#ifndef _WIMLIB_UNALIGNED_H
#define _WIMLIB_UNALIGNED_H
-#include "compiler.h"
-#include "endianness.h"
-#include "types.h"
+#include "wimlib/compiler.h"
+#include "wimlib/endianness.h"
+#include "wimlib/types.h"
#define DEFINE_UNALIGNED_TYPE(type) \
struct type##_unaligned { \
((struct type##_unaligned *)p)->v = val; \
}
+DEFINE_UNALIGNED_TYPE(u16);
+DEFINE_UNALIGNED_TYPE(u32);
+DEFINE_UNALIGNED_TYPE(u64);
DEFINE_UNALIGNED_TYPE(le16);
DEFINE_UNALIGNED_TYPE(le32);
DEFINE_UNALIGNED_TYPE(le64);
+DEFINE_UNALIGNED_TYPE(be16);
+DEFINE_UNALIGNED_TYPE(be32);
+DEFINE_UNALIGNED_TYPE(be64);
DEFINE_UNALIGNED_TYPE(size_t);
+DEFINE_UNALIGNED_TYPE(machine_word_t);
+
+#define load_word_unaligned load_machine_word_t_unaligned
+#define store_word_unaligned store_machine_word_t_unaligned
+
+static inline void
+copy_word_unaligned(const void *src, void *dst)
+{
+ store_word_unaligned(load_word_unaligned(src), dst);
+}
+
+static inline machine_word_t
+repeat_byte(u8 b)
+{
+ machine_word_t v;
+
+ BUILD_BUG_ON(WORDSIZE != 4 && WORDSIZE != 8);
+
+ v = b;
+ v |= v << 8;
+ v |= v << 16;
+ v |= v << ((WORDSIZE == 8) ? 32 : 0);
+ return v;
+}
+
+static inline u16
+get_unaligned_u16_le(const void *p)
+{
+ u16 v;
+
+ if (UNALIGNED_ACCESS_IS_FAST) {
+ v = le16_to_cpu(load_le16_unaligned(p));
+ } else {
+ const u8 *p8 = p;
+ v = 0;
+ v |= (u16)p8[0] << 0;
+ v |= (u16)p8[1] << 8;
+ }
+ return v;
+}
+
+static inline u32
+get_unaligned_u32_le(const void *p)
+{
+ u32 v;
+
+ if (UNALIGNED_ACCESS_IS_FAST) {
+ v = le32_to_cpu(load_le32_unaligned(p));
+ } else {
+ const u8 *p8 = p;
+ v = 0;
+ v |= (u32)p8[0] << 0;
+ v |= (u32)p8[1] << 8;
+ v |= (u32)p8[2] << 16;
+ v |= (u32)p8[3] << 24;
+ }
+ return v;
+}
+
+static inline void
+put_unaligned_u16_le(u16 v, void *p)
+{
+ if (UNALIGNED_ACCESS_IS_FAST) {
+ store_le16_unaligned(cpu_to_le16(v), p);
+ } else {
+ u8 *p8 = p;
+ p8[0] = (v >> 0) & 0xFF;
+ p8[1] = (v >> 8) & 0xFF;
+ }
+}
+
+static inline void
+put_unaligned_u32_le(u32 v, void *p)
+{
+ if (UNALIGNED_ACCESS_IS_FAST) {
+ store_le32_unaligned(cpu_to_le32(v), p);
+ } else {
+ u8 *p8 = p;
+ p8[0] = (v >> 0) & 0xFF;
+ p8[1] = (v >> 8) & 0xFF;
+ p8[2] = (v >> 16) & 0xFF;
+ p8[3] = (v >> 24) & 0xFF;
+ }
+}
#endif /* _WIMLIB_UNALIGNED_H */