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#ifndef SkUtils_DEFINED
#define SkUtils_DEFINED
#include "SkTypes.h"
#ifdef FMS_ARCH_ANDROID_ARM
#include "utils/memory.h"
#define SK_MEMSET16_REDIRECT(dst, value, count) android_memset16(dst, value, (count) << 1)
#define SK_MEMSET32_REDIRECT(dst, value, count) android_memset32(dst, value, (count) << 2)
#endif
///////////////////////////////////////////////////////////////////////////
#ifdef SK_MEMSET16_REDIRECT
#define sk_memset16(dst, value, count) SK_MEMSET16_REDIRECT(dst, value, count)
#else
/** Similar to memset(), but this function assigns a 16bit value into the buffer.
@param buffer The memory to have value copied into it
@param value The 16bit value to be copied into buffer
@param count The number of times value should be copied into the buffer.
*/
void sk_memset16(uint16_t dst[], U16CPU value, int count);
#endif
#ifdef SK_MEMSET32_REDIRECT
#define sk_memset32(dst, value, count) SK_MEMSET32_REDIRECT(dst, value, count)
#else
/** Similar to memset(), but this function assigns a 32bit value into the buffer.
@param buffer The memory to have value copied into it
@param value The 32bit value to be copied into buffer
@param count The number of times value should be copied into the buffer.
*/
void sk_memset32(uint32_t dst[], uint32_t value, int count);
#endif
///////////////////////////////////////////////////////////////////////////
#define kMaxBytesInUTF8Sequence 4
#ifdef SK_DEBUG
int SkUTF8_LeadByteToCount(unsigned c);
#else
#define SkUTF8_LeadByteToCount(c) ((((0xE5 << 24) >> ((unsigned)c >> 4 << 1)) & 3) + 1)
#endif
inline int SkUTF8_CountUTF8Bytes(const char utf8[])
{
SkASSERT(utf8);
return SkUTF8_LeadByteToCount(*(const uint8_t*)utf8);
}
int SkUTF8_CountUnichars(const char utf8[]);
int SkUTF8_CountUnichars(const char utf8[], size_t byteLength);
SkUnichar SkUTF8_ToUnichar(const char utf8[]);
SkUnichar SkUTF8_NextUnichar(const char**);
/** Return the number of bytes need to convert a unichar
into a utf8 sequence. Will be 1..kMaxBytesInUTF8Sequence,
or 0 if uni is illegal.
*/
size_t SkUTF8_FromUnichar(SkUnichar uni, char utf8[] = nil);
/////////////////////////////////////////////////////////////////////////////////
#define SkUTF16_IsHighSurrogate(c) (((c) & 0xFC00) == 0xD800)
#define SkUTF16_IsLowSurrogate(c) (((c) & 0xFC00) == 0xDC00)
int SkUTF16_CountUnichars(const uint16_t utf16[]);
int SkUTF16_CountUnichars(const uint16_t utf16[], int numberOf16BitValues);
SkUnichar SkUTF16_NextUnichar(const U16**);
size_t SkUTF16_FromUnichar(SkUnichar uni, uint16_t utf16[] = nil);
size_t SkUTF16_ToUTF8(const uint16_t utf16[], int numberOf16BitValues, char utf8[] = nil);
class SkUtils {
public:
#ifdef SK_DEBUG
static void UnitTest();
#endif
};
#endif
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