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-rw-r--r--src/Util.c323
1 files changed, 323 insertions, 0 deletions
diff --git a/src/Util.c b/src/Util.c
new file mode 100644
index 0000000..110f1ae
--- /dev/null
+++ b/src/Util.c
@@ -0,0 +1,323 @@
+#include <BH/Util.h>
+#include <string.h>
+
+
+union I16
+{
+ uint16_t u;
+ int16_t s;
+};
+
+
+union I32
+{
+ uint32_t u;
+ int32_t s;
+};
+
+
+union I64
+{
+ uint64_t u;
+ int64_t s;
+};
+
+
+uint16_t BH_Read16LEu(const char *buffer)
+{
+ union I16 tmp;
+ tmp.u = (uint16_t)((unsigned char)buffer[0]);
+ tmp.u |= (uint16_t)((unsigned char)buffer[1]) << 8;
+ return tmp.u;
+}
+
+
+int16_t BH_Read16LEs(const char *buffer)
+{
+ union I16 tmp;
+ tmp.u = (uint16_t)((unsigned char)buffer[0]);
+ tmp.u |= (uint16_t)((unsigned char)buffer[1]) << 8;
+ return tmp.s;
+}
+
+
+uint32_t BH_Read32LEu(const char *buffer)
+{
+ union I32 tmp;
+ tmp.u = (uint32_t)((unsigned char)buffer[0]);
+ tmp.u |= (uint32_t)((unsigned char)buffer[1]) << 8;
+ tmp.u |= (uint32_t)((unsigned char)buffer[2]) << 16;
+ tmp.u |= (uint32_t)((unsigned char)buffer[3]) << 24;
+ return tmp.u;
+}
+
+
+int32_t BH_Read32LEs(const char *buffer)
+{
+ union I32 tmp;
+ tmp.u = (uint32_t)((unsigned char)buffer[0]);
+ tmp.u |= (uint32_t)((unsigned char)buffer[1]) << 8;
+ tmp.u |= (uint32_t)((unsigned char)buffer[2]) << 16;
+ tmp.u |= (uint32_t)((unsigned char)buffer[3]) << 24;
+ return tmp.s;
+}
+
+
+uint64_t BH_Read64LEu(const char *buffer)
+{
+ union I64 tmp;
+ tmp.u = (uint64_t)((unsigned char)buffer[0]);
+ tmp.u |= (uint64_t)((unsigned char)buffer[1]) << 8;
+ tmp.u |= (uint64_t)((unsigned char)buffer[2]) << 16;
+ tmp.u |= (uint64_t)((unsigned char)buffer[3]) << 24;
+ tmp.u |= (uint64_t)((unsigned char)buffer[4]) << 32;
+ tmp.u |= (uint64_t)((unsigned char)buffer[5]) << 40;
+ tmp.u |= (uint64_t)((unsigned char)buffer[6]) << 48;
+ tmp.u |= (uint64_t)((unsigned char)buffer[7]) << 56;
+ return tmp.u;
+}
+
+
+int64_t BH_Read64LEs(const char *buffer)
+{
+ union I64 tmp;
+ tmp.u = (uint64_t)((unsigned char)buffer[0]);
+ tmp.u |= (uint64_t)((unsigned char)buffer[1]) << 8;
+ tmp.u |= (uint64_t)((unsigned char)buffer[2]) << 16;
+ tmp.u |= (uint64_t)((unsigned char)buffer[3]) << 24;
+ tmp.u |= (uint64_t)((unsigned char)buffer[4]) << 32;
+ tmp.u |= (uint64_t)((unsigned char)buffer[5]) << 40;
+ tmp.u |= (uint64_t)((unsigned char)buffer[6]) << 48;
+ tmp.u |= (uint64_t)((unsigned char)buffer[7]) << 56;
+ return tmp.s;
+}
+
+
+uint16_t BH_Read16BEu(const char *buffer)
+{
+ union I16 tmp;
+ tmp.u = (uint16_t)((unsigned char)buffer[0]) << 8;
+ tmp.u |= (uint16_t)((unsigned char)buffer[1]);
+ return tmp.u;
+}
+
+
+int16_t BH_Read16BEs(const char *buffer)
+{
+ union I16 tmp;
+ tmp.u = (uint16_t)((unsigned char)buffer[0]) << 8;
+ tmp.u |= (uint16_t)((unsigned char)buffer[1]);
+ return tmp.s;
+}
+
+uint32_t BH_Read32BEu(const char *buffer)
+{
+ union I32 tmp;
