From 4f8e2d60ed0edcf489f4db4eb90460f33c0b70d4 Mon Sep 17 00:00:00 2001 From: jsorg71 Date: Mon, 26 Jun 2006 00:33:04 +0000 Subject: linux EOL --- uirdesktop/bitmap.c | 2506 +++++++++++++++++++++++++-------------------------- 1 file changed, 1253 insertions(+), 1253 deletions(-) (limited to 'uirdesktop/bitmap.c') diff --git a/uirdesktop/bitmap.c b/uirdesktop/bitmap.c index e9e4ed3a..1dc384e7 100644 --- a/uirdesktop/bitmap.c +++ b/uirdesktop/bitmap.c @@ -1,1253 +1,1253 @@ -/* -*- c-basic-offset: 8 -*- - rdesktop: A Remote Desktop Protocol client. - Bitmap decompression routines - Copyright (C) Matthew Chapman 1999-2005 - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -/* three seperate function for speed when decompressing the bitmaps */ -/* when modifing one function make the change in the others */ -/* comment out #define BITMAP_SPEED_OVER_SIZE below for one slower function */ -/* j@american-data.com */ - -/* indent is confused by this file */ -/* *INDENT-OFF* */ - -#include "rdesktop.h" -#include "uimain.h" - -#define CVAL(p) (*(p++)) -#ifdef NEED_ALIGN -#ifdef L_ENDIAN -#define CVAL2(p, v) { v = (*(p++)); v |= (*(p++)) << 8; } -#else -#define CVAL2(p, v) { v = (*(p++)) << 8; v |= (*(p++)); } -#endif /* L_ENDIAN */ -#else -#define CVAL2(p, v) { v = (*((uint16*)p)); p += 2; } -#endif /* NEED_ALIGN */ - -#define UNROLL8(exp) { exp exp exp exp exp exp exp exp } - -#define REPEAT(statement) \ -{ \ - while((count & ~0x7) && ((x+8) < width)) \ - UNROLL8( statement; count--; x++; ); \ - \ - while((count > 0) && (x < width)) \ - { \ - statement; \ - count--; \ - x++; \ - } \ -} - -#define MASK_UPDATE() \ -{ \ - mixmask <<= 1; \ - if (mixmask == 0) \ - { \ - mask = fom_mask ? fom_mask : CVAL(input); \ - mixmask = 1; \ - } \ -} - -/* 1 byte bitmap decompress */ -static BOOL -bitmap_decompress1(uint8 * output, int width, int height, uint8 * input, int size) -{ - uint8 *end = input + size; - uint8 *prevline = NULL, *line = NULL; - int opcode, count, offset, isfillormix, x = width; - int lastopcode = -1, insertmix = False, bicolour = False; - uint8 code; - uint8 colour1 = 0, colour2 = 0; - uint8 mixmask, mask = 0; - uint8 mix = 0xff; - int fom_mask; - - while (input < end) - { - fom_mask = 0; - code = CVAL(input); - opcode = code >> 4; - /* Handle different opcode forms */ - switch (opcode) - { - case 0xc: - case 0xd: - case 0xe: - opcode -= 6; - count = code & 0xf; - offset = 16; - break; - case 0xf: - opcode = code & 0xf; - if (opcode < 9) - { - count = CVAL(input); - count |= CVAL(input) << 8; - } - else - { - count = (opcode < 0xb) ? 8 : 1; - } - offset = 0; - break; - default: - opcode >>= 1; - count = code & 0x1f; - offset = 32; - break; - } - /* Handle strange cases for counts */ - if (offset != 0) - { - isfillormix = ((opcode == 2) || (opcode == 7)); - if (count == 0) - { - if (isfillormix) - count = CVAL(input) + 1; - else - count = CVAL(input) + offset; - } - else if (isfillormix) - { - count <<= 3; - } - } - /* Read preliminary data */ - switch (opcode) - { - case 0: /* Fill */ - if ((lastopcode == opcode) && !((x == width) && (prevline == NULL))) - insertmix = True; - break; - case 8: /* Bicolour */ - colour1 = CVAL(input); - case 3: /* Colour */ - colour2 = CVAL(input); - break; - case 6: /* SetMix/Mix */ - case 7: /* SetMix/FillOrMix */ - mix = CVAL(input); - opcode -= 5; - break; - case 9: /* FillOrMix_1 */ - mask = 0x03; - opcode = 0x02; - fom_mask = 3; - break; - case 0x0a: /* FillOrMix_2 */ - mask = 0x05; - opcode = 0x02; - fom_mask = 5; - break; - } - lastopcode = opcode; - mixmask = 0; - /* Output body */ - while (count > 0) - { - if (x >= width) - { - if (height <= 0) - return False; - x = 0; - height--; - prevline = line; - line = output + height * width; - } - switch (opcode) - { - case 0: /* Fill */ - if (insertmix) - { - if (prevline == NULL) - line[x] = mix; - else - line[x] = prevline[x] ^ mix; - insertmix = False; - count--; - x++; - } - if (prevline == NULL) - { - REPEAT(line[x] = 0) - } - else - { - REPEAT(line[x] = prevline[x]) - } - break; - case 1: /* Mix */ - if (prevline == NULL) - { - REPEAT(line[x] = mix) - } - else - { - REPEAT(line[x] = prevline[x] ^ mix) - } - break; - case 2: /* Fill or Mix */ - if (prevline == NULL) - { - REPEAT - ( - MASK_UPDATE(); - if (mask & mixmask) - line[x] = mix; - else - line[x] = 0; - ) - } - else - { - REPEAT - ( - MASK_UPDATE(); - if (mask & mixmask) - line[x] = prevline[x] ^ mix; - else - line[x] = prevline[x]; - ) - } - break; - case 3: /* Colour */ - REPEAT(line[x] = colour2) - break; - case 4: /* Copy */ - REPEAT(line[x] = CVAL(input)) - break; - case 8: /* Bicolour */ - REPEAT - ( - if (bicolour) - { - line[x] = colour2; - bicolour = False; - } - else - { - line[x] = colour1; - bicolour = True; count++; - } - ) - break; - case 0xd: /* White */ - REPEAT(line[x] = 0xff) - break; - case 0xe: /* Black */ - REPEAT(line[x] = 0) - break; - default: - unimpl("bitmap opcode 0x%x\n", opcode); - return False; - } - } - } - return True; -} - -/* 2 byte bitmap decompress */ -static BOOL -bitmap_decompress2(uint8 * output, int width, int height, uint8 * input, int size) -{ - uint8 *end = input + size; - uint16 *prevline = NULL, *line = NULL; - int opcode, count, offset, isfillormix, x = width; - int lastopcode = -1, insertmix = False, bicolour = False; - uint8 code; - uint16 colour1 = 0, colour2 = 0; - uint8 mixmask, mask = 0; - uint16 mix = 0xffff; - int fom_mask; - - while (input < end) - { - fom_mask = 0; - code = CVAL(input); - opcode = code >> 4; - /* Handle different opcode forms */ - switch (opcode) - { - case 0xc: - case 0xd: - case 0xe: - opcode -= 6; - count = code & 0xf; - offset = 16; - break; - case 0xf: - opcode = code & 0xf; - if (opcode < 9) - { - count = CVAL(input); - count |= CVAL(input) << 8; - } - else - { - count = (opcode < 0xb) ? 