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authorMohamed Tarek <mt@rockbox.org>2010-04-27 18:04:34 +0000
committerMohamed Tarek <mt@rockbox.org>2010-04-27 18:04:34 +0000
commitdda7fab1d65e73a6bdbdac1b1d37330b8f0085aa (patch)
tree6446710d45643347d1f301bbfcb914e3ec4a39e4 /apps/codecs/libwmapro/libavutil/intreadwrite.h
parentf96406c5f3aca04f3c0ab95275d857288fd8c2ea (diff)
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Add libwmapro to trunk.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25739 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'apps/codecs/libwmapro/libavutil/intreadwrite.h')
-rw-r--r--apps/codecs/libwmapro/libavutil/intreadwrite.h192
1 files changed, 192 insertions, 0 deletions
diff --git a/apps/codecs/libwmapro/libavutil/intreadwrite.h b/apps/codecs/libwmapro/libavutil/intreadwrite.h
new file mode 100644
index 0000000..d27a500
--- /dev/null
+++ b/apps/codecs/libwmapro/libavutil/intreadwrite.h
@@ -0,0 +1,192 @@
+/*
+ * 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
+ */
+
+#ifndef AVUTIL_INTREADWRITE_H
+#define AVUTIL_INTREADWRITE_H
+
+#include <stdint.h>
+//#include "ffmpeg_config.h"
+#include "bswap.h"
+
+#ifdef __GNUC__
+
+struct unaligned_64 { uint64_t l; } __attribute__((packed));
+struct unaligned_32 { uint32_t l; } __attribute__((packed));
+struct unaligned_16 { uint16_t l; } __attribute__((packed));
+
+#define AV_RN16(a) (((const struct unaligned_16 *) (a))->l)
+#define AV_RN32(a) (((const struct unaligned_32 *) (a))->l)
+#define AV_RN64(a) (((const struct unaligned_64 *) (a))->l)
+
+#define AV_WN16(a, b) (((struct unaligned_16 *) (a))->l) = (b)
+#define AV_WN32(a, b) (((struct unaligned_32 *) (a))->l) = (b)
+#define AV_WN64(a, b) (((struct unaligned_64 *) (a))->l) = (b)
+
+#elif defined(__DECC)
+
+#define AV_RN16(a) (*((const __unaligned uint16_t*)(a)))
+#define AV_RN32(a) (*((const __unaligned uint32_t*)(a)))
+#define AV_RN64(a) (*((const __unaligned uint64_t*)(a)))
+
+#define AV_WN16(a, b) *((__unaligned uint16_t*)(a)) = (b)
+#define AV_WN32(a, b) *((__unaligned uint32_t*)(a)) = (b)
+#define AV_WN64(a, b) *((__unaligned uint64_t*)(a)) = (b)
+
+#else
+
+#define AV_RN16(a) (*((const uint16_t*)(a)))
+#define AV_RN32(a) (*((const uint32_t*)(a)))
+#define AV_RN64(a) (*((const uint64_t*)(a)))
+
+#define AV_WN16(a, b) *((uint16_t*)(a)) = (b)
+#define AV_WN32(a, b) *((uint32_t*)(a)) = (b)
+#define AV_WN64(a, b) *((uint64_t*)(a)) = (b)
+
+#endif /* !__GNUC__ */
+
+/* endian macros */
+#define AV_RB8(x) (((const uint8_t*)(x))[0])
+#define AV_WB8(p, d) do { ((uint8_t*)(p))[0] = (d); } while(0)
+
+#define AV_RL8(x) AV_RB8(x)
+#define AV_WL8(p, d) AV_WB8(p, d)
+
+#if HAVE_FAST_UNALIGNED
+# ifdef WORDS_BIGENDIAN
+# define AV_RB16(x) AV_RN16(x)
+# define AV_WB16(p, d) AV_WN16(p, d)
+
+# define AV_RL16(x) bswap_16(AV_RN16(x))
+# define AV_WL16(p, d) AV_WN16(p, bswap_16(d))
+
+# define AV_RB32(x) AV_RN32(x)
+# define AV_WB32(p, d) AV_WN32(p, d)
+
+# define AV_RL32(x) bswap_32(AV_RN32(x))
+# define AV_WL32(p, d) AV_WN32(p, bswap_32(d))
+
+# define AV_RB64(x) AV_RN64(x)
+# define AV_WB64(p, d) AV_WN64(p, d)
+
+# define AV_RL64(x) bswap_64(AV_RN64(x))
+# define AV_WL64(p, d) AV_WN64(p, bswap_64(d))
+# else /* WORDS_BIGENDIAN */
+# define AV_RB16(x) bswap_16(AV_RN16(x))
+# define AV_WB16(p, d) AV_WN16(p, bswap_16(d))
+
+# define AV_RL16(x) AV_RN16(x)
+# define AV_WL16(p, d) AV_WN16(p, d)
+
