* Merge ioq3-r1272

24 files changed, 3857 insertions, 3680 deletions

diff --git a/Makefile b/Makefile
index 1defb7d4..0c4dc243 100644
--- a/Makefile
+++ b/Makefile
@@ -790,6 +790,24 @@ $(Q)$(CC) $(CFLAGS) $(SHLIBCFLAGS) -o $@ -c $<
 $(Q)$(DO_QVM_DEP)
 endef
 
+define DO_GAME_CC
+$(echo_cmd) "GAME_CC $<"
+$(Q)$(CC) -DGAME $(CFLAGS) $(SHLIBCFLAGS) -o $@ -c $<
+$(Q)$(DO_QVM_DEP)
+endef
+
+define DO_CGAME_CC
+$(echo_cmd) "CGAME_CC $<"
+$(Q)$(CC) -DCGAME $(CFLAGS) $(SHLIBCFLAGS) -o $@ -c $<
+$(Q)$(DO_QVM_DEP)
+endef
+
+define DO_UI_CC
+$(echo_cmd) "UI_CC $<"
+$(Q)$(CC) -DUI $(CFLAGS) $(SHLIBCFLAGS) -o $@ -c $<
+$(Q)$(DO_QVM_DEP)
+endef
+
 define DO_AS
 $(echo_cmd) "AS $<"
 $(Q)$(CC) $(CFLAGS) -x assembler-with-cpp -o $@ -c $<
@@ -1000,6 +1018,21 @@ $(echo_cmd) "Q3LCC $<"
 $(Q)$(Q3LCC) -o $@ $<
 endef
 
+define DO_CGAME_Q3LCC
+$(echo_cmd) "CGAME_Q3LCC $<"
+$(Q)$(Q3LCC) -DCGAME -o $@ $<
+endef
+
+define DO_GAME_Q3LCC
+$(echo_cmd) "GAME_Q3LCC $<"
+$(Q)$(Q3LCC) -DGAME -o $@ $<
+endef
+
+define DO_UI_Q3LCC
+$(echo_cmd) "UI_Q3LCC $<"
+$(Q)$(Q3LCC) -DUI -o $@ $<
+endef
+
 
 Q3ASMOBJ = \
   $(B)/tools/asm/q3asm.o \
@@ -1082,6 +1115,7 @@ Q3OBJ = \
   $(B)/client/vm_interpreted.o \
   \
   $(B)/client/jcapimin.o \
+  $(B)/client/jcapistd.o \
   $(B)/client/jchuff.o   \
   $(B)/client/jcinit.o \
   $(B)/client/jccoefct.o  \
@@ -1124,6 +1158,11 @@ Q3OBJ = \
   $(B)/client/tr_flares.o \
   $(B)/client/tr_font.o \
   $(B)/client/tr_image.o \
+  $(B)/client/tr_image_png.o \
+  $(B)/client/tr_image_jpg.o \
+  $(B)/client/tr_image_bmp.o \
+  $(B)/client/tr_image_tga.o \
+  $(B)/client/tr_image_pcx.o \
   $(B)/client/tr_init.o \
   $(B)/client/tr_light.o \
   $(B)/client/tr_main.o \
@@ -1289,10 +1328,10 @@ $(B)/tremded.$(ARCH)$(BINEXT): $(Q3DOBJ)
 
 CGOBJ_ = \
   $(B)/base/cgame/cg_main.o \
-  $(B)/base/game/bg_misc.o \
-  $(B)/base/game/bg_pmove.o \
-  $(B)/base/game/bg_slidemove.o \
-  $(B)/base/game/bg_lib.o \
+  $(B)/base/cgame/bg_misc.o \
+  $(B)/base/cgame/bg_pmove.o \
+  $(B)/base/cgame/bg_slidemove.o \
+  $(B)/base/cgame/bg_lib.o \
   $(B)/base/cgame/cg_consolecmds.o \
   $(B)/base/cgame/cg_buildable.o \
   $(B)/base/cgame/cg_animation.o \
@@ -1392,8 +1431,8 @@ UIOBJ_ = \
   $(B)/base/ui/ui_shared.o \
   $(B)/base/ui/ui_gameinfo.o \
   \
-  $(B)/base/game/bg_misc.o \
-  $(B)/base/game/bg_lib.o \
+  $(B)/base/ui/bg_misc.o \
+  $(B)/base/ui/bg_lib.o \
   $(B)/base/qcommon/q_math.o \
   $(B)/base/qcommon/q_shared.o
 
@@ -1481,25 +1520,37 @@ endif
 ## GAME MODULE RULES
 #############################################################################
 
+$(B)/base/cgame/bg_%.o: $(GDIR)/bg_%.c
+	$(DO_CGAME_CC)
+
 $(B)/base/cgame/%.o: $(CGDIR)/%.c
-	$(DO_SHLIB_CC)
+	$(DO_CGAME_CC)
+
+$(B)/base/cgame/bg_%.asm: $(GDIR)/bg_%.c $(Q3LCC)
+	$(DO_CGAME_Q3LCC)
 
 $(B)/base/cgame/%.asm: $(CGDIR)/%.c $(Q3LCC)
-	$(DO_Q3LCC)
+	$(DO_CGAME_Q3LCC)
 
 
 $(B)/base/game/%.o: $(GDIR)/%.c
-	$(DO_SHLIB_CC)
+	$(DO_GAME_CC)
 
 $(B)/base/game/%.asm: $(GDIR)/%.c $(Q3LCC)
-	$(DO_Q3LCC)
+	$(DO_GAME_Q3LCC)
+
 
+$(B)/base/ui/bg_%.o: $(GDIR)/bg_%.c
+	$(DO_UI_CC)
 
 $(B)/base/ui/%.o: $(UIDIR)/%.c
-	$(DO_SHLIB_CC)
+	$(DO_UI_CC)
+
+$(B)/base/ui/bg_%.asm: $(GDIR)/bg_%.c $(Q3LCC)
+	$(DO_UI_Q3LCC)
 
 $(B)/base/ui/%.asm: $(UIDIR)/%.c $(Q3LCC)
-	$(DO_Q3LCC)
+	$(DO_UI_Q3LCC)
 
 
 $(B)/base/qcommon/%.o: $(CMDIR)/%.c
diff --git a/src/client/cl_cgame.c b/src/client/cl_cgame.c
index a3efd77a..0a40e6dd 100644
--- a/src/client/cl_cgame.c
+++ b/src/client/cl_cgame.c
@@ -294,9 +294,9 @@ rescan:
 		// https://zerowing.idsoftware.com/bugzilla/show_bug.cgi?id=552
 		// allow server to indicate why they were disconnected
 		if ( argc >= 2 )
-			Com_Error (ERR_SERVERDISCONNECT, va( "Server Disconnected - %s", Cmd_Argv( 1 ) ) );
+			Com_Error( ERR_SERVERDISCONNECT, "Server disconnected - %s", Cmd_Argv( 1 ) );
 		else
-			Com_Error (ERR_SERVERDISCONNECT,"Server disconnected\n");
+			Com_Error( ERR_SERVERDISCONNECT, "Server disconnected\n" );
 	}
 
 	if ( !strcmp( cmd, "bcs0" ) ) {
diff --git a/src/client/cl_curl.c b/src/client/cl_curl.c
index 96bd7abc..5e55d0cf 100644
--- a/src/client/cl_curl.c
+++ b/src/client/cl_curl.c
@@ -100,13 +100,22 @@ qboolean CL_cURL_Init()
 		return qfalse;
 #else
 		char fn[1024];
+
 		Q_strncpyz( fn, Sys_Cwd( ), sizeof( fn ) );
 		strncat(fn, "/", sizeof(fn)-strlen(fn)-1);
 		strncat(fn, cl_cURLLib->string, sizeof(fn)-strlen(fn)-1);
 
-		if( (cURLLib = Sys_LoadLibrary(fn)) == 0 )
+		if((cURLLib = Sys_LoadLibrary(fn)) == 0)
 		{
+#ifdef ALTERNATE_CURL_LIB
+			// On some linux distributions there is no libcurl.so.3, but only libcurl.so.4. That one works too.
+			if( (cURLLib = Sys_LoadLibrary(ALTERNATE_CURL_LIB)) == 0 )
+			{
+				return qfalse;
+			}
+#else
 			return qfalse;
+#endif
 		}
 #endif /* _WIN32 */
 	}
diff --git a/src/client/cl_curl.h b/src/client/cl_curl.h
index 08aec802..8a779c9d 100644
--- a/src/client/cl_curl.h
+++ b/src/client/cl_curl.h
@@ -34,7 +34,8 @@ extern cvar_t *cl_cURLLib;
 #elif defined(MACOS_X)
 #define DEFAULT_CURL_LIB "libcurl.dylib"
 #else
-#define DEFAULT_CURL_LIB "libcurl.so.3"
+#define DEFAULT_CURL_LIB "libcurl.so.4"
+#define ALTERNATE_CURL_LIB "libcurl.so.3"
 #endif
 
 #ifdef USE_LOCAL_HEADERS
diff --git a/src/client/cl_main.c b/src/client/cl_main.c
index 14cb84b7..ae1044e2 100644
--- a/src/client/cl_main.c
+++ b/src/client/cl_main.c
@@ -453,7 +453,7 @@ void CL_DemoCompleted( void )
 					time / (float)clc.timeDemoFrames,
 					clc.timeDemoMaxDuration,
 					CL_DemoFrameDurationSDev( ) );
-			Com_Printf( buffer );
+			Com_Printf( "%s", buffer );
 
 			// Write a log of all the frame durations
 			if( cl_timedemoLog && strlen( cl_timedemoLog->string ) > 0 )
@@ -3236,7 +3236,7 @@ void CL_GlobalServers_f( void ) {
 	for (i=3; i<count; i++)
 		buffptr += sprintf( buffptr, " %s", Cmd_Argv(i) );
 
-	NET_OutOfBandPrint( NS_SERVER, to, command );
+	NET_OutOfBandPrint( NS_SERVER, to, "%s", command );
 }
 
 
diff --git a/src/client/cl_parse.c b/src/client/cl_parse.c
index 63b1b6e5..ef57ee3f 100644
--- a/src/client/cl_parse.c
+++ b/src/client/cl_parse.c
@@ -555,7 +555,7 @@ void CL_ParseDownload ( msg_t *msg ) {
 
 		if (clc.downloadSize < 0)
 		{
-			Com_Error(ERR_DROP, MSG_ReadString( msg ) );
+			Com_Error( ERR_DROP, "%s", MSG_ReadString( msg ) );
 			return;
 		}
 	}
diff --git a/src/client/snd_codec.c b/src/client/snd_codec.c
index 1b680f87..65f17f4d 100644
--- a/src/client/snd_codec.c
+++ b/src/client/snd_codec.c
@@ -42,7 +42,10 @@ static char *S_FileExtension(const char *fni)
 	while(*fn != '/' && fn != fni)
 	{
 		if(*fn == '.')
+		{
 			eptr = fn;
+			break;
+		}
 		fn--;
 	}
 
diff --git a/src/client/snd_codec_ogg.c b/src/client/snd_codec_ogg.c
index 3b322b97..8730a9ed 100644
--- a/src/client/snd_codec_ogg.c
+++ b/src/client/snd_codec_ogg.c
@@ -128,7 +128,7 @@ int S_OGG_Callback_seek(void *datasource, ogg_int64_t offset, int whence)
 			retVal = FS_Seek(stream->file, (long) offset, FS_SEEK_SET);
 
 			// something has gone wrong, so we return here
-			if(!(retVal == 0))
+			if(retVal < 0)
 			{
 			 return retVal;
 			}
@@ -144,7 +144,7 @@ int S_OGG_Callback_seek(void *datasource, ogg_int64_t offset, int whence)
 			retVal = FS_Seek(stream->file, (long) offset, FS_SEEK_CUR);
 
 			// something has gone wrong, so we return here
-			if(!(retVal == 0))
+			if(retVal < 0)
 			{
 			 return retVal;
 			}
@@ -163,7 +163,7 @@ int S_OGG_Callback_seek(void *datasource, ogg_int64_t offset, int whence)
 			retVal = FS_Seek(stream->file, (long) stream->length + (long) offset, FS_SEEK_SET);
 
 			// something has gone wrong, so we return here
-			if(!(retVal == 0))
+			if(retVal < 0)
 			{
 			 return retVal;
 			}
@@ -198,15 +198,19 @@ int S_OGG_Callback_close(void *datasource)
 // ftell() replacement
 long S_OGG_Callback_tell(void *datasource)
 {
+	snd_stream_t   *stream;
+
 	// check if input is valid
 	if(!datasource)
 	{
-		errno = EBADF; 
+		errno = EBADF;
 		return -1;
 	}
 
-	// we keep track of the file position in stream->pos
-	return (long) (((snd_stream_t *) datasource) -> pos);
+	// snd_stream_t in the generic pointer
+	stream = (snd_stream_t *) datasource;
+
+	return (long) FS_FTell(stream->file);
 }
 
 // the callback structure
diff --git a/src/client/snd_dma.c b/src/client/snd_dma.c
index ec92da69..93d9a316 100644
--- a/src/client/snd_dma.c
+++ b/src/client/snd_dma.c
@@ -494,8 +494,8 @@ void S_Base_StartSound(vec3_t origin, int entityNum, int entchannel, sfxHandle_t
 	ch = s_channels;
 	inplay = 0;
 	for ( i = 0; i < MAX_CHANNELS ; i++, ch++ ) {		
-		if (ch[i].entnum == entityNum && ch[i].thesfx == sfx) {
-			if (time - ch[i].allocTime < 50) {
+		if (ch->entnum == entityNum && ch->thesfx == sfx) {
+			if (time - ch->allocTime < 50) {
 //				if (Cvar_VariableValue( "cg_showmiss" )) {
 //					Com_Printf("double sound start\n");
 //				}
@@ -532,6 +532,7 @@ void S_Base_StartSound(vec3_t origin, int entityNum, int entchannel, sfxHandle_t
 				}
 			}
 			if (chosen == -1) {
+				ch = s_channels;
 				if (ch->entnum == listener_number) {
 					for ( i = 0 ; i < MAX_CHANNELS ; i++, ch++ ) {
 						if (ch->allocTime<oldest) {
diff --git a/src/game/bg_misc.c b/src/game/bg_misc.c
index 64924aaa..5b06eb5f 100644
--- a/src/game/bg_misc.c
+++ b/src/game/bg_misc.c
@@ -4888,7 +4888,7 @@ void BG_AddPredictableEventToPlayerstate( int newEvent, int eventParm, playerSta
 
     if( atof( buf ) != 0 )
     {
-#ifdef QAGAME
+#ifdef GAME
       Com_Printf( " game event svt %5d -> %5d: num = %20s parm %d\n",
                   ps->pmove_framecount/*ps->commandTime*/, ps->eventSequence, eventnames[ newEvent ], eventParm);
 #else
diff --git a/src/jpeg-6/jdatasrc.c b/src/jpeg-6/jdatasrc.c
index 0bf78660..b19d8854 100644
--- a/src/jpeg-6/jdatasrc.c
+++ b/src/jpeg-6/jdatasrc.c
@@ -20,13 +20,18 @@
 #include "jpeglib.h"
 #include "jerror.h"
 
+#ifndef MIN
+#define MIN(a, b) ((a)<(b)?(a):(b))
+#endif
+
 
 /* Expanded data source object for stdio input */
 
 typedef struct {
   struct jpeg_source_mgr pub;	/* public fields */
 
-  unsigned char *infile;		/* source stream */
+  unsigned char *inbuf;		/* source stream */
+  size_t inbufbytes;
   JOCTET * buffer;		/* start of buffer */
   boolean start_of_file;	/* have we gotten any data yet? */
 } my_source_mgr;
@@ -91,13 +96,26 @@ METHODDEF boolean
 fill_input_buffer (j_decompress_ptr cinfo)
 {
   my_src_ptr src = (my_src_ptr) cinfo->src;
+  size_t nbytes = MIN(src->inbufbytes, INPUT_BUF_SIZE);
+
+  if(!nbytes)
+  {
+    WARNMS(cinfo, JWRN_JPEG_EOF);
+    /* Insert a fake EOI marker */
+    src->buffer[0] = (JOCTET) 0xFF;
+    src->buffer[1] = (JOCTET) JPEG_EOI;
+    nbytes = 2;
+  }
+  else
+  {
+    memcpy( src->buffer, src->inbuf, nbytes);
 
-  memcpy( src->buffer, src->infile, INPUT_BUF_SIZE );
-
-  src->infile += INPUT_BUF_SIZE;
+    src->inbuf += nbytes;
+    src->inbufbytes -= nbytes;
+  }
 
   src->pub.next_input_byte = src->buffer;
-  src->pub.bytes_in_buffer = INPUT_BUF_SIZE;
+  src->pub.bytes_in_buffer = nbytes;
   src->start_of_file = FALSE;
 
   return TRUE;
@@ -171,7 +189,7 @@ term_source (j_decompress_ptr cinfo)
  */
 
 GLOBAL void
-jpeg_stdio_src (j_decompress_ptr cinfo, unsigned char *infile)
+jpeg_mem_src (j_decompress_ptr cinfo, unsigned char *inbuf, size_t size)
 {
   my_src_ptr src;
 
@@ -198,7 +216,8 @@ jpeg_stdio_src (j_decompress_ptr cinfo, unsigned char *infile)
   src->pub.skip_input_data = skip_input_data;
   src->pub.resync_to_restart = jpeg_resync_to_restart; /* use default method */
   src->pub.term_source = term_source;
-  src->infile = infile;
+  src->inbuf = inbuf;
+  src->inbufbytes = size;
   src->pub.bytes_in_buffer = 0; /* forces fill_input_buffer on first read */
   src->pub.next_input_byte = NULL; /* until buffer loaded */
 }
diff --git a/src/jpeg-6/jpeglib.h b/src/jpeg-6/jpeglib.h
index edfdda10..a0e9e27a 100644
--- a/src/jpeg-6/jpeglib.h
+++ b/src/jpeg-6/jpeglib.h
@@ -874,7 +874,7 @@ EXTERN void jpeg_destroy_decompress JPP((j_decompress_ptr cinfo));
 /* Standard data source and destination managers: stdio streams. */
 /* Caller is responsible for opening the file before and closing after. */
 EXTERN void jpeg_stdio_dest JPP((j_compress_ptr cinfo, FILE * outfile));
-EXTERN void jpeg_stdio_src JPP((j_decompress_ptr cinfo, unsigned char *infile));
+EXTERN void jpeg_mem_src JPP((j_decompress_ptr cinfo, unsigned char *buffer, size_t size));
 
 /* Default parameter setup for compression */
 EXTERN void jpeg_set_defaults JPP((j_compress_ptr cinfo));
diff --git a/src/qcommon/common.c b/src/qcommon/common.c
index 3d3cd38d..c074aa74 100644
--- a/src/qcommon/common.c
+++ b/src/qcommon/common.c
@@ -2418,7 +2418,7 @@ void Com_Init( char *commandLine ) {
 
 	// skip the autogen.cfg if "safe" is on the command line
 	if ( !Com_SafeMode() ) {
-		Cbuf_AddText ("exec autogen.cfg\n");
+		Cbuf_AddText ("exec " Q3CONFIG_CFG "\n");
 	}
 
 	Cbuf_AddText ("exec autoexec.cfg\n");
@@ -2562,7 +2562,7 @@ void Com_WriteConfiguration( void ) {
 	}
 	cvar_modifiedFlags &= ~CVAR_ARCHIVE;
 
-	Com_WriteConfigToFile( "autogen.cfg" );
+	Com_WriteConfigToFile( Q3CONFIG_CFG );
 }
 
 
diff --git a/src/qcommon/files.c b/src/qcommon/files.c
index f896929f..0228a4be 100644
--- a/src/qcommon/files.c
+++ b/src/qcommon/files.c
@@ -3200,7 +3200,7 @@ void FS_Restart( int checksumFeed ) {
 	if ( Q_stricmp(fs_gamedirvar->string, lastValidGame) ) {
 		// skip the autogen.cfg if "safe" is on the command line
 		if ( !Com_SafeMode() ) {
-			Cbuf_AddText ("exec autogen.cfg\n");
+			Cbuf_AddText ("exec " Q3CONFIG_CFG "\n");
 		}
 	}
 
diff --git a/src/qcommon/qcommon.h b/src/qcommon/qcommon.h
index e6612453..58ec8745 100644
--- a/src/qcommon/qcommon.h
+++ b/src/qcommon/qcommon.h
@@ -530,6 +530,12 @@ issues.
 