8 : 1; - } - offset = 0; - break; - default: - opcode >>= 1; - count = code & 0x1f; - offset = 32; - break; - } - /* Handle strange cases for counts */ - if (offset != 0) - { - isfillormix = ((opcode == 2) || (opcode == 7)); - if (count == 0) - { - if (isfillormix) - count = CVAL(input) + 1; - else - count = CVAL(input) + offset; - } - else if (isfillormix) - { - count <<= 3; - } - } - /* Read preliminary data */ - switch (opcode) - { - case 0: /* Fill */ - if ((lastopcode == opcode) && !((x == width) && (prevline == NULL))) - insertmix = True; - break; - case 8: /* Bicolour */ - CVAL2(input, colour1); - case 3: /* Colour */ - CVAL2(input, colour2); - break; - case 6: /* SetMix/Mix */ - case 7: /* SetMix/FillOrMix */ - CVAL2(input, mix); - opcode -= 5; - break; - case 9: /* FillOrMix_1 */ - mask = 0x03; - opcode = 0x02; - fom_mask = 3; - break; - case 0x0a: /* FillOrMix_2 */ - mask = 0x05; - opcode = 0x02; - fom_mask = 5; - break; - } - lastopcode = opcode; - mixmask = 0; - /* Output body */ - while (count > 0) - { - if (x >= width) - { - if (height <= 0) - return False; - x = 0; - height--; - prevline = line; - line = ((uint16 *) output) + height * width; - } - switch (opcode) - { - case 0: /* Fill */ - if (insertmix) - { - if (prevline == NULL) - line[x] = mix; - else - line[x] = prevline[x] ^ mix; - insertmix = False; - count--; - x++; - } - if (prevline == NULL) - { - REPEAT(line[x] = 0) - } - else - { - REPEAT(line[x] = prevline[x]) - } - break; - case 1: /* Mix */ - if (prevline == NULL) - { - REPEAT(line[x] = mix) - } - else - { - REPEAT(line[x] = prevline[x] ^ mix) - } - break; - case 2: /* Fill or Mix */ - if (prevline == NULL) - { - REPEAT - ( - MASK_UPDATE(); - if (mask & mixmask) - line[x] = mix; - else - line[x] = 0; - ) - } - else - { - REPEAT - ( - MASK_UPDATE(); - if (mask & mixmask) - line[x] = prevline[x] ^ mix; - else - line[x] = prevline[x]; - ) - } - break; - case 3: /* Colour */ - REPEAT(line[x] = colour2) - break; - case 4: /* Copy */ - REPEAT(CVAL2(input, line[x])) - break; - case 8: /* Bicolour */ - REPEAT - ( - if (bicolour) - { - line[x] = colour2; - bicolour = False; - } - else - { - line[x] = colour1; - bicolour = True; - count++; - } - ) - break; - case 0xd: /* White */ - REPEAT(line[x] = 0xffff) - break; - case 0xe: /* Black */ - REPEAT(line[x] = 0) - break; - default: - unimpl("bitmap opcode 0x%x\n", opcode); - return False; - } - } - } - return True; -} - -/* 3 byte bitmap decompress */ -static BOOL -bitmap_decompress3(uint8 * output, int width, int height, uint8 * input, int size) -{ - uint8 *end = input + size; - uint8 *prevline = NULL, *line = NULL; - int opcode, count, offset, isfillormix, x = width; - int lastopcode = -1, insertmix = False, bicolour = False; - uint8 code; - uint8 colour1[3] = {0, 0, 0}, colour2[3] = {0, 0, 0}; - uint8 mixmask, mask = 0; - uint8 mix[3] = {0xff, 0xff, 0xff}; - int fom_mask; - - while (input < end) - { - fom_mask = 0; - code = CVAL(input); - opcode = code >> 4; - /* Handle different opcode forms */ - switch (opcode) - { - case 0xc: - case 0xd: - case 0xe: - opcode -= 6; - count = code & 0xf; - offset = 16; - break; - case 0xf: - opcode = code & 0xf; - if (opcode < 9) - { - count = CVAL(input); - count |= CVAL(input) << 8; - } - else - { - count = (opcode < - 0xb) ? 8 : 1; - } - offset = 0; - break; - default: - opcode >>= 1; - count = code & 0x1f; - offset = 32; - break; - } - /* Handle strange cases for counts */ - if (offset != 0) - { - isfillormix = ((opcode == 2) || (opcode == 7)); - if (count == 0) - { - if (isfillormix) - count = CVAL(input) + 1; - else - count = CVAL(input) + offset; - } - else if (isfillormix) - { - count <<= 3; - } - } - /* Read preliminary data */ - switch (opcode) - { - case 0: /* Fill */ - if ((lastopcode == opcode) && !((x == width) && (prevline == NULL))) - insertmix = True; - break; - case 8: /* Bicolour */ - colour1[0] = CVAL(input); - colour1[1] = CVAL(input); - colour1[2] = CVAL(input); - case 3: /* Colour */ - colour2[0] = CVAL(input); - colour2[1] = CVAL(input); - colour2[2] = CVAL(input); - break; - case 6: /* SetMix/Mix */ - case 7: /* SetMix/FillOrMix */ - mix[0] = CVAL(input); - mix[1] = CVAL(input); - mix[2] = CVAL(input); - opcode -= 5; - break; - case 9: /* FillOrMix_1 */ - mask = 0x03; - opcode = 0x02; - fom_mask = 3; - break; - case 0x0a: /* FillOrMix_2 */ - mask = 0x05; - opcode = 0x02; - fom_mask = 5; - break; - } - lastopcode = opcode; - mixmask = 0; - /* Output body */ - while (count > 0) - { - if (x >= width) - { - if (height <= 0) - return False; - x = 0; - height--; - prevline = line; - line = output + height * (width * 3); - } - switch (opcode) - { - case 