+# define AV_RB32(x) bswap_32(AV_RN32(x))
+# define AV_WB32(p, d) AV_WN32(p, bswap_32(d))
+
+# define AV_RL32(x) AV_RN32(x)
+# define AV_WL32(p, d) AV_WN32(p, d)
+
+# define AV_RB64(x) bswap_64(AV_RN64(x))
+# define AV_WB64(p, d) AV_WN64(p, bswap_64(d))
+
+# define AV_RL64(x) AV_RN64(x)
+# define AV_WL64(p, d) AV_WN64(p, d)
+# endif
+#else /* HAVE_FAST_UNALIGNED */
+#define AV_RB16(x) ((((const uint8_t*)(x))[0] << 8) | ((const uint8_t*)(x))[1])
+#define AV_WB16(p, d) do { \
+ ((uint8_t*)(p))[1] = (d); \
+ ((uint8_t*)(p))[0] = (d)>>8; } while(0)
+
+#define AV_RL16(x) ((((const uint8_t*)(x))[1] << 8) | \
+ ((const uint8_t*)(x))[0])
+#define AV_WL16(p, d) do { \
+ ((uint8_t*)(p))[0] = (d); \
+ ((uint8_t*)(p))[1] = (d)>>8; } while(0)
+
+#define AV_RB32(x) ((((const uint8_t*)(x))[0] << 24) | \
+ (((const uint8_t*)(x))[1] << 16) | \
+ (((const uint8_t*)(x))[2] << 8) | \
+ ((const uint8_t*)(x))[3])
+#define AV_WB32(p, d) do { \
+ ((uint8_t*)(p))[3] = (d); \
+ ((uint8_t*)(p))[2] = (d)>>8; \
+ ((uint8_t*)(p))[1] = (d)>>16; \
+ ((uint8_t*)(p))[0] = (d)>>24; } while(0)
+
+#define AV_RL32(x) ((((const uint8_t*)(x))[3] << 24) | \
+ (((const uint8_t*)(x))[2] << 16) | \
+ (((const uint8_t*)(x))[1] << 8) | \
+ ((const uint8_t*)(x))[0])
+#define AV_WL32(p, d) do { \
+ ((uint8_t*)(p))[0] = (d); \
+ ((uint8_t*)(p))[1] = (d)>>8; \
+ ((uint8_t*)(p))[2] = (d)>>16; \
+ ((uint8_t*)(p))[3] = (d)>>24; } while(0)
+
+#define AV_RB64(x) (((uint64_t)((const uint8_t*)(x))[0] << 56) | \
+ ((uint64_t)((const uint8_t*)(x))[1] << 48) | \
+ ((uint64_t)((const uint8_t*)(x))[2] << 40) | \
+ ((uint64_t)((const uint8_t*)(x))[3] << 32) | \
+ ((uint64_t)((const uint8_t*)(x))[4] << 24) | \
+ ((uint64_t)((const uint8_t*)(x))[5] << 16) | \
+ ((uint64_t)((const uint8_t*)(x))[6] << 8) | \
+ (uint64_t)((const uint8_t*)(x))[7])
+#define AV_WB64(p, d) do { \
+ ((uint8_t*)(p))[7] = (d); \
+ ((uint8_t*)(p))[6] = (d)>>8; \
+ ((uint8_t*)(p))[5] = (d)>>16; \
+ ((uint8_t*)(p))[4] = (d)>>24; \
+ ((uint8_t*)(p))[3] = (d)>>32; \
+ ((uint8_t*)(p))[2] = (d)>>40; \
+ ((uint8_t*)(p))[1] = (d)>>48; \
+ ((uint8_t*)(p))[0] = (d)>>56; } while(0)
+
+#define AV_RL64(x) (((uint64_t)((const uint8_t*)(x))[7] << 56) | \
+ ((uint64_t)((const uint8_t*)(x))[6] << 48) | \
+ ((uint64_t)((const uint8_t*)(x))[5] << 40) | \
+ ((uint64_t)((const uint8_t*)(x))[4] << 32) | \
+ ((uint64_t)((const uint8_t*)(x))[3] << 24) | \
+ ((uint64_t)((const uint8_t*)(x))[2] << 16) | \
+ ((uint64_t)((const uint8_t*)(x))[1] << 8) | \
+ (uint64_t)((const uint8_t*)(x))[0])
+#define AV_WL64(p, d) do { \
+ ((uint8_t*)(p))[0] = (d); \
+ ((uint8_t*)(p))[1] = (d)>>8; \
+ ((uint8_t*)(p))[2] = (d)>>16; \
+ ((uint8_t*)(p))[3] = (d)>>24; \
+ ((uint8_t*)(p))[4] = (d)>>32; \
+ ((uint8_t*)(p))[5] = (d)>>40; \
+ ((uint8_t*)(p))[6] = (d)>>48; \
+ ((uint8_t*)(p))[7] = (d)>>56; } while(0)
+#endif /* HAVE_FAST_UNALIGNED */
+
+#define AV_RB24(x) ((((const uint8_t*)(x))[0] << 16) | \
+ (((const uint8_t*)(x))[1] << 8) | \
+ ((const uint8_t*)(x))[2])
+#define AV_WB24(p, d) do { \
+ ((uint8_t*)(p))[2] = (d); \
+ ((uint8_t*)(p))[1] = (d)>>8; \
+ ((uint8_t*)(p))[0] = (d)>>16; } while(0)
+
+#define AV_RL24(x) ((((const uint8_t*)(x))[2] << 16) | \
+ (((const uint8_t*)(x))[1] << 8) | \
+ ((const uint8_t*)(x))[0])
+#define AV_WL24(p, d) do { \
+ ((uint8_t*)(p))[0] = (d); \
+ ((uint8_t*)(p))[1] = (d)>>8; \
+ ((uint8_t*)(p))[2] = (d)>>16; } while(0)
+
+#endif /* AVUTIL_INTREADWRITE_H */