diff options
Diffstat (limited to 'src/3rdparty/libtiff/libtiff/tif_swab.c')
| -rw-r--r-- | src/3rdparty/libtiff/libtiff/tif_swab.c | 121 |
1 files changed, 98 insertions, 23 deletions
diff --git a/src/3rdparty/libtiff/libtiff/tif_swab.c b/src/3rdparty/libtiff/libtiff/tif_swab.c index 97cc88825c..f37e33f1c9 100644 --- a/src/3rdparty/libtiff/libtiff/tif_swab.c +++ b/src/3rdparty/libtiff/libtiff/tif_swab.c @@ -1,4 +1,4 @@ -/* $Id: tif_swab.c,v 1.4 2005/04/13 14:06:21 dron Exp $ */ +/* $Id: tif_swab.c,v 1.13 2010-03-10 18:56:49 bfriesen Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler @@ -37,7 +37,7 @@ TIFFSwabShort(uint16* wp) { register unsigned char* cp = (unsigned char*) wp; unsigned char t; - + assert(sizeof(uint16)==2); t = cp[1]; cp[1] = cp[0]; cp[0] = t; } #endif @@ -48,19 +48,33 @@ TIFFSwabLong(uint32* lp) { register unsigned char* cp = (unsigned char*) lp; unsigned char t; - + assert(sizeof(uint32)==4); t = cp[3]; cp[3] = cp[0]; cp[0] = t; t = cp[2]; cp[2] = cp[1]; cp[1] = t; } #endif +#ifndef TIFFSwabLong8 +void +TIFFSwabLong8(uint64* lp) +{ + register unsigned char* cp = (unsigned char*) lp; + unsigned char t; + assert(sizeof(uint64)==8); + t = cp[7]; cp[7] = cp[0]; cp[0] = t; + t = cp[6]; cp[6] = cp[1]; cp[1] = t; + t = cp[5]; cp[5] = cp[2]; cp[2] = t; + t = cp[4]; cp[4] = cp[3]; cp[3] = t; +} +#endif + #ifndef TIFFSwabArrayOfShort void -TIFFSwabArrayOfShort(uint16* wp, register unsigned long n) +TIFFSwabArrayOfShort(register uint16* wp, tmsize_t n) { register unsigned char* cp; register unsigned char t; - + assert(sizeof(uint16)==2); /* XXX unroll loop some */ while (n-- > 0) { cp = (unsigned char*) wp; @@ -72,7 +86,7 @@ TIFFSwabArrayOfShort(uint16* wp, register unsigned long n) #ifndef TIFFSwabArrayOfTriples void -TIFFSwabArrayOfTriples(uint8* tp, unsigned long n) +TIFFSwabArrayOfTriples(register uint8* tp, tmsize_t n) { unsigned char* cp; unsigned char t; @@ -88,11 +102,11 @@ TIFFSwabArrayOfTriples(uint8* tp, unsigned long n) #ifndef TIFFSwabArrayOfLong void -TIFFSwabArrayOfLong(register uint32* lp, register unsigned long n) +TIFFSwabArrayOfLong(register uint32* lp, tmsize_t n) { register unsigned char *cp; register unsigned char t; - + assert(sizeof(uint32)==4); /* XXX unroll loop some */ while (n-- > 0) { cp = (unsigned char *)lp; @@ -103,30 +117,84 @@ TIFFSwabArrayOfLong(register uint32* lp, register unsigned long n) } #endif +#ifndef TIFFSwabArrayOfLong8 +void +TIFFSwabArrayOfLong8(register uint64* lp, tmsize_t n) +{ + register unsigned char *cp; + register unsigned char t; + assert(sizeof(uint64)==8); + /* XXX unroll loop some */ + while (n-- > 0) { + cp = (unsigned char *)lp; + t = cp[7]; cp[7] = cp[0]; cp[0] = t; + t = cp[6]; cp[6] = cp[1]; cp[1] = t; + t = cp[5]; cp[5] = cp[2]; cp[2] = t; + t = cp[4]; cp[4] = cp[3]; cp[3] = t; + lp++; + } +} +#endif + +#ifndef TIFFSwabFloat +void +TIFFSwabFloat(float* fp) +{ + register unsigned char* cp = (unsigned char*) fp; + unsigned char t; + assert(sizeof(float)==4); + t = cp[3]; cp[3] = cp[0]; cp[0] = t; + t = cp[2]; cp[2] = cp[1]; cp[1] = t; +} +#endif + +#ifndef TIFFSwabArrayOfFloat +void +TIFFSwabArrayOfFloat(register float* fp, tmsize_t n) +{ + register unsigned char *cp; + register unsigned char t; + assert(sizeof(float)==4); + /* XXX unroll loop some */ + while (n-- > 0) { + cp = (unsigned char *)fp; + t = cp[3]; cp[3] = cp[0]; cp[0] = t; + t = cp[2]; cp[2] = cp[1]; cp[1] = t; + fp++; + } +} +#endif + #ifndef TIFFSwabDouble void TIFFSwabDouble(double *dp) { - register uint32* lp = (uint32*) dp; - uint32 t; - - TIFFSwabArrayOfLong(lp, 2); - t = lp[0]; lp[0] = lp[1]; lp[1] = t; + register unsigned char* cp = (unsigned char*) dp; + unsigned char t; + assert(sizeof(double)==8); + t = cp[7]; cp[7] = cp[0]; cp[0] = t; + t = cp[6]; cp[6] = cp[1]; cp[1] = t; + t = cp[5]; cp[5] = cp[2]; cp[2] = t; + t = cp[4]; cp[4] = cp[3]; cp[3] = t; } #endif #ifndef TIFFSwabArrayOfDouble void -TIFFSwabArrayOfDouble(double* dp, register unsigned long n) +TIFFSwabArrayOfDouble(double* dp, tmsize_t n) { - register uint32* lp = (uint32*) dp; - register uint32 t; - - TIFFSwabArrayOfLong(lp, n + n); - while (n-- > 0) { - t = lp[0]; lp[0] = lp[1]; lp[1] = t; - lp += 2; - } + register unsigned char *cp; + register unsigned char t; + assert(sizeof(double)==8); + /* XXX unroll loop some */ + while (n-- > 0) { + cp = (unsigned char *)dp; + t = cp[7]; cp[7] = cp[0]; cp[0] = t; + t = cp[6]; cp[6] = cp[1]; cp[1] = t; + t = cp[5]; cp[5] = cp[2]; cp[2] = t; + t = cp[4]; cp[4] = cp[3]; cp[3] = t; + dp++; + } } #endif @@ -215,7 +283,7 @@ TIFFGetBitRevTable(int reversed) } void -TIFFReverseBits(register unsigned char* cp, register unsigned long n) +TIFFReverseBits(uint8* cp, tmsize_t n) { for (; n > 8; n -= 8) { cp[0] = TIFFBitRevTable[cp[0]]; @@ -233,3 +301,10 @@ TIFFReverseBits(register unsigned char* cp, register unsigned long n) } /* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ |