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Diffstat (limited to 'nx-X11/lib/X11/PutImage.c')
| -rw-r--r-- | nx-X11/lib/X11/PutImage.c | 1030 |
1 files changed, 0 insertions, 1030 deletions
diff --git a/nx-X11/lib/X11/PutImage.c b/nx-X11/lib/X11/PutImage.c deleted file mode 100644 index daf172cf0..000000000 --- a/nx-X11/lib/X11/PutImage.c +++ /dev/null @@ -1,1030 +0,0 @@ -/* - -Copyright 1986, 1998 The Open Group - -Permission to use, copy, modify, distribute, and sell this software and its -documentation for any purpose is hereby granted without fee, provided that -the above copyright notice appear in all copies and that both that -copyright notice and this permission notice appear in supporting -documentation. - -The above copyright notice and this permission notice shall be included in -all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN -AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN -CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - -Except as contained in this notice, the name of The Open Group shall not be -used in advertising or otherwise to promote the sale, use or other dealings -in this Software without prior written authorization from The Open Group. - -*/ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif -#include "Xlibint.h" -#include "Xutil.h" -#include <stdio.h> -#include "Cr.h" -#include "ImUtil.h" - -#if defined(__STDC__) && ((defined(sun) && defined(SVR4)) || defined(WIN32)) -#define RConst /**/ -#else -#define RConst const -#endif - -/* assumes pad is a power of 2 */ -#define ROUNDUP(nbytes, pad) (((nbytes) + ((pad) - 1)) & ~(long)((pad) - 1)) - -static unsigned char const _reverse_byte[0x100] = { - 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, - 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0, - 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8, - 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8, - 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4, - 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4, - 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec, - 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc, - 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2, - 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2, - 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea, - 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa, - 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6, - 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6, - 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee, - 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe, - 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1, - 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1, - 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9, - 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9, - 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5, - 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5, - 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed, - 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd, - 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3, - 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3, - 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb, - 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb, - 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7, - 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7, - 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef, - 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff -}; - -static unsigned char const _reverse_nibs[0x100] = { - 0x00, 0x10, 0x20, 0x30, 0x40, 0x50, 0x60, 0x70, - 0x80, 0x90, 0xa0, 0xb0, 0xc0, 0xd0, 0xe0, 0xf0, - 0x01, 0x11, 0x21, 0x31, 0x41, 0x51, 0x61, 0x71, - 0x81, 0x91, 0xa1, 0xb1, 0xc1, 0xd1, 