 #define BASEGAME "base"
 
+#ifdef DEDICATED
+#	define Q3CONFIG_CFG "autogen_server.cfg"
+#else
+#	define Q3CONFIG_CFG "autogen.cfg"
+#endif
+
 qboolean FS_Initialized( void );
 
 void	FS_InitFilesystem ( void );
diff --git a/src/qcommon/qfiles.h b/src/qcommon/qfiles.h
index 7e901b79..f0092878 100644
--- a/src/qcommon/qfiles.h
+++ b/src/qcommon/qfiles.h
@@ -70,50 +70,6 @@ typedef struct {
 	int		jtrgLength;			// number of jump table targets
 } vmHeader_t;
 
-
-/*
-========================================================================
-
-PCX files are used for 8 bit images
-
-========================================================================
-*/
-
-typedef struct {
-    char	manufacturer;
-    char	version;
-    char	encoding;
-    char	bits_per_pixel;
-    unsigned short	xmin,ymin,xmax,ymax;
-    unsigned short	hres,vres;
-    unsigned char	palette[48];
-    char	reserved;
-    char	color_planes;
-    unsigned short	bytes_per_line;
-    unsigned short	palette_type;
-    char	filler[58];
-    unsigned char	data;			// unbounded
-} pcx_t;
-
-
-/*
-========================================================================
-
-TGA files are used for 24/32 bit images
-
-========================================================================
-*/
-
-typedef struct _TargaHeader {
-	unsigned char 	id_length, colormap_type, image_type;
-	unsigned short	colormap_index, colormap_length;
-	unsigned char	colormap_size;
-	unsigned short	x_origin, y_origin, width, height;
-	unsigned char	pixel_size, attributes;
-} TargaHeader;
-
-
-
 /*
 ========================================================================
 
diff --git a/src/renderer/tr_image.c b/src/renderer/tr_image.c
index e4b81542..9a0b01fc 100644
--- a/src/renderer/tr_image.c
+++ b/src/renderer/tr_image.c
@@ -23,25 +23,6 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 // tr_image.c
 #include "tr_local.h"
 
-/*
- * Include file for users of JPEG library.
- * You will need to have included system headers that define at least
- * the typedefs FILE and size_t before you can include jpeglib.h.
- * (stdio.h is sufficient on ANSI-conforming systems.)
- * You may also wish to include "jerror.h".
- */
-
-#define JPEG_INTERNALS
-#include "../jpeg-6/jpeglib.h"
-
-#include "../qcommon/puff.h"
-
-
-static void LoadBMP( const char *name, byte **pic, int *width, int *height );
-static void LoadTGA( const char *name, byte **pic, int *width, int *height );
-static void LoadJPG( const char *name, byte **pic, int *width, int *height );
-static void LoadPNG( const char *name, byte **pic, int *width, int *height );
-
 static byte			 s_intensitytable[256];
 static unsigned char s_gammatable[256];
 
@@ -802,3578 +783,6 @@ image_t *R_CreateImage( const char *name, const byte *pic, int width, int height
 	return image;
 }
 