+ tmp.u = (uint32_t)((unsigned char)buffer[0]) << 24;
+ tmp.u |= (uint32_t)((unsigned char)buffer[1]) << 16;
+ tmp.u |= (uint32_t)((unsigned char)buffer[2]) << 8;
+ tmp.u |= (uint32_t)((unsigned char)buffer[3]);
+ return tmp.u;
+}
+
+int32_t BH_Read32BEs(const char *buffer)
+{
+ union I32 tmp;
+ tmp.u = (uint32_t)((unsigned char)buffer[0]) << 24;
+ tmp.u |= (uint32_t)((unsigned char)buffer[1]) << 16;
+ tmp.u |= (uint32_t)((unsigned char)buffer[2]) << 8;
+ tmp.u |= (uint32_t)((unsigned char)buffer[3]);
+ return tmp.s;
+}
+
+uint64_t BH_Read64BEu(const char *buffer)
+{
+ union I64 tmp;
+ tmp.u = (uint64_t)((unsigned char)buffer[0]) << 56;
+ tmp.u |= (uint64_t)((unsigned char)buffer[1]) << 48;
+ tmp.u |= (uint64_t)((unsigned char)buffer[2]) << 40;
+ tmp.u |= (uint64_t)((unsigned char)buffer[3]) << 32;
+ tmp.u |= (uint64_t)((unsigned char)buffer[4]) << 24;
+ tmp.u |= (uint64_t)((unsigned char)buffer[5]) << 16;
+ tmp.u |= (uint64_t)((unsigned char)buffer[6]) << 8;
+ tmp.u |= (uint64_t)((unsigned char)buffer[7]);
+ return tmp.u;
+}
+
+int64_t BH_Read64BEs(const char *buffer)
+{
+ union I64 tmp;
+ tmp.u = (uint64_t)((unsigned char)buffer[0]) << 56;
+ tmp.u |= (uint64_t)((unsigned char)buffer[1]) << 48;
+ tmp.u |= (uint64_t)((unsigned char)buffer[2]) << 40;
+ tmp.u |= (uint64_t)((unsigned char)buffer[3]) << 32;
+ tmp.u |= (uint64_t)((unsigned char)buffer[4]) << 24;
+ tmp.u |= (uint64_t)((unsigned char)buffer[5]) << 16;
+ tmp.u |= (uint64_t)((unsigned char)buffer[6]) << 8;
+ tmp.u |= (uint64_t)((unsigned char)buffer[7]);
+ return tmp.s;
+}
+
+
+void BH_Write16LEu(char *buffer,
+ uint16_t value)
+{
+ union I16 tmp;
+ tmp.u = value;
+
+ ((unsigned char *)buffer)[0] = (tmp.u) & 0xFF;
+ ((unsigned char *)buffer)[1] = (tmp.u >> 8) & 0xFF;
+}
+
+
+void BH_Write16LEs(char *buffer,
+ int16_t value)
+{
+ union I16 tmp;
+ tmp.s = value;
+
+ ((unsigned char *)buffer)[0] = (tmp.u) & 0xFF;
+ ((unsigned char *)buffer)[1] = (tmp.u >> 8) & 0xFF;
+}
+
+
+void BH_Write32LEu(char *buffer,
+ uint32_t value)
+{
+ union I32 tmp;
+ tmp.u = value;
+
+ ((unsigned char *)buffer)[0] = (tmp.u) & 0xFF;
+ ((unsigned char *)buffer)[1] = (tmp.u >> 8) & 0xFF;
+ ((unsigned char *)buffer)[2] = (tmp.u >> 16) & 0xFF;
+ ((unsigned char *)buffer)[3] = (tmp.u >> 24) & 0xFF;
+}
+
+
+void BH_Write32LEs(char *buffer,
+ int32_t value)
+{
+ union I32 tmp;
+ tmp.s = value;
+
+ ((unsigned char *)buffer)[0] = (tmp.u) & 0xFF;
+ ((unsigned char *)buffer)[1] = (tmp.u >> 8) & 0xFF;
+ ((unsigned char *)buffer)[2] = (tmp.u >> 16) & 0xFF;
+ ((unsigned char *)buffer)[3] = (tmp.u >> 24) & 0xFF;
+}
+
+
+void BH_Write64LEu(char *buffer,
+ uint64_t value)
+{
+ union I64 tmp;
+ tmp.u = value;
+
+ ((unsigned char *)buffer)[0] = (tmp.u) & 0xFF;
+ ((unsigned char *)buffer)[1] = (tmp.u >> 8) & 0xFF;
+ ((unsigned char *)buffer)[2] = (tmp.u >> 16) & 0xFF;
+ ((unsigned char *)buffer)[3] = (tmp.u >> 24) & 0xFF;