0xe1, 0xf1, - 0x02, 0x12, 0x22, 0x32, 0x42, 0x52, 0x62, 0x72, - 0x82, 0x92, 0xa2, 0xb2, 0xc2, 0xd2, 0xe2, 0xf2, - 0x03, 0x13, 0x23, 0x33, 0x43, 0x53, 0x63, 0x73, - 0x83, 0x93, 0xa3, 0xb3, 0xc3, 0xd3, 0xe3, 0xf3, - 0x04, 0x14, 0x24, 0x34, 0x44, 0x54, 0x64, 0x74, - 0x84, 0x94, 0xa4, 0xb4, 0xc4, 0xd4, 0xe4, 0xf4, - 0x05, 0x15, 0x25, 0x35, 0x45, 0x55, 0x65, 0x75, - 0x85, 0x95, 0xa5, 0xb5, 0xc5, 0xd5, 0xe5, 0xf5, - 0x06, 0x16, 0x26, 0x36, 0x46, 0x56, 0x66, 0x76, - 0x86, 0x96, 0xa6, 0xb6, 0xc6, 0xd6, 0xe6, 0xf6, - 0x07, 0x17, 0x27, 0x37, 0x47, 0x57, 0x67, 0x77, - 0x87, 0x97, 0xa7, 0xb7, 0xc7, 0xd7, 0xe7, 0xf7, - 0x08, 0x18, 0x28, 0x38, 0x48, 0x58, 0x68, 0x78, - 0x88, 0x98, 0xa8, 0xb8, 0xc8, 0xd8, 0xe8, 0xf8, - 0x09, 0x19, 0x29, 0x39, 0x49, 0x59, 0x69, 0x79, - 0x89, 0x99, 0xa9, 0xb9, 0xc9, 0xd9, 0xe9, 0xf9, - 0x0a, 0x1a, 0x2a, 0x3a, 0x4a, 0x5a, 0x6a, 0x7a, - 0x8a, 0x9a, 0xaa, 0xba, 0xca, 0xda, 0xea, 0xfa, - 0x0b, 0x1b, 0x2b, 0x3b, 0x4b, 0x5b, 0x6b, 0x7b, - 0x8b, 0x9b, 0xab, 0xbb, 0xcb, 0xdb, 0xeb, 0xfb, - 0x0c, 0x1c, 0x2c, 0x3c, 0x4c, 0x5c, 0x6c, 0x7c, - 0x8c, 0x9c, 0xac, 0xbc, 0xcc, 0xdc, 0xec, 0xfc, - 0x0d, 0x1d, 0x2d, 0x3d, 0x4d, 0x5d, 0x6d, 0x7d, - 0x8d, 0x9d, 0xad, 0xbd, 0xcd, 0xdd, 0xed, 0xfd, - 0x0e, 0x1e, 0x2e, 0x3e, 0x4e, 0x5e, 0x6e, 0x7e, - 0x8e, 0x9e, 0xae, 0xbe, 0xce, 0xde, 0xee, 0xfe, - 0x0f, 0x1f, 0x2f, 0x3f, 0x4f, 0x5f, 0x6f, 0x7f, - 0x8f, 0x9f, 0xaf, 0xbf, 0xcf, 0xdf, 0xef, 0xff -}; - -int -_XReverse_Bytes( - register unsigned char *bpt, - register int nb) -{ - do { - *bpt = _reverse_byte[*bpt]; - bpt++; - } while (--nb > 0); - return 0; -} - - -/* XXX the following functions are declared int instead of void because various - * compilers and lints complain about later initialization of SwapFunc and/or - * (swapfunc == NoSwap) when void is used. - */ - -/*ARGSUSED*/ -static void -NoSwap ( - register unsigned char *src, - register unsigned char *dest, - long srclen, - long srcinc, - long destinc, - unsigned int height, - int half_order) -{ - long h = height; - - if (srcinc == destinc) - memcpy((char *)dest, (char *)src, (int)(srcinc * (h - 1) + srclen)); - else - for (; --h >= 0; src += srcinc, dest += destinc) - memcpy((char *)dest, (char *)src, (int)srclen); -} - -static void -SwapTwoBytes ( - register unsigned char *src, - register unsigned char *dest, - long srclen, long srcinc, long destinc, - unsigned int height, - int half_order) -{ - long length = ROUNDUP(srclen, 2); - register long h, n; - - srcinc -= length; - destinc -= length; - for (h = height; --h >= 0; src += srcinc, dest += destinc) { - if ((h == 0) && (srclen != length)) { - length -= 2; - if (half_order == MSBFirst) - *(dest + length) = *(src + length + 1); - else - *(dest + length + 1) = *(src + length); - } - for (n = length; n > 0; n -= 2, src += 2) { - *dest++ = *(src + 1); - *dest++ = *src; - } - } -} - -static void -SwapThreeBytes ( - register unsigned char *src, - register unsigned char *dest, - long srclen, long srcinc, long destinc, - unsigned int height, - int byte_order) -{ - long length = ((srclen + 2) / 3) * 3; - register long h, n; - - srcinc -= length; - destinc -= length; - for (h = height; --h >= 0; src += srcinc, dest += destinc) { - if ((h == 0) && (srclen != length)) { - length -= 3; - if ((srclen - length) == 2) - *(dest + length + 1) = *(src + length + 1); - if (byte_order == MSBFirst) - *(dest + length) = *(src + length + 2); - else - *(dest + length + 2) = *(src + length); - } - for (n = length; n > 0; n -= 3, src += 3) { - *dest++ = *(src + 2); - *dest++ = *(src + 1); - *dest++ = *src; - } - } -} - -static void -SwapFourBytes ( - register unsigned char *src, - register unsigned char *dest, - long srclen, long srcinc, long destinc, - unsigned int height, - int half_order) -{ - long length = ROUNDUP(srclen, 4); - register