-
-/*
-=========================================================
-
-BMP LOADING
-
-=========================================================
-*/
-typedef struct
-{
-	char id[2];
-	unsigned long fileSize;
-	unsigned long reserved0;
-	unsigned long bitmapDataOffset;
-	unsigned long bitmapHeaderSize;
-	unsigned long width;
-	unsigned long height;
-	unsigned short planes;
-	unsigned short bitsPerPixel;
-	unsigned long compression;
-	unsigned long bitmapDataSize;
-	unsigned long hRes;
-	unsigned long vRes;
-	unsigned long colors;
-	unsigned long importantColors;
-	unsigned char palette[256][4];
-} BMPHeader_t;
-
-static void LoadBMP( const char *name, byte **pic, int *width, int *height )
-{
-	int		columns, rows;
-	unsigned	numPixels;
-	byte	*pixbuf;
-	int		row, column;
-	byte	*buf_p;
-	byte	*buffer;
-	int		length;
-	BMPHeader_t bmpHeader;
-	byte		*bmpRGBA;
-
-	*pic = NULL;
-
-	//
-	// load the file
-	//
-	length = ri.FS_ReadFile( ( char * ) name, (void **)&buffer);
-	if (!buffer) {
-		return;
-	}
-
-	buf_p = buffer;
-
-	bmpHeader.id[0] = *buf_p++;
-	bmpHeader.id[1] = *buf_p++;
-	bmpHeader.fileSize = LittleLong( * ( long * ) buf_p );
-	buf_p += 4;
-	bmpHeader.reserved0 = LittleLong( * ( long * ) buf_p );
-	buf_p += 4;
-	bmpHeader.bitmapDataOffset = LittleLong( * ( long * ) buf_p );
-	buf_p += 4;
-	bmpHeader.bitmapHeaderSize = LittleLong( * ( long * ) buf_p );
-	buf_p += 4;
-	bmpHeader.width = LittleLong( * ( long * ) buf_p );
-	buf_p += 4;
-	bmpHeader.height = LittleLong( * ( long * ) buf_p );
-	buf_p += 4;
-	bmpHeader.planes = LittleShort( * ( short * ) buf_p );
-	buf_p += 2;
-	bmpHeader.bitsPerPixel = LittleShort( * ( short * ) buf_p );
-	buf_p += 2;
-	bmpHeader.compression = LittleLong( * ( long * ) buf_p );
-	buf_p += 4;
-	bmpHeader.bitmapDataSize = LittleLong( * ( long * ) buf_p );
-	buf_p += 4;
-	bmpHeader.hRes = LittleLong( * ( long * ) buf_p );
-	buf_p += 4;
-	bmpHeader.vRes = LittleLong( * ( long * ) buf_p );
-	buf_p += 4;
-	bmpHeader.colors = LittleLong( * ( long * ) buf_p );
-	buf_p += 4;
-	bmpHeader.importantColors = LittleLong( * ( long * ) buf_p );
-	buf_p += 4;
-
-	Com_Memcpy( bmpHeader.palette, buf_p, sizeof( bmpHeader.palette ) );
-
-	if ( bmpHeader.bitsPerPixel == 8 )
-		buf_p += 1024;
-
-	if ( bmpHeader.id[0] != 'B' && bmpHeader.id[1] != 'M' ) 
-	{
-		ri.Error( ERR_DROP, "LoadBMP: only Windows-style BMP files supported (%s)\n", name );
-	}
-	if ( bmpHeader.fileSize != length )
-	{
-		ri.Error( ERR_DROP, "LoadBMP: header size does not match file size (%d vs. %d) (%s)\n", bmpHeader.fileSize, length, name );
-	}
-	if ( bmpHeader.compression != 0 )
-	{
-		ri.Error( ERR_DROP, "LoadBMP: only uncompressed BMP files supported (%s)\n", name );
-	}
-	if ( bmpHeader.bitsPerPixel < 8 )
-	{
-		ri.Error( ERR_DROP, "LoadBMP: monochrome and 4-bit BMP files not supported (%s)\n", name );
-	}
-
-	columns = bmpHeader.width;
-	rows = bmpHeader.height;
-	if ( rows < 0 )
-		rows = -rows;
-	numPixels = columns * rows;
-
-	if(columns <= 0 || !rows || numPixels > 0x1FFFFFFF // 4*1FFFFFFF == 0x7FFFFFFC < 0x7FFFFFFF
-	    || ((numPixels * 4) / columns) / 4 != rows)
-	{
-	  ri.Error (ERR_DROP, "LoadBMP: %s has an invalid image size\n", name);
-	}
-
-	if ( width ) 
-		*width = columns;
-	if ( height )
-		*height = rows;
-
-	bmpRGBA = ri.Malloc( numPixels * 4 );
-	*pic = bmpRGBA;
-
-
-	for ( row = rows-1; row >= 0; row-- )
-	{
-		pixbuf = bmpRGBA + row*columns*4;
-
-		for ( column = 0; column < columns; column++ )
-		{
-			unsigned char red, green, blue, alpha;
-			int palIndex;
-			unsigned short shortPixel;
-
-			switch ( bmpHeader.bitsPerPixel )
-			{
-			case 8:
-				palIndex = *buf_p++;
-				*pixbuf++ = bmpHeader.palette[palIndex][2];
-				*pixbuf++ = bmpHeader.palette[palIndex][1];
-				*pixbuf++ = bmpHeader.palette[palIndex][0];
-				*pixbuf++ = 0xff;
-				break;
-			case 16:
-				shortPixel = * ( unsigned short * ) pixbuf;
-				pixbuf += 2;
-				*pixbuf++ = ( shortPixel & ( 31 << 10 ) ) >> 7;
-				*pixbuf++ = ( shortPixel & ( 31 << 5 ) ) >> 2;
-				*pixbuf++ = ( shortPixel & ( 31 ) ) << 3;
-				*pixbuf++ = 0xff;
-				break;
-
-			case 24:
-				blue = *buf_p++;
-				green = *buf_p++;
-				red = *buf_p++;
-				*pixbuf++ = red;
-				*pixbuf++ = green;
-				*pixbuf++ = blue;
-				*pixbuf++ = 255;
-				break;
-			case 32:
-				blue = *buf_p++;
-				green = *buf_p++;
-				red = *buf_p++;
-				alpha = *buf_p++;
-				*pixbuf++ = red;
-				*pixbuf++ = green;
-				*pixbuf++ = blue;
-				*pixbuf++ = alpha;
-				break;
-			default:
-				ri.Error( ERR_DROP, "LoadBMP: illegal pixel_size '%d' in file '%s'\n", bmpHeader.bitsPerPixel, name );
-				break;
-			}
-		}
-	}
-
-	ri.FS_FreeFile( buffer );
-
-}
-
-
-/*
-=================================================================
-
-PCX LOADING
-
-=================================================================
-*/
-
-
-/*
-==============
-LoadPCX
-==============
-*/
-static void LoadPCX ( const char *filename, byte **pic, byte **palette, int *width, int *height)
-{
-	byte	*raw;
-	pcx_t	*pcx;
-	int		x, y;
-	int		len;
-	int		dataByte, runLength;
-	byte	*out, *pix;
-	unsigned		xmax, ymax;
-
-	*pic = NULL;
-	*palette = NULL;
-
-	//
-	// load the file
-	//
-	len = ri.FS_ReadFile( ( char * ) filename, (void **)&raw);
-	if (!raw) {
-		return;
-	}
-
-	//
-	// parse the PCX file
-	//
-	pcx = (pcx_t *)raw;
-	raw = &pcx->data;
-
-  	xmax = LittleShort(pcx->xmax);
-    ymax = LittleShort(pcx->ymax);
-
-	if (pcx->manufacturer != 0x0a
-		|| pcx->version != 5
-		|| pcx->encoding != 1
-		|| pcx->bits_per_pixel != 8
-		|| xmax >= 1024
-		|| ymax >= 1024)
-	{
-		ri.Printf (PRINT_ALL, "Bad pcx file %s (%i x %i) (%i x %i)\n", filename, xmax+1, ymax+1, pcx->xmax, pcx->ymax);
-		return;
-	}
-
-	out = ri.Malloc ( (ymax+1) * (xmax+1) );
-
-	*pic = out;
-
-	pix = out;
-
-	if (palette)
-	{
-		*palette = ri.Malloc(768);
-		Com_Memcpy (*palette, (byte *)pcx + len - 768, 768);
-	}
-
-	if (width)
-		*width = xmax+1;
-	if (height)
-		*height = ymax+1;
-// FIXME: use bytes_per_line here?
-
-	for (y=0 ; y<=ymax ; y++, pix += xmax+1)
-	{
-		for (x=0 ; x<=xmax ; )
-		{
-			dataByte = *raw++;
-
-			if((dataByte & 0xC0) == 0xC0)
-			{
-				runLength = dataByte & 0x3F;
-				dataByte = *raw++;
-			}
-			else
-				runLength = 1;
-
-			while(runLength-- > 0)
-				pix[x++] = dataByte;
-		}
-
-	}
-
-	if ( raw - (byte *)pcx > len)
-	{
-		ri.Printf (PRINT_DEVELOPER, "PCX file %s was malformed", filename);
-		ri.Free (*pic);
-		*pic = NULL;
-	}
-
-	ri.FS_FreeFile (pcx);
-}
-
-
-/*
-==============
-LoadPCX32
-==============
-*/
-static void LoadPCX32 ( const char *filename, byte **pic, int *width, int *height) {
-	byte	*palette;
-	byte	*pic8;
-	int		i, c, p;
-	byte	*pic32;
-
-	LoadPCX (filename, &pic8, &palette, width, height);
-	if (!pic8) {
-		*pic = NULL;
-		return;
-	}
-
-	// LoadPCX32 ensures width, height < 1024
-	c = (*width) * (*height);
-	pic32 = *pic = ri.Malloc(4 * c );
-	for (i = 0 ; i < c ; i++) {
-		p = pic8[i];
-		pic32[0] = palette[p*3];
-		pic32[1] = palette[p*3 + 1];
-		pic32[2] = palette[p*3 + 2];
-		pic32[3] = 255;
-		pic32 += 4;
-	}
-
-	ri.Free (pic8);
-	ri.Free (palette);
-}
-
-/*
-=========================================================
-
-TARGA LOADING
-
-=========================================================
-*/
-
-/*
-=============
-LoadTGA
-=============
-*/
-static void LoadTGA ( const char *name, byte **pic, int *width, int *height)
-{
-	unsigned	columns, rows, numPixels;
-	byte	*pixbuf;
-	int		row, column;
-	byte	*buf_p;
-	byte	*buffer;
-	TargaHeader	targa_header;
-	byte		*targa_rgba;
-
-	*pic = NULL;
-
-	//
-	// load the file
-	//
-	ri.FS_ReadFile ( ( char * ) name, (void **)&buffer);
-	if (!buffer) {
-		return;
-	}
-
-	buf_p = buffer;
-
-	targa_header.id_length = buf_p[0];
-	targa_header.colormap_type = buf_p[1];
-	targa_header.image_type = buf_p[2];
-	
-	memcpy(&targa_header.colormap_index, &buf_p[3], 2);
-	memcpy(&targa_header.colormap_length, &buf_p[5], 2);
-	targa_header.colormap_size = buf_p[7];
-	memcpy(&targa_header.x_origin, &buf_p[8], 2);
-	memcpy(&targa_header.y_origin, &buf_p[10], 2);
-	memcpy(&targa_header.width, &buf_p[12], 2);
-	memcpy(&targa_header.height, &buf_p[14], 2);
-	targa_header.pixel_size = buf_p[16];
-	targa_header.attributes = buf_p[17];
-
-	targa_header.colormap_index = LittleShort(targa_header.colormap_index);
-	targa_header.colormap_length = LittleShort(targa_header.colormap_length);
-	targa_header.x_origin = LittleShort(targa_header.x_origin);
-	targa_header.y_origin = LittleShort(targa_header.y_origin);
-	targa_header.width = LittleShort(targa_header.width);
-	targa_header.height = LittleShort(targa_header.height);
-
-	buf_p += 18;
-
-	if (targa_header.image_type!=2 
-		&& targa_header.image_type!=10
-		&& targa_header.image_type != 3 ) 
-	{
-		ri.Error (ERR_DROP, "LoadTGA: Only type 2 (RGB), 3 (gray), and 10 (RGB) TGA images supported\n");
-	}
-
-	if ( targa_header.colormap_type != 0 )
-	{
-		ri.Error( ERR_DROP, "LoadTGA: colormaps not supported\n" );
-	}
-
-	if ( ( targa_header.pixel_size != 32 && targa_header.pixel_size != 24 ) && targa_header.image_type != 3 )
-	{
-		ri.Error (ERR_DROP, "LoadTGA: Only 32 or 24 bit images supported (no colormaps)\n");
-	}
-
-	columns = targa_header.width;
-	rows = targa_header.height;
-	numPixels = columns * rows * 4;
-
-	if (width)
-		*width = columns;
-	if (height)
-		*height = rows;
-
-	if(!columns || !rows || numPixels > 0x7FFFFFFF || numPixels / columns / 4 != rows)
-	{
-		ri.Error (ERR_DROP, "LoadTGA: %s has an invalid image size\n", name);
-	}
-
-	targa_rgba = ri.Malloc (numPixels);
-	*pic = targa_rgba;
-
-	if (targa_header.id_length != 0)
-		buf_p += targa_header.id_length;  // skip TARGA image comment
-	
-	if ( targa_header.image_type==2 || targa_header.image_type == 3 )
-	{ 
-		// Uncompressed RGB or gray scale image
-		for(row=rows-1; row>=0; row--) 
-		{
-			pixbuf = targa_rgba + row*columns*4;
-			for(column=0; column<columns; column++) 
-			{
-				unsigned char red,green,blue,alphabyte;
-				switch (targa_header.pixel_size) 
-				{
-					
-				case 8:
-					blue = *buf_p++;
-					green = blue;
-					red = blue;
-					*pixbuf++ = red;
-					*pixbuf++ = green;
-					*pixbuf++ = blue;
-					*pixbuf++ = 255;
-					break;
-
-				case 24:
-					blue = *buf_p++;
-					green = *buf_p++;
-					red = *buf_p++;
-					*pixbuf++ = red;
-					*pixbuf++ = green;
-					*pixbuf++ = blue;
-					*pixbuf++ = 255;
-					break;
-				case 32:
-					blue = *buf_p++;
-					green = *buf_p++;
-					red = *buf_p++;
-					alphabyte = *buf_p++;
-					*pixbuf++ = red;
-					*pixbuf++ = green;
-					*pixbuf++ = blue;
-					*pixbuf++ = alphabyte;
-					break;
-				default:
-					ri.Error( ERR_DROP, "LoadTGA: illegal pixel_size '%d' in file '%s'\n", targa_header.pixel_size, name );
-					break;
-				}
-			}
-		}
-	}
-	else if (targa_header.image_type==10) {   // Runlength encoded RGB images
-		unsigned char red,green,blue,alphabyte,packetHeader,packetSize,j;
-
-		red = 0;
-		green = 0;
-		blue = 0;
-		alphabyte = 0xff;
-
-		for(row=rows-1; row>=0; row--) {
-			pixbuf = targa_rgba + row*columns*4;
-			for(column=0; column<columns; ) {
-				packetHeader= *buf_p++;
-				packetSize = 1 + (packetHeader & 0x7f);
-				if (packetHeader & 0x80) {        // run-length packet
-					switch (targa_header.pixel_size) {
-						case 24:
-								blue = *buf_p++;
-								green = *buf_p++;
-								red = *buf_p++;
-								alphabyte = 255;
-								break;
-						case 32:
-								blue = *buf_p++;
-								green = *buf_p++;
-								red = *buf_p++;
-								alphabyte = *buf_p++;
-								break;
-						default:
-							ri.Error( ERR_DROP, "LoadTGA: illegal pixel_size '%d' in file '%s'\n", targa_header.pixel_size, name );
-							break;
-					}
-	
-					for(j=0;j<packetSize;j++) {
-						*pixbuf++=red;
-						*pixbuf++=green;
-						*pixbuf++=blue;
-						*pixbuf++=alphabyte;
-						column++;
-						if (column==columns) { // run spans across rows
-							column=0;
-							if (row>0)
-								row--;
-							else
-								goto breakOut;
-							pixbuf = targa_rgba + row*columns*4;
-						}
-					}
-				}
-				else {                            // non run-length packet
-					for(j=0;j<packetSize;j++) {
-						switch (targa_header.pixel_size) {
-							case 24:
-									blue = *buf_p++;
-									green = *buf_p++;
-									red = *buf_p++;
-									*pixbuf++ = red;
-									*pixbuf++ = green;
-									*pixbuf++ = blue;
-									*pixbuf++ = 255;
-									break;
-							case 32:
-									blue = *buf_p++;
-									green = *buf_p++;
-									red = *buf_p++;
-									alphabyte = *buf_p++;
-									*pixbuf++ = red;
-									*pixbuf++ = green;
-									*pixbuf++ = blue;
-									*pixbuf++ = alphabyte;
-									break;
-							default:
-								ri.Error( ERR_DROP, "LoadTGA: illegal pixel_size '%d' in file '%s'\n", targa_header.pixel_size, name );
-								break;
-						}
-						column++;
-						if (column==columns) { // pixel packet run spans across rows
-							column=0;
-							if (row>0)
-								row--;
-							else
-								goto breakOut;
-							pixbuf = targa_rgba + row*columns*4;
-						}						
-					}
-				}
-			}
-			breakOut:;
-		}
-	}
-
-#if 0 
-  // TTimo: this is the chunk of code to ensure a behavior that meets TGA specs 
-  // bit 5 set => top-down
-  if (targa_header.attributes & 0x20) {
-    unsigned char *flip = (unsigned char*)malloc (columns*4);
-    unsigned char *src, *dst;
-
-    for (row = 0; row < rows/2; row++) {
-      src = targa_rgba + row * 4 * columns;
-      dst = targa_rgba + (rows - row - 1) * 4 * columns;
-
-      memcpy (flip, src, columns*4);
-      memcpy (src, dst, columns*4);
-      memcpy (dst, flip, columns*4);
-    }
-    free (flip);
-  }
-#endif
-  // instead we just print a warning
-  if (targa_header.attributes & 0x20) {
-    ri.Printf( PRINT_WARNING, "WARNING: '%s' TGA file header declares top-down image, ignoring\n", name);
-  }
-
-  ri.FS_FreeFile (buffer);
-}
-
-static void LoadJPG( const char *filename, unsigned char **pic, int *width, int *height ) {
-  /* This struct contains the JPEG decompression parameters and pointers to
-   * working space (which is allocated as needed by the JPEG library).
-   */
-  struct jpeg_decompress_struct cinfo = {NULL};
-  /* We use our private extension JPEG error handler.
-   * Note that this struct must live as long as the main JPEG parameter
-   * struct, to avoid dangling-pointer problems.
-   */
-  /* This struct represents a JPEG error handler.  It is declared separately
-   * because applications often want to supply a specialized error handler
-   * (see the second half of this file for an example).  But here we just
-   * take the easy way out and use the standard error handler, which will
-   * print a message on stderr and call exit() if compression fails.
-   * Note that this struct must live as long as the main JPEG parameter
-   * struct, to avoid dangling-pointer problems.
-   */
-  struct jpeg_error_mgr jerr;
-  /* More stuff */
-  JSAMPARRAY buffer;		/* Output row buffer */
-  unsigned row_stride;		/* physical row width in output buffer */
-  unsigned pixelcount, memcount;
-  unsigned char *out;
-  byte	*fbuffer;
-  byte  *buf;
-
-  /* In this example we want to open the input file before doing anything else,
-   * so that the setjmp() error recovery below can assume the file is open.
-   * VERY IMPORTANT: use "b" option to fopen() if you are on a machine that
-   * requires it in order to read binary files.
-   */
-
-  ri.FS_ReadFile ( ( char * ) filename, (void **)&fbuffer);
-  if (!fbuffer) {
-	return;
-  }
-
-  /* Step 1: allocate and initialize JPEG decompression object */
-
-  /* We have to set up the error handler first, in case the initialization
-   * step fails.  (Unlikely, but it could happen if you are out of memory.)
-   * This routine fills in the contents of struct jerr, and returns jerr's
-   * address which we place into the link field in cinfo.
-   */
-  cinfo.err = jpeg_std_error(&jerr);
-
-  /* Now we can initialize the JPEG decompression object. */
-  jpeg_create_decompress(&cinfo);
-
-  /* Step 2: specify data source (eg, a file) */
-
-  jpeg_stdio_src(&cinfo, fbuffer);
-
-  /* Step 3: read file parameters with jpeg_read_header() */
-
-  (void) jpeg_read_header(&cinfo, TRUE);
-  /* We can ignore the return value from jpeg_read_header since
-   *   (a) suspension is not possible with the stdio data source, and
-   *   (b) we passed TRUE to reject a tables-only JPEG file as an error.
-   * See libjpeg.doc for more info.
-   */
-
-  /* Step 4: set parameters for decompression */
-
-  /* In this example, we don't need to change any of the defaults set by
-   * jpeg_read_header(), so we do nothing here.
-   */
-
-  /* Step 5: Start decompressor */
-
-  (void) jpeg_start_decompress(&cinfo);
-  /* We can ignore the return value since suspension is not possible
-   * with the stdio data source.
-   */
-
-  /* We may need to do some setup of our own at this point before reading
-   * the data.  After jpeg_start_decompress() we have the correct scaled
-   * output image dimensions available, as well as the output colormap
-   * if we asked for color quantization.
-   * In this example, we need to make an output work buffer of the right size.
-   */ 
-  /* JSAMPLEs per row in output buffer */
-
-  pixelcount = cinfo.output_width * cinfo.output_height;
-
-  if(!cinfo.output_width || !cinfo.output_height
-      || ((pixelcount * 4) / cinfo.output_width) / 4 != cinfo.output_height
-      || pixelcount > 0x1FFFFFFF || cinfo.output_components > 4) // 4*1FFFFFFF == 0x7FFFFFFC < 0x7FFFFFFF
-  {
-    ri.Error (ERR_DROP, "LoadJPG: %s has an invalid image size: %dx%d*4=%d, components: %d\n", filename,
-		    cinfo.output_width, cinfo.output_height, pixelcount * 4, cinfo.output_components);
-  }
-
-  memcount = pixelcount * 4;
-  row_stride = cinfo.output_width * cinfo.output_components;
-
-  out = ri.Malloc(memcount);
-
-  *width = cinfo.output_width;
-  *height = cinfo.output_height;
-
-  /* Step 6: while (scan lines remain to be read) */
-  /*           jpeg_read_scanlines(...); */
-
-  /* Here we use the library's state variable cinfo.output_scanline as the
-   * loop counter, so that we don't have to keep track ourselves.
-   */
-  while (cinfo.output_scanline < cinfo.output_height) {
-    /* jpeg_read_scanlines expects an array of pointers to scanlines.
-     * Here the array is only one element long, but you could ask for
-     * more than one scanline at a time if that's more convenient.
-     */
-	buf = ((out+(row_stride*cinfo.output_scanline)));
-	buffer = &buf;
-    (void) jpeg_read_scanlines(&cinfo, buffer, 1);
-  }
-  
-  buf = out;
-
-  // If we are processing an 8-bit JPEG (greyscale), we'll have to convert
-  // the greyscale values to RGBA.
-  if(cinfo.output_components == 1)
-  {
-  	int sindex = pixelcount, dindex = memcount;
-	unsigned char greyshade;
-
-	// Only pixelcount number of bytes have been written.
-	// Expand the color values over the rest of the buffer, starting
-	// from the end.
-	do
-	{
-		greyshade = buf[--sindex];
-
-		buf[--dindex] = 255;
-		buf[--dindex] = greyshade;
-		buf[--dindex] = greyshade;
-		buf[--dindex] = greyshade;
-	} while(sindex);
-  }
-  else
-  {
-	// clear all the alphas to 255
-	int	i;
-
-	for ( i = 3 ; i < memcount ; i+=4 )
-	{
-		buf[i] = 255;
-	}
-  }
-
-  *pic = out;
-
-  /* Step 7: Finish decompression */
-
-  (void) jpeg_finish_decompress(&cinfo);
-  /* We can ignore the return value since suspension is not possible
-   * with the stdio data source.
-   */
-
-  /* Step 8: Release JPEG decompression object */
-
-  /* This is an important step since it will release a good deal of memory. */
-  jpeg_destroy_decompress(&cinfo);
-
-  /* After finish_decompress, we can close the input file.
-   * Here we postpone it until after no more JPEG errors are possible,
-   * so as to simplify the setjmp error logic above.  (Actually, I don't
-   * think that jpeg_destroy can do an error exit, but why assume anything...)
-   */
-  ri.FS_FreeFile (fbuffer);
-
-  /* At this point you may want to check to see whether any corrupt-data
-   * warnings occurred (test whether jerr.pub.num_warnings is nonzero).
-   */
-
-  /* And we're done! */
-}
-
-
-/* Expanded data destination object for stdio output */
-
-typedef struct {
-  struct jpeg_destination_mgr pub; /* public fields */
-
-  byte* outfile;		/* target stream */
-  int	size;
-} my_destination_mgr;
-
-typedef my_destination_mgr * my_dest_ptr;
-
-
-/*
- * Initialize destination --- called by jpeg_start_compress
- * before any data is actually written.
- */
-
-void init_destination (j_compress_ptr cinfo)
-{
-  my_dest_ptr dest = (my_dest_ptr) cinfo->dest;
-
-  dest->pub.next_output_byte = dest->outfile;
-  dest->pub.free_in_buffer = dest->size;
-}
-
-
-/*
- * Empty the output buffer --- called whenever buffer fills up.
- *
- * In typical applications, this should write the entire output buffer
- * (ignoring the current state of next_output_byte & free_in_buffer),
- * reset the pointer & count to the start of the buffer, and return TRUE
- * indicating that the buffer has been dumped.
- *
- * In applications that need to be able to suspend compression due to output
- * overrun, a FALSE return indicates that the buffer cannot be emptied now.
- * In this situation, the compressor will return to its caller (possibly with
- * an indication that it has not accepted all the supplied scanlines).  The
- * application should resume compression after it has made more room in the
- * output buffer.  Note that there are substantial restrictions on the use of
- * suspension --- see the documentation.
- *
- * When suspending, the compressor will back up to a convenient restart point
- * (typically the start of the current MCU). next_output_byte & free_in_buffer
- * indicate where the restart point will be if the current call returns FALSE.
- * Data beyond this point will be regenerated after resumption, so do not
- * write it out when emptying the buffer externally.
- */
-
-boolean empty_output_buffer (j_compress_ptr cinfo)
-{
-  return TRUE;
-}
-
-
-/*
- * Compression initialization.
