diff options
author | Andy Howe <howea@cs.pdx.edu> | 2003-03-26 19:55:00 +0000 |
---|---|---|
committer | Andy Howe <howea@cs.pdx.edu> | 2003-03-26 19:55:00 +0000 |
commit | d30ddbe9e734f301f4fb51cde671574d31537cbd (patch) | |
tree | bea4a6ce7e87f417010e6e17c3ef74ed0631d19f /xcl | |
parent | 6f41edab918c4e658e6a166f0b2ba6c8894f7e49 (diff) |
bugfixes in PutImage()
Diffstat (limited to 'xcl')
-rw-r--r-- | xcl/src/PutImage.c | 921 |
1 files changed, 48 insertions, 873 deletions
diff --git a/xcl/src/PutImage.c b/xcl/src/PutImage.c index 1fd9543..38dc510 100644 --- a/xcl/src/PutImage.c +++ b/xcl/src/PutImage.c @@ -7,764 +7,6 @@ #include <X11/Xutil.h> #include <stdio.h> -#undef USEPUTIMAGE -#undef USEPUTPIXEL - -#if defined(Lynx) && defined(ROUNDUP) -#undef ROUNDUP -#endif - -/* assumes pad is a power of 2 */ -#define ROUNDUP(nbytes, pad) (((nbytes) + ((pad) - 1)) & ~(long)((pad) - 1)) - -#ifdef USEPUTIMAGE -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 (bpt, nb) - register unsigned char *bpt; - register int nb; -{ - do { - *bpt = _reverse_byte[*bpt]; - bpt++; - } while (--nb > 0); - return 0; -} - - -/*ARGSUSED*/ -static void -NoSwap (src, dest, srclen, srcinc, destinc, height, half_order) - register unsigned char *src, *dest; - long srclen, srcinc, 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 (src, dest, srclen, srcinc, destinc, height, half_order) - register unsigned char *src, *dest; - long srclen, srcinc, 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 (src, dest, srclen, srcinc, destinc, height, byte_order) - register unsigned char *src, *dest; - long srclen, srcinc, 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 (src, dest, srclen, srcinc, destinc, height, half_order) - register unsigned char *src, *dest; - long srclen, srcinc, 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 (src, dest, srclen, srcinc, destinc, height, half_order) - register unsigned char *src, *dest; - long srclen, srcinc, 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 (src, dest, srclen, srcinc, destinc, height) - register unsigned char *src, *dest; - long srclen, srcinc, 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 (src, dest, srclen, srcinc, destinc, height, nibble_order) - register unsigned char *src, *dest; - long srclen, srcinc, 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 (src, dest, srclen, srcinc, destinc, height, half_order) - register unsigned char *src, *dest; - long srclen, srcinc, 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 (src, dest, srclen, srcinc, destinc, height, half_order) - register unsigned char *src, *dest; - long srclen, srcinc, destinc; - unsigned int height; -{ - 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 (src, dest, srclen, srcinc, destinc, height, half_order) - register unsigned char *src, *dest; - long srclen, srcinc, 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 (src, dest, srclen, srcinc, destinc, height, half_order) - register unsigned char *src, *dest; - long srclen, srcinc, 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 (* const (SwapFunction[12][12]))() = { -#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))) - -struct SendImageParams -{ - Display *dpy; - int avail_request_size; - int dest_bits_per_pixel; - int dest_scanline_pad; - int req_xoffset; - int req_yoffset; - DRAWABLE drawable; - GCONTEXT gc; - int x; - int y; - unsigned int width; - unsigned int height; - int format; - int leftPad; - XImage *image; - long total_xoffset; - void (*swapfunc)(); - int half_order; -}; - -static void SendImage(dpy, is_xyimage, p, depth) - register