long h, n; - - srcinc -= length; - destinc -= length; - for (h = height; --h >= 0; src += srcinc, dest += destinc) { - if ((h == 0) && (srclen != length)) { - length -= 4; - if (half_order == MSBFirst) - *(dest + length) = *(src + length + 3); - if (((half_order == LSBFirst) && ((srclen - length) == 3)) || - ((half_order == MSBFirst) && (srclen & 2))) - *(dest + length + 1) = *(src + length + 2); - if (((half_order == MSBFirst) && ((srclen - length) == 3)) || - ((half_order == LSBFirst) && (srclen & 2))) - *(dest + length + 2) = *(src + length + 1); - if (half_order == LSBFirst) - *(dest + length + 3) = *(src + length); - } - for (n = length; n > 0; n -= 4, src += 4) { - *dest++ = *(src + 3); - *dest++ = *(src + 2); - *dest++ = *(src + 1); - *dest++ = *src; - } - } -} - -static void -SwapWords ( - register unsigned char *src, - register unsigned char *dest, - long srclen, long srcinc, long destinc, - unsigned int height, - int half_order) -{ - long length = ROUNDUP(srclen, 4); - register long h, n; - - srcinc -= length; - destinc -= length; - for (h = height; --h >= 0; src += srcinc, dest += destinc) { - if ((h == 0) && (srclen != length)) { - length -= 4; - if (half_order == MSBFirst) - *(dest + length + 1) = *(src + length + 3); - if (((half_order == LSBFirst) && ((srclen - length) == 3)) || - ((half_order == MSBFirst) && (srclen & 2))) - *(dest + length) = *(src + length + 2); - if (((half_order == MSBFirst) && ((srclen - length) == 3)) || - ((half_order == LSBFirst) && (srclen & 2))) - *(dest + length + 3) = *(src + length + 1); - if (half_order == LSBFirst) - *(dest + length + 2) = *(src + length); - } - for (n = length; n > 0; n -= 4, src += 2) { - *dest++ = *(src + 2); - *dest++ = *(src + 3); - *dest++ = *src++; - *dest++ = *src++; - } - } -} - -static void -SwapNibbles( - register unsigned char *src, - register unsigned char *dest, - long srclen, long srcinc, long destinc, - unsigned int height) -{ - register long h, n; - register const unsigned char *rev = _reverse_nibs; - - srcinc -= srclen; - destinc -= srclen; - for (h = height; --h >= 0; src += srcinc, dest += destinc) - for (n = srclen; --n >= 0; ) - *dest++ = rev[*src++]; -} - -static void -ShiftNibblesLeft ( - register unsigned char *src, - register unsigned char *dest, - long srclen, long srcinc, long destinc, - unsigned int height, - int nibble_order) -{ - register long h, n; - register unsigned char c1, c2; - - srcinc -= srclen; - destinc -= srclen; - if (nibble_order == MSBFirst) { - for (h = height; --h >= 0; src += srcinc, dest += destinc) - for (n = srclen; --n >= 0; ) { - c1 = *src++; - c2 = *src; - *dest++ = ((c1 & 0x0f) << 4) | ((c2 & (unsigned)0xf0) >> 4); - } - } else { - for (h = height; --h >= 0; src += srcinc, dest += destinc) - for (n = srclen; --n >= 0; ) { - c1 = *src++; - c2 = *src; - *dest++ = ((c2 & 0x0f) << 4) | ((c1 & (unsigned)0xf0) >> 4); - } - } -} - -/*ARGSUSED*/ -static void -SwapBits( - register unsigned char *src, - register unsigned char *dest, - long srclen, long srcinc, long destinc, - unsigned int height, - int half_order) -{ - register long h, n; - register const unsigned char *rev = _reverse_byte; - - srcinc -= srclen; - destinc -= srclen; - for (h = height; --h >= 0; src += srcinc, dest += destinc) - for (n = srclen; --n >= 0; ) - *dest++ = rev[*src++]; -} - -static void -SwapBitsAndTwoBytes( - register unsigned char *src, - register unsigned char *dest, - long srclen, long srcinc, long destinc, - unsigned int height, - int half_order) -{ - long length = ROUNDUP(srclen, 2); - register long h, n; - register const unsigned char *rev = _reverse_byte; - - srcinc -= length; - destinc -= length; - for (h = height; --h >= 0; src += srcinc, dest += destinc) { - if ((h == 0) && (srclen != length)) { - length -= 2; - if (half_order == MSBFirst) - *(dest + length) = rev[*(src + length + 1)]; - else - *(dest + length + 1) = rev[*(src + length)]; - } - for (n = length; n > 0; n -= 2, src += 2) { - *dest++ = rev[*(src + 1)]; - *dest++ = rev[*src]; - } - } -} - -static void -SwapBitsAndFourBytes( - register unsigned char *src, - register unsigned char *dest, - long srclen, long srcinc, long destinc, - unsigned int height, - int half_order) -{ - long length = ROUNDUP(srclen, 4); - register long h, n; - register const unsigned char *rev = _reverse_byte; - - srcinc -= length; - destinc -= length; - for (h = height; --h >= 0; src += srcinc, dest += destinc) { - if ((h == 0) && (srclen != length)) { - length -= 4; - if (half_order == MSBFirst) - *(dest + length) = rev[*(src + length + 3)]; - if (((half_order == LSBFirst) && ((srclen - length) == 3)) || - ((half_order == MSBFirst) && (srclen & 2))) - *(dest + length + 1) = rev[*(src + length + 2)]; - if (((half_order == MSBFirst) && ((srclen - length) == 3)) || - ((half_order == LSBFirst) && (srclen & 2))) - *(dest + length + 2) = rev[*(src + length + 1)]; - if (half_order == LSBFirst) - *(dest + length + 3) = rev[*(src + length)]; - } - for (n = length; n > 0; n -= 4, src += 4) { - *dest++ = rev[*(src + 3)]; - *dest++ = rev[*(src + 2)]; - *dest++ = rev[*(src + 1)]; - *dest++ = rev[*src]; - } - } -} - -static void -SwapBitsAndWords( - register unsigned char *src, - register unsigned char *dest, - long srclen, long srcinc, long destinc, - unsigned int height, - int half_order) -{ - long length = ROUNDUP(srclen, 4); - register long h, n; - register const unsigned char *rev = _reverse_byte; - - srcinc -= length; - destinc -= length; - for (h = height; --h >= 0; src += srcinc, dest += destinc) { - if ((h == 0) && (srclen != length)) { - length -= 4; - if (half_order == MSBFirst) - *(dest + length + 1) = rev[*(src + length + 3)]; - if (((half_order == LSBFirst) && ((srclen - length) == 3)) || - ((half_order == MSBFirst) && (srclen & 2))) - *(dest + length) = rev[*(src + length + 2)]; - if (((half_order == MSBFirst) && ((srclen - length) == 3)) || - ((half_order == LSBFirst) && (srclen & 2))) - *(dest + length + 3) = rev[*(src + length + 1)]; - if (half_order == LSBFirst) - *(dest + length + 2) = rev[*(src + length)]; - } - for (n = length; n > 0; n -= 4, src += 2) { - *dest++ = rev[*(src + 2)]; - *dest++ = rev[*(src + 3)]; - *dest++ = rev[*src++]; - *dest++ = rev[*src++]; - } - } -} - -/* - -The following table gives the bit ordering within bytes (when accessed -sequentially) for a scanline containing 32 bits, with bits numbered 0 to -31, where bit 0 should be leftmost on the display. For a given byte -labelled A-B, A is for the most significant bit of the byte, and B is -for the least significant bit. - -legend: - 1 scanline-unit = 8 - 2 scanline-unit = 16 - 4 scanline-unit = 32 - M byte-order = MostSignificant - L byte-order = LeastSignificant - m bit-order = MostSignificant - l bit-order = LeastSignificant - - -format ordering - -1Mm 00-07 08-15 16-23 24-31 -2Mm 00-07 08-15 16-23 24-31 -4Mm 00-07 08-15 16-23 24-31 -1Ml 07-00 15-08 23-16 31-24 -2Ml 15-08 07-00 31-24 23-16 -4Ml 31-24 23-16 15-08 07-00 -1Lm 00-07 08-15 16-23 24-31 -2Lm 08-15 00-07 24-31 16-23 -4Lm 24-31 16-23 08-15 00-07 -1Ll 07-00 15-08 23-16 31-24 -2Ll 07-00 15-08 23-16 31-24 -4Ll 07-00 15-08 23-16 31-24 - - -The following table gives the required conversion between any two -formats. It is based strictly on the table above. If you believe one, -you should believe the other. - -legend: - n no changes - s reverse 8-bit units within 16-bit units - l reverse 8-bit units within 32-bit units - w reverse 16-bit units within 32-bit units - R reverse bits within 8-bit units - S s+R - L l+R - W w+R - -*/ - -static void (* RConst (SwapFunction[12][12]))( - register