- * Before calling this, all parameters and a data destination must be set up.
- *
- * We require a write_all_tables parameter as a failsafe check when writing
- * multiple datastreams from the same compression object.  Since prior runs
- * will have left all the tables marked sent_table=TRUE, a subsequent run
- * would emit an abbreviated stream (no tables) by default.  This may be what
- * is wanted, but for safety's sake it should not be the default behavior:
- * programmers should have to make a deliberate choice to emit abbreviated
- * images.  Therefore the documentation and examples should encourage people
- * to pass write_all_tables=TRUE; then it will take active thought to do the
- * wrong thing.
- */
-
-GLOBAL void
-jpeg_start_compress (j_compress_ptr cinfo, boolean write_all_tables)
-{
-  if (cinfo->global_state != CSTATE_START)
-    ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
-
-  if (write_all_tables)
-    jpeg_suppress_tables(cinfo, FALSE);	/* mark all tables to be written */
-
-  /* (Re)initialize error mgr and destination modules */
-  (*cinfo->err->reset_error_mgr) ((j_common_ptr) cinfo);
-  (*cinfo->dest->init_destination) (cinfo);
-  /* Perform master selection of active modules */
-  jinit_compress_master(cinfo);
-  /* Set up for the first pass */
-  (*cinfo->master->prepare_for_pass) (cinfo);
-  /* Ready for application to drive first pass through jpeg_write_scanlines
-   * or jpeg_write_raw_data.
-   */
-  cinfo->next_scanline = 0;
-  cinfo->global_state = (cinfo->raw_data_in ? CSTATE_RAW_OK : CSTATE_SCANNING);
-}
-
-
-/*
- * Write some scanlines of data to the JPEG compressor.
- *
- * The return value will be the number of lines actually written.
- * This should be less than the supplied num_lines only in case that
- * the data destination module has requested suspension of the compressor,
- * or if more than image_height scanlines are passed in.
- *
- * Note: we warn about excess calls to jpeg_write_scanlines() since
- * this likely signals an application programmer error.  However,
- * excess scanlines passed in the last valid call are *silently* ignored,
- * so that the application need not adjust num_lines for end-of-image
- * when using a multiple-scanline buffer.
- */
-
-GLOBAL JDIMENSION
-jpeg_write_scanlines (j_compress_ptr cinfo, JSAMPARRAY scanlines,
-		      JDIMENSION num_lines)
-{
-  JDIMENSION row_ctr, rows_left;
-
-  if (cinfo->global_state != CSTATE_SCANNING)
-    ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
-  if (cinfo->next_scanline >= cinfo->image_height)
-    WARNMS(cinfo, JWRN_TOO_MUCH_DATA);
-
-  /* Call progress monitor hook if present */
-  if (cinfo->progress != NULL) {
-    cinfo->progress->pass_counter = (long) cinfo->next_scanline;
-    cinfo->progress->pass_limit = (long) cinfo->image_height;
-    (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo);
-  }
-
-  /* Give master control module another chance if this is first call to
-   * jpeg_write_scanlines.  This lets output of the frame/scan headers be
-   * delayed so that application can write COM, etc, markers between
-   * jpeg_start_compress and jpeg_write_scanlines.
-   */
-  if (cinfo->master->call_pass_startup)
-    (*cinfo->master->pass_startup) (cinfo);
-
-  /* Ignore any extra scanlines at bottom of image. */
-  rows_left = cinfo->image_height - cinfo->next_scanline;
-  if (num_lines > rows_left)
-    num_lines = rows_left;
-
-  row_ctr = 0;
-  (*cinfo->main->process_data) (cinfo, scanlines, &row_ctr, num_lines);
-  cinfo->next_scanline += row_ctr;
-  return row_ctr;
-}
-
-/*
- * Terminate destination --- called by jpeg_finish_compress
- * after all data has been written.  Usually needs to flush buffer.
- *
- * NB: *not* called by jpeg_abort or jpeg_destroy; surrounding
- * application must deal with any cleanup that should happen even
- * for error exit.
- */
-
-static int hackSize;
-
-void term_destination (j_compress_ptr cinfo)
-{
-  my_dest_ptr dest = (my_dest_ptr) cinfo->dest;
-  size_t datacount = dest->size - dest->pub.free_in_buffer;
-  hackSize = datacount;
-}
-
-
-/*
- * Prepare for output to a stdio stream.
- * The caller must have already opened the stream, and is responsible
- * for closing it after finishing compression.
- */
-
-void jpegDest (j_compress_ptr cinfo, byte* outfile, int size)
-{
-  my_dest_ptr dest;
-
-  /* The destination object is made permanent so that multiple JPEG images
-   * can be written to the same file without re-executing jpeg_stdio_dest.
-   * This makes it dangerous to use this manager and a different destination
-   * manager serially with the same JPEG object, because their private object
-   * sizes may be different.  Caveat programmer.
-   */
-  if (cinfo->dest == NULL) {	/* first time for this JPEG object? */
-    cinfo->dest = (struct jpeg_destination_mgr *)
-      (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT,
-				  sizeof(my_destination_mgr));
-  }
-
-  dest = (my_dest_ptr) cinfo->dest;
-  dest->pub.init_destination = init_destination;
-  dest->pub.empty_output_buffer = empty_output_buffer;
-  dest->pub.term_destination = term_destination;
-  dest->outfile = outfile;
-  dest->size = size;
-}
-
-void SaveJPG(char * filename, int quality, int image_width, int image_height, unsigned char *image_buffer) {
-  /* This struct contains the JPEG compression parameters and pointers to
-   * working space (which is allocated as needed by the JPEG library).
-   * It is possible to have several such structures, representing multiple
-   * compression/decompression processes, in existence at once.  We refer
-   * to any one struct (and its associated working data) as a "JPEG object".
-   */
-  struct jpeg_compress_struct cinfo;
-  /* This struct represents a JPEG error handler.  It is declared separately
-   * because applications often want to supply a specialized error handler
-   * (see the second half of this file for an example).  But here we just
-   * take the easy way out and use the standard error handler, which will
-   * print a message on stderr and call exit() if compression fails.
-   * Note that this struct must live as long as the main JPEG parameter
-   * struct, to avoid dangling-pointer problems.
-   */
-  struct jpeg_error_mgr jerr;
-  /* More stuff */
-  JSAMPROW row_pointer[1];	/* pointer to JSAMPLE row[s] */
-  int row_stride;		/* physical row width in image buffer */
-  unsigned char *out;
-
-  /* Step 1: allocate and initialize JPEG compression object */
-
-  /* We have to set up the error handler first, in case the initialization
-   * step fails.  (Unlikely, but it could happen if you are out of memory.)
-   * This routine fills in the contents of struct jerr, and returns jerr's
-   * address which we place into the link field in cinfo.
-   */
-  cinfo.err = jpeg_std_error(&jerr);
-  /* Now we can initialize the JPEG compression object. */
-  jpeg_create_compress(&cinfo);
-
-  /* Step 2: specify data destination (eg, a file) */
-  /* Note: steps 2 and 3 can be done in either order. */
-
-  /* Here we use the library-supplied code to send compressed data to a
-   * stdio stream.  You can also write your own code to do something else.
-   * VERY IMPORTANT: use "b" option to fopen() if you are on a machine that
-   * requires it in order to write binary files.
-   */
-  out = ri.Hunk_AllocateTempMemory(image_width*image_height*4);
-  jpegDest(&cinfo, out, image_width*image_height*4);
-
-  /* Step 3: set parameters for compression */
-
-  /* First we supply a description of the input image.
-   * Four fields of the cinfo struct must be filled in:
-   */
-  cinfo.image_width = image_width; 	/* image width and height, in pixels */
-  cinfo.image_height = image_height;
-  cinfo.input_components = 4;		/* # of color components per pixel */
-  cinfo.in_color_space = JCS_RGB; 	/* colorspace of input image */
-  /* Now use the library's routine to set default compression parameters.
-   * (You must set at least cinfo.in_color_space before calling this,
-   * since the defaults depend on the source color space.)
-   */
-  jpeg_set_defaults(&cinfo);
-  /* Now you can set any non-default parameters you wish to.
-   * Here we just illustrate the use of quality (quantization table) scaling:
-   */
-  jpeg_set_quality(&cinfo, quality, TRUE /* limit to baseline-JPEG values */);
-  /* If quality is set high, disable chroma subsampling */
-  if (quality >= 85) {
-    cinfo.comp_info[0].h_samp_factor = 1;
-    cinfo.comp_info[0].v_samp_factor = 1;
-  }
-
-  /* Step 4: Start compressor */
-
-  /* TRUE ensures that we will write a complete interchange-JPEG file.
-   * Pass TRUE unless you are very sure of what you're doing.
-   */
-  jpeg_start_compress(&cinfo, TRUE);
-
-  /* Step 5: while (scan lines remain to be written) */
-  /*           jpeg_write_scanlines(...); */
-
-  /* Here we use the library's state variable cinfo.next_scanline as the
-   * loop counter, so that we don't have to keep track ourselves.
-   * To keep things simple, we pass one scanline per call; you can pass
-   * more if you wish, though.
-   */
-  row_stride = image_width * 4;	/* JSAMPLEs per row in image_buffer */
-
-  while (cinfo.next_scanline < cinfo.image_height) {
-    /* jpeg_write_scanlines expects an array of pointers to scanlines.
-     * Here the array is only one element long, but you could pass
-     * more than one scanline at a time if that's more convenient.
-     */
-    row_pointer[0] = & image_buffer[((cinfo.image_height-1)*row_stride)-cinfo.next_scanline * row_stride];
-    (void) jpeg_write_scanlines(&cinfo, row_pointer, 1);
-  }
-
-  /* Step 6: Finish compression */
-
-  jpeg_finish_compress(&cinfo);
-  /* After finish_compress, we can close the output file. */
-  ri.FS_WriteFile( filename, out, hackSize );
-
-  ri.Hunk_FreeTempMemory(out);
-
-  /* Step 7: release JPEG compression object */
-
-  /* This is an important step since it will release a good deal of memory. */
-  jpeg_destroy_compress(&cinfo);
-
-  /* And we're done! */
-}
-
-/*
-=================
-SaveJPGToBuffer
-=================
-*/
-int SaveJPGToBuffer( byte *buffer, int quality,
-    int image_width, int image_height,
-    byte *image_buffer )
-{
-  struct jpeg_compress_struct cinfo;
-  struct jpeg_error_mgr jerr;
-  JSAMPROW row_pointer[1];	/* pointer to JSAMPLE row[s] */
-  int row_stride;		/* physical row width in image buffer */
-
-  /* Step 1: allocate and initialize JPEG compression object */
-  cinfo.err = jpeg_std_error(&jerr);
-  /* Now we can initialize the JPEG compression object. */
-  jpeg_create_compress(&cinfo);
-
-  /* Step 2: specify data destination (eg, a file) */
-  /* Note: steps 2 and 3 can be done in either order. */
-  jpegDest(&cinfo, buffer, image_width*image_height*4);
-
-  /* Step 3: set parameters for compression */
-  cinfo.image_width = image_width; 	/* image width and height, in pixels */
-  cinfo.image_height = image_height;
-  cinfo.input_components = 4;		/* # of color components per pixel */
-  cinfo.in_color_space = JCS_RGB; 	/* colorspace of input image */
-
-  jpeg_set_defaults(&cinfo);
-  jpeg_set_quality(&cinfo, quality, TRUE /* limit to baseline-JPEG values */);
-  /* If quality is set high, disable chroma subsampling */
-  if (quality >= 85) {
-    cinfo.comp_info[0].h_samp_factor = 1;
-    cinfo.comp_info[0].v_samp_factor = 1;
-  }
-
-  /* Step 4: Start compressor */
-  jpeg_start_compress(&cinfo, TRUE);
-
-  /* Step 5: while (scan lines remain to be written) */
-  /*           jpeg_write_scanlines(...); */
-  row_stride = image_width * 4;	/* JSAMPLEs per row in image_buffer */
-
-  while (cinfo.next_scanline < cinfo.image_height) {
-    /* jpeg_write_scanlines expects an array of pointers to scanlines.
-     * Here the array is only one element long, but you could pass
-     * more than one scanline at a time if that's more convenient.
-     */
-    row_pointer[0] = & image_buffer[((cinfo.image_height-1)*row_stride)-cinfo.next_scanline * row_stride];
-    (void) jpeg_write_scanlines(&cinfo, row_pointer, 1);
-  }
-
-  /* Step 6: Finish compression */
-  jpeg_finish_compress(&cinfo);
-
-  /* Step 7: release JPEG compression object */
-  jpeg_destroy_compress(&cinfo);
-
-  /* And we're done! */
-  return hackSize;
-}
-
-//===================================================================
-
-/*
-=================
-PNG LOADING
-=================
-*/
-
-/*
- *  Quake 3 image format : RGBA
- */
-
-#define Q3IMAGE_BYTESPERPIXEL (4)
-
-/*
- *  PNG specifications
- */
-
-/*
- *  The first 8 Bytes of every PNG-File are a fixed signature
- *  to identify the file as a PNG.
- */
-
-#define PNG_Signature "\x89\x50\x4E\x47\xD\xA\x1A\xA"
-#define PNG_Signature_Size (8)
-
-/*
- *  After the signature diverse chunks follow.
- *  A chunk consists of a header and if Length
- *  is bigger than 0 a body and a CRC of the body follow.
- */
-
-struct PNG_ChunkHeader
-{
-    uint32_t Length;
-    uint32_t Type;
-};
-
-#define PNG_ChunkHeader_Size (8)
-
-typedef uint32_t PNG_ChunkCRC;
-
-#define PNG_ChunkCRC_Size (4)
-
-/*
- *  We use the following ChunkTypes.
- *  All others are ignored.
- */
-
-#define MAKE_CHUNKTYPE(a,b,c,d) (((a) << 24) | ((b) << 16) | ((c) << 8) | ((d)))
-
-#define PNG_ChunkType_IHDR MAKE_CHUNKTYPE('I', 'H', 'D', 'R')
-#define PNG_ChunkType_PLTE MAKE_CHUNKTYPE('P', 'L', 'T', 'E')
-#define PNG_ChunkType_IDAT MAKE_CHUNKTYPE('I', 'D', 'A', 'T')
-#define PNG_ChunkType_IEND MAKE_CHUNKTYPE('I', 'E', 'N', 'D')
-#define PNG_ChunkType_tRNS MAKE_CHUNKTYPE('t', 'R', 'N', 'S')
-
-/*
- *  Per specification the first chunk after the signature SHALL be IHDR.
- */
-
-struct PNG_Chunk_IHDR
-{
-    uint32_t Width;
-    uint32_t Height;
-    uint8_t  BitDepth;
-    uint8_t  ColourType;
-    uint8_t  CompressionMethod;
-    uint8_t  FilterMethod;
-    uint8_t  InterlaceMethod;
-};
-
-#define PNG_Chunk_IHDR_Size (13)
-
-/*
- *  ColourTypes
- */
-
-#define PNG_ColourType_Grey      (0)
-#define PNG_ColourType_True      (2)
-#define PNG_ColourType_Indexed   (3)
-#define PNG_ColourType_GreyAlpha (4)
-#define PNG_ColourType_TrueAlpha (6)
-
-/*
- *  number of colour components
- *
- *  Grey      : 1 grey
- *  True      : 1 R, 1 G, 1 B
- *  Indexed   : 1 index
- *  GreyAlpha : 1 grey, 1 alpha
- *  TrueAlpha : 1 R, 1 G, 1 B, 1 alpha
- */
-
-#define PNG_NumColourComponents_Grey      (1)
-#define PNG_NumColourComponents_True      (3)
-#define PNG_NumColourComponents_Indexed   (1)
-#define PNG_NumColourComponents_GreyAlpha (2)
-#define PNG_NumColourComponents_TrueAlpha (4)
-
-/*
- *  For the different ColourTypes
- *  different BitDepths are specified.
- */
-
-#define PNG_BitDepth_1  ( 1)
-#define PNG_BitDepth_2  ( 2)
-#define PNG_BitDepth_4  ( 4)
-#define PNG_BitDepth_8  ( 8)
-#define PNG_BitDepth_16 (16)
-
-/*
- *  Only one valid CompressionMethod is standardized.
- */
-
-#define PNG_CompressionMethod_0 (0)
-
-/*
- *  Only one valid FilterMethod is currently standardized.
- */
-
-#define PNG_FilterMethod_0 (0)
-
-/*
- *  This FilterMethod defines 5 FilterTypes
- */
-
-#define PNG_FilterType_None    (0)
-#define PNG_FilterType_Sub     (1)
-#define PNG_FilterType_Up      (2)
-#define PNG_FilterType_Average (3)
-#define PNG_FilterType_Paeth   (4)
-
-/*
- *  Two InterlaceMethods are standardized :
- *  0 - NonInterlaced
- *  1 - Interlaced
- */
-
-#define PNG_InterlaceMethod_NonInterlaced (0)
-#define PNG_InterlaceMethod_Interlaced    (1)
-
-/*
- *  The Adam7 interlace method uses 7 passes.
- */
-
-#define PNG_Adam7_NumPasses (7)
-
-/*
- *  The compressed data starts with a header ...
- */
-
-struct PNG_ZlibHeader
-{
-    uint8_t CompressionMethod;
-    uint8_t Flags;
-};
-
-#define PNG_ZlibHeader_Size (2)
-
-/*
- *  ... and is followed by a check value
- */
-
-#define PNG_ZlibCheckValue_Size (4)
-
-/*
- *  Some support functions for buffered files follow.
- */
-
-/*
- *  buffered file representation
- */
-
-struct BufferedFile
-{
-    byte *Buffer;
-    int   Length;
-    byte *Ptr;
-    int   BytesLeft;
-};
-
-/*
- *  Read a file into a buffer.
- */
-
-static struct BufferedFile *ReadBufferedFile(const char *name)
-{
-    struct BufferedFile *BF;
-
-    /*
-     *  input verification
-     */
-
-    if(!name)
-    {
-        return(NULL);
-    }
-
-    /*
-     *  Allocate control struct.
-     */
-
-    BF = ri.Malloc(sizeof(struct BufferedFile));
-    if(!BF)
-    {
-        return(NULL);
-    }
-
-    /*
-     *  Initialize the structs components.
-     */
-
-    BF->Length    = 0;
-    BF->Buffer    = NULL;
-    BF->Ptr       = NULL;
-    BF->BytesLeft = 0;
-
-    /*
-     *  Read the file.
-     */
-
-    BF->Length = ri.FS_ReadFile((char *) name, (void **) &BF->Buffer);
-
-    /*
-     *  Did we get it? Is it big enough?
-     */
-
-    if(!(BF->Buffer && (BF->Length > 0)))
-    {
-        ri.Free(BF);
-
-        return(NULL);
-    }
-
-    /*
-     *  Set the pointers and counters.
-     */
-
-    BF->Ptr       = BF->Buffer;
-    BF->BytesLeft = BF->Length;
-
-    return(BF);
-}
-
-/*
- *  Close a buffered file.
- */
-
-static void CloseBufferedFile(struct BufferedFile *BF)
-{
-    if(BF)
-    {
-        if(BF->Buffer)
-        {
-            ri.FS_FreeFile(BF->Buffer);
-        }
- 
-        ri.Free(BF);
-    }
-}
-
-/*
- *  Get a pointer to the requested bytes.
- */
-
-static void *BufferedFileRead(struct BufferedFile *BF, int Length)
-{
-    void *RetVal;
-
-    /*
-     *  input verification
-     */
-
-    if(!(BF && Length))
-    {
-        return(NULL);
-    }
- 
-    /*
-     *  not enough bytes left
-     */
-
-    if(Length > BF->BytesLeft)
-    {
-        return(NULL);
-    }
-
-    /*
-     *  the pointer to the requested data
-     */
-
-    RetVal = BF->Ptr;
- 
-    /*
-     *  Raise the pointer and counter.
-     */
-
-    BF->Ptr       += Length;
-    BF->BytesLeft -= Length;
-
-    return(RetVal);
-}
-
-/*
- *  Rewind the buffer.
- */
-
-static qboolean BufferedFileRewind(struct BufferedFile *BF, int Offset)
-{
-    int BytesRead; 
-
-    /*
-     *  input verification
-     */
-
-    if(!BF)
-    {
-        return(qfalse);
-    }
-
-    /*
-     *  special trick to rewind to the beginning of the buffer
-     */
-
-    if(Offset == -1)
-    {
-        BF->Ptr       = BF->Buffer;
-        BF->BytesLeft = BF->Length;
-  
-        return(qtrue);
-    }
-
-    /*
-     *  How many bytes do we have already read?
-     */
-
-    BytesRead = BF->Ptr - BF->Buffer;
-
-    /*
-     *  We can only rewind to the beginning of the BufferedFile.
-     */
-
-    if(Offset > BytesRead)
-    {
-        return(qfalse);
-    }
-
-    /*
-     *  lower the pointer and counter.
-     */
-
-    BF->Ptr       -= Offset;
-    BF->BytesLeft += Offset;
-
-    return(qtrue);
-}
-
-/*
- *  Skip some bytes.
- */
-
-static qboolean BufferedFileSkip(struct BufferedFile *BF, int Offset)
-{
-    /*
-     *  input verification
-     */
-
-    if(!BF)
-    {
-        return(qfalse);
-    }
- 
-    /*
-     *  We can only skip to the end of the BufferedFile.
-     */
-
-    if(Offset > BF->BytesLeft)
-    {
-        return(qfalse);
-    }
-
-    /*
-     *  lower the pointer and counter.
-     */
-
-    BF->Ptr       += Offset;
-    BF->BytesLeft -= Offset;
-
-    return(qtrue);
-}
-
-/*
- *  Find a chunk
- */
-
-static qboolean FindChunk(struct BufferedFile *BF, uint32_t ChunkType)
-{
-    struct PNG_ChunkHeader *CH;
-
-    uint32_t Length;
-    uint32_t Type;
-
-    /*
-     *  input verification
-     */
-
-    if(!BF)
-    {
-        return(qfalse);
-    }
-
-    /*
-     *  cycle trough the chunks
-     */
-
-    while(qtrue)
-    {
-        /*
-         *  Read the chunk-header.
-         */
-
-        CH = BufferedFileRead(BF, PNG_ChunkHeader_Size);
-        if(!CH)
-        {
-            return(qfalse);
-        }
-
-        /*
-         *  Do not swap the original types
-         *  they might be needed later.
-         */
-
-        Length = BigLong(CH->Length);
-        Type   = BigLong(CH->Type);
-  
-        /*
-         *  We found it!
-         */
-
-        if(Type == ChunkType)
-        {
-            /*
-             *  Rewind to the start of the chunk.
-             */
-	     
-            BufferedFileRewind(BF, PNG_ChunkHeader_Size);
-  
-            break;
-        }
-        else
-        {
-            /*
-             *  Skip the rest of the chunk.
-             */
-
-            if(Length)
-            {
-                if(!BufferedFileSkip(BF, Length + PNG_ChunkCRC_Size))
-                {
-                    return(qfalse);
-                }  
-            }
-        }
-    }
-
-    return(qtrue);
-}
-
-/*
- *  Decompress all IDATs
- */
-
-static uint32_t DecompressIDATs(struct BufferedFile *BF, uint8_t **Buffer)
-{
-    uint8_t  *DecompressedData;
-    uint32_t  DecompressedDataLength;
-
-    uint8_t  *CompressedData;
-    uint8_t  *CompressedDataPtr;
-    uint32_t  CompressedDataLength;
-
-    struct PNG_ChunkHeader *CH;
-
-    uint32_t Length;
-    uint32_t Type;
-
-    int BytesToRewind;
-
-    int32_t   puffResult;
-    uint8_t  *puffDest;
-    uint32_t  puffDestLen;
-    uint8_t  *puffSrc;
-    uint32_t  puffSrcLen;
-
-    /*
-     *  input verification
-     */
-
-    if(!(BF && Buffer))
-    {
-        return(-1);
-    }
-
-    /*
-     *  some zeroing
-     */
-
-    DecompressedData = NULL;
-    DecompressedDataLength = 0;
-    *Buffer = DecompressedData;
-
-    CompressedData = NULL;
-    CompressedDataLength = 0;
-
-    BytesToRewind = 0;
-
-    /*
-     *  Find the first IDAT chunk.
-     */
-
-    if(!FindChunk(BF, PNG_ChunkType_IDAT))
-    {
-        return(-1);
-    }
-
-    /*
-     *  Count the size of the uncompressed data
-     */
-
-    while(qtrue)
-    {
-        /*
-         *  Read chunk header
-         */
-
-        CH = BufferedFileRead(BF, PNG_ChunkHeader_Size);
-        if(!CH)
-        {
-            /*
-             *  Rewind to the start of this adventure
-             *  and return unsuccessfull
-             */
-
-            BufferedFileRewind(BF, BytesToRewind);
-
-            return(-1);
-        }
-
-        /*
-         *  Length and Type of chunk
-         */
-
-        Length = BigLong(CH->Length);
-        Type   = BigLong(CH->Type);
-
-        /*