+ ((unsigned char *)buffer)[4] = (tmp.u >> 32) & 0xFF;
+ ((unsigned char *)buffer)[5] = (tmp.u >> 40) & 0xFF;
+ ((unsigned char *)buffer)[6] = (tmp.u >> 48) & 0xFF;
+ ((unsigned char *)buffer)[7] = (tmp.u >> 56) & 0xFF;
+}
+
+
+void BH_Write64LEs(char *buffer,
+ int64_t value)
+{
+ union I64 tmp;
+ tmp.s = value;
+
+ ((unsigned char *)buffer)[0] = (tmp.u) & 0xFF;
+ ((unsigned char *)buffer)[1] = (tmp.u >> 8) & 0xFF;
+ ((unsigned char *)buffer)[2] = (tmp.u >> 16) & 0xFF;
+ ((unsigned char *)buffer)[3] = (tmp.u >> 24) & 0xFF;
+ ((unsigned char *)buffer)[4] = (tmp.u >> 32) & 0xFF;
+ ((unsigned char *)buffer)[5] = (tmp.u >> 40) & 0xFF;
+ ((unsigned char *)buffer)[6] = (tmp.u >> 48) & 0xFF;
+ ((unsigned char *)buffer)[7] = (tmp.u >> 56) & 0xFF;
+}
+
+
+void BH_Write16BEu(char *buffer,
+ uint16_t value)
+{
+ union I16 tmp;
+ tmp.u = value;
+
+ ((unsigned char *)buffer)[0] = (tmp.u >> 8) & 0xFF;
+ ((unsigned char *)buffer)[1] = (tmp.u) & 0xFF;
+}
+
+
+void BH_Write16BEs(char *buffer,
+ int16_t value)
+{
+ union I16 tmp;
+ tmp.s = value;
+
+ ((unsigned char *)buffer)[0] = (tmp.u >> 8) & 0xFF;
+ ((unsigned char *)buffer)[1] = (tmp.u) & 0xFF;
+}
+
+
+void BH_Write32BEu(char *buffer,
+ uint32_t value)
+{
+ union I32 tmp;
+ tmp.u = value;
+
+ ((unsigned char *)buffer)[0] = (tmp.u >> 24) & 0xFF;
+ ((unsigned char *)buffer)[1] = (tmp.u >> 16) & 0xFF;
+ ((unsigned char *)buffer)[2] = (tmp.u >> 8) & 0xFF;
+ ((unsigned char *)buffer)[3] = (tmp.u) & 0xFF;
+}
+
+
+void BH_Write32BEs(char *buffer,
+ int32_t value)
+{
+ union I32 tmp;
+ tmp.s = value;
+
+ ((unsigned char *)buffer)[0] = (tmp.u >> 24) & 0xFF;
+ ((unsigned char *)buffer)[1] = (tmp.u >> 16) & 0xFF;
+ ((unsigned char *)buffer)[2] = (tmp.u >> 8) & 0xFF;
+ ((unsigned char *)buffer)[3] = (tmp.u) & 0xFF;
+}
+
+
+void BH_Write64BEu(char *buffer,
+ uint64_t value)
+{
+ union I64 tmp;
+ tmp.u = value;
+
+ ((unsigned char *)buffer)[0] = (tmp.u >> 56) & 0xFF;
+ ((unsigned char *)buffer)[1] = (tmp.u >> 48) & 0xFF;
+ ((unsigned char *)buffer)[2] = (tmp.u >> 40) & 0xFF;
+ ((unsigned char *)buffer)[3] = (tmp.u >> 32) & 0xFF;
+ ((unsigned char *)buffer)[4] = (tmp.u >> 24) & 0xFF;
+ ((unsigned char *)buffer)[5] = (tmp.u >> 16) & 0xFF;
+ ((unsigned char *)buffer)[6] = (tmp.u >> 8) & 0xFF;
+ ((unsigned char *)buffer)[7] = (tmp.u) & 0xFF;
+}
+
+
+void BH_Write64BEs(char *buffer,
+ int64_t value)
+{
+ union I64 tmp;
+ tmp.s = value;
+
+ ((unsigned char *)buffer)[0] = (tmp.u >> 56) & 0xFF;
+ ((unsigned char *)buffer)[1] = (tmp.u >> 48) & 0xFF;
+ ((unsigned char *)buffer)[2] = (tmp.u >> 40) & 0xFF;
+ ((unsigned char *)buffer)[3] = (tmp.u >> 32) & 0xFF;
+ ((unsigned char *)buffer)[4] = (tmp.u >> 24) & 0xFF;
+ ((unsigned char *)buffer)[5] = (tmp.u >> 16) & 0xFF;
+ ((unsigned char *)buffer)[6] = (tmp.u >> 8) & 0xFF;
+ ((unsigned char *)buffer)[7] = (tmp.u) & 0xFF;
+}
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