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-rw-r--r--src/radeon_macros.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/src/radeon_macros.h b/src/radeon_macros.h
index 3675dc51..afe442ea 100644
--- a/src/radeon_macros.h
+++ b/src/radeon_macros.h
@@ -51,7 +51,23 @@
#include "compiler.h"
+#if HAVE_BYTESWAP_H
#include <byteswap.h>
+#elif defined(USE_SYS_ENDIAN_H)
+#include <sys/endian.h>
+#else
+#define bswap_16(value) \
+ ((((value) & 0xff) << 8) | ((value) >> 8))
+
+#define bswap_32(value) \
+ (((uint32_t)bswap_16((uint16_t)((value) & 0xffff)) << 16) | \
+ (uint32_t)bswap_16((uint16_t)((value) >> 16)))
+
+#define bswap_64(value) \
+ (((uint64_t)bswap_32((uint32_t)((value) & 0xffffffff)) \
+ << 32) | \
+ (uint64_t)bswap_32((uint32_t)((value) >> 32)))
+#endif
#if X_BYTE_ORDER == X_BIG_ENDIAN
#define le32_to_cpu(x) bswap_32(x)