0: /* Fill */ - if (insertmix) - { - if (prevline == NULL) - { - line[x * 3] = mix[0]; - line[x * 3 + 1] = mix[1]; - line[x * 3 + 2] = mix[2]; - } - else - { - line[x * 3] = - prevline[x * 3] ^ mix[0]; - line[x * 3 + 1] = - prevline[x * 3 + 1] ^ mix[1]; - line[x * 3 + 2] = - prevline[x * 3 + 2] ^ mix[2]; - } - insertmix = False; - count--; - x++; - } - if (prevline == NULL) - { - REPEAT - ( - line[x * 3] = 0; - line[x * 3 + 1] = 0; - line[x * 3 + 2] = 0; - ) - } - else - { - REPEAT - ( - line[x * 3] = prevline[x * 3]; - line[x * 3 + 1] = prevline[x * 3 + 1]; - line[x * 3 + 2] = prevline[x * 3 + 2]; - ) - } - break; - case 1: /* Mix */ - if (prevline == NULL) - { - REPEAT - ( - line[x * 3] = mix[0]; - line[x * 3 + 1] = mix[1]; - line[x * 3 + 2] = mix[2]; - ) - } - else - { - REPEAT - ( - line[x * 3] = - prevline[x * 3] ^ mix[0]; - line[x * 3 + 1] = - prevline[x * 3 + 1] ^ mix[1]; - line[x * 3 + 2] = - prevline[x * 3 + 2] ^ mix[2]; - ) - } - break; - case 2: /* Fill or Mix */ - if (prevline == NULL) - { - REPEAT - ( - MASK_UPDATE(); - if (mask & mixmask) - { - line[x * 3] = mix[0]; - line[x * 3 + 1] = mix[1]; - line[x * 3 + 2] = mix[2]; - } - else - { - line[x * 3] = 0; - line[x * 3 + 1] = 0; - line[x * 3 + 2] = 0; - } - ) - } - else - { - REPEAT - ( - MASK_UPDATE(); - if (mask & mixmask) - { - line[x * 3] = - prevline[x * 3] ^ mix [0]; - line[x * 3 + 1] = - prevline[x * 3 + 1] ^ mix [1]; - line[x * 3 + 2] = - prevline[x * 3 + 2] ^ mix [2]; - } - else - { - line[x * 3] = - prevline[x * 3]; - line[x * 3 + 1] = - prevline[x * 3 + 1]; - line[x * 3 + 2] = - prevline[x * 3 + 2]; - } - ) - } - break; - case 3: /* Colour */ - REPEAT - ( - line[x * 3] = colour2 [0]; - line[x * 3 + 1] = colour2 [1]; - line[x * 3 + 2] = colour2 [2]; - ) - break; - case 4: /* Copy */ - REPEAT - ( - line[x * 3] = CVAL(input); - line[x * 3 + 1] = CVAL(input); - line[x * 3 + 2] = CVAL(input); - ) - break; - case 8: /* Bicolour */ - REPEAT - ( - if (bicolour) - { - line[x * 3] = colour2[0]; - line[x * 3 + 1] = colour2[1]; - line[x * 3 + 2] = colour2[2]; - bicolour = False; - } - else - { - line[x * 3] = colour1[0]; - line[x * 3 + 1] = colour1[1]; - line[x * 3 + 2] = colour1[2]; - bicolour = True; - count++; - } - ) - break; - case 0xd: /* White */ - REPEAT - ( - line[x * 3] = 0xff; - line[x * 3 + 1] = 0xff; - line[x * 3 + 2] = 0xff; - ) - break; - case 0xe: /* Black */ - REPEAT - ( - line[x * 3] = 0; - line[x * 3 + 1] = 0; - line[x * 3 + 2] = 0; - ) - break; - default: - unimpl("bitmap opcode 0x%x\n", opcode); - return False; - } - } - } - return True; -} - -/* main decompress function */ -BOOL -bitmap_decompress(uint8 * output, int width, int height, uint8 * input, int size, int Bpp) -{ - BOOL rv = False; - switch (Bpp) - { - case 1: - rv = bitmap_decompress1(output, width, height, input, size); - break; - case 2: - rv = bitmap_decompress2(output, width, height, input, size); - break; - case 3: - rv = bitmap_decompress3(output, width, height, input, size); - break; - } - return rv; -} - -/* 2 byte bitmap decompress */ -static BOOL -bitmap_decompress_ex_16_to_32(uint8 * output, int width, int height, uint8 * input, int size) -{ - uint8 * end = input + size; - int * prevline = NULL, * line = NULL; - int opcode, count, offset, isfillormix, x = width; - int lastopcode = -1, insertmix = False, bicolour = False; - uint8 code; - int colour1 = 0, colour2 = 0; - uint8 mixmask, mask = 0; - int mix = 0xffffff; - int fom_mask; - int p, r, g, b; - - while (input < end) - { - fom_mask = 0; - code = CVAL(input); - opcode = code >> 4; - /* Handle different opcode forms */ - switch (opcode) - { - case 0xc: - case 0xd: - case 0xe: - opcode -= 6; - count = code & 0xf; - offset = 16; - break; - case 0xf: - opcode = code & 0xf; - if (opcode < 9) - { - count = CVAL(input); - count |= CVAL(input) << 8; - } - else - { - count = (opcode < 0xb) ? 8 : 1; - } - offset = 0; - break; - default: - opcode >>= 1; - count = code & 0x1f; - offset = 32; - break; - } - /* Handle strange cases for counts */ - if (offset != 0) - { - isfillormix = ((opcode == 2) || (opcode == 7)); - if (count == 0) - { - if (isfillormix) - { - count = CVAL(input) + 1; - } - else - { - count = CVAL(input) + offset; - } - } - else if (isfillormix) - { - count <<= 3; - } - } - /* Read preliminary data */ - switch (opcode) - { - case 0: /* Fill */ - if ((lastopcode == opcode) && !((x == width) && (prevline == NULL))) - { - insertmix = True; - } - break; - case 8: /* Bicolour */ - CVAL2(input, p); - SPLIT_COLOUR16(p, r, g, b); - MAKE_COLOUR32(p, r, g, b); - colour1 = p; - case 3: /* Colour */ - CVAL2(input, p); - SPLIT_COLOUR16(p, r, g, b); - MAKE_COLOUR32(p, r, g, b); - colour2 = p; - break; - case 6: /* SetMix/Mix */ - case 7: /* SetMix/FillOrMix */ - CVAL2(input, p); - SPLIT_COLOUR16(p, r, g, b); - MAKE_COLOUR32(p, r, g, b); - mix = p; - opcode -= 5; - break; - case 9: /* FillOrMix_1 */ - mask = 0x03; - opcode = 0x02; - fom_mask = 3; - break; - case 0x0a: /* FillOrMix_2 */ - mask = 0x05; - opcode = 0x02; - fom_mask = 5; - break; - } - lastopcode = opcode; - mixmask = 0; - /* Output body */ - while (count > 0) - { - if (x >= width) - { - if (height <= 0) - { - return False; - } - x = 0; - height--; - prevline = line; - line = ((int *) output) + height * width; - } - switch (opcode) - { - case 0: /* Fill */ - if (insertmix) - { - if (prevline == NULL) - { - line[x] = mix; - } - else - { - line[x] = prevline[x] ^ mix; - } - insertmix = False; - count--; - x++; - } - if (prevline == NULL) - { - REPEAT(line[x] = 0) - } - else - { - REPEAT(line[x] = prevline[x]) - } - break; - case 1: /* Mix */ - if (prevline == NULL) - { - REPEAT(line[x] = mix) - } - else - { - REPEAT(line[x] = prevline[x] ^ mix) - } - break; - case 2: /* Fill or Mix */ - if (prevline == NULL) - { - REPEAT - ( - MASK_UPDATE(); - if (mask & mixmask) - { - line[x] = mix; - } - else - { - line[x] = 0; - } - ) - } - else - { - REPEAT - ( - MASK_UPDATE(); - if (mask & mixmask) - { - line[x] = prevline[x] ^ mix; - } - else - { - line[x] = prevline[x]; - } - ) - } - break; - case 3: /* Colour */ - REPEAT(line[x] = colour2) - break; - case 4: /* Copy */ - REPEAT - ( - CVAL2(input, p); - SPLIT_COLOUR16(p, r, g, b); - MAKE_COLOUR32(p, r, g, b); - line[x] = p; - ) - break; - case 8: /* Bicolour */ - REPEAT - ( - if (bicolour) - { - line[x] = colour2; - bicolour = False; - } - else - { - line[x] = colour1; - bicolour = True; - count++; - } - ) - break; - case 0xd: /* White */ - REPEAT(line[x] = 0xffffff) - break; - case 0xe: /* Black */ - REPEAT(line[x] = 0) - break; - default: - unimpl("bitmap opcode 0x%x\n", opcode); - return False; - } - } - } - return True; -} - -/* 3 byte bitmap decompress */ -static BOOL -bitmap_decompress_ex_24_to_32(uint8 * output, int width, int height, uint8 * input, int size) -{ - uint8 * end = input + size; - int * prevline = NULL, * line = NULL; - int opcode, count, offset, isfillormix, x = width; - int lastopcode = -1, insertmix = False, bicolour = False; - uint8 code; - int colour1 = 0, colour2 = 0; - uint8 mixmask, mask = 0; - int mix = 0xffffff; - int fom_mask; - int p, r, g, b; - - while (input < end) - { - fom_mask = 0; - code = CVAL(input); - opcode = code >> 4; - /* Handle different opcode forms */ - switch (opcode) - { - case 0xc: - case 0xd: - case 0xe: - opcode -= 6; - count = code & 0xf; - offset = 16; - break; - case 0xf: - opcode = code & 0xf; - if (opcode < 9) - { - count = CVAL(input); - count |= CVAL(input) << 8; - } - else - { - count = (opcode < - 0xb) ? 8 : 1; - } - offset = 0; - break; - default: - opcode >>= 1; - count = code & 0x1f; - offset = 32; - break; - } - /* Handle strange cases for counts */ - if (offset != 0) - { - isfillormix = ((opcode == 2) || (opcode == 7)); - if (count == 0) - { - if (isfillormix) - count = CVAL(input) + 1; - else - count = CVAL(input) + offset; - } - else if (isfillormix) - { - count <<= 3; - } - } - /* Read preliminary data */ - switch (opcode) - { - case 0: /* Fill */ - if ((lastopcode == opcode) && !((x == width) && (prevline == NULL))) - insertmix = True; - break; - case 8: /* Bicolour */ - b = CVAL(input); - g = CVAL(input); - r = CVAL(input); - MAKE_COLOUR32(p, r, g, b); - colour1 = p; - case 3: /* Colour */ - b = CVAL(input); - g = CVAL(input); - r = CVAL(input); - MAKE_COLOUR32(p, r, g, b); - colour2 = p; - break; - case 6: /* SetMix/Mix */ - case 7: /* SetMix/FillOrMix */ - b = CVAL(input); - g = CVAL(input); - r = CVAL(input); - MAKE_COLOUR32(p, r, g, b); - mix = p; - opcode -= 5; - break; - case 9: /* FillOrMix_1 */ - mask = 0x03; - opcode = 0x02; - fom_mask = 3; - break; - case 0x0a: /* FillOrMix_2 */ - mask = 0x05; - opcode = 0x02; - fom_mask = 5; - break; - } - lastopcode = opcode; - mixmask = 0; - /* Output body */ - while (count > 0) - { - if (x >= width) - { - if (height <= 0) - return False; - x = 0; - height--; - prevline = line; - line = ((int *) output) + height * width; - } - switch (opcode) - { - case 0: /* Fill */ - if (insertmix) - { - if (prevline == NULL) - { - line[x] = mix; - } - else - { - line[x] = prevline[x] ^ mix; - } - insertmix = False; - count--; - x++; - } - if (prevline == NULL) - { - REPEAT(line[x] = 0) - } - else - { - REPEAT(line[x] = prevline[x]) - } - break; - case 1: /* Mix */ - if (prevline == NULL) - { - REPEAT(line[x] = mix) - } - else - { - REPEAT(line[x] = prevline[x] ^ mix) - } - break; - case 2: /* Fill or Mix */ - if (prevline == NULL) - { - REPEAT - ( - MASK_UPDATE(); - if (mask & mixmask) - { - line[x] = mix; - } - else - { - line[x] = 0; - } - ) - } - else - { - REPEAT - ( - MASK_UPDATE(); - if (mask & mixmask) - { - line[x] = prevline[x] ^ mix; - } - else - { - line[x] = prevline[x]; - } - ) - } - break; - case 3: /* Colour */ - REPEAT(line[x] = colour2) - break; - case 4: /* Copy */ - REPEAT - ( - b = CVAL(input); - g = CVAL(input); - r = CVAL(input); - MAKE_COLOUR32(p, r, g, b); - line[x] = p; - ) - break; - case 8: /* Bicolour */ - REPEAT - ( - if (bicolour) - { - line[x] = colour2; - bicolour = False; - } - else - { - line[x] = colour1; - bicolour = True; - count++; - } - ) - break; - case 0xd: /* White */ - REPEAT(line[x] = 0xffffff); - break; - case 0xe: /* Black */ - REPEAT(line[x] = 0); - break; - default: - unimpl("bitmap opcode 0x%x\n", opcode); - return False; - } - } - } - return True; -} - -BOOL -bitmap_decompress_ex(uint8 * output, int width, int height, uint8 * input, int size, - int in_bpp, int out_bpp) -{ - if (in_bpp == 16 && out_bpp == 32) - { - return