-         *  We have reached the end of the IDAT chunks
-         */
-
-        if(!(Type == PNG_ChunkType_IDAT))
-        {
-            BufferedFileRewind(BF, PNG_ChunkHeader_Size); 
-  
-            break;
-        }
-
-        /*
-         *  Add chunk header to count.
-         */
-
-        BytesToRewind += PNG_ChunkHeader_Size;
-
-        /*
-         *  Skip to next chunk
-         */
-
-        if(Length)
-        {
-            if(!BufferedFileSkip(BF, Length + PNG_ChunkCRC_Size))
-            {
-                BufferedFileRewind(BF, BytesToRewind);
-
-                return(-1);
-            }
-
-            BytesToRewind += Length + PNG_ChunkCRC_Size;
-            CompressedDataLength += Length;
-        } 
-    }
-
-    BufferedFileRewind(BF, BytesToRewind);
-
-    CompressedData = ri.Malloc(CompressedDataLength);
-    if(!CompressedData)
-    {
-        return(-1);
-    }
- 
-    CompressedDataPtr = CompressedData;
-
-    /*
-     *  Collect the compressed Data
-     */
-
-    while(qtrue)
-    {
-        /*
-         *  Read chunk header
-         */
-
-        CH = BufferedFileRead(BF, PNG_ChunkHeader_Size);
-        if(!CH)
-        {
-            ri.Free(CompressedData); 
-  
-            return(-1);
-        }
-
-        /*
-         *  Length and Type of chunk
-         */
-
-        Length = BigLong(CH->Length);
-        Type   = BigLong(CH->Type);
-
-        /*
-         *  We have reached the end of the IDAT chunks
-         */
-
-        if(!(Type == PNG_ChunkType_IDAT))
-        {
-            BufferedFileRewind(BF, PNG_ChunkHeader_Size); 
-  
-            break;
-        }
-
-        /*
-         *  Copy the Data
-         */
-
-        if(Length)
-        {
-            uint8_t *OrigCompressedData;
-   
-            OrigCompressedData = BufferedFileRead(BF, Length);
-            if(!OrigCompressedData)
-            {
-                ri.Free(CompressedData); 
-  
-                return(-1);
-            }
-
-            if(!BufferedFileSkip(BF, PNG_ChunkCRC_Size))
-            {
-                ri.Free(CompressedData); 
-
-                return(-1);
-            }
-  
-            memcpy(CompressedDataPtr, OrigCompressedData, Length);
-            CompressedDataPtr += Length;
-        } 
-    }
-
-    /*
-     *  Let puff() calculate the decompressed data length.
-     */
-
-    puffDest    = NULL;
-    puffDestLen = 0;
- 
-    /*
-     *  The zlib header and checkvalue don't belong to the compressed data.
-     */
-
-    puffSrc    = CompressedData + PNG_ZlibHeader_Size;
-    puffSrcLen = CompressedDataLength - PNG_ZlibHeader_Size - PNG_ZlibCheckValue_Size;
-
-    /*
-     *  first puff() to calculate the size of the uncompressed data
-     */
-
-    puffResult = puff(puffDest, &puffDestLen, puffSrc, &puffSrcLen);
-    if(!((puffResult == 0) && (puffDestLen > 0)))
-    {
-        ri.Free(CompressedData);
- 
-        return(-1);
-    }
-
-    /*
-     *  Allocate the buffer for the uncompressed data.
-     */
-
-    DecompressedData = ri.Malloc(puffDestLen);
-    if(!DecompressedData)
-    {
-        ri.Free(CompressedData);
- 
-        return(-1);
-    }
-
-    /*
-     *  Set the input again in case something was changed by the last puff() .
-     */
-
-    puffDest   = DecompressedData;
-    puffSrc    = CompressedData + PNG_ZlibHeader_Size;
-    puffSrcLen = CompressedDataLength - PNG_ZlibHeader_Size - PNG_ZlibCheckValue_Size;
- 
-    /*
-     *  decompression puff()
-     */
-
-    puffResult = puff(puffDest, &puffDestLen, puffSrc, &puffSrcLen);
-
-    /*
-     *  The compressed data is not needed anymore.
-     */
-
-    ri.Free(CompressedData);
-
-    /*
-     *  Check if the last puff() was successfull.
-     */
-
-    if(!((puffResult == 0) && (puffDestLen > 0)))
-    {
-        ri.Free(DecompressedData);
- 
-        return(-1);
-    }
-
-    /*
-     *  Set the output of this function.
-     */
-
-    DecompressedDataLength = puffDestLen;
-    *Buffer = DecompressedData;
-
-    return(DecompressedDataLength);
-}
-
-/*
- *  the Paeth predictor
- */
-
-static uint8_t PredictPaeth(uint8_t a, uint8_t b, uint8_t c)
-{
-    /*
-     *  a == Left
-     *  b == Up
-     *  c == UpLeft
-     */
-
-    uint8_t Pr;
-    int p;
-    int pa, pb, pc;
-
-    Pr = 0;
-
-    p  = ((int) a) + ((int) b) - ((int) c);
-    pa = abs(p - ((int) a));
-    pb = abs(p - ((int) b));
-    pc = abs(p - ((int) c));
-
-    if((pa <= pb) && (pa <= pc))
-    {
-        Pr = a;
-    }
-    else if(pb <= pc)
-    {
-        Pr = b;
-    }
-    else
-    {
-        Pr = c;
-    }
-
-    return(Pr);
-
-}
-
-/*
- *  Reverse the filters.
- */
-
-static qboolean UnfilterImage(uint8_t  *DecompressedData, 
-                              uint32_t  ImageHeight,
-		              uint32_t  BytesPerScanline, 
-		              uint32_t  BytesPerPixel)
-{
-    uint8_t   *DecompPtr;
-    uint8_t   FilterType;
-    uint8_t  *PixelLeft, *PixelUp, *PixelUpLeft;
-    uint32_t  w, h, p;
-
-    /*
-     *  some zeros for the filters
-     */
-
-    uint8_t Zeros[8] = {0, 0, 0, 0, 0, 0, 0, 0};
-
-    /*
-     *  input verification
-     *
-     *  ImageHeight and BytesPerScanline are not checked,
-     *  because these can be zero in some interlace passes.
-     */
-
-    if(!(DecompressedData && BytesPerPixel))
-    {
-	return(qfalse);
-    }
-
-
-    /*
-     *  Set the pointer to the start of the decompressed Data.
-     */
-
-    DecompPtr = DecompressedData;
-
-    /*
-     *  Un-filtering is done in place.
-     */
-
-    /*
-     *  Go trough all scanlines.
-     */
-
-    for(h = 0; h < ImageHeight; h++)
-    {
-        /*
-         *  Every scanline starts with a FilterType byte.
-         */
-
-        FilterType = *DecompPtr;
-        DecompPtr++;
-
-        /*
-         *  Left pixel of the first byte in a scanline is zero.
-         */
-
-        PixelLeft = Zeros;
-
-        /*
-         *  Set PixelUp to previous line only if we are on the second line or above.
-         *
-         *  Plus one byte for the FilterType
-         */
-
-        if(h > 0)
-        {
-            PixelUp = DecompPtr - (BytesPerScanline + 1);
-        }
-        else
-        {
-            PixelUp = Zeros;
-        }
-
-        /*
-         * The pixel left to the first pixel of the previous scanline is zero too.
-         */
-
-        PixelUpLeft = Zeros;
-
-        /*
-         *  Cycle trough all pixels of the scanline.
-         */
-
-        for(w = 0; w < (BytesPerScanline / BytesPerPixel); w++)
-        {
-            /*
-             *  Cycle trough the bytes of the pixel.
-             */
-
-            for(p = 0; p < BytesPerPixel; p++)
-            {
-                switch(FilterType)
-                { 
-                    case PNG_FilterType_None :
-                    {
-                        /*
-                         *  The byte is unfiltered.
-                         */
-
-                        break;
-                    }
-
-                    case PNG_FilterType_Sub :
-                    {
-                        DecompPtr[p] += PixelLeft[p];
-
-                        break;
-                    }
-
-		    case PNG_FilterType_Up :
-                    {
-                        DecompPtr[p] += PixelUp[p];
-
-                        break;
-                    }
-
-                    case PNG_FilterType_Average :
-                    {
-                        DecompPtr[p] += ((uint8_t) ((((uint16_t) PixelLeft[p]) + ((uint16_t) PixelUp[p])) / 2));
-
-                        break;
-                    }
-
-                    case PNG_FilterType_Paeth :
-                    {
-                        DecompPtr[p] += PredictPaeth(PixelLeft[p], PixelUp[p], PixelUpLeft[p]);
-
-                        break;
-                    }
-
-                    default :
-                    {
-                        return(qfalse);
-                    }
-                }
-            }
-   
-            PixelLeft = DecompPtr;
-
-            /*
-             *  We only have a upleft pixel if we are on the second line or above.
-             */
-
-            if(h > 0)
-            {
-                PixelUpLeft = DecompPtr - (BytesPerScanline + 1);
-            }
-
-	    /*
-             *  Skip to the next pixel.
-             */
-
-            DecompPtr += BytesPerPixel;
-	 
-            /*
-             *  We only have a previous line if we are on the second line and above.
-             */
-
-            if(h > 0)
-            {
-                PixelUp = DecompPtr - (BytesPerScanline + 1);
-            }
-        }
-    }
-
- return(qtrue);
-}
-
-/*
- *  Convert a raw input pixel to Quake 3 RGA format.
- */
-
-static qboolean ConvertPixel(struct PNG_Chunk_IHDR *IHDR,
-			     byte                  *OutPtr,
-			     uint8_t               *DecompPtr,
-                             qboolean               HasTransparentColour,
-                             uint8_t               *TransparentColour,
-                             uint8_t               *OutPal)
-{
-    /*
-     *  input verification
-     */
-    
-    if(!(IHDR && OutPtr && DecompPtr && TransparentColour && OutPal))
-    {
-     return(qfalse);
-    }
-
-    switch(IHDR->ColourType)
-    {
-        case PNG_ColourType_Grey :
-        {
-            switch(IHDR->BitDepth)
-            {
-                case PNG_BitDepth_1 :
-                case PNG_BitDepth_2 :
-                case PNG_BitDepth_4 :
-                {
-    		    uint8_t Step;
-                    uint8_t GreyValue;
-
-                    Step = 0xFF / ((1 << IHDR->BitDepth) - 1);
-
-                    GreyValue = DecompPtr[0] * Step;
-  
-                    OutPtr[0] = GreyValue;
-                    OutPtr[1] = GreyValue;
-                    OutPtr[2] = GreyValue;
-                    OutPtr[3] = 0xFF;
-
-                    /*
-                     *  Grey supports full transparency for one specified colour
-                     */
-
-                    if(HasTransparentColour)
-                    {
-                        if(TransparentColour[1] == DecompPtr[0])
-                        {
-                            OutPtr[3] = 0x00;
-                        }
-                    }
-	
-
-                    break;
-                }
-      
-                case PNG_BitDepth_8 :
-                case PNG_BitDepth_16 :
-                {
-                    OutPtr[0] = DecompPtr[0];
-                    OutPtr[1] = DecompPtr[0];
-                    OutPtr[2] = DecompPtr[0];
-                    OutPtr[3] = 0xFF;
-      
-                    /*
-                     *  Grey supports full transparency for one specified colour
-                     */
-
-                    if(HasTransparentColour)
-                    {
-                        if(IHDR->BitDepth == PNG_BitDepth_8)
-                        {
-                            if(TransparentColour[1] == DecompPtr[0])
-                            {
-                                OutPtr[3] = 0x00;
-                            }
-                        }
-                        else
-                        {
-                            if((TransparentColour[0] == DecompPtr[0]) && (TransparentColour[1] == DecompPtr[1]))
-                            {
-                                OutPtr[3] = 0x00;
-                            }
-                        }
-                    }
-
-                    break;
-                }
-      
-                default :
-                {
-                    return(qfalse);
-                }
-            }
-    
-            break;
-        }
-
-        case PNG_ColourType_True :
-        {
-            switch(IHDR->BitDepth)
-            {
-                case PNG_BitDepth_8 :
-                {
-                    OutPtr[0] = DecompPtr[0];
-                    OutPtr[1] = DecompPtr[1];
-                    OutPtr[2] = DecompPtr[2];
-                    OutPtr[3] = 0xFF;
-      
-                    /*
-                     *  True supports full transparency for one specified colour
-                     */
-
-                    if(HasTransparentColour)
-                    {
-                        if((TransparentColour[1] == DecompPtr[0]) &&
-                           (TransparentColour[3] == DecompPtr[1]) &&
-                           (TransparentColour[5] == DecompPtr[3]))
-                        {
-                            OutPtr[3] = 0x00;
-                        }
-                    }
-
-                    break;
-                }
-      
-                case PNG_BitDepth_16 :
-                {
-                    /*
-                     *  We use only the upper byte.
-                     */
-
-                    OutPtr[0] = DecompPtr[0];
-                    OutPtr[1] = DecompPtr[2];
-                    OutPtr[2] = DecompPtr[4];
-                    OutPtr[3] = 0xFF;
-      
-                    /*
-                     *  True supports full transparency for one specified colour
-                     */
-
-                    if(HasTransparentColour)
-                    {
-                        if((TransparentColour[0] == DecompPtr[0]) && (TransparentColour[1] == DecompPtr[1]) &&
-                           (TransparentColour[2] == DecompPtr[2]) && (TransparentColour[3] == DecompPtr[3]) &&
-                           (TransparentColour[4] == DecompPtr[4]) && (TransparentColour[5] == DecompPtr[5]))
-                        {
-                            OutPtr[3] = 0x00;
-                        }
-                    }
-
-                    break;
-                }
-
-                default :
-                {
-                    return(qfalse);
-                }
-            }
-
-            break;
-        }
-
-        case PNG_ColourType_Indexed :
-        {
-            OutPtr[0] = OutPal[DecompPtr[0] * Q3IMAGE_BYTESPERPIXEL + 0];
-            OutPtr[1] = OutPal[DecompPtr[0] * Q3IMAGE_BYTESPERPIXEL + 1];
-            OutPtr[2] = OutPal[DecompPtr[0] * Q3IMAGE_BYTESPERPIXEL + 2];
-            OutPtr[3] = OutPal[DecompPtr[0] * Q3IMAGE_BYTESPERPIXEL + 3];
-	
-            break;
-        }
-
-        case PNG_ColourType_GreyAlpha :
-        {
-            switch(IHDR->BitDepth)
-            {
-                case PNG_BitDepth_8 :
-                {
-                    OutPtr[0] = DecompPtr[0];
-                    OutPtr[1] = DecompPtr[0];
-                    OutPtr[2] = DecompPtr[0];
-                    OutPtr[3] = DecompPtr[1];
-      
-                    break;
-                }
-  
-                case PNG_BitDepth_16 :
-                {
-                    /*
-                     *  We use only the upper byte.
-                     */
-
-                    OutPtr[0] = DecompPtr[0];
-                    OutPtr[1] = DecompPtr[0];
-                    OutPtr[2] = DecompPtr[0];
-                    OutPtr[3] = DecompPtr[2];
-      
-                    break;
-                }
-
-                default :
-                {
-                    return(qfalse);
-                }
-            }
-
-            break;
-        }
-
-        case PNG_ColourType_TrueAlpha :
-        {
-            switch(IHDR->BitDepth)
-            {
-                case PNG_BitDepth_8 :
-                {
-                    OutPtr[0] = DecompPtr[0];
-                    OutPtr[1] = DecompPtr[1];
-                    OutPtr[2] = DecompPtr[2];
-                    OutPtr[3] = DecompPtr[3];
-      
-                    break;
-                }
-      
-                case PNG_BitDepth_16 :
-                {
-                    /*
-                     *  We use only the upper byte.
-                     */
-
-                    OutPtr[0] = DecompPtr[0];
-                    OutPtr[1] = DecompPtr[2];
-                    OutPtr[2] = DecompPtr[4];
-                    OutPtr[3] = DecompPtr[6];
-      
-                    break;
-                }
-
-                default :
-                {
-                    return(qfalse);
-                }
-            }
-
-            break;
-        }
-
-        default :
-        {
-            return(qfalse);
-        }
-    }
-
-    return(qtrue);
-}
-
-
-/*
- *  Decode a non-interlaced image.
- */
-
-static qboolean DecodeImageNonInterlaced(struct PNG_Chunk_IHDR *IHDR,
-                                         byte                  *OutBuffer, 
-                                         uint8_t               *DecompressedData,
-                                         uint32_t               DecompressedDataLength,
-                                         qboolean               HasTransparentColour,
-                                         uint8_t               *TransparentColour,
-                                         uint8_t               *OutPal)
-{
-    uint32_t IHDR_Width;
-    uint32_t IHDR_Height;
-    uint32_t BytesPerScanline, BytesPerPixel, PixelsPerByte;
-    uint32_t  w, h, p;
-    byte *OutPtr;
-    uint8_t *DecompPtr;
-
-    /*
-     *  input verification
-     */
-
-    if(!(IHDR && OutBuffer && DecompressedData && DecompressedDataLength && TransparentColour && OutPal))
-    {
-	return(qfalse);
-    }
-
-    /*
-     *  byte swapping
-     */
-     
-    IHDR_Width  = BigLong(IHDR->Width);
-    IHDR_Height = BigLong(IHDR->Height);
-
-    /*
-     *  information for un-filtering
-     */
-
-    switch(IHDR->ColourType)
-    {
-        case PNG_ColourType_Grey :
-        {
-            switch(IHDR->BitDepth)
-            {
-                case PNG_BitDepth_1 :
-                case PNG_BitDepth_2 :
-                case PNG_BitDepth_4 :
-                {
-                    BytesPerPixel    = 1;
-                    PixelsPerByte    = 8 / IHDR->BitDepth;
-
-                    break;
-                }
-
-                case PNG_BitDepth_8  :
-                case PNG_BitDepth_16 :
-                {
-                    BytesPerPixel    = (IHDR->BitDepth / 8) * PNG_NumColourComponents_Grey;
-                    PixelsPerByte    = 1;
-
-                    break;
-                }
-
-                default :
-                {
-                    return(qfalse);
-                }
-            }
-  
-            break;
-        }
-  
-        case PNG_ColourType_True :
-        {
-            switch(IHDR->BitDepth)
-            {
-                case PNG_BitDepth_8  :
-                case PNG_BitDepth_16 :
-                {
-                    BytesPerPixel    = (IHDR->BitDepth / 8) * PNG_NumColourComponents_True;
-                    PixelsPerByte    = 1;
-
-                    break;
-                }
-     
-                default :
-                {
-                    return(qfalse);
-                }
-            }
-  
-            break;
-        }
-
-        case PNG_ColourType_Indexed :
-        {
-            switch(IHDR->BitDepth)
-            {
-                case PNG_BitDepth_1 :
-                case PNG_BitDepth_2 :
-                case PNG_BitDepth_4 :
-                {
-                    BytesPerPixel    = 1;
-                    PixelsPerByte    = 8 / IHDR->BitDepth;
-
-                    break;
-                }
-
-                case PNG_BitDepth_8 :
-                {
-                    BytesPerPixel    = PNG_NumColourComponents_Indexed;
-                    PixelsPerByte    = 1;
-
-                    break;
-                }
-         
-                default :
-                {
-                    return(qfalse);
-                }
-            }
-  
-            break;
-        }
-
-        case PNG_ColourType_GreyAlpha :
-        {
-            switch(IHDR->BitDepth)
-            {
-                case PNG_BitDepth_8 :
-                case PNG_BitDepth_16 :
-                {
-                    BytesPerPixel    = (IHDR->BitDepth / 8) * PNG_NumColourComponents_GreyAlpha;
-                    PixelsPerByte    = 1;
-
-                    break;
-                }
-     
-                default :
-                {
-                    return(qfalse);
-                }
-            }
-  
-            break;
-        }
-
-        case PNG_ColourType_TrueAlpha :
-        {
-            switch(IHDR->BitDepth)
-            {
-                case PNG_BitDepth_8 :
-                case PNG_BitDepth_16 :
-                {
-                    BytesPerPixel    = (IHDR->BitDepth / 8) * PNG_NumColourComponents_TrueAlpha;
-                    PixelsPerByte    = 1;
-
-                    break;
-                }
-    
-                default :
-                {
-                    return(qfalse);
-                }
-            }
-
-            break;
-        }
-
-        default :
-        {
-            return(qfalse);
-        }
-    }
-
-    /*
-     *  Calculate the size of one scanline
-     */
-
-    BytesPerScanline = (IHDR_Width * BytesPerPixel + (PixelsPerByte - 1)) / PixelsPerByte;
-
-    /*
-     *  Check if we have enough data for the whole image.
-     */
-
-    if(!(DecompressedDataLength == ((BytesPerScanline + 1) * IHDR_Height)))
-    {
-        return(qfalse);
-    }
-
-    /*
-     *  Unfilter the image.
-     */
-
-    if(!UnfilterImage(DecompressedData, IHDR_Height, BytesPerScanline, BytesPerPixel))
-    {
-        return(qfalse);
-    }
-
-    /*
-     *  Set the working pointers to the beginning of the buffers.
-     */
-
-    OutPtr = OutBuffer;
-    DecompPtr = DecompressedData;
-
-    /*
-     *  Create the output image.
-     */
-
-    for(h = 0; h < IHDR_Height; h++)
-    {
-        /*
-         *  Count the pixels on the scanline for those multipixel bytes
-         */
-
-        uint32_t CurrPixel;
-  
-        /*
-         *  skip FilterType
-         */
-
-        DecompPtr++;
-
-        /*
-         *  Reset the pixel count.
-         */
-
-        CurrPixel = 0;
-
-        for(w = 0; w < (BytesPerScanline / BytesPerPixel); w++)
-        {
-	    if(PixelsPerByte > 1)
-	    {
-                uint8_t  Mask;
-                uint32_t Shift;
-		uint8_t  SinglePixel;
-
-                for(p = 0; p < PixelsPerByte; p++)
-                {
-                    if(CurrPixel < IHDR_Width)
-                    {