unsigned char *src, - register unsigned char *dest, - long srclen, - long srcinc, - long destinc, - unsigned int height, - int half_order) = { -#define n NoSwap, -#define s SwapTwoBytes, -#define l SwapFourBytes, -#define w SwapWords, -#define R SwapBits, -#define S SwapBitsAndTwoBytes, -#define L SwapBitsAndFourBytes, -#define W SwapBitsAndWords, - -/* 1Mm 2Mm 4Mm 1Ml 2Ml 4Ml 1Lm 2Lm 4Lm 1Ll 2Ll 4Ll */ -/* 1Mm */ { n n n R S L n s l R R R }, -/* 2Mm */ { n n n R S L n s l R R R }, -/* 4Mm */ { n n n R S L n s l R R R }, -/* 1Ml */ { R R R n s l R S L n n n }, -/* 2Ml */ { S S S s n w S R W s s s }, -/* 4Ml */ { L L L l w n L W R l l l }, -/* 1Lm */ { n n n R S L n s l R R R }, -/* 2Lm */ { s s s S R W s n w S S S }, -/* 4Lm */ { l l l L W R l w n L L L }, -/* 1Ll */ { R R R n s l R S L n n n }, -/* 2Ll */ { R R R n s l R S L n n n }, -/* 4Ll */ { R R R n s l R S L n n n } - -#undef n -#undef s -#undef l -#undef w -#undef R -#undef S -#undef L -#undef W - -}; - -/* Of course, the table above is a lie. We also need to factor in the - * order of the source data to cope with swapping half of a unit at the - * end of a scanline, since we are trying to avoid de-ref'ing off the - * end of the source. - * - * Defines whether the first half of a unit has the first half of the data - */ -static int const HalfOrder[12] = { - LSBFirst, /* 1Mm */ - LSBFirst, /* 2Mm */ - LSBFirst, /* 4Mm */ - LSBFirst, /* 1Ml */ - MSBFirst, /* 2Ml */ - MSBFirst, /* 4Ml */ - LSBFirst, /* 1Lm */ - MSBFirst, /* 2Lm */ - MSBFirst, /* 4Lm */ - LSBFirst, /* 1Ll */ - LSBFirst, /* 2Ll */ - LSBFirst /* 4Ll */ - }; - -/* Finally, for SwapWords cases, the half order depends not just on the source - * but also on the destination scanline unit. Use of this table changes some - * MSBFirsts to LSBFirsts that are "do not care" (because the function will be - * NoSwap or SwapBits) in addition to changing the desired ones. - */ - -static int const HalfOrderWord[12] = { - MSBFirst, /* 1Mm */ - MSBFirst, /* 2Mm */ - MSBFirst, /* 4Mm */ - MSBFirst, /* 1Ml */ - MSBFirst, /* 2Ml */ - LSBFirst, /* 4Ml */ - MSBFirst, /* 1Lm */ - MSBFirst, /* 2Lm */ - LSBFirst, /* 4Lm */ - MSBFirst, /* 1Ll */ - MSBFirst, /* 2Ll */ - MSBFirst /* 4Ll */ - }; - -/* - * This macro creates a value from 0 to 11 suitable for indexing - * into the table above. - */ -#define ComposeIndex(bitmap_unit, bitmap_bit_order, byte_order) \ - (((bitmap_unit == 32) ? 2 : ((bitmap_unit == 16) ? 1 : 0)) \ - + (((bitmap_bit_order == MSBFirst) ? 0 : 3) \ - + ((byte_order == MSBFirst) ? 0 : 6))) - -/* Cancel a GetReq operation, before doing _XSend or Data */ - -#define UnGetReq(name)\ - dpy->bufptr -= SIZEOF(x##name##Req);\ - dpy->request-- - -static void -SendXYImage( - register Display *dpy, - register xPutImageReq *req, - register XImage *image, - int req_xoffset, int req_yoffset) -{ - register int j; - long total_xoffset, bytes_per_src, bytes_per_dest, length; - long bytes_per_line, bytes_per_src_plane, bytes_per_dest_plane; - char *src, *dest, *buf; - char *extra = (char *)NULL; - register void (*swapfunc)( - register unsigned char *src, - register unsigned char *dest, - long srclen, - long srcinc, - long destinc, - unsigned int height, - int half_order); - int half_order; - - total_xoffset = image->xoffset + req_xoffset; - req->leftPad = total_xoffset & (dpy->bitmap_unit - 1); - total_xoffset = (unsigned)(total_xoffset - req->leftPad) >> 3; - /* The protocol requires left-pad of zero on all ZPixmap, even - * though the 1-bit case is identical to bitmap format. This is a - * bug in the protocol, caused because 1-bit ZPixmap was added late - * in the game. Hairy shifting code compensation isn't worth it, - * just use XYPixmap format instead. - */ - if ((req->leftPad != 0) && (req->format == ZPixmap)) - req->format = XYPixmap; - bytes_per_dest = (unsigned long)ROUNDUP((long)req->width + req->leftPad, - dpy->bitmap_pad) >> 3; - bytes_per_dest_plane = bytes_per_dest * req->height; - length = bytes_per_dest_plane * image->depth; - req->length += (length + 3) >> 2; - - swapfunc = SwapFunction[ComposeIndex(image->bitmap_unit, - image->bitmap_bit_order, - image->byte_order)] - [ComposeIndex(dpy->bitmap_unit, - dpy->bitmap_bit_order, - dpy->byte_order)]; - half_order = HalfOrder[ComposeIndex(image->bitmap_unit, - image->bitmap_bit_order, - image->byte_order)]; - if (half_order == MSBFirst) - half_order = HalfOrderWord[ComposeIndex(dpy->bitmap_unit, - dpy->bitmap_bit_order, - dpy->byte_order)]; - - src = image->data + (image->bytes_per_line * req_yoffset) + total_xoffset; - - /* when total_xoffset > 0, we have to worry about stepping off the - * end of image->data. - */ - if ((swapfunc == NoSwap) && - (image->bytes_per_line == bytes_per_dest) && - (((total_xoffset == 0) && - ((image->depth == 1) || (image->height == req->height))) || - ((image->depth == 1) && - ((req_yoffset + req->height) < (unsigned)image->height)))) { - Data(dpy, src, length); - return; - } - - length = ROUNDUP(length, 4); - if ((dpy->bufptr + length) > dpy->bufmax) { - if ((buf = _XAllocScratch(dpy, length)) == NULL) { - UnGetReq(PutImage); - return; - } - } - else - buf = dpy->bufptr; - - bytes_per_src = (req->width + req->leftPad + (unsigned)7) >> 3; - bytes_per_line = image->bytes_per_line; - bytes_per_src_plane = bytes_per_line * image->height; - total_xoffset &= (image->bitmap_unit - 1) >> 3; - - if ((total_xoffset > 0) && - (image->byte_order != image->bitmap_bit_order)) { - char *temp; - long bytes_per_temp_plane, temp_length; - - bytes_per_line = bytes_per_src + total_xoffset; - src -= total_xoffset; - bytes_per_temp_plane = bytes_per_line * req->height; - temp_length = ROUNDUP(bytes_per_temp_plane * image->depth, 4); - if (buf == dpy->bufptr) { - if (! (temp = _XAllocScratch(dpy, temp_length))) { - UnGetReq(PutImage); - return; - } - } - else - if ((extra = temp = Xmalloc(temp_length)) == NULL) { - UnGetReq(PutImage); - return; - } - - swapfunc = SwapFunction[ComposeIndex(image->bitmap_unit, - image->bitmap_bit_order, - image->byte_order)] - [ComposeIndex(image->bitmap_unit, - dpy->byte_order, - dpy->byte_order)]; - for (dest = temp, j = image->depth; - --j >= 0; - src += bytes_per_src_plane, dest += bytes_per_temp_plane) - (*swapfunc)((unsigned char *)src, (unsigned char *)dest, - bytes_per_line, (long)image->bytes_per_line, - bytes_per_line, req->height, half_order); - swapfunc = SwapFunction[ComposeIndex(image->bitmap_unit, - dpy->byte_order, - dpy->byte_order)] - [ComposeIndex(dpy->bitmap_unit, - dpy->bitmap_bit_order, - dpy->byte_order)]; - half_order = HalfOrder[ComposeIndex(image->bitmap_unit, - dpy->byte_order, - dpy->byte_order)]; - src = temp + total_xoffset; - bytes_per_src_plane = bytes_per_temp_plane; - } - - for (dest = buf, j = image->depth; - --j >= 0; - src += bytes_per_src_plane, dest += bytes_per_dest_plane) - (*swapfunc)((unsigned char *)src, (unsigned char *)dest, - bytes_per_src, bytes_per_line, - bytes_per_dest, req->height, half_order); - - Xfree(extra); - - if (buf == dpy->bufptr) - dpy->bufptr += length; - else - _XSend(dpy, buf, length); - } - -static void -SendZImage( - register Display *dpy, - register xPutImageReq *req, - register XImage *image, - int req_xoffset, int req_yoffset, - int dest_bits_per_pixel, int dest_scanline_pad) -{ - long bytes_per_src, bytes_per_dest, length; - unsigned char *src, *dest; - unsigned char *shifted_src = NULL; - - req->leftPad = 0; - bytes_per_src = ROUNDUP((long)req->width * image->bits_per_pixel, 8) >> 3; - bytes_per_dest = ROUNDUP((long)req->width * dest_bits_per_pixel, - dest_scanline_pad) >> 