bitmap_decompress_ex_16_to_32(output, width, height, input, size); - } - else if (in_bpp == 24 && out_bpp == 32) - { - return bitmap_decompress_ex_24_to_32(output, width, height, input, size); - } - return False; -} - -/* *INDENT-ON* */ +/* -*- c-basic-offset: 8 -*- + rdesktop: A Remote Desktop Protocol client. + Bitmap decompression routines + Copyright (C) Matthew Chapman 1999-2005 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +/* three seperate function for speed when decompressing the bitmaps */ +/* when modifing one function make the change in the others */ +/* comment out #define BITMAP_SPEED_OVER_SIZE below for one slower function */ +/* j@american-data.com */ + +/* indent is confused by this file */ +/* *INDENT-OFF* */ + +#include "rdesktop.h" +#include "uimain.h" + +#define CVAL(p) (*(p++)) +#ifdef NEED_ALIGN +#ifdef L_ENDIAN +#define CVAL2(p, v) { v = (*(p++)); v |= (*(p++)) << 8; } +#else +#define CVAL2(p, v) { v = (*(p++)) << 8; v |= (*(p++)); } +#endif /* L_ENDIAN */ +#else +#define CVAL2(p, v) { v = (*((uint16*)p)); p += 2; } +#endif /* NEED_ALIGN */ + +#define UNROLL8(exp) { exp exp exp exp exp exp exp exp } + +#define REPEAT(statement) \ +{ \ + while((count & ~0x7) && ((x+8) < width)) \ + UNROLL8( statement; count--; x++; ); \ + \ + while((count > 0) && (x < width)) \ + { \ + statement; \ + count--; \ + x++; \ + } \ +} + +#define MASK_UPDATE() \ +{ \ + mixmask <<= 1; \ + if (mixmask == 0) \ + { \ + mask = fom_mask ? fom_mask : CVAL(input); \ + mixmask = 1; \ + } \ +} + +/* 1 byte bitmap decompress */ +static BOOL +bitmap_decompress1(uint8 * output, int width, int height, uint8 * input, int size) +{ + uint8 *end = input + size; + uint8 *prevline = NULL, *line = NULL; + int opcode, count, offset, isfillormix, x = width; + int lastopcode = -1, insertmix = False, bicolour = False; + uint8 code; + uint8 colour1 = 0, colour2 = 0; + uint8 mixmask, mask = 0; + uint8 mix = 0xff; + int fom_mask; + + while (input < end) + { + fom_mask = 0; + code = CVAL(input); + opcode = code >> 4; + /* Handle different opcode forms */ + switch (opcode) + { + case 0xc: + case 0xd: + case 0xe: + opcode -= 6; + count = code & 0xf; + offset = 16; + break; + case 0xf: + opcode = code & 0xf; + if (opcode < 9) + { + count = CVAL(input); + count |= CVAL(input) << 8; + } + else + { + count = (opcode < 0xb) ? 8 : 1; + } + offset = 0; + break; + default: + opcode >>= 1; + count = code & 0x1f; + offset = 32; + break; + } + /* Handle strange cases for counts */ + if (offset != 0) + { + isfillormix = ((opcode == 2) || (opcode == 7)); + if (count == 0) + { + if (isfillormix) + count = CVAL(input) + 1; + else + count = CVAL(input) + offset; + } + else if (isfillormix) + { + count <<= 3; + } + } + /* Read preliminary data */ + switch (opcode) + { + case 0: /* Fill */ + if ((lastopcode == opcode) && !((x == width) && (prevline == NULL))) + insertmix = True; + break; + case 8: /* Bicolour */ + colour1 = CVAL(input); + case 3: /* Colour */ + colour2 = CVAL(input); + break; + case 6: /* SetMix/Mix */ + case 7: /* SetMix/FillOrMix */ + mix = CVAL(input); + opcode -= 5; + break; + case 9: /* FillOrMix_1 */ + mask = 0x03; + opcode = 0x02; + fom_mask = 3; + break; + case 0x0a: /* FillOrMix_2 */ + mask = 0x05; + opcode = 0x02; + fom_mask = 5; + break; + } + lastopcode = opcode; + mixmask = 0; + /* Output body */ + while (count > 0) + { + if (x >= width) + { + if (height <= 0) + return False; + x = 0; + height--; + prevline = line; + line = output + height * width; + } + switch (opcode) + { + case 0: /* Fill */ + if (insertmix) + { + if (prevline == NULL) + line[x] = mix; + else + line[x] = prevline[x] ^ mix; + insertmix = False; + count--; + x++; + } + if (prevline == NULL) + { + REPEAT(line[x] = 0) + } + else + { + REPEAT(line[x] = prevline[x]) + } + break; + case 1: /* Mix */ + if (prevline == NULL) + { + REPEAT(line[x] = mix) + } + else + { + REPEAT(line[x] = prevline[x] ^ mix) + } + break; + case 2: /* Fill or Mix */ + if (prevline == NULL) + { + REPEAT + ( + MASK_UPDATE(); + if (mask & mixmask) + line[x] = mix; + else + line[x] = 0; + ) + } + else + { + REPEAT + ( + MASK_UPDATE(); + if (mask & mixmask) + line[x] = prevline[x] ^ mix; + else + line[x] = prevline[x]; + ) + } + break; + case 3: /* Colour */ + REPEAT(line[x] = colour2) + break; + case 4: /* Copy */ + REPEAT(line[x] = CVAL(input)) + break; + case 8: /* Bicolour */ + REPEAT + ( + if (bicolour) + { + line[x] = colour2; + bicolour = False; + } + else + { + line[x] = colour1; + bicolour = True; count++; + } + ) + break; + case 0xd: /* White */ + REPEAT(line[x] = 0xff) + break; + case 0xe: /* Black */ + REPEAT(line[x] = 0) + break; + default: + unimpl("bitmap opcode 0x%x\n", opcode); + return False; + } + } + } + return True; +} + +/* 2 byte bitmap decompress */ +static BOOL +bitmap_decompress2(uint8 * output, int width, int height, uint8 * input, int size) +{ + uint8 *end = input + size; + uint16 *prevline = NULL, *line = NULL; + int opcode, count, offset, isfillormix, x = width; + int lastopcode = -1, insertmix = False, bicolour = False; + uint8 code; + uint16 colour1 = 0, colour2 = 0; + uint8 mixmask, mask = 0; + uint16 mix = 0xffff; + int fom_mask; + + while (input < end) + { + fom_mask = 0; + code = CVAL(input); + opcode = code >> 4; + /* Handle different opcode forms */ + switch (opcode) + { + case 0xc: + case 0xd: + case 0xe: + opcode -= 6; + count = code & 0xf; + offset = 16; + break; + case 0xf: + opcode = code & 0xf; + if (opcode < 9) + { + count = CVAL(input); + count |= CVAL(input) << 8; + } + else + { + count = (opcode < 0xb) ? 