Display *const dpy; - const int is_xyimage; - struct SendImageParams *const p; - const int depth; -{ - long bytes_per_src, bytes_per_dest, length; - long bytes_per_line = p->image->bytes_per_line; - long bytes_per_src_plane = bytes_per_line * p->image->height; - long bytes_per_dest_plane; - unsigned char *src, *dest; - unsigned char *buf = 0, *extra = 0; - register int j; - - p->total_xoffset = (unsigned)(p->total_xoffset - p->leftPad) >> 3; - bytes_per_dest = (unsigned long)ROUNDUP((long)p->width * p->dest_bits_per_pixel + p->leftPad, p->dest_scanline_pad) >> 3; - bytes_per_dest_plane = bytes_per_dest * p->height; - length = bytes_per_dest_plane * depth; - - src = (unsigned char *)p->image->data + (p->req_yoffset * bytes_per_line) + p->total_xoffset; - bytes_per_src = (p->width * p->image->bits_per_pixel + p->leftPad + 7) >> 3; - - if (!is_xyimage && (p->image->bits_per_pixel == 4) && ((unsigned int) p->req_xoffset & 0x01)) { - if (! (extra = (unsigned char *) - Xmalloc((unsigned) (p->height * bytes_per_line)))) { - goto done; - } - - ShiftNibblesLeft(src, extra, bytes_per_src, - bytes_per_line, - bytes_per_line, p->height, - p->image->byte_order); - src = extra; - } - - /* when total_xoffset > 0, we have to worry about stepping off the - * end of p->image->data. - */ - if ((p->swapfunc == NoSwap) && - (bytes_per_line == bytes_per_dest) && - (((p->total_xoffset == 0) && - ((depth == 1) || (p->image->height == p->height))) || - ((depth == 1) && - ((p->req_yoffset + p->height) < (unsigned)p->image->height)))) { - XCBPutImage(XCBConnectionOfDisplay(dpy), p->format, p->drawable, - p->gc, p->width, p->height, p->x, p->y, p->leftPad, depth, - length, src); - goto done; - } - - length = ROUNDUP(length, 4); - if ((buf = malloc(length)) == NULL) { - goto done; - } - - p->total_xoffset &= (p->image->bitmap_unit - 1) >> 3; - - if (is_xyimage && (p->total_xoffset > 0) && - (p->image->byte_order != p->image->bitmap_bit_order)) { - char *temp; - long bytes_per_temp_plane, temp_length; - - bytes_per_line = bytes_per_src + p->total_xoffset; - src -= p->total_xoffset; - bytes_per_temp_plane = bytes_per_line * p->height; - temp_length = ROUNDUP(bytes_per_temp_plane * depth, 4); - if ((extra = temp = Xmalloc((unsigned) temp_length)) == NULL) { - goto done; - } - - p->swapfunc = SwapFunction[ComposeIndex(p->image->bitmap_unit, - p->image->bitmap_bit_order, - p->image->byte_order)] - [ComposeIndex(p->image->bitmap_unit, - dpy->byte_order, - dpy->byte_order)]; - for (dest = temp, j = depth; - --j >= 0; - src += bytes_per_src_plane, dest += bytes_per_temp_plane) - (*p->swapfunc)((unsigned char *)src, (unsigned char *)dest, - bytes_per_line, (long)p->image->bytes_per_line, - bytes_per_line, p->height, p->half_order); - p->swapfunc = SwapFunction[ComposeIndex(p->image->bitmap_unit, - dpy->byte_order, - dpy->byte_order)] - [ComposeIndex(dpy->bitmap_unit, - dpy->bitmap_bit_order, - dpy->byte_order)]; - p->half_order = HalfOrder[ComposeIndex(p->image->bitmap_unit, - dpy->byte_order, - dpy->byte_order)]; - src = temp + p->total_xoffset; - bytes_per_src_plane = bytes_per_temp_plane; - } - - for (dest = buf, j = depth; - --j >= 0; - src += bytes_per_src_plane, dest += bytes_per_dest_plane) - (*p->swapfunc)((unsigned char *)src, (unsigned char *)dest, - bytes_per_src, bytes_per_line, - bytes_per_dest, p->height, p->half_order); - - XCBPutImage(XCBConnectionOfDisplay(dpy), p->format, p->drawable, - p->gc, p->width, p->height, p->x, p->y, p->leftPad, depth, - length, buf); - -done: - if (buf) - Xfree(buf); - if (extra) - Xfree(extra); -} - -static void SendXYImage(struct