-                        Mask  = (1 << IHDR->BitDepth) - 1;
-                        Shift = (PixelsPerByte - 1 - p) * IHDR->BitDepth;
-
-                        SinglePixel = ((DecompPtr[0] & (Mask << Shift)) >> Shift);
-
-			if(!ConvertPixel(IHDR, OutPtr, &SinglePixel, HasTransparentColour, TransparentColour, OutPal))
-			{
-			    return(qfalse);
-			}
-
-                        OutPtr += Q3IMAGE_BYTESPERPIXEL;
-                        CurrPixel++;
-                    }
-                }
-	    
-	    }
-	    else
-	    {
-		if(!ConvertPixel(IHDR, OutPtr, DecompPtr, HasTransparentColour, TransparentColour, OutPal))
-		{
-		    return(qfalse);
-		}
-  
-
-                OutPtr += Q3IMAGE_BYTESPERPIXEL;
-	    }
-
-            DecompPtr += BytesPerPixel;
-        }
-    }
-
-    return(qtrue);
-}
-
-/*
- *  Decode an interlaced image.
- */
-
-static qboolean DecodeImageInterlaced(struct PNG_Chunk_IHDR *IHDR,
-                                      byte                  *OutBuffer, 
-                                      uint8_t               *DecompressedData,
-                                      uint32_t               DecompressedDataLength,
-                                      qboolean               HasTransparentColour,
-                                      uint8_t               *TransparentColour,
-                                      uint8_t               *OutPal)
-{
-    uint32_t IHDR_Width;
-    uint32_t IHDR_Height;
-    uint32_t BytesPerScanline[PNG_Adam7_NumPasses], BytesPerPixel, PixelsPerByte;
-    uint32_t PassWidth[PNG_Adam7_NumPasses], PassHeight[PNG_Adam7_NumPasses];
-    uint32_t WSkip[PNG_Adam7_NumPasses], WOffset[PNG_Adam7_NumPasses], HSkip[PNG_Adam7_NumPasses], HOffset[PNG_Adam7_NumPasses];
-    uint32_t w, h, p, a;
-    byte *OutPtr;
-    uint8_t *DecompPtr;
-    uint32_t TargetLength;
-
-    /*
-     *  input verification
-     */
-
-    if(!(IHDR && OutBuffer && DecompressedData && DecompressedDataLength && TransparentColour && OutPal))
-    {
-	return(qfalse);
-    }
-
-    /*
-     *  byte swapping
-     */
-
-    IHDR_Width  = BigLong(IHDR->Width);
-    IHDR_Height = BigLong(IHDR->Height);
-
-    /*
-     *  Skip and Offset for the passes.
-     */
-
-    WSkip[0]   = 8;
-    WOffset[0] = 0;
-    HSkip[0]   = 8;
-    HOffset[0] = 0;
-
-    WSkip[1]   = 8;
-    WOffset[1] = 4;
-    HSkip[1]   = 8;
-    HOffset[1] = 0;
-
-    WSkip[2]   = 4;
-    WOffset[2] = 0;
-    HSkip[2]   = 8;
-    HOffset[2] = 4;
-
-    WSkip[3]   = 4;
-    WOffset[3] = 2;
-    HSkip[3]   = 4;
-    HOffset[3] = 0;
-
-    WSkip[4]   = 2;
-    WOffset[4] = 0;
-    HSkip[4]   = 4;
-    HOffset[4] = 2;
-
-    WSkip[5]   = 2;
-    WOffset[5] = 1;
-    HSkip[5]   = 2;
-    HOffset[5] = 0;
-
-    WSkip[6]   = 1;
-    WOffset[6] = 0;
-    HSkip[6]   = 2;
-    HOffset[6] = 1;
-
-    /*
-     *  Calculate the sizes of the passes.
-     */
-
-    PassWidth[0]  = (IHDR_Width  + 7) / 8;
-    PassHeight[0] = (IHDR_Height + 7) / 8;
-
-    PassWidth[1]  = (IHDR_Width  + 3) / 8;
-    PassHeight[1] = (IHDR_Height + 7) / 8;
-
-    PassWidth[2]  = (IHDR_Width  + 3) / 4;
-    PassHeight[2] = (IHDR_Height + 3) / 8;
-
-    PassWidth[3]  = (IHDR_Width  + 1) / 4;
-    PassHeight[3] = (IHDR_Height + 3) / 4;
-
-    PassWidth[4]  = (IHDR_Width  + 1) / 2;
-    PassHeight[4] = (IHDR_Height + 1) / 4;
-
-    PassWidth[5]  = (IHDR_Width  + 0) / 2;
-    PassHeight[5] = (IHDR_Height + 1) / 2;
-
-    PassWidth[6]  = (IHDR_Width  + 0) / 1;
-    PassHeight[6] = (IHDR_Height + 0) / 2;
-
-    /*
-     *  information for un-filtering
-     */
-
-    switch(IHDR->ColourType)
-    {
-        case PNG_ColourType_Grey :
-        {
-            switch(IHDR->BitDepth)
-            {
-                case PNG_BitDepth_1 :
-                case PNG_BitDepth_2 :
-                case PNG_BitDepth_4 :
-                {
-                    BytesPerPixel    = 1;
-                    PixelsPerByte    = 8 / IHDR->BitDepth;
-
-                    break;
-                }
-
-                case PNG_BitDepth_8  :
-                case PNG_BitDepth_16 :
-                {
-                    BytesPerPixel    = (IHDR->BitDepth / 8) * PNG_NumColourComponents_Grey;
-                    PixelsPerByte    = 1;
-
-                    break;
-                }
-
-                default :
-                {
-                    return(qfalse);
-                }
-            }
-  
-            break;
-        }
-  
-        case PNG_ColourType_True :
-        {
-            switch(IHDR->BitDepth)
-            {
-                case PNG_BitDepth_8  :
-                case PNG_BitDepth_16 :
-                {
-                    BytesPerPixel    = (IHDR->BitDepth / 8) * PNG_NumColourComponents_True;
-                    PixelsPerByte    = 1;
-
-                    break;
-                }
-     
-                default :
-                {
-                    return(qfalse);
-                }
-            }
-  
-            break;
-        }
-
-        case PNG_ColourType_Indexed :
-        {
-            switch(IHDR->BitDepth)
-            {
-                case PNG_BitDepth_1 :
-                case PNG_BitDepth_2 :
-                case PNG_BitDepth_4 :
-                {
-                    BytesPerPixel    = 1;
-                    PixelsPerByte    = 8 / IHDR->BitDepth;
-
-                    break;
-                }
-
-                case PNG_BitDepth_8 :
-                {
-                    BytesPerPixel    = PNG_NumColourComponents_Indexed;
-                    PixelsPerByte    = 1;
-
-                    break;
-                }
-         
-                default :
-                {
-                    return(qfalse);
-                }
-            }
-  
-            break;
-        }
-
-        case PNG_ColourType_GreyAlpha :
-        {
-            switch(IHDR->BitDepth)
-            {
-                case PNG_BitDepth_8 :
-                case PNG_BitDepth_16 :
-                {
-                    BytesPerPixel    = (IHDR->BitDepth / 8) * PNG_NumColourComponents_GreyAlpha;
-                    PixelsPerByte    = 1;
-
-                    break;
-                }
-     
-                default :
-                {
-                    return(qfalse);
-                }
-            }
-  
-            break;
-        }
-
-        case PNG_ColourType_TrueAlpha :
-        {
-            switch(IHDR->BitDepth)
-            {
-                case PNG_BitDepth_8 :
-                case PNG_BitDepth_16 :
-                {
-                    BytesPerPixel    = (IHDR->BitDepth / 8) * PNG_NumColourComponents_TrueAlpha;
-                    PixelsPerByte    = 1;
-
-                    break;
-                }
-    
-                default :
-                {
-                    return(qfalse);
-                }
-            }
-
-            break;
-        }
-
-        default :
-        {
-            return(qfalse);
-        }
-    }
-
-    /*
-     *  Calculate the size of the scanlines per pass
-     */
-
-    for(a = 0; a < PNG_Adam7_NumPasses; a++)
-    {
-	BytesPerScanline[a] = (PassWidth[a] * BytesPerPixel + (PixelsPerByte - 1)) / PixelsPerByte;
-    }
-
-    /*
-     *  Calculate the size of all passes
-     */
-
-    TargetLength = 0;
-
-    for(a = 0; a < PNG_Adam7_NumPasses; a++)
-    {
-	TargetLength += ((BytesPerScanline[a] + (BytesPerScanline[a] ? 1 : 0)) * PassHeight[a]);
-    }
-
-    /*
-     *  Check if we have enough data for the whole image.
-     */
-
-    if(!(DecompressedDataLength == TargetLength))
-    {
-        return(qfalse);
-    }
-
-    /*
-     *  Unfilter the image.
-     */
-
-    DecompPtr = DecompressedData;
-
-    for(a = 0; a < PNG_Adam7_NumPasses; a++)
-    {
-        if(!UnfilterImage(DecompPtr, PassHeight[a], BytesPerScanline[a], BytesPerPixel))
-        {
-            return(qfalse);
-        }
-	
-	DecompPtr += ((BytesPerScanline[a] + (BytesPerScanline[a] ? 1 : 0)) * PassHeight[a]);
-    }
-
-    /*
-     *  Set the working pointers to the beginning of the buffers.
-     */
-
-    DecompPtr = DecompressedData;
-
-    /*
-     *  Create the output image.
-     */
-
-    for(a = 0; a < PNG_Adam7_NumPasses; a++)
-    {
-        for(h = 0; h < PassHeight[a]; h++)
-        {
-            /*
-             *  Count the pixels on the scanline for those multipixel bytes
-             */
-
-            uint32_t CurrPixel;
-
-            /*
-             *  skip FilterType
-             */
-
-            DecompPtr++;
-
-            /*
-             *  Reset the pixel count.
-             */
-
-            CurrPixel = 0;
-
-            for(w = 0; w < (BytesPerScanline[a] / BytesPerPixel); w++)
-            {
-        	if(PixelsPerByte > 1)
-	        {
-                    uint8_t  Mask;
-                    uint32_t Shift;
-		    uint8_t  SinglePixel;
-
-                    for(p = 0; p < PixelsPerByte; p++)
-                    {
-                        if(CurrPixel < PassWidth[a])
-                        {
-                            Mask  = (1 << IHDR->BitDepth) - 1;
-                            Shift = (PixelsPerByte - 1 - p) * IHDR->BitDepth;
-
-                            SinglePixel = ((DecompPtr[0] & (Mask << Shift)) >> Shift);
-
-    			    OutPtr = OutBuffer + (((((h * HSkip[a]) + HOffset[a]) * IHDR_Width) + ((CurrPixel * WSkip[a]) + WOffset[a])) * Q3IMAGE_BYTESPERPIXEL);
-
-    			    if(!ConvertPixel(IHDR, OutPtr, &SinglePixel, HasTransparentColour, TransparentColour, OutPal))
-			    {
-			        return(qfalse);
-			    }
-
-                            CurrPixel++;
-                        }
-                    }
-	    
-	        }
-    	        else
-	        {
-	    	    OutPtr = OutBuffer + (((((h * HSkip[a]) + HOffset[a]) * IHDR_Width) + ((w * WSkip[a]) + WOffset[a])) * Q3IMAGE_BYTESPERPIXEL);
-
-		    if(!ConvertPixel(IHDR, OutPtr, DecompPtr, HasTransparentColour, TransparentColour, OutPal))
-		    {
-		        return(qfalse);
-		    }
-	        }
-
-                DecompPtr += BytesPerPixel;
-            }
-        }
-    }
-
-    return(qtrue);
-}
-
-/*
- *  The PNG loader
- */
-
-static void LoadPNG(const char *name, byte **pic, int *width, int *height)
-{
-    struct BufferedFile *ThePNG;
-    byte *OutBuffer;
-    uint8_t *Signature;
-    struct PNG_ChunkHeader *CH;
-    uint32_t ChunkHeaderLength;
-    uint32_t ChunkHeaderType;
-    struct PNG_Chunk_IHDR *IHDR;
-    uint32_t IHDR_Width;
-    uint32_t IHDR_Height;
-    PNG_ChunkCRC *CRC;
-    uint8_t *InPal;
-    uint8_t *DecompressedData;
-    uint32_t DecompressedDataLength;
-    uint32_t i;
-
-    /*
-     *  palette with 256 RGBA entries
-     */
-
-    uint8_t OutPal[1024];
-
-    /*
-     *  transparent colour from the tRNS chunk
-     */
-
-    qboolean HasTransparentColour = qfalse;
-    uint8_t TransparentColour[6] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
-
-    /*
-     *  input verification
-     */
-
-    if(!(name && pic))
-    {
-        return;
-    }
-
-    /*
-     *  Zero out return values.
-     */
-
-    *pic = NULL;
-
-    if(width)
-    {
-        *width = 0;
-    }
-
-    if(height)
-    {
-        *height = 0;
-    }
-
-    /*
-     *  Read the file.
-     */
-
-    ThePNG = ReadBufferedFile(name);
-    if(!ThePNG)
-    {
-        return;
-    }           
-
-    /*
-     *  Read the siganture of the file.
-     */
-
-    Signature = BufferedFileRead(ThePNG, PNG_Signature_Size);
-    if(!Signature)
-    {
-        CloseBufferedFile(ThePNG);
- 
-        return;
-    }
- 
-    /*
-     *  Is it a PNG?
-     */
-
-    if(memcmp(Signature, PNG_Signature, PNG_Signature_Size))
-    {
-        CloseBufferedFile(ThePNG);
- 
-        return; 
-    }
-
-    /*
-     *  Read the first chunk-header.
-     */
-
-    CH = BufferedFileRead(ThePNG, PNG_ChunkHeader_Size);
-    if(!CH)
-    {
-        CloseBufferedFile(ThePNG);
- 
-        return; 
-    }
-
-    /*
-     *  PNG multi-byte types are in Big Endian
-     */
-
-    ChunkHeaderLength = BigLong(CH->Length);
-    ChunkHeaderType   = BigLong(CH->Type);
-
-    /*
-     *  Check if the first chunk is an IHDR.
-     */
-
-    if(!((ChunkHeaderType == PNG_ChunkType_IHDR) && (ChunkHeaderLength == PNG_Chunk_IHDR_Size)))
-    {
-        CloseBufferedFile(ThePNG);
- 
-        return; 
-    }
-
-    /*
-     *  Read the IHDR.
-     */ 
-
-    IHDR = BufferedFileRead(ThePNG, PNG_Chunk_IHDR_Size);
-    if(!IHDR)
-    {
-        CloseBufferedFile(ThePNG);
- 
-        return; 
-    }
-
-    /*
-     *  Read the CRC for IHDR
-     */
-
-    CRC = BufferedFileRead(ThePNG, PNG_ChunkCRC_Size);
-    if(!CRC)
-    {
-        CloseBufferedFile(ThePNG);
- 
-        return; 
-    }
- 
-    /*
-     *  Here we could check the CRC if we wanted to.
-     */
- 
-    /*
-     *  multi-byte type swapping
-     */
-
-    IHDR_Width  = BigLong(IHDR->Width);
-    IHDR_Height = BigLong(IHDR->Height);
- 
-    /*
-     *  Check if Width and Height are valid.
-     */
-
-    if(!((IHDR_Width > 0) && (IHDR_Height > 0)))
-    {
-        CloseBufferedFile(ThePNG);
- 
-        return; 
-    }
-
-    /*
-     *  Do we need to check if the dimensions of the image are valid for Quake3?
-     */
-
-    /*
-     *  Check if CompressionMethod and FilterMethod are valid.
-     */
-
-    if(!((IHDR->CompressionMethod == PNG_CompressionMethod_0) && (IHDR->FilterMethod == PNG_FilterMethod_0)))
-    {
-        CloseBufferedFile(ThePNG);
- 
-        return; 
-    }
-
-    /*
-     *  Check if InterlaceMethod is valid.
-     */
-
-    if(!((IHDR->InterlaceMethod == PNG_InterlaceMethod_NonInterlaced)  || (IHDR->InterlaceMethod == PNG_InterlaceMethod_Interlaced)))
-    {
-        CloseBufferedFile(ThePNG);
- 
-        return;
-    }
-
-    /*
-     *  Read palette for an indexed image.
-     */
-
-    if(IHDR->ColourType == PNG_ColourType_Indexed)
-    {
-        /*
-         *  We need the palette first.
-         */
-
-        if(!FindChunk(ThePNG, PNG_ChunkType_PLTE))
-        {
-            CloseBufferedFile(ThePNG);
-  
-            return;
-        }
-
-        /*
-         *  Read the chunk-header.
-         */
-
-        CH = BufferedFileRead(ThePNG, PNG_ChunkHeader_Size);
-        if(!CH)
-        {
-            CloseBufferedFile(ThePNG);
-   
-            return; 
-        }
-
-        /*
-         *  PNG multi-byte types are in Big Endian
-         */
-
-        ChunkHeaderLength = BigLong(CH->Length);
-        ChunkHeaderType   = BigLong(CH->Type);
-  
-        /*
-         *  Check if the chunk is an PLTE.
-         */
-
-        if(!(ChunkHeaderType == PNG_ChunkType_PLTE))
-        {
-            CloseBufferedFile(ThePNG);
-   
-            return; 
-        }
-
-        /*
-         *  Check if Length is divisible by 3
-         */
-
-        if(ChunkHeaderLength % 3)
-        {
-            CloseBufferedFile(ThePNG);
-   
-            return;   
-        }
-
-        /*
-         *  Read the raw palette data
-         */
-
-        InPal = BufferedFileRead(ThePNG, ChunkHeaderLength);
-        if(!InPal)
-        {
-            CloseBufferedFile(ThePNG);
-   
-            return; 
-        }
-   
-        /*
-         *  Read the CRC for the palette
-         */
-
-        CRC = BufferedFileRead(ThePNG, PNG_ChunkCRC_Size);
-        if(!CRC)
-        {
-            CloseBufferedFile(ThePNG);
- 
-            return; 
-        }
-
-        /*
-         *  Set some default values.
-         */
-
-        for(i = 0; i < 256; i++)
-        {
-            OutPal[i * Q3IMAGE_BYTESPERPIXEL + 0] = 0x00;
-            OutPal[i * Q3IMAGE_BYTESPERPIXEL + 1] = 0x00;
-            OutPal[i * Q3IMAGE_BYTESPERPIXEL + 2] = 0x00;
-            OutPal[i * Q3IMAGE_BYTESPERPIXEL + 3] = 0xFF;  
-        }
-
-        /*
-         *  Convert to the Quake3 RGBA-format.
-         */
-
-        for(i = 0; i < (ChunkHeaderLength / 3); i++)
-        {
-            OutPal[i * Q3IMAGE_BYTESPERPIXEL + 0] = InPal[i*3+0];
-            OutPal[i * Q3IMAGE_BYTESPERPIXEL + 1] = InPal[i*3+1];
-            OutPal[i * Q3IMAGE_BYTESPERPIXEL + 2] = InPal[i*3+2];
-            OutPal[i * Q3IMAGE_BYTESPERPIXEL + 3] = 0xFF;
-        }
-    }
-
-    /*
-     *  transparency information is sometimes stored in an tRNS chunk
-     */
-
-    /*
-     *  Let's see if there is a tRNS chunk
-     */
-
-    if(FindChunk(ThePNG, PNG_ChunkType_tRNS))
-    {
-        uint8_t *Trans;
-
-        /*
-         *  Read the chunk-header.
-         */
-
-        CH = BufferedFileRead(ThePNG, PNG_ChunkHeader_Size);
-        if(!CH)
-        {
-            CloseBufferedFile(ThePNG);
- 
-            return; 
-        }
-
-        /*
-         *  PNG multi-byte types are in Big Endian
-         */
-
-        ChunkHeaderLength = BigLong(CH->Length);
-        ChunkHeaderType   = BigLong(CH->Type);
-
-        /*
-         *  Check if the chunk is an tRNS.
-         */
-
-        if(!(ChunkHeaderType == PNG_ChunkType_tRNS))
-        {
-            CloseBufferedFile(ThePNG);
- 
-            return; 
-        }
-
-        /*
-         *  Read the transparency information.
-         */
-
-        Trans = BufferedFileRead(ThePNG, ChunkHeaderLength);
-        if(!Trans)
-        {
-            CloseBufferedFile(ThePNG);
- 
-            return;  
-        }
-
-        /*
-         *  Read the CRC.
-         */
-
-        CRC = BufferedFileRead(ThePNG, PNG_ChunkCRC_Size);
-        if(!CRC)
-        {
-            CloseBufferedFile(ThePNG);
-  
-            return; 
-        }
- 
-        /*
-         *  Only for Grey, True and Indexed ColourType should tRNS exist.
-         */
-
-        switch(IHDR->ColourType)
-        {
-            case PNG_ColourType_Grey :
-            {
-                if(!ChunkHeaderLength == 2)
-                {
-                    CloseBufferedFile(ThePNG);
-  
-                    return;    
-                }
-   
-                HasTransparentColour = qtrue;
-   
-		/*
-		 *  Grey can have one colour which is completely transparent.
-		 *  This colour is always stored in 16 bits.
-		 */
-
-                TransparentColour[0] = Trans[0];
-                TransparentColour[1] = Trans[1];
-   
-                break;
-            }
-   
-            case PNG_ColourType_True :
-            {
-                if(!ChunkHeaderLength == 6)
-                {
-                    CloseBufferedFile(ThePNG);
-  
-                    return;    
-                }
-   
-                HasTransparentColour = qtrue;
-
-		/*
-		 *  True can have one colour which is completely transparent.
-		 *  This colour is always stored in 16 bits.
-		 */
-
-                TransparentColour[0] = Trans[0];
-                TransparentColour[1] = Trans[1];
-                TransparentColour[2] = Trans[2];
-                TransparentColour[3] = Trans[3];
-                TransparentColour[4] = Trans[4];
-                TransparentColour[5] = Trans[5];
-   
-                break;
-            }
-   
-            case PNG_ColourType_Indexed :
-            {
-                /*
-		 *  Maximum of 256 one byte transparency entries.
-		 */
-		
-		if(ChunkHeaderLength > 256)
-                {
-                    CloseBufferedFile(ThePNG);
-  
-                    return;    
-                }
-
-                HasTransparentColour = qtrue;
-
-                /*
-                 *  alpha values for palette entries
-                 */
-
-                for(i = 0; i < ChunkHeaderLength; i++)
-                {
-                    OutPal[i * Q3IMAGE_BYTESPERPIXEL + 3] = Trans[i];
-                }
-
-                break;
-            }
-  
-            /*
-             *  All other ColourTypes should not have tRNS chunks
-             */
-
-            default :
-            {
-                CloseBufferedFile(ThePNG);
-  
-                return;
-            }
-        } 
-    }
-
-    /*
-     *  Rewind to the start of the file.
-     */
-
-    if(!BufferedFileRewind(ThePNG, -1))
-    {
-        CloseBufferedFile(ThePNG);
- 
-        return; 
-    }
- 
-    /*
-     *  Skip the signature
-     */
-
-    if(!BufferedFileSkip(ThePNG, PNG_Signature_Size))
-    {
-        CloseBufferedFile(ThePNG);
- 
-        return; 
-    }
-
-    /*
-     *  Decompress all IDAT chunks
-     */
-
-    DecompressedDataLength = DecompressIDATs(ThePNG, &DecompressedData);
-    if(!(DecompressedDataLength && DecompressedData))
-    {
-        CloseBufferedFile(ThePNG);
- 
-        return;
-    }
-
-    /*
-     *  Allocate output buffer.
-     */
-
-    OutBuffer = ri.Malloc(IHDR_Width * IHDR_Height * Q3IMAGE_BYTESPERPIXEL); 
-    if(!OutBuffer)
-    {
-        ri.Free(DecompressedData); 
-        CloseBufferedFile(ThePNG);
- 
-        return;  
-    }
-
-    /*
-     *  Interlaced and Non-interlaced images need to be handled differently.
-     */
-
-    switch(IHDR->InterlaceMethod)
-    {
-	case PNG_InterlaceMethod_NonInterlaced :
-	{
-	    if(!DecodeImageNonInterlaced(IHDR, OutBuffer, DecompressedData, DecompressedDataLength, HasTransparentColour, TransparentColour, OutPal))
-	    {
-		ri.Free(OutBuffer); 
-    		ri.Free(DecompressedData); 
-    		CloseBufferedFile(ThePNG);
-
-		return;
-	    }
-	
-	    break;
-	}
-	
-	case PNG_InterlaceMethod_Interlaced :
-	{
-	    if(!DecodeImageInterlaced(IHDR, OutBuffer, DecompressedData, DecompressedDataLength, HasTransparentColour, TransparentColour, OutPal))
-	    {
-		ri.Free(OutBuffer); 
-    		ri.Free(DecompressedData); 
-    		CloseBufferedFile(ThePNG);
-
-		return;
-	    }
-	
-	    break;
-	}
-    
-	default :
-	{
-	    ri.Free(OutBuffer); 
-    	    ri.Free(DecompressedData); 
-    	    CloseBufferedFile(ThePNG);
-
-	    return;
-	}
-    }
-
-    /*
-     *  update the pointer to the image data
-     */
-
-    *pic = OutBuffer;
- 
-    /*
-     *  Fill width and height.
-     */
-
-    if(width)
-    {
-        *width = IHDR_Width;
-    }
-
-    if(height)
-    {
-        *height = IHDR_Height;
-    }
-
-    /*
-     *  DecompressedData is not needed anymore.
-     */
-
-    ri.Free(DecompressedData); 
-
-    /*
-     *  We have all data, so close the file.
-     */
-
-    CloseBufferedFile(ThePNG);
-}
-
 //===================================================================
 