8 : 1; + } + offset = 0; + break; + default: + opcode >>= 1; + count = code & 0x1f; + offset = 32; + break; + } + /* Handle strange cases for counts */ + if (offset != 0) + { + isfillormix = ((opcode == 2) || (opcode == 7)); + if (count == 0) + { + if (isfillormix) + count = CVAL(input) + 1; + else + count = CVAL(input) + offset; + } + else if (isfillormix) + { + count <<= 3; + } + } + /* Read preliminary data */ + switch (opcode) + { + case 0: /* Fill */ + if ((lastopcode == opcode) && !((x == width) && (prevline == NULL))) + insertmix = True; + break; + case 8: /* Bicolour */ + CVAL2(input, colour1); + case 3: /* Colour */ + CVAL2(input, colour2); + break; + case 6: /* SetMix/Mix */ + case 7: /* SetMix/FillOrMix */ + CVAL2(input, mix); + opcode -= 5; + break; + case 9: /* FillOrMix_1 */ + mask = 0x03; + opcode = 0x02; + fom_mask = 3; + break; + case 0x0a: /* FillOrMix_2 */ + mask = 0x05; + opcode = 0x02; + fom_mask = 5; + break; + } + lastopcode = opcode; + mixmask = 0; + /* Output body */ + while (count > 0) + { + if (x >= width) + { + if (height <= 0) + return False; + x = 0; + height--; + prevline = line; + line = ((uint16 *) output) + height * width; + } + switch (opcode) + { + case 0: /* Fill */ + if (insertmix) + { + if (prevline == NULL) + line[x] = mix; + else + line[x] = prevline[x] ^ mix; + insertmix = False; + count--; + x++; + } + if (prevline == NULL) + { + REPEAT(line[x] = 0) + } + else + { + REPEAT(line[x] = prevline[x]) + } + break; + case 1: /* Mix */ + if (prevline == NULL) + { + REPEAT(line[x] = mix) + } + else + { + REPEAT(line[x] = prevline[x] ^ mix) + } + break; + case 2: /* Fill or Mix */ + if (prevline == NULL) + { + REPEAT + ( + MASK_UPDATE(); + if (mask & mixmask) + line[x] = mix; + else + line[x] = 0; + ) + } + else + { + REPEAT + ( + MASK_UPDATE(); + if (mask & mixmask) + line[x] = prevline[x] ^ mix; + else + line[x] = prevline[x]; + ) + } + break; + case 3: /* Colour */ + REPEAT(line[x] = colour2) + break; + case 4: /* Copy */ + REPEAT(CVAL2(input, line[x])) + break; + case 8: /* Bicolour */ + REPEAT + ( + if (bicolour) + { + line[x] = colour2; + bicolour = False; + } + else + { + line[x] = colour1; + bicolour = True; + count++; + } + ) + break; + case 0xd: /* White */ + REPEAT(line[x] = 0xffff) + break; + case 0xe: /* Black */ + REPEAT(line[x] = 0) + break; + default: + unimpl("bitmap opcode 0x%x\n", opcode); + return False; + } + } + } + return True; +} + +/* 3 byte bitmap decompress */ +static BOOL +bitmap_decompress3(uint8 * output, int width, int height, uint8 * input, int size) +{ + uint8 *end = input + size; + uint8 *prevline = NULL, *line = NULL; + int opcode, count, offset, isfillormix, x = width; + int lastopcode = -1, insertmix = False, bicolour = False; + uint8 code; + uint8 colour1[3] = {0, 0, 0}, colour2[3] = {0, 0, 0}; + uint8 mixmask, mask = 0; + uint8 mix[3] = {0xff, 0xff, 0xff}; + int fom_mask; + + while (input < end) + { + fom_mask = 0; + code = CVAL(input); + opcode = code >> 4; + /* Handle different opcode forms */ + switch (opcode) + { + case 0xc: + case 0xd: + case 0xe: + opcode -= 6; + count = code & 0xf; + offset = 16; + break; + case 0xf: + opcode = code & 0xf; + if (opcode < 9) + { + count = CVAL(input); + count |= CVAL(input) << 8; + } + else + { + count = (opcode < + 0xb) ? 8 : 1; + } + offset = 0; + break; + default: + opcode >>= 1; + count = code & 0x1f; + offset = 32; + break; + } + /* Handle strange cases for counts */ + if (offset != 0) + { + isfillormix = ((opcode == 2) || (opcode == 7)); + if (count == 0) + { + if (isfillormix) + count = CVAL(input) + 1; + else + count = CVAL(input) + offset; + } + else if (isfillormix) + { + count <<= 3; + } + } + /* Read preliminary data */ + switch (opcode) + { + case 0: /* Fill */ + if ((lastopcode == opcode) && !((x == width) && (prevline == NULL))) + insertmix = True; + break; + case 8: /* Bicolour */ + colour1[0] = CVAL(input); + colour1[1] = CVAL(input); + colour1[2] = CVAL(input); + case 3: /* Colour */ + colour2[0] = CVAL(input); + colour2[1] = CVAL(input); + colour2[2] = CVAL(input); + break; + case 6: /* SetMix/Mix */ + case 7: /* SetMix/FillOrMix */ + mix[0] = CVAL(input); + mix[1] = CVAL(input); + mix[2] = CVAL(input); + opcode -= 5; + break; + case 9: /* FillOrMix_1 */ + mask = 0x03; + opcode = 0x02; + fom_mask = 3; + break; + case 0x0a: /* FillOrMix_2 */ + mask = 0x05; + opcode = 0x02; + fom_mask = 5; + break; + } + lastopcode = opcode; + mixmask = 0; + /* Output body */ + while (count > 0) + { + if (x >= width) + { + if (height <= 0) + return False; + x = 0; + height--; + prevline = line; + line = output + height * (width * 3); + } + switch (opcode) + { + case 0: /* Fill */ + if (insertmix) + { + if (prevline == NULL) + { + line[x * 3] = mix[0]; + line[x * 3 + 1] = mix[1]; + line[x * 3 + 2] = mix[2]; + } + else + { + line[x * 3] = + prevline[x * 3] ^ mix[0]; + line[x * 3 + 1] = + prevline[x * 3 + 