SendImageParams *const p) -{ - /* 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 ((p->leftPad != 0) && (p->format == ZPixmap)) - p->format = XYPixmap; - - SendImage(p->dpy, 1, p, p->image->depth); -} - -static void SendZImage(struct SendImageParams *const p) -{ - SendImage(p->dpy, 0, p, 1); -} - -static void -PutSubImage(p, req_xoffset, req_yoffset, x, y, req_width, req_height) - struct SendImageParams *const p; - int req_xoffset, req_yoffset; - int x, y; - unsigned int req_width, req_height; -{ - int BytesPerRow; - - if ((req_width == 0) || (req_height == 0)) - return; - - if ((p->image->bits_per_pixel == 1) || (p->image->format != ZPixmap)) { - p->total_xoffset = p->image->xoffset + req_xoffset; - p->leftPad = p->total_xoffset & (p->dpy->bitmap_unit - 1); - BytesPerRow = (ROUNDUP((long)req_width + p->leftPad, - p->dpy->bitmap_pad) >> 3) * p->image->depth; - } else { - p->total_xoffset = req_xoffset * p->image->bits_per_pixel; - p->leftPad = 0; - BytesPerRow = ROUNDUP((long)req_width * p->dest_bits_per_pixel, - p->dest_scanline_pad) >> 3; - } - - if ((BytesPerRow * req_height) <= p->avail_request_size) { - p->req_xoffset = req_xoffset; - p->req_yoffset = req_yoffset; - p->x = x; - p->y = y; - p->width = req_width; - p->height = req_height; - p->format = p->image->format; - if ((p->image->bits_per_pixel == 1) || (p->image->format != ZPixmap)) - SendXYImage(p); - else - SendZImage(p); - } else if (req_height > 1) { - int SubImageHeight = p->avail_request_size / BytesPerRow; - - if (SubImageHeight == 0) - SubImageHeight = 1; - - PutSubImage(p, req_xoffset, req_yoffset, x, y, - req_width, (unsigned int) SubImageHeight); - - PutSubImage(p, req_xoffset, - req_yoffset + SubImageHeight, x, y + SubImageHeight, - req_width, req_height - SubImageHeight); - } else { - int SubImageWidth = (((p->avail_request_size << 3) / p->dest_scanline_pad) - * p->dest_scanline_pad) - p->leftPad; - - PutSubImage(p, req_xoffset, req_yoffset, x, y, - (unsigned int) SubImageWidth, 1); - - PutSubImage(p, req_xoffset + SubImageWidth, - req_yoffset, x + SubImageWidth, y, - req_width - SubImageWidth, 1); - } -} - -#ifdef USEPUTPIXEL -extern void _XInitImageFuncPtrs(); -#endif - -#endif /* USEPUTIMAGE */ - int XPutImage(dpy, d, gc, image, req_xoffset, req_yoffset, x, y, req_width, req_height) register Display *dpy; @@ -775,123 +17,56 @@ int XPutImage(dpy, d, gc, image, req_xoffset, req_yoffset, x, y, req_width, unsigned int req_width, req_height; int req_xoffset, req_yoffset; { -#ifdef USEPUTIMAGE - long width = req_width; - long height = req_height; - char *tmp = 0; - struct SendImageParams p; - - 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; - - p.dpy = dpy; - p.drawable = XCLDRAWABLE(d); - p.gc = XCLGCONTEXT(gc->gid); - p.image = image; - p.avail_request_size = ((65536 < dpy->max_request_size) ? - (65536 << 2) : (dpy->max_request_size << 2)) - - SIZEOF(xPutImageReq); - - - if ((image->bits_per_pixel == 1) || (image->format != ZPixmap)) { - p.dest_bits_per_pixel = 1; - p.dest_scanline_pad = dpy->bitmap_pad; - - p.swapfunc = SwapFunction[ComposeIndex(image->bitmap_unit, - image->bitmap_bit_order, - image->byte_order)] - [ComposeIndex(dpy->bitmap_unit, - dpy->bitmap_bit_order, - dpy->byte_order)]; - p.half_order = HalfOrder[ComposeIndex(image->bitmap_unit, - image->bitmap_bit_order, - image->byte_order)]; - if (p.half_order == MSBFirst) - p.half_order = HalfOrderWord[ComposeIndex(dpy->bitmap_unit, - dpy->bitmap_bit_order, - dpy->byte_order)]; - } else { - register int n; - register ScreenFormat *format; - - if (image->byte_order == dpy->byte_order || image->bits_per_pixel == 8) - p.swapfunc = NoSwap; - else - switch (p.image->bits_per_pixel) - { - case 32: - p.swapfunc = SwapFourBytes; - break; - case 24: - p.swapfunc = SwapThreeBytes; - break; - case 16: - p.swapfunc = SwapTwoBytes; - break; - default: - p.swapfunc = SwapNibbles; - } - - p.dest_bits_per_pixel = image->bits_per_pixel; - p.dest_scanline_pad = image->bitmap_pad; - for (n = dpy->nformats, format = dpy->pixmap_format; --n >= 0; format++) - if (format->depth == image->depth) { - p.dest_bits_per_pixel = format->bits_per_pixel; - p.dest_scanline_pad = format->scanline_pad; - } -#ifdef USEPUTPIXEL - if (p.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; - p.swapfunc = NoSwap; /* inv: img.byte_order == dpy->byte_order */ - img.bitmap_unit = dpy->bitmap_unit; - img.bitmap_bit_order = dpy->bitmap_bit_order; - img.bitmap_pad = p.dest_scanline_pad; - img.depth = image->depth; - img.bits_per_pixel = p.dest_bits_per_pixel; - img.bytes_per_line = ROUNDUP((p.dest_bits_per_pixel * width), - p.dest_scanline_pad) >> 3; - tmp = Xmalloc((unsigned) (img.bytes_per_line * height)); - if (tmp == NULL) - return 0; - img.data = tmp; - _XInitImageFuncPtrs(&img); - for (j = height; --j >= 0; ) - for (i = width; --i >= 0; ) - XPutPixel(&img, i, j, XGetPixel(image, req_xoffset + i, - req_yoffset + j)); - p.image = &img; - req_xoffset = req_yoffset = 0; - } -#endif /* USEPUTPIXEL */ + + unsigned int alignment, image_size, bytes_per_line, unaligned_bits; + unsigned int unaligned_bytes, bytes_per_image_line; + unsigned int image_alignment; + char *image_data, *line_ptr, *image_line_ptr; + int index; + DRAWABLE drw; + XCBConnection *c = XCBConnectionOfDisplay(dpy); + drw.pixmap.xid = d; + + /* find out how large the image is going to be */ + alignment = image->bitmap_unit >> 3; + image_alignment = image->bitmap_pad >> 3; + unaligned_bits = image->bits_per_pixel * req_width; + /* give it the extra pad byte if it is needed */ + unaligned_bytes = (unaligned_bits + 7) >> 3; + bytes_per_line = ( (unaligned_bytes + (alignment - 1) ) / alignment ) * alignment; + image_size = bytes_per_line * req_height; + + bytes_per_image_line = ( (unaligned_bytes + (image_alignment - 1) ) / image_alignment ) * image_alignment; + + /* bytes_per_image_line is the number of bytes per scanline in the + * source image */ + +// fprintf(stdout, "depth: %2d, bytes_per_line: %d\n" +// "width: %7d, height: %7d\n" +// "req_width: %7d, req_height: %7d\n\n" +// "bitmap_unit: %6d, bitmap_pad: %6d\n" +// "bits_per_pixel: %5d, unaligned_bytes: %d\n" +// "image_size: %5d\n-------------------------------------------------------------\n", +// image->depth, image->bytes_per_line, image->width, image->height, +// req_width, req_height, image->bitmap_unit, image->bitmap_pad, +// image->bits_per_pixel, unaligned_bytes, image_size); + + line_ptr = image_data = malloc( image_size ); + image_line_ptr = image->data; + for(index = 0; index < req_height; index++) + { + memcpy(line_ptr, image_line_ptr, bytes_per_image_line); + line_ptr += bytes_per_line; + image_line_ptr += (image->bytes_per_line); } - + +// fprintf(stdout, "bitmap_unit: %d\n", image->bitmap_unit); +// fprintf(stdout, "bitmap_pad: %d\n", image->bitmap_pad); LockDisplay(dpy); - FlushGC(dpy, gc); - - PutSubImage(&p, req_xoffset, req_yoffset, x, y, - (unsigned int) width, (unsigned int) height); - + + XCBPutImage(c, image->format, drw, XCLGCONTEXT(gc->gid), req_width, req_height, req_xoffset, req_yoffset, 0, image->depth, image_size, image_data ); + XCBSync(c, 0); UnlockDisplay(dpy); - Xfree(tmp); -#endif /* USEPUTIMAGE */ + free( image_data ); return 0; } |