--- sourceforge.net/trunk/rdesktop/bitmap.c	2000/07/25 12:34:29	9
+++ sourceforge.net/trunk/rdesktop/bitmap.c	2004/04/15 17:28:30	649
@@ -1,46 +1,84 @@
 /*
    rdesktop: A Remote Desktop Protocol client.
    Bitmap decompression routines
-   Copyright (C) Matthew Chapman 1999-2000
-   
+   Copyright (C) Matthew Chapman 1999-2002
+
    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.
 */
 
-#include "includes.h"
+/* 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 */
+
+#define BITMAP_SPEED_OVER_SIZE
+
+/* indent is confused by this file */
+/* *INDENT-OFF* */
+
+#include "rdesktop.h"
 
 #define CVAL(p)   (*(p++))
-#define SVAL(p)   ((*((p++) + 1) << 8) | CVAL(p))
+#define CVAL2(p)   (*(((uint16*)p)++)) /* for 16 bit */
+
+#define UNROLL8(exp) { exp exp exp exp exp exp exp exp }
 
-#define REPEAT(statement) { while ((count > 0) && (x < width)) { statement; count--; x++; } }
-#define MASK_UPDATE() { mixmask <<= 1; if (mixmask == 0) { mask = CVAL(input); mixmask = 1; } }
+#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; \
+	} \
+}
+
+#ifdef BITMAP_SPEED_OVER_SIZE
 
-BOOL bitmap_decompress(unsigned char *output, int width, int height,
-		       unsigned char *input, int size)
+/* 1 byte bitmap decompress */
+static BOOL
+bitmap_decompress1(uint8 * output, int width, int height, uint8 * input, int size)
 {
-	unsigned char *end = input + size;
-	unsigned char *prevline, *line = NULL;
+	uint8 *end = input + size;
+	uint8 *prevline = NULL, *line = NULL;
 	int opcode, count, offset, isfillormix, x = width;
-	int lastopcode = -1, insertmix = False;
-	uint8 code, colour1, colour2, mask, mixmask;
+	int lastopcode = -1, insertmix = False, bicolour = False;
+	uint8 code;
+	uint8 colour1 = 0, colour2 = 0;
+	uint8 mixmask, mask = 0;
 	uint8 mix = 0xff;
+	int fom_mask = 0;
 
 	while (input < end)
 	{
+		fom_mask = 0;
 		code = CVAL(input);
 		opcode = code >> 4;
-
 		/* Handle different opcode forms */
 		switch (opcode)
 		{
@@ -51,25 +89,29 @@
 				count = code & 0xf;
 				offset = 16;
 				break;
-
 			case 0xf:
 				opcode = code & 0xf;
-				count = (opcode < 13) ? SVAL(input) : 1;
+				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)
@@ -82,28 +124,36 @@
 				count <<= 3;
 			}
 		}
-
 		/* Read preliminary data */
-		mixmask = 0;
 		switch (opcode)
 		{
-			case 0: /* Fill */
-				if ((lastopcode == opcode) && (x != width))
+			case 0:	/* Fill */
+				if ((lastopcode == opcode) && !((x == width) && (prevline == NULL)))
 					insertmix = True;
 				break;
-			case 8: /* Bicolour */
+			case 8:	/* Bicolour */
 				colour1 = CVAL(input);
-			case 3: /* Colour */
+			case 3:	/* Colour */
 				colour2 = CVAL(input);
 				break;
-			case 6: /* SetMix/Mix */
-			case 7: /* SetMix/FillOrMix */
+			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)
 		{
@@ -111,85 +161,820 @@
 			{
 				if (height <= 0)
 					return False;
-
 				x = 0;
 				height--;
-
 				prevline = line;
 				line = output + height * width;
 			}
-
 			switch (opcode)
 			{
-				case 0: /* Fill */
+				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 = 0;
 