1] ^ mix[1]; + line[x * 3 + 2] = + prevline[x * 3 + 2] ^ mix[2]; + } + insertmix = False; + count--; + x++; + } + if (prevline == NULL) + { + REPEAT + ( + line[x * 3] = 0; + line[x * 3 + 1] = 0; + line[x * 3 + 2] = 0; + ) + } + else + { + REPEAT + ( + line[x * 3] = prevline[x * 3]; + line[x * 3 + 1] = prevline[x * 3 + 1]; + line[x * 3 + 2] = prevline[x * 3 + 2]; + ) + } + break; + case 1: /* Mix */ + if (prevline == NULL) + { + REPEAT + ( + line[x * 3] = mix[0]; + line[x * 3 + 1] = mix[1]; + line[x * 3 + 2] = mix[2]; + ) + } + else + { + REPEAT + ( + line[x * 3] = + prevline[x * 3] ^ mix[0]; + line[x * 3 + 1] = + prevline[x * 3 + 1] ^ mix[1]; + line[x * 3 + 2] = + prevline[x * 3 + 2] ^ mix[2]; + ) + } + break; + case 2: /* Fill or Mix */ + if (prevline == NULL) + { + REPEAT + ( + MASK_UPDATE(); + if (mask & mixmask) + { + line[x * 3] = mix[0]; + line[x * 3 + 1] = mix[1]; + line[x * 3 + 2] = mix[2]; + } + else + { + line[x * 3] = 0; + line[x * 3 + 1] = 0; + line[x * 3 + 2] = 0; + } + ) + } + else + { + REPEAT + ( + MASK_UPDATE(); + if (mask & mixmask) + { + line[x * 3] = + prevline[x * 3] ^ mix [0]; + line[x * 3 + 1] = + prevline[x * 3 + 1] ^ mix [1]; + line[x * 3 + 2] = + prevline[x * 3 + 2] ^ mix [2]; + } + else + { + line[x * 3] = + prevline[x * 3]; + line[x * 3 + 1] = + prevline[x * 3 + 1]; + line[x * 3 + 2] = + prevline[x * 3 + 2]; + } + ) + } + break; + case 3: /* Colour */ + REPEAT + ( + line[x * 3] = colour2 [0]; + line[x * 3 + 1] = colour2 [1]; + line[x * 3 + 2] = colour2 [2]; + ) + break; + case 4: /* Copy */ + REPEAT + ( + line[x * 3] = CVAL(input); + line[x * 3 + 1] = CVAL(input); + line[x * 3 + 2] = CVAL(input); + ) + break; + case 8: /* Bicolour */ + REPEAT + ( + if (bicolour) + { + line[x * 3] = colour2[0]; + line[x * 3 + 1] = colour2[1]; + line[x * 3 + 2] = colour2[2]; + bicolour = False; + } + else + { + line[x * 3] = colour1[0]; + line[x * 3 + 1] = colour1[1]; + line[x * 3 + 2] = colour1[2]; + bicolour = True; + count++; + } + ) + break; + case 0xd: /* White */ + REPEAT + ( + line[x * 3] = 0xff; + line[x * 3 + 1] = 0xff; + line[x * 3 + 2] = 0xff; + ) + break; + case 0xe: /* Black */ + REPEAT + ( + line[x * 3] = 0; + line[x * 3 + 1] = 0; + line[x * 3 + 2] = 0; + ) + break; + default: + unimpl("bitmap opcode 0x%x\n", opcode); + return False; + } + } + } + return True; +} + +/* main decompress function */ +BOOL +bitmap_decompress(uint8 * output, int width, int height, uint8 * input, int size, int Bpp) +{ + BOOL rv = False; + switch (Bpp) + { + case 1: + rv = bitmap_decompress1(output, width, height, input, size); + break; + case 2: + rv = bitmap_decompress2(output, width, height, input, size); + break; + case 3: + rv = bitmap_decompress3(output, width, height, input, size); + break; + } + return rv; +} + +/* 2 byte bitmap decompress */ +static BOOL +bitmap_decompress_ex_16_to_32(uint8 * output, int width, int height, uint8 * input, int size) +{ + uint8 * end = input + size; + int * prevline = NULL, * line = NULL; + int opcode, count, offset, isfillormix, x = width; + int lastopcode = -1, insertmix = False, bicolour = False; + uint8 code; + int colour1 = 0, colour2 = 0; + uint8 mixmask, mask = 0; + int mix = 0xffffff; + int fom_mask; + int p, r, g, b; + + while (input < end) + { + fom_mask = 0; + code = CVAL(input); + opcode = code >> 4; + /* Handle different opcode forms */ + switch (opcode) + { + case 0xc: + case 0xd: + case 0xe: + opcode -= 6; + count = code & 0xf; + offset = 16; + break; + case 0xf: + opcode = code & 0xf; + if (opcode < 9) + { + count = CVAL(input); + count |= CVAL(input) << 8; + } + else + { + count = (opcode < 0xb) ? 8 : 1; + } + offset = 0; + break; + default: + opcode >>= 1; + count = code & 0x1f; + offset = 32; + break; + } + /* Handle strange cases for counts */ + if (offset != 0) + { + isfillormix = ((opcode == 2) || (opcode == 7)); + if (count == 0) + { + if (isfillormix) + { + count = CVAL(input) + 1; + } + else + { + count = CVAL(input) + offset; + } + } + else if (isfillormix) + { + count <<= 3; + } + } + /* Read preliminary data */ + switch (opcode) + { + case 0: /* Fill */ + if ((lastopcode == opcode) && !((x == width) && (prevline == NULL))) + { + insertmix = True; + } + break; + case 8: /* Bicolour */ + CVAL2(input, p); + SPLIT_COLOUR16(p, r, g, b); + MAKE_COLOUR32(p, r, g, b); + colour1 = p; + case 3: /* Colour */ + CVAL2(input, p); + SPLIT_COLOUR16(p, r, g, b); + MAKE_COLOUR32(p, r, g, b); + colour2 = p; + break; + case 6: /* SetMix/Mix */ + case 7: /* SetMix/FillOrMix */ + CVAL2(input, p); + SPLIT_COLOUR16(p, r, g, b); + MAKE_COLOUR32(p, r, g, b); + mix = p; + opcode -= 5; + break; + case 9: /* FillOrMix_1 */ + mask = 0x03; + opcode = 0x02; + fom_mask = 3; + break; + case 0x0a: /* FillOrMix_2 */ + mask = 0x05; + opcode = 0x02; + fom_mask = 5; + break; + } + lastopcode = opcode; + mixmask = 0; + /* Output body */ + while (count > 0) + { + if (x >= width) + { + if (height <= 0) + { + return False; + } + x = 0; + height--; + prevline = line; + line = ((int *) output) + height * width; + } + switch (opcode) + { + case 0: /* Fill */ + if (insertmix) + { + if (prevline == NULL) + { + line[x] = mix; + } + else + { + line[x] = prevline[x] ^ mix; + } + insertmix = False; + count--; + x++; + } + if (prevline == NULL) + { + REPEAT(line[x] = 0) + } + else + { + REPEAT(line[x] = prevline[x]) + } + break; + case 1: /* Mix */ + if (prevline == NULL) + { + REPEAT(line[x] = mix) + } + else + { + REPEAT(line[x] = prevline[x] ^ mix) + } + break; + case 2: /* Fill or Mix */ + if (prevline == NULL) + { + REPEAT + ( + MASK_UPDATE(); + if (mask & mixmask) + { + line[x] = mix; + } + else + { + line[x] = 0; + } + ) + } + else + { + REPEAT + ( + MASK_UPDATE(); + if (mask & mixmask) + { + line[x] = prevline[x] ^ mix; + } + else + { + line[x] = prevline[x]; + } + ) + } + break; + case 3: /* Colour */ + REPEAT(line[x] = colour2) + break; + case 4: /* Copy */ + REPEAT + ( + CVAL2(input, p); + SPLIT_COLOUR16(p, r, g, b); + MAKE_COLOUR32(p, r, g, b); + line[x] = p; + ) + break; + case 8: /* Bicolour */ + REPEAT + ( + if (bicolour) + { + line[x] = colour2; + bicolour = False; + } + else + { + line[x] = colour1; + bicolour = True; + count++; + } + ) + break; + case 0xd: /* White */ + REPEAT(line[x] = 0xffffff) + break; + case 0xe: /* Black */ + REPEAT(line[x] = 0) + break; + default: + unimpl("bitmap opcode 0x%x\n", opcode); + return False; + } + } + } + return True; +} + +/* 3 byte bitmap decompress */ +static BOOL +bitmap_decompress_ex_24_to_32(uint8 * output, int width, int height, uint8 * input, int size) +{ + uint8 * end = input + size; + int * prevline = NULL, * line = NULL; + int opcode, count, offset, isfillormix, x = width; + int lastopcode = -1, insertmix = False, bicolour = False; + uint8 code; + int colour1 = 0, colour2 = 0; + uint8 mixmask, mask = 0; + int mix = 0xffffff; + int fom_mask; + int p, r, g, b; + + while (input < end) + { + fom_mask = 0; + code = CVAL(input); + opcode = code >> 4; + /* Handle different opcode forms */ + switch (opcode) + { + case 0xc: + case 0xd: + case 0xe: + opcode -= 6; + count = code & 0xf; + offset = 16; + break; + case 0xf: + opcode = code & 0xf; + if (opcode < 9) + { + count = CVAL(input); + count |= CVAL(input) << 8; + } + else + { + count = (opcode < + 0xb) ? 8 : 1; + } + offset = 0; + break; + default: + opcode >>= 1; + count = code & 0x1f; + offset = 32; + break; + } + /* Handle strange cases for counts */ + if (offset != 0) + { + isfillormix = ((opcode == 2) || (opcode == 7)); + if (count == 0) + { + if (isfillormix) + count = CVAL(input) + 1; + else + count = CVAL(input) + offset; + } + else if (isfillormix) + { + count <<= 3; + } + } + /* Read preliminary data */ + switch (opcode) + { + case 0: /* Fill */ + if ((lastopcode == opcode) && !((x == width) && (prevline == NULL))) + insertmix = True; + break; + case 8: /* Bicolour */ + b = CVAL(input); + g = CVAL(input); + r = CVAL(input); + MAKE_COLOUR32(p, r, g, b); + colour1 = p; + case 3: /* Colour */ + b = CVAL(input); + g = CVAL(input); + r = CVAL(input); + MAKE_COLOUR32(p, r, g, b); + colour2 = p; + break; + case 6: /* SetMix/Mix */ + case 7: /* SetMix/FillOrMix */ + b = CVAL(input); + g = CVAL(input); + r = CVAL(input); + MAKE_COLOUR32(p, r, g, b); + mix = p; + opcode -= 5; + break; + case 9: /* FillOrMix_1 */ + mask = 0x03; + opcode = 0x02; + fom_mask = 3; + break; + case 0x0a: /* FillOrMix_2 */ + mask = 0x05; + opcode = 0x02; + fom_mask = 5; + break; + } + lastopcode = opcode; + mixmask = 0; + /* Output body */ + while (count > 0) + { + if (x >= width) + { + if (height <= 0) + return False; + x = 0; + height--; + prevline = line; + line = ((int *) output) + height * width; + } + switch (opcode) + { + case 0: /* Fill */ + if (insertmix) + { + if (prevline == NULL) + { + line[x] = mix; + } + else + { + line[x] = prevline[x] ^ mix; + } + insertmix = False; + count--; + x++; + } + if (prevline == NULL) + { + REPEAT(line[x] = 0) + } + else + { + REPEAT(line[x] = prevline[x]) + } + break; + case 1: /* Mix */ + if (prevline == NULL) + { + REPEAT(line[x] = mix) + } + else + { + REPEAT(line[x] = prevline[x] ^ mix) + } + break; + case 2: /* Fill or Mix */ + if (prevline == NULL) + { + REPEAT + ( + MASK_UPDATE(); + if (mask & mixmask) + { + line[x] = mix; + } + else + { + line[x] = 0; + } + ) + } + else + { + REPEAT + ( + MASK_UPDATE(); + if (mask & mixmask) + { + line[x] = prevline[x] ^ mix; + } + else + { + line[x] = prevline[x]; + } + ) + } + break; + case 3: /* Colour */ + REPEAT(line[x] = colour2) + break; + case 4: /* Copy */ + REPEAT + ( + b = CVAL(input); + g = CVAL(input); + r = CVAL(input); + MAKE_COLOUR32(p, r, g, b); + line[x] = p; + ) + break; + case 8: /* Bicolour */ + REPEAT + ( + if (bicolour) + { + line[x] = colour2; + bicolour = False; + } + else + { + line[x] = colour1; + bicolour = True; + count++; + } + ) + break; + case 0xd: /* White */ + REPEAT(line[x] = 0xffffff); + break; + case 0xe: /* Black */ + REPEAT(line[x] = 0); + break; + default: + unimpl("bitmap opcode 0x%x\n", opcode); + return False; + } + } + } + return True; +} + +BOOL +bitmap_decompress_ex(uint8 * output, int width, int height, uint8 * input, int size, + int in_bpp, int out_bpp) +{ + if (in_bpp == 16 && out_bpp == 32) + { + return bitmap_decompress_ex_16_to_32(output, width, height, input, size); + } + else if (in_bpp == 24 && out_bpp == 32) + { + return bitmap_decompress_ex_24_to_32(output, width, height, input, size); + } + return False; +} + +/* *INDENT-ON* */ -- cgit v1.2.1