3; - length = bytes_per_dest * req->height; - req->length += (length + 3) >> 2; - - src = (unsigned char *)image->data + - (req_yoffset * image->bytes_per_line) + - ((req_xoffset * image->bits_per_pixel) >> 3); - if ((image->bits_per_pixel == 4) && ((unsigned int) req_xoffset & 0x01)) { - if (! (shifted_src = Xmalloc(req->height * image->bytes_per_line))) { - UnGetReq(PutImage); - return; - } - - ShiftNibblesLeft(src, shifted_src, bytes_per_src, - (long) image->bytes_per_line, - (long) image->bytes_per_line, req->height, - image->byte_order); - src = shifted_src; - } - - /* when req_xoffset > 0, we have to worry about stepping off the - * end of image->data. - */ - if (((image->byte_order == dpy->byte_order) || - (image->bits_per_pixel == 8)) && - ((long)image->bytes_per_line == bytes_per_dest) && - ((req_xoffset == 0) || - ((req_yoffset + req->height) < (unsigned)image->height))) { - Data(dpy, (char *)src, length); - Xfree(shifted_src); - return; - } - - length = ROUNDUP(length, 4); - if ((dpy->bufptr + length) <= dpy->bufmax) - dest = (unsigned char *)dpy->bufptr; - else - if ((dest = (unsigned char *) - _XAllocScratch(dpy, length)) == NULL) { - Xfree(shifted_src); - UnGetReq(PutImage); - return; - } - - if ((image->byte_order == dpy->byte_order) || - (image->bits_per_pixel == 8)) - NoSwap(src, dest, bytes_per_src, (long)image->bytes_per_line, - bytes_per_dest, req->height, image->byte_order); - else if (image->bits_per_pixel == 32) - SwapFourBytes(src, dest, bytes_per_src, (long)image->bytes_per_line, - bytes_per_dest, req->height, image->byte_order); - else if (image->bits_per_pixel == 24) - SwapThreeBytes(src, dest, bytes_per_src, (long)image->bytes_per_line, - bytes_per_dest, req->height, image->byte_order); - else if (image->bits_per_pixel == 16) - SwapTwoBytes(src, dest, bytes_per_src, (long)image->bytes_per_line, - bytes_per_dest, req->height, image->byte_order); - else - SwapNibbles(src, dest, bytes_per_src, (long)image->bytes_per_line, - bytes_per_dest, req->height); - - if (dest == (unsigned char *)dpy->bufptr) - dpy->bufptr += length; - else - _XSend(dpy, (char *)dest, length); - - Xfree(shifted_src); -} - -static void -PutImageRequest( - register Display *dpy, - Drawable d, - GC gc, - register XImage *image, - int req_xoffset, int req_yoffset, - int x, int y, - unsigned int req_width, unsigned int req_height, - int dest_bits_per_pixel, int dest_scanline_pad) -{ - register xPutImageReq *req; - - GetReq(PutImage, req); - req->drawable = d; - req->gc = gc->gid; - req->dstX = x; - req->dstY = y; - req->width = req_width; - req->height = req_height; - req->depth = image->depth; - req->format = image->format; - if ((image->bits_per_pixel == 1) || (image->format != ZPixmap)) - SendXYImage(dpy, req, image, req_xoffset, req_yoffset); - else - SendZImage(dpy, req, image, req_xoffset, req_yoffset, - dest_bits_per_pixel, dest_scanline_pad); -} - -static void -PutSubImage ( - register Display *dpy, - Drawable d, - GC gc, - register XImage *image, - int req_xoffset, - int req_yoffset, - int x, int y, - unsigned int req_width, - unsigned int req_height, - int dest_bits_per_pixel, - int dest_scanline_pad) -{ - int left_pad, BytesPerRow, Available; - - if ((req_width == 0) || (req_height == 0)) - return; - - Available = ((65536 < dpy->max_request_size) ? (65536 << 2) - : (dpy->max_request_size << 2)) - - SIZEOF(xPutImageReq); - - if ((image->bits_per_pixel == 1) || (image->format != ZPixmap)) { - left_pad = (image->xoffset + req_xoffset) & (dpy->bitmap_unit - 1); - BytesPerRow = (ROUNDUP((long)req_width + left_pad, - dpy->bitmap_pad) >> 3) * image->depth; - } else { - left_pad = 0; - BytesPerRow = ROUNDUP((long)req_width * dest_bits_per_pixel, - dest_scanline_pad) >> 3; - } - - if ((BytesPerRow * req_height) <= Available) { - PutImageRequest(dpy, d, gc, image, req_xoffset, req_yoffset, x, y, - req_width, req_height, - dest_bits_per_pixel, dest_scanline_pad); - } else if (req_height > 1) { - int SubImageHeight = Available / BytesPerRow; - - if (SubImageHeight == 0) - SubImageHeight = 1; - - PutSubImage(dpy, d, gc, image, req_xoffset, req_yoffset, x, y, - req_width, (unsigned int) SubImageHeight, - dest_bits_per_pixel, dest_scanline_pad); - - PutSubImage(dpy, d, gc, image, req_xoffset, - req_yoffset + SubImageHeight, x, y + SubImageHeight, - req_width, req_height - SubImageHeight, - dest_bits_per_pixel, dest_scanline_pad); - } else { - int SubImageWidth = (((Available << 3) / dest_scanline_pad) - * dest_scanline_pad) - left_pad; - - PutSubImage(dpy, d, gc, image, req_xoffset, req_yoffset, x, y, - (unsigned int) SubImageWidth, 1, - dest_bits_per_pixel, dest_scanline_pad); - - PutSubImage(dpy, d, gc, image, req_xoffset + SubImageWidth, - req_yoffset, x + SubImageWidth, y, - req_width - SubImageWidth, 1, - dest_bits_per_pixel, dest_scanline_pad); - } -} - - -int -XPutImage ( - register Display *dpy, - Drawable d, - GC gc, - register XImage *image, - int req_xoffset, - int req_yoffset, - int x, - int y, - unsigned int req_width, - unsigned int req_height) - -{ - long width = req_width; - long height = req_height; - int dest_bits_per_pixel, dest_scanline_pad; - - if (req_xoffset < 0) { - width += req_xoffset; - req_xoffset = 0; - } - if (req_yoffset < 0) { - height += req_yoffset; - req_yoffset = 0; - } - if ((req_xoffset + width) > image->width) - width = image->width - req_xoffset; - if ((req_yoffset + height) > image->height) - height = image->height - req_yoffset; - if ((width <= 0) || (height <= 0)) - return 0; - - if ((image->bits_per_pixel == 1) || (image->format != ZPixmap)) { - dest_bits_per_pixel = 1; - dest_scanline_pad = dpy->bitmap_pad; - } else { - register int n; - register ScreenFormat *format; - - dest_bits_per_pixel = image->bits_per_pixel; - dest_scanline_pad = image->bitmap_pad; - for (n = dpy->nformats, format = dpy->pixmap_format; --n >= 0; format++) - if (format->depth == image->depth) { - dest_bits_per_pixel = format->bits_per_pixel; - dest_scanline_pad = format->scanline_pad; - } - if (dest_bits_per_pixel != image->bits_per_pixel) { - XImage img; - register long i, j; - /* XXX slow, but works */ - img.width = width; - img.height = height; - img.xoffset = 0; - img.format = ZPixmap; - img.byte_order = dpy->byte_order; - img.bitmap_unit = dpy->bitmap_unit; - img.bitmap_bit_order = dpy->bitmap_bit_order; - img.bitmap_pad = dest_scanline_pad; - img.depth = image->depth; - img.bits_per_pixel = dest_bits_per_pixel; - img.bytes_per_line = ROUNDUP((dest_bits_per_pixel * width), - dest_scanline_pad) >> 3; - img.data = Xmalloc(img.bytes_per_line * height); - if (img.data == NULL) - return 0; - _XInitImageFuncPtrs(&img); - for (j = height; --j >= 0; ) - for (i = width; --i >= 0; ) - XPutPixel(&img, i, j, XGetPixel(image, req_xoffset + i, - req_yoffset + j)); - LockDisplay(dpy); - FlushGC(dpy, gc); - PutSubImage(dpy, d, gc, &img, 0, 0, x, y, - (unsigned int) width, (unsigned int) height, - dest_bits_per_pixel, dest_scanline_pad); - UnlockDisplay(dpy); - SyncHandle(); - Xfree(img.data); - return 0; - } - } - - LockDisplay(dpy); - FlushGC(dpy, gc); - - PutSubImage(dpy, d, gc, image, req_xoffset, req_yoffset, x, y, - (unsigned int) width, (unsigned int) height, - dest_bits_per_pixel, dest_scanline_pad); - - UnlockDisplay(dpy); - SyncHandle(); -#ifdef USE_DYNAMIC_XCURSOR - if (image->bits_per_pixel == 1 && - x == 0 && y == 0 && - width == image->width && height == image->height && - gc->values.function == GXcopy && - (gc->values.plane_mask & 1)) - { - _XNoticePutBitmap (dpy, d, image); - } -#endif - return 0; -} |