 \n\t"
+ "movq %%mm0, %0 \n\t"
+ : "=m"(*(uint64_t*)d)
+ : "m" (*(const uint64_t*)s)
+ : "mm0");
+}
+
+#define AV_SWAP64 AV_SWAP64
+static av_always_inline void AV_SWAP64(void *a, void *b)
+{
+ __asm__("movq %1, %%mm0 \n\t"
+ "movq %0, %%mm1 \n\t"
+ "movq %%mm0, %0 \n\t"
+ "movq %%mm1, %1 \n\t"
+ : "+m"(*(uint64_t*)a), "+m"(*(uint64_t*)b)
+ ::"mm0", "mm1");
+}
+
+#define AV_ZERO64 AV_ZERO64
+static av_always_inline void AV_ZERO64(void *d)
+{
+ __asm__("pxor %%mm0, %%mm0 \n\t"
+ "movq %%mm0, %0 \n\t"
+ : "=m"(*(uint64_t*)d)
+ :: "mm0");
+}
+
+#endif /* !HAVE_FAST_64BIT && defined(__MMX__) */
+
+#ifdef __SSE__
+
+#define AV_COPY128 AV_COPY128
+static av_always_inline void AV_COPY128(void *d, const void *s)
+{
+ struct v {uint64_t v[2];};
+
+ __asm__("movaps %1, %%xmm0 \n\t"
+ "movaps %%xmm0, %0 \n\t"
+ : "=m"(*(struct v*)d)
+ : "m" (*(const struct v*)s)
+ : "xmm0");
+}
+
+#endif /* __SSE__ */
+
+#ifdef __SSE2__
+
+#define AV_ZERO128 AV_ZERO128
+static av_always_inline void AV_ZERO128(void *d)
+{
+ struct v {uint64_t v[2];};
+
+ __asm__("pxor %%xmm0, %%xmm0 \n\t"
+ "movdqa %%xmm0, %0 \n\t"
+ : "=m"(*(struct v*)d)
+ :: "xmm0");
+}
+
+#endif /* __SSE2__ */
+
+#endif /* HAVE_MMX */
+
+#endif /* AVUTIL_X86_INTREADWRITE_H */