-				case 1: /* Mix */
+	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 = CVAL2(input);
+			case 3:	/* Colour */
+				colour2 = CVAL2(input);
+				break;
+			case 6:	/* SetMix/Mix */
+			case 7:	/* SetMix/FillOrMix */
+				mix = CVAL2(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 = ((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(line[x] = CVAL2(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] = 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 = 0;
+
+	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;
+}
+
+#else
+
+static uint32
+cvalx(uint8 **input, int Bpp)
+{
+	uint32 rv = 0;
+	memcpy(&rv, *input, Bpp);
+	*input += Bpp;
+	return rv;
+}
+
+static void
+setli(uint8 *input, int offset, uint32 value, int Bpp)
+{
+	input += offset * Bpp;
+	memcpy(input, &value, Bpp);
+}
+
+static uint32
+getli(uint8 *input, int offset, int Bpp)
+{
+	uint32 rv = 0;
+	input += offset * Bpp;
+	memcpy(&rv, input, Bpp);
+	return rv;
+}
+
+static BOOL
+bitmap_decompressx(uint8 *output, int width, int height, uint8 *input, int size, int Bpp)
+{
+	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;
+	uint32 colour1 = 0, colour2 = 0;
+	uint8 mixmask, mask = 0;
+	uint32 mix = 0xffffffff;
+	int fom_mask = 0;
+
+	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 = cvalx(&input, Bpp);
+			case 3:	/* Colour */
+				colour2 = cvalx(&input, Bpp);
+				break;
+			case 6:	/* SetMix/Mix */
+			case 7:	/* SetMix/FillOrMix */
+				mix = cvalx(&input, Bpp);
+				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 * Bpp;
+			}
+
+			switch (opcode)
+			{
+				case 0:	/* Fill */
+					if (insertmix)
+					{
+						if (prevline == NULL)
+							setli(line, x, mix, Bpp);
+						else
+							setli(line, x,
+							      getli(prevline, x, Bpp) ^ mix, Bpp);
+
+						insertmix = False;
+						count--;
+						x++;
+					}
 
-				case 2: /* Fill or Mix */
 					if (prevline == NULL)
-					    REPEAT( 
-						   MASK_UPDATE();
+					{
+					REPEAT(setli(line, x, 0, Bpp))}
+					else
+					{
+						REPEAT(setli
+						       (line, x, getli(prevline, x, Bpp), Bpp));
+					}
+					break;
 
-						   if (mask & mixmask)
-							line[x] = mix;
-						   else
-							line[x] = 0;
-					    )
+				case 1:	/* Mix */
+					if (prevline == NULL)
+					{
+						REPEAT(setli(line, x, mix, Bpp));
+					}
 					else
-					    REPEAT(
-						   MASK_UPDATE();
+					{
+						REPEAT(setli
+						       (line, x, getli(prevline, x, Bpp) ^ mix,
+							Bpp));
+					}
+					break;
 
-						   if (mask & mixmask)
-							line[x] = prevline[x] ^ mix;
-						   else
-							line[x] = prevline[x];
-					    )
+				case 2:	/* Fill or Mix */
+					if (prevline == NULL)
+					{
+						REPEAT(MASK_UPDATE();
+						       if (mask & mixmask) setli(line, x, mix, Bpp);
+						       else
+						       setli(line, x, 0, Bpp););
+					}
+					else
+					{
+						REPEAT(MASK_UPDATE();
+						       if (mask & mixmask)
+						       setli(line, x, getli(prevline, x, Bpp) ^ mix,
+							     Bpp);
+						       else
+						       setli(line, x, getli(prevline, x, Bpp),
+							     Bpp););
+					}
 					break;
 
-				case 3: /* Colour */
-					REPEAT(line[x] = colour2)
+				case 3:	/* Colour */
+					REPEAT(setli(line, x, colour2, Bpp));
 					break;
 
-				case 4: /* Copy */
-					REPEAT(line[x] = CVAL(input))
+				case 4:	/* Copy */
+					REPEAT(setli(line, x, cvalx(&input, Bpp), Bpp));
 					break;
 
-				case 8: /* Bicolour */
-					REPEAT(line[x] = colour1; line[++x] = colour2)
+				case 8:	/* Bicolour */
+					REPEAT(if (bicolour)
+					       {
+					       setli(line, x, colour2, Bpp); bicolour = False;}
+					       else
+					       {
+					       setli(line, x, colour1, Bpp); bicolour = True;
+					       count++;}
+					);
 					break;
 
-				case 13: /* White */
-					REPEAT(line[x] = 0xff)
+				case 0xd:	/* White */
+					REPEAT(setli(line, x, 0xffffffff, Bpp));
 					break;
 
-				case 14: /* Black */
-					REPEAT(line[x] = 0x00)
+				case 0xe:	/* Black */
+					REPEAT(setli(line, x, 0, Bpp));
 					break;
 
 				default:
-					NOTIMP("bitmap opcode 0x%x\n", opcode);
+					unimpl("bitmap opcode 0x%x\n", opcode);
 					return False;
 			}
 		}
@@ -197,3 +982,32 @@
 
 	return True;
 }
+
+#endif
+
+/* main decompress function */
+BOOL
+bitmap_decompress(uint8 * output, int width, int height, uint8 * input, int size, int Bpp)
+{
+#ifdef BITMAP_SPEED_OVER_SIZE
+	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;
+	}
+#else
+	BOOL rv;
+  rv = bitmap_decompressx(output, width, height, input, size, Bpp);
+#endif
+	return rv;
+}
+
+/* *INDENT-ON* */