 typedef struct
@@ -4386,12 +795,12 @@ typedef struct
 // when there are multiple images of different formats available
 static imageExtToLoaderMap_t imageLoaders[ ] =
 {
-	{ "tga",  LoadTGA },
-	{ "jpg",  LoadJPG },
-	{ "jpeg", LoadJPG },
-	{ "png",  LoadPNG },
-	{ "pcx",  LoadPCX32 },
-	{ "bmp",  LoadBMP }
+	{ "tga",  R_LoadTGA },
+	{ "jpg",  R_LoadJPG },
+	{ "jpeg", R_LoadJPG },
+	{ "png",  R_LoadPNG },
+	{ "pcx",  R_LoadPCX },
+	{ "bmp",  R_LoadBMP }
 };
 
 static int numImageLoaders = sizeof( imageLoaders ) /
diff --git a/src/renderer/tr_image_bmp.c b/src/renderer/tr_image_bmp.c
new file mode 100644
index 00000000..190b878f
--- /dev/null
+++ b/src/renderer/tr_image_bmp.c
@@ -0,0 +1,236 @@
+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+
+This file is part of Quake III Arena source code.
+
+Quake III Arena source code 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.
+
+Quake III Arena source code 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 Quake III Arena source code; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+
+#include "tr_local.h"
+
+typedef struct
+{
+	char id[2];
+	unsigned fileSize;
+	unsigned reserved0;
+	unsigned bitmapDataOffset;
+	unsigned bitmapHeaderSize;
+	unsigned width;
+	unsigned height;
+	unsigned short planes;
+	unsigned short bitsPerPixel;
+	unsigned compression;
+	unsigned bitmapDataSize;
+	unsigned hRes;
+	unsigned vRes;
+	unsigned colors;
+	unsigned importantColors;
+	unsigned char palette[256][4];
+} BMPHeader_t;
+
+void R_LoadBMP( const char *name, byte **pic, int *width, int *height )
+{
+	int		columns, rows;
+	unsigned	numPixels;
+	byte	*pixbuf;
+	int		row, column;
+	byte	*buf_p;
+	byte	*end;
+	byte	*buffer = NULL;
+	int		length;
+	BMPHeader_t bmpHeader;
+	byte		*bmpRGBA;
+
+	*pic = NULL;
+
+	if(width)
+		*width = 0;
+
+	if(height)
+		*height = 0;
+
+	//
+	// load the file
+	//
+	length = ri.FS_ReadFile( ( char * ) name, (void **)&buffer);
+	if (!buffer || length < 0) {
+		return;
+	}
+
+	if (length < 54)
+	{
+		ri.Error( ERR_DROP, "LoadBMP: header too short (%s)\n", name );
+	}
+
+	buf_p = buffer;
+	end = buffer + length;
+
+	bmpHeader.id[0] = *buf_p++;
+	bmpHeader.id[1] = *buf_p++;
+	bmpHeader.fileSize = LittleLong( * ( int * ) buf_p );
+	buf_p += 4;
+	bmpHeader.reserved0 = LittleLong( * ( int * ) buf_p );
+	buf_p += 4;
+	bmpHeader.bitmapDataOffset = LittleLong( * ( int * ) buf_p );
+	buf_p += 4;
+	bmpHeader.bitmapHeaderSize = LittleLong( * ( int * ) buf_p );
+	buf_p += 4;
+	bmpHeader.width = LittleLong( * ( int * ) buf_p );
+	buf_p += 4;
+	bmpHeader.height = LittleLong( * ( int * ) buf_p );
+	buf_p += 4;
+	bmpHeader.planes = LittleShort( * ( short * ) buf_p );
+	buf_p += 2;
+	bmpHeader.bitsPerPixel = LittleShort( * ( short * ) buf_p );
+	buf_p += 2;
+	bmpHeader.compression = LittleLong( * ( int * ) buf_p );
+	buf_p += 4;
+	bmpHeader.bitmapDataSize = LittleLong( * ( int * ) buf_p );
+	buf_p += 4;
+	bmpHeader.hRes = LittleLong( * ( int * ) buf_p );
+	buf_p += 4;
+	bmpHeader.vRes = LittleLong( * ( int * ) buf_p );
+	buf_p += 4;
+	bmpHeader.colors = LittleLong( * ( int * ) buf_p );
+	buf_p += 4;
+	bmpHeader.importantColors = LittleLong( * ( int * ) buf_p );
+	buf_p += 4;
+
+	if ( bmpHeader.bitsPerPixel == 8 )
+	{
+		if (buf_p + sizeof(bmpHeader.palette) > end)
+			ri.Error( ERR_DROP, "LoadBMP: header too short (%s)\n", name );
+
+		Com_Memcpy( bmpHeader.palette, buf_p, sizeof( bmpHeader.palette ) );
+		buf_p += sizeof(bmpHeader.palette);
+	}
+
+	if (buffer + bmpHeader.bitmapDataOffset > end)
+	{
+		ri.Error( ERR_DROP, "LoadBMP: invalid offset value in header (%s)\n", name );
+	}
+
+	buf_p = buffer + bmpHeader.bitmapDataOffset;
+
+	if ( bmpHeader.id[0] != 'B' && bmpHeader.id[1] != 'M' ) 
+	{
+		ri.Error( ERR_DROP, "LoadBMP: only Windows-style BMP files supported (%s)\n", name );
+	}
+	if ( bmpHeader.fileSize != length )
+	{
+		ri.Error( ERR_DROP, "LoadBMP: header size does not match file size (%u vs. %u) (%s)\n", bmpHeader.fileSize, length, name );
+	}
+	if ( bmpHeader.compression != 0 )
+	{
+		ri.Error( ERR_DROP, "LoadBMP: only uncompressed BMP files supported (%s)\n", name );
+	}
+	if ( bmpHeader.bitsPerPixel < 8 )
+	{
+		ri.Error( ERR_DROP, "LoadBMP: monochrome and 4-bit BMP files not supported (%s)\n", name );
+	}
+
+	switch ( bmpHeader.bitsPerPixel )
+	{
+		case 8:
+		case 16:
+		case 24:
+		case 32:
+			break;
+		default:
+			ri.Error( ERR_DROP, "LoadBMP: illegal pixel_size '%hu' in file '%s'\n", bmpHeader.bitsPerPixel, name );
+			break;
+	}
+
+	columns = bmpHeader.width;
+	rows = bmpHeader.height;
+	if ( rows < 0 )
+		rows = -rows;
+	numPixels = columns * rows;
+
+	if(columns <= 0 || !rows || numPixels > 0x1FFFFFFF // 4*1FFFFFFF == 0x7FFFFFFC < 0x7FFFFFFF
+	    || ((numPixels * 4) / columns) / 4 != rows)
+	{
+	  ri.Error (ERR_DROP, "LoadBMP: %s has an invalid image size\n", name);
+	}
+	if(buf_p + numPixels*bmpHeader.bitsPerPixel/8 > end)
+	{
+	  ri.Error (ERR_DROP, "LoadBMP: file truncated (%s)\n", name);
+	}
+
+	if ( width ) 
+		*width = columns;
+	if ( height )
+		*height = rows;
+
+	bmpRGBA = ri.Malloc( numPixels * 4 );
+	*pic = bmpRGBA;
+
+
+	for ( row = rows-1; row >= 0; row-- )
+	{
+		pixbuf = bmpRGBA + row*columns*4;
+
+		for ( column = 0; column < columns; column++ )
+		{
+			unsigned char red, green, blue, alpha;
+			int palIndex;
+			unsigned short shortPixel;
+
+			switch ( bmpHeader.bitsPerPixel )
+			{
+			case 8:
+				palIndex = *buf_p++;
+				*pixbuf++ = bmpHeader.palette[palIndex][2];
+				*pixbuf++ = bmpHeader.palette[palIndex][1];
+				*pixbuf++ = bmpHeader.palette[palIndex][0];
+				*pixbuf++ = 0xff;
+				break;
+			case 16:
+				shortPixel = * ( unsigned short * ) pixbuf;
+				pixbuf += 2;
+				*pixbuf++ = ( shortPixel & ( 31 << 10 ) ) >> 7;
+				*pixbuf++ = ( shortPixel & ( 31 << 5 ) ) >> 2;
+				*pixbuf++ = ( shortPixel & ( 31 ) ) << 3;
+				*pixbuf++ = 0xff;
+				break;
+
+			case 24:
+				blue = *buf_p++;
+				green = *buf_p++;
+				red = *buf_p++;
+				*pixbuf++ = red;
+				*pixbuf++ = green;
+				*pixbuf++ = blue;
+				*pixbuf++ = 255;
+				break;
+			case 32:
+				blue = *buf_p++;
+				green = *buf_p++;
+				red = *buf_p++;
+				alpha = *buf_p++;
+				*pixbuf++ = red;
+				*pixbuf++ = green;
+				*pixbuf++ = blue;
+				*pixbuf++ = alpha;
+				break;
+			}
+		}
+	}
+
+	ri.FS_FreeFile( buffer );
+
+}
diff --git a/src/renderer/tr_image_jpg.c b/src/renderer/tr_image_jpg.c
new file mode 100644
index 00000000..8a9bbc4e
--- /dev/null
+++ b/src/renderer/tr_image_jpg.c
@@ -0,0 +1,494 @@
+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+
+This file is part of Quake III Arena source code.
+
+Quake III Arena source code 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.
+
+Quake III Arena source code 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 Quake III Arena source code; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+
+#include "tr_local.h"
+
+/*
+ * Include file for users of JPEG library.
+ * You will need to have included system headers that define at least
+ * the typedefs FILE and size_t before you can include jpeglib.h.
+ * (stdio.h is sufficient on ANSI-conforming systems.)
+ * You may also wish to include "jerror.h".
+ */
+
+#define JPEG_INTERNALS
+#include "../jpeg-6/jpeglib.h"
+
+void R_LoadJPG( const char *filename, unsigned char **pic, int *width, int *height ) {
+  /* This struct contains the JPEG decompression parameters and pointers to
+   * working space (which is allocated as needed by the JPEG library).
+   */
+  struct jpeg_decompress_struct cinfo = {NULL};
+  /* We use our private extension JPEG error handler.
+   * Note that this struct must live as long as the main JPEG parameter
+   * struct, to avoid dangling-pointer problems.
+   */
+  /* This struct represents a JPEG error handler.  It is declared separately
+   * because applications often want to supply a specialized error handler
+   * (see the second half of this file for an example).  But here we just
+   * take the easy way out and use the standard error handler, which will
+   * print a message on stderr and call exit() if compression fails.
+   * Note that this struct must live as long as the main JPEG parameter
+   * struct, to avoid dangling-pointer problems.
+   */
+  struct jpeg_error_mgr jerr;
+  /* More stuff */
+  JSAMPARRAY buffer;		/* Output row buffer */
+  unsigned row_stride;		/* physical row width in output buffer */
+  unsigned pixelcount, memcount;
+  unsigned char *out;
+  int len;
+  byte	*fbuffer;
+  byte  *buf;
+
+  /* In this example we want to open the input file before doing anything else,
+   * so that the setjmp() error recovery below can assume the file is open.
+   * VERY IMPORTANT: use "b" option to fopen() if you are on a machine that
+   * requires it in order to read binary files.
+   */
+
+  len = ri.FS_ReadFile ( ( char * ) filename, (void **)&fbuffer);
+  if (!fbuffer || len < 0) {
+	return;
+  }
+
+  /* Step 1: allocate and initialize JPEG decompression object */
+
+  /* We have to set up the error handler first, in case the initialization
+   * step fails.  (Unlikely, but it could happen if you are out of memory.)
+   * This routine fills in the contents of struct jerr, and returns jerr's
+   * address which we place into the link field in cinfo.
+   */
+  cinfo.err = jpeg_std_error(&jerr);
+
+  /* Now we can initialize the JPEG decompression object. */
+  jpeg_create_decompress(&cinfo);
+
+  /* Step 2: specify data source (eg, a file) */
+
+  jpeg_mem_src(&cinfo, fbuffer, len);
+
+  /* Step 3: read file parameters with jpeg_read_header() */
+
+  (void) jpeg_read_header(&cinfo, TRUE);
+  /* We can ignore the return value from jpeg_read_header since
+   *   (a) suspension is not possible with the stdio data source, and
+   *   (b) we passed TRUE to reject a tables-only JPEG file as an error.
+   * See libjpeg.doc for more info.
+   */
+
+  /* Step 4: set parameters for decompression */
+
+  /* In this example, we don't need to change any of the defaults set by
+   * jpeg_read_header(), so we do nothing here.
+   */
+
+  /* Step 5: Start decompressor */
+
+  (void) jpeg_start_decompress(&cinfo);
+  /* We can ignore the return value since suspension is not possible
+   * with the stdio data source.
+   */
+
+  /* We may need to do some setup of our own at this point before reading
+   * the data.  After jpeg_start_decompress() we have the correct scaled
+   * output image dimensions available, as well as the output colormap
+   * if we asked for color quantization.
+   * In this example, we need to make an output work buffer of the right size.
+   */ 
+  /* JSAMPLEs per row in output buffer */
+
+  pixelcount = cinfo.output_width * cinfo.output_height;
+
+  if(!cinfo.output_width || !cinfo.output_height
+      || ((pixelcount * 4) / cinfo.output_width) / 4 != cinfo.output_height
+      || pixelcount > 0x1FFFFFFF || cinfo.output_components > 4) // 4*1FFFFFFF == 0x7FFFFFFC < 0x7FFFFFFF
+  {
+    ri.Error (ERR_DROP, "LoadJPG: %s has an invalid image size: %dx%d*4=%d, components: %d\n", filename,
+		    cinfo.output_width, cinfo.output_height, pixelcount * 4, cinfo.output_components);
+  }
+
+  memcount = pixelcount * 4;
+  row_stride = cinfo.output_width * cinfo.output_components;
+
+  out = ri.Malloc(memcount);
+
+  *width = cinfo.output_width;
+  *height = cinfo.output_height;
+
+  /* Step 6: while (scan lines remain to be read) */
+  /*           jpeg_read_scanlines(...); */
+
+  /* Here we use the library's state variable cinfo.output_scanline as the
+   * loop counter, so that we don't have to keep track ourselves.
+   */
+  while (cinfo.output_scanline < cinfo.output_height) {
+    /* jpeg_read_scanlines expects an array of pointers to scanlines.
+     * Here the array is only one element long, but you could ask for
+     * more than one scanline at a time if that's more convenient.
+     */
+	buf = ((out+(row_stride*cinfo.output_scanline)));
+	buffer = &buf;
+    (void) jpeg_read_scanlines(&cinfo, buffer, 1);
+  }
+  
+  buf = out;
+
+  // If we are processing an 8-bit JPEG (greyscale), we'll have to convert
+  // the greyscale values to RGBA.
+  if(cinfo.output_components == 1)
+  {
+  	int sindex = pixelcount, dindex = memcount;
+	unsigned char greyshade;
+
+	// Only pixelcount number of bytes have been written.
+	// Expand the color values over the rest of the buffer, starting
+	// from the end.
+	do
+	{
+		greyshade = buf[--sindex];
+
+		buf[--dindex] = 255;
+		buf[--dindex] = greyshade;
+		buf[--dindex] = greyshade;
+		buf[--dindex] = greyshade;
+	} while(sindex);
+  }
+  else
+  {
+	// clear all the alphas to 255
+	int	i;
+
+	for ( i = 3 ; i < memcount ; i+=4 )
+	{
+		buf[i] = 255;
+	}
+  }
+
+  *pic = out;
+
+  /* Step 7: Finish decompression */
+
+  (void) jpeg_finish_decompress(&cinfo);
+  /* We can ignore the return value since suspension is not possible
+   * with the stdio data source.
+   */
+
+  /* Step 8: Release JPEG decompression object */
+
+  /* This is an important step since it will release a good deal of memory. */
+  jpeg_destroy_decompress(&cinfo);
+
+  /* After finish_decompress, we can close the input file.
+   * Here we postpone it until after no more JPEG errors are possible,
+   * so as to simplify the setjmp error logic above.  (Actually, I don't
+   * think that jpeg_destroy can do an error exit, but why assume anything...)
+   */
+  ri.FS_FreeFile (fbuffer);
+
+  /* At this point you may want to check to see whether any corrupt-data
+   * warnings occurred (test whether jerr.pub.num_warnings is nonzero).
+   */
+
+  /* And we're done! */
+}
+
+
+/* Expanded data destination object for stdio output */
+
+typedef struct {
+  struct jpeg_destination_mgr pub; /* public fields */
+
+  byte* outfile;		/* target stream */
+  int	size;
+} my_destination_mgr;
+
+typedef my_destination_mgr * my_dest_ptr;
+
+
+/*
+ * Initialize destination --- called by jpeg_start_compress
+ * before any data is actually written.
+ */
+
+static void
+init_destination (j_compress_ptr cinfo)
+{
+  my_dest_ptr dest = (my_dest_ptr) cinfo->dest;
+
+  dest->pub.next_output_byte = dest->outfile;
+  dest->pub.free_in_buffer = dest->size;
+}
+
+
+/*
+ * Empty the output buffer --- called whenever buffer fills up.
+ *
+ * In typical applications, this should write the entire output buffer
+ * (ignoring the current state of next_output_byte & free_in_buffer),
+ * reset the pointer & count to the start of the buffer, and return TRUE
+ * indicating that the buffer has been dumped.
+ *
+ * In applications that need to be able to suspend compression due to output
+ * overrun, a FALSE return indicates that the buffer cannot be emptied now.
+ * In this situation, the compressor will return to its caller (possibly with
+ * an indication that it has not accepted all the supplied scanlines).  The
+ * application should resume compression after it has made more room in the
+ * output buffer.  Note that there are substantial restrictions on the use of
+ * suspension --- see the documentation.
+ *
+ * When suspending, the compressor will back up to a convenient restart point
+ * (typically the start of the current MCU). next_output_byte & free_in_buffer
+ * indicate where the restart point will be if the current call returns FALSE.
+ * Data beyond this point will be regenerated after resumption, so do not
+ * write it out when emptying the buffer externally.
+ */
+
+static boolean
+empty_output_buffer (j_compress_ptr cinfo)
+{
+  return TRUE;
+}
+
+/*
+ * Terminate destination --- called by jpeg_finish_compress
+ * after all data has been written.  Usually needs to flush buffer.
+ *
+ * NB: *not* called by jpeg_abort or jpeg_destroy; surrounding
+ * application must deal with any cleanup that should happen even
+ * for error exit.
+ */
+
+static int hackSize;
+
+static void
+term_destination (j_compress_ptr cinfo)
+{
+  my_dest_ptr dest = (my_dest_ptr) cinfo->dest;
+  size_t datacount = dest->size - dest->pub.free_in_buffer;
+  hackSize = datacount;
+}
+
+
+/*
+ * Prepare for output to a stdio stream.
+ * The caller must have already opened the stream, and is responsible
+ * for closing it after finishing compression.
+ */
+
+static void
+jpegDest (j_compress_ptr cinfo, byte* outfile, int size)
+{
+  my_dest_ptr dest;
+
+  /* The destination object is made permanent so that multiple JPEG images
+   * can be written to the same file without re-executing jpeg_stdio_dest.
+   * This makes it dangerous to use this manager and a different destination
+   * manager serially with the same JPEG object, because their private object
+   * sizes may be different.  Caveat programmer.
+   */
+  if (cinfo->dest == NULL) {	/* first time for this JPEG object? */
+    cinfo->dest = (struct jpeg_destination_mgr *)
+      (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT,
+				  sizeof(my_destination_mgr));
+  }
+
+  dest = (my_dest_ptr) cinfo->dest;
+  dest->pub.init_destination = init_destination;
+  dest->pub.empty_output_buffer = empty_output_buffer;
+  dest->pub.term_destination = term_destination;
+  dest->outfile = outfile;
+  dest->size = size;
+}
+
+void SaveJPG(char * filename, int quality, int image_width, int image_height, unsigned char *image_buffer) {
+  /* This struct contains the JPEG compression parameters and pointers to
+   * working space (which is allocated as needed by the JPEG library).
+   * It is possible to have several such structures, representing multiple
+   * compression/decompression processes, in existence at once.  We refer
+   * to any one struct (and its associated working data) as a "JPEG object".
+   */
+  struct jpeg_compress_struct cinfo;
+  /* This struct represents a JPEG error handler.  It is declared separately
+   * because applications often want to supply a specialized error handler
+   * (see the second half of this file for an example).  But here we just
+   * take the easy way out and use the standard error handler, which will
+   * print a message on stderr and call exit() if compression fails.
+   * Note that this struct must live as long as the main JPEG parameter
+   * struct, to avoid dangling-pointer problems.
+   */
+  struct jpeg_error_mgr jerr;
+  /* More stuff */
+  JSAMPROW row_pointer[1];	/* pointer to JSAMPLE row[s] */
+  int row_stride;		/* physical row width in image buffer */
+  unsigned char *out;
+
+  /* Step 1: allocate and initialize JPEG compression object */
+
+  /* We have to set up the error handler first, in case the initialization
+   * step fails.  (Unlikely, but it could happen if you are out of memory.)
+   * This routine fills in the contents of struct jerr, and returns jerr's
+   * address which we place into the link field in cinfo.
+   */
+  cinfo.err = jpeg_std_error(&jerr);
+  /* Now we can initialize the JPEG compression object. */
+  jpeg_create_compress(&cinfo);
+
+  /* Step 2: specify data destination (eg, a file) */
+  /* Note: steps 2 and 3 can be done in either order. */
+
+  /* Here we use the library-supplied code to send compressed data to a
+   * stdio stream.  You can also write your own code to do something else.
+   * VERY IMPORTANT: use "b" option to fopen() if you are on a machine that
+   * requires it in order to write binary files.
+   */
+  out = ri.Hunk_AllocateTempMemory(image_width*image_height*4);
+  jpegDest(&cinfo, out, image_width*image_height*4);
+
+  /* Step 3: set parameters for compression */
+
+  /* First we supply a description of the input image.
+   * Four fields of the cinfo struct must be filled in:
+   */
+  cinfo.image_width = image_width; 	/* image width and height, in pixels */
+  cinfo.image_height = image_height;
+  cinfo.input_components = 4;		/* # of color components per pixel */
+  cinfo.in_color_space = JCS_RGB; 	/* colorspace of input image */
+  /* Now use the library's routine to set default compression parameters.
+   * (You must set at least cinfo.in_color_space before calling this,
+   * since the defaults depend on the source color space.)
+   */
+  jpeg_set_defaults(&cinfo);
+  /* Now you can set any non-default parameters you wish to.
+   * Here we just illustrate the use of quality (quantization table) scaling:
+   */
+  jpeg_set_quality(&cinfo, quality, TRUE /* limit to baseline-JPEG values */);
+  /* If quality is set high, disable chroma subsampling */
+  if (quality >= 85) {
+    cinfo.comp_info[0].h_samp_factor = 1;
+    cinfo.comp_info[0].v_samp_factor = 1;
+  }
+
+  /* Step 4: Start compressor */
+
+  /* TRUE ensures that we will write a complete interchange-JPEG file.
+   * Pass TRUE unless you are very sure of what you're doing.
+   */
+  jpeg_start_compress(&cinfo, TRUE);
+
+  /* Step 5: while (scan lines remain to be written) */
+  /*           jpeg_write_scanlines(...); */
+
+  /* Here we use the library's state variable cinfo.next_scanline as the
+   * loop counter, so that we don't have to keep track ourselves.
+   * To keep things simple, we pass one scanline per call; you can pass
+   * more if you wish, though.
+   */
+  row_stride = image_width * 4;	/* JSAMPLEs per row in image_buffer */
+
+  while (cinfo.next_scanline < cinfo.image_height) {
+    /* jpeg_write_scanlines expects an array of pointers to scanlines.
+     * Here the array is only one element long, but you could pass
+     * more than one scanline at a time if that's more convenient.
+     */
+    row_pointer[0] = & image_buffer[((cinfo.image_height-1)*row_stride)-cinfo.next_scanline * row_stride];
+    (void) jpeg_write_scanlines(&cinfo, row_pointer, 1);
+  }
+
+  /* Step 6: Finish compression */
+
+  jpeg_finish_compress(&cinfo);
+  /* After finish_compress, we can close the output file. */
+  ri.FS_WriteFile( filename, out, hackSize );
+
+  ri.Hunk_FreeTempMemory(out);
+
+  /* Step 7: release JPEG compression object */
+
+  /* This is an important step since it will release a good deal of memory. */
+  jpeg_destroy_compress(&cinfo);
+
+  /* And we're done! */
+}
+
+/*
+=================
+SaveJPGToBuffer
+=================
+*/
+int SaveJPGToBuffer( byte *buffer, int quality,
+    int image_width, int image_height,
+    byte *image_buffer )
+{
+  struct jpeg_compress_struct cinfo;
+  struct jpeg_error_mgr jerr;
+  JSAMPROW row_pointer[1];	/* pointer to JSAMPLE row[s] */
+  int row_stride;		/* physical row width in image buffer */
+
+  /* Step 1: allocate and initialize JPEG compression object */
+  cinfo.err = jpeg_std_error(&jerr);
+  /* Now we can initialize the JPEG compression object. */
+  jpeg_create_compress(&cinfo);
+
+  /* Step 2: specify data destination (eg, a file) */
+  /* Note: steps 2 and 3 can be done in either order. */
+  jpegDest(&cinfo, buffer, image_width*image_height*4);
+
+  /* Step 3: set parameters for compression */
+  cinfo.image_width = image_width; 	/* image width and height, in pixels */
+  cinfo.image_height = image_height;
+  cinfo.input_components = 4;		/* # of color components per pixel */
+  cinfo.in_color_space = JCS_RGB; 	/* colorspace of input image */
+
+  jpeg_set_defaults(&cinfo);
+  jpeg_set_quality(&cinfo, quality, TRUE /* limit to baseline-JPEG values */);
+  /* If quality is set high, disable chroma subsampling */
+  if (quality >= 85) {
+    cinfo.comp_info[0].h_samp_factor = 1;
+    cinfo.comp_info[0].v_samp_factor = 1;
+  }
+
+  /* Step 4: Start compressor */
+  jpeg_start_compress(&cinfo, TRUE);
+
+  /* Step 5: while (scan lines remain to be written) */
+  /*           jpeg_write_scanlines(...); */
+  row_stride = image_width * 4;	/* JSAMPLEs per row in image_buffer */
+
+  while (cinfo.next_scanline < cinfo.image_height) {
+    /* jpeg_write_scanlines expects an array of pointers to scanlines.
+     * Here the array is only one element long, but you could pass
+     * more than one scanline at a time if that's more convenient.
+     */
+    row_pointer[0] = & image_buffer[((cinfo.image_height-1)*row_stride)-cinfo.next_scanline * row_stride];
+    (void) jpeg_write_scanlines(&cinfo, row_pointer, 1);
+  }
+
+  /* Step 6: Finish compression */
+  jpeg_finish_compress(&cinfo);
+
+  /* Step 7: release JPEG compression object */
+  jpeg_destroy_compress(&cinfo);
+
+  /* And we're done! */
+  return hackSize;
+}
diff --git a/src/renderer/tr_image_pcx.c b/src/renderer/tr_image_pcx.c
new file mode 100644
index 00000000..db407dea
--- /dev/null
+++ b/src/renderer/tr_image_pcx.c
@@ -0,0 +1,172 @@
+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+              2008 Ludwig Nussel
+
+This file is part of Quake III Arena source code.
+
+Quake III Arena source code 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.
+
+Quake III Arena source code 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 Quake III Arena source code; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+
+#include "tr_local.h"
+
+/*
+========================================================================
+
+PCX files are used for 8 bit images
+
+========================================================================
+*/
+
+typedef struct {
+	char	manufacturer;
+	char	version;
+	char	encoding;
+	char	bits_per_pixel;
+	unsigned short	xmin,ymin,xmax,ymax;
+	unsigned short	hres,vres;
+	unsigned char	palette[48];
+	char	reserved;
+	char	color_planes;
+	unsigned short	bytes_per_line;
+	unsigned short	palette_type;
+	unsigned short	hscreensize, vscreensize;
+	char	filler[54];
+	unsigned char	data[];
+} pcx_t;
+
+void R_LoadPCX ( const char *filename, byte **pic, int *width, int *height)
+{
+	byte	*raw;
+	byte	*end;
+	pcx_t	*pcx;
+	int		len;
+	unsigned char	dataByte = 0, runLength = 0;
+	byte	*out, *pix;
+	unsigned short w, h;
+	byte	*pic8;
+	byte	*palette;
+	int	i;
+	unsigned size = 0;
+
+	if (width)
+		*width = 0;
+	if (height)
+		*height = 0;
+	*pic = NULL;
+
+	//
+	// load the file
+	//
+	len = ri.FS_ReadFile( ( char * ) filename, (void **)&raw);
+	if (!raw || len < 0) {
+		return;
+	}
+
+	if((unsigned)len < sizeof(pcx_t))
+	{
+		ri.Printf (PRINT_ALL, "PCX truncated: %s\n", filename);
+		ri.FS_FreeFile (raw);
+		return;
+	}
+
+	//
+	// parse the PCX file
+	//
+	pcx = (pcx_t *)raw;
+	end = raw+len;
+
+	w = LittleShort(pcx->xmax)+1;
+	h = LittleShort(pcx->ymax)+1;
+	size = w*h;
+
+	if (pcx->manufacturer != 0x0a
+		|| pcx->version != 5
+		|| pcx->encoding != 1
+		|| pcx->color_planes != 1
+		|| pcx->bits_per_pixel != 8
+		|| w >= 1024
+		|| h >= 1024)
+	{
+		ri.Printf (PRINT_ALL, "Bad or unsupported pcx file %s (%dx%d@%d)\n", filename, w, h, pcx->bits_per_pixel);
+		return;
+	}
+
+	pix = pic8 = ri.Malloc ( size );
+
+	raw = pcx->data;
+	// FIXME: should use bytes_per_line but original q3 didn't do that either
+	while(pix < pic8+size)
+	{
+		if(runLength > 0) {
+			*pix++ = dataByte;
+			--runLength;
+			continue;
+		}
+
+		if(raw+1 > end)
+			break;
+		dataByte = *raw++;
+
+		if((dataByte & 0xC0) == 0xC0)
+		{
+			if(raw+1 > end)
+				break;
+			runLength = dataByte & 0x3F;
+			dataByte = *raw++;
+		}
+		else
+			runLength = 1;
+	}
+
+	if(pix < pic8+size)
+	{
+		ri.Printf (PRINT_ALL, "PCX file truncated: %s\n", filename);
+		ri.FS_FreeFile (pcx);
+		ri.Free (pic8);
+	}
+
+	if (raw-(byte*)pcx >= end - (byte*)769 || end[-769] != 0x0c)
+	{
+		ri.Printf (PRINT_ALL, "PCX missing palette: %s\n", filename);
+		ri.FS_FreeFile (pcx);
+		ri.Free (pic8);
+		return;
+	}
+
+	palette = end-768;
+
+	pix = out = ri.Malloc(4 * size );
+	for (i = 0 ; i < size ; i++)
+	{
+		unsigned char p = pic8[i];
+		pix[0] = palette[p*3];
+		pix[1] = palette[p*3 + 1];
+		pix[2] = palette[p*3 + 2];
+		pix[3] = 255;
+		pix += 4;
+	}
+
+	if (width)
+		*width = w;
+	if (height)
+		*height = h;
+
+	*pic = out;
+
+	ri.FS_FreeFile (pcx);
+	ri.Free (pic8);
+}
diff --git a/src/renderer/tr_image_png.c b/src/renderer/tr_image_png.c
new file mode 100644
index 00000000..e33ffffa
--- /dev/null
+++ b/src/renderer/tr_image_png.c
@@ -0,0 +1,2483 @@
+/*
+===========================================================================
+ioquake3 png decoder
+Copyright (C) 2007,2008 Joerg Dietrich
+
+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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+===========================================================================
+*/
+
+#include "tr_local.h"
+
+#include "../qcommon/puff.h"
+
+// we could limit the png size to a lower value here
+#ifndef INT_MAX
+#define INT_MAX 0x1fffffff
+#endif
+
+/*
+=================
+PNG LOADING
+=================
+*/
+
+/*
+ *  Quake 3 image format : RGBA
+ */
+
+#define Q3IMAGE_BYTESPERPIXEL (4)
+
+/*
+ *  PNG specifications
+ */
+
+/*
+ *  The first 8 Bytes of every PNG-File are a fixed signature
+ *  to identify the file as a PNG.
+ */
+
+#define PNG_Signature "\x89\x50\x4E\x47\xD\xA\x1A\xA"
+#define PNG_Signature_Size (8)
+
+/*
+ *  After the signature diverse chunks follow.
+ *  A chunk consists of a header and if Length
+ *  is bigger than 0 a body and a CRC of the body follow.
+ */
+
+struct PNG_ChunkHeader
+{
+	uint32_t Length;
+	uint32_t Type;
+};
+
+#define PNG_ChunkHeader_Size (8)
+
+typedef uint32_t PNG_ChunkCRC;
+
+#define PNG_ChunkCRC_Size (4)
+
+/*
+ *  We use the following ChunkTypes.
+ *  All others are ignored.
+ */
+
+#define MAKE_CHUNKTYPE(a,b,c,d) (((a) << 24) | ((b) << 16) | ((c) << 8) | ((d)))
+
+#define PNG_ChunkType_IHDR MAKE_CHUNKTYPE('I', 'H', 'D', 'R')
+#define PNG_ChunkType_PLTE MAKE_CHUNKTYPE('P', 'L', 'T', 'E')
+#define PNG_ChunkType_IDAT MAKE_CHUNKTYPE('I', 'D', 'A', 'T')
+#define PNG_ChunkType_IEND MAKE_CHUNKTYPE('I', 'E', 'N', 'D')
+#define PNG_ChunkType_tRNS MAKE_CHUNKTYPE('t', 'R', 'N', 'S')
+
+/*
+ *  Per specification the first chunk after the signature SHALL be IHDR.
+ */
+
+struct PNG_Chunk_IHDR
+{
+	uint32_t Width;
+	uint32_t Height;
+	uint8_t  BitDepth;
+	uint8_t  ColourType;
+	uint8_t  CompressionMethod;
+	uint8_t  FilterMethod;
+	uint8_t  InterlaceMethod;
+};
+
+#define PNG_Chunk_IHDR_Size (13)
+
+/*
+ *  ColourTypes
+ */
+
+#define PNG_ColourType_Grey      (0)
+#define PNG_ColourType_True      (2)
+#define PNG_ColourType_Indexed   (3)
+#define PNG_ColourType_GreyAlpha (4)
+#define PNG_ColourType_TrueAlpha (6)
+
+/*
+ *  number of colour components
+ *
+ *  Grey      : 1 grey
+ *  True      : 1 R, 1 G, 1 B
+ *  Indexed   : 1 index
+ *  GreyAlpha : 1 grey, 1 alpha
+ *  TrueAlpha : 1 R, 1 G, 1 B, 1 alpha
+ */
+
+#define PNG_NumColourComponents_Grey      (1)
+#define PNG_NumColourComponents_True      (3)
+#define PNG_NumColourComponents_Indexed   (1)
+#define PNG_NumColourComponents_GreyAlpha (2)
+#define PNG_NumColourComponents_TrueAlpha (4)
+
+/*
+ *  For the different ColourTypes
+ *  different BitDepths are specified.
+ */
+
+#define PNG_BitDepth_1  ( 1)
+#define PNG_BitDepth_2  ( 2)
+#define PNG_BitDepth_4  ( 4)
+#define PNG_BitDepth_8  ( 8)
+#define PNG_BitDepth_16 (16)
+
+/*
+ *  Only one valid CompressionMethod is standardized.
+ */
+
+#define PNG_CompressionMethod_0 (0)
+
+/*
+ *  Only one valid FilterMethod is currently standardized.
+ */
+
+#define PNG_FilterMethod_0 (0)
+
+/*
+ *  This FilterMethod defines 5 FilterTypes
+ */
+
+#define PNG_FilterType_None    (0)
+#define PNG_FilterType_Sub     (1)
+#define PNG_FilterType_Up      (2)
+#define PNG_FilterType_Average (3)
+#define PNG_FilterType_Paeth   (4)
+
+/*
+ *  Two InterlaceMethods are standardized :
+ *  0 - NonInterlaced
+ *  1 - Interlaced
+ */
+
+#define PNG_InterlaceMethod_NonInterlaced (0)
+#define PNG_InterlaceMethod_Interlaced    (1)
+
+/*
+ *  The Adam7 interlace method uses 7 passes.
+ */
+
+#define PNG_Adam7_NumPasses (7)
+
+/*
+ *  The compressed data starts with a header ...
+ */
+
+struct PNG_ZlibHeader
+{
+	uint8_t CompressionMethod;
+	uint8_t Flags;
+};
+
+#define PNG_ZlibHeader_Size (2)
+
+/*
+ *  ... and is followed by a check value
+ */
+
+#define PNG_ZlibCheckValue_Size (4)
+
+/*
+ *  Some support functions for buffered files follow.
+ */
+
+/*
+ *  buffered file representation
+ */
+
+struct BufferedFile
+{
+	byte *Buffer;
+	int   Length;
+	byte *Ptr;
+	int   BytesLeft;
+};
+
+/*
+ *  Read a file into a buffer.
+ */
+
+static struct BufferedFile *ReadBufferedFile(const char *name)
+{
+	struct BufferedFile *BF;
+
+	/*
+	 *  input verification
+	 */
+
+	if(!name)
+	{
+		return(NULL);
+	}
+
+	/*
+	 *  Allocate control struct.
+	 */
+
+	BF = ri.Malloc(sizeof(struct BufferedFile));
+	if(!BF)
+	{
+		return(NULL);
+	}
+
+	/*
+	 *  Initialize the structs components.
+	 */
+
+	BF->Length    = 0;
+	BF->Buffer    = NULL;
+	BF->Ptr       = NULL;
+	BF->BytesLeft = 0;
+
+	/*
+	 *  Read the file.
+	 */
+
+	BF->Length = ri.FS_ReadFile((char *) name, (void **) &BF->Buffer);
+
+	/*
+	 *  Did we get it? Is it big enough?
+	 */
+
+	if(!(BF->Buffer && (BF->Length > 0)))
+	{
+		ri.Free(BF);
+
+		return(NULL);
+	}
+
+	/*
+	 *  Set the pointers and counters.
+	 */
+
+	BF->Ptr       = BF->Buffer;
+	BF->BytesLeft = BF->Length;
+
+	return(BF);
+}
+
+/*
+ *  Close a buffered file.
+ */
+
+static void CloseBufferedFile(struct BufferedFile *BF)
+{
+	if(BF)
+	{
+		if(BF->Buffer)
+		{
+			ri.FS_FreeFile(BF->Buffer);
+		}
+
+		ri.Free(BF);
+	}
+}
+
+/*
+ *  Get a pointer to the requested bytes.
+ */
+
+static void *BufferedFileRead(struct BufferedFile *BF, unsigned Length)
+{
+	void *RetVal;
+
+	/*
+	 *  input verification
+	 */
+
+	if(!(BF && Length))
+	{
+		return(NULL);
+	}
+
+	/*
+	 *  not enough bytes left
+	 */
+
+	if(Length > BF->BytesLeft)
+	{
+		return(NULL);
+	}
+
+	/*
+	 *  the pointer to the requested data
+	 */
+
+	RetVal = BF->Ptr;
+
+	/*
+	 *  Raise the pointer and counter.
+	 */
+
+	BF->Ptr       += Length;
+	BF->BytesLeft -= Length;
+
+	return(RetVal);
+}
+
+/*
+ *  Rewind the buffer.
+ */
+
+static qboolean BufferedFileRewind(struct BufferedFile *BF, unsigned Offset)
+{
+	unsigned BytesRead; 
+
+	/*
+	 *  input verification
+	 */
+
+	if(!BF)
+	{
+		return(qfalse);
+	}
+
+	/*
+	 *  special trick to rewind to the beginning of the buffer
+	 */
+
+	if(Offset == (unsigned)-1)
+	{
+		BF->Ptr       = BF->Buffer;
+		BF->BytesLeft = BF->Length;
+
+		return(qtrue);
+	}
+
+	/*
+	 *  How many bytes do we have already read?
+	 */
+
+	BytesRead = BF->Ptr - BF->Buffer;
+
+	/*
+	 *  We can only rewind to the beginning of the BufferedFile.
+	 */
+
+	if(Offset > BytesRead)
+	{
+		return(qfalse);
+	}
+
+	/*
+	 *  lower the pointer and counter.
+	 */
+
+	BF->Ptr       -= Offset;
+	BF->BytesLeft += Offset;
+
+	return(qtrue);
+}
+
+/*
+ *  Skip some bytes.
+ */
+
+static qboolean BufferedFileSkip(struct BufferedFile *BF, unsigned Offset)
+{
+	/*
+	 *  input verification
+	 */
+
+	if(!BF)
+	{
+		return(qfalse);
+	}
+
+	/*
+	 *  We can only skip to the end of the BufferedFile.
+	 */
+
+	if(Offset > BF->BytesLeft)
+	{
+		return(qfalse);
+	}
+
+	/*
+	 *  lower the pointer and counter.
+	 */
+
+	BF->Ptr       += Offset;
+	BF->BytesLeft -= Offset;
+
+	return(qtrue);
+}
+
+/*
+ *  Find a chunk
+ */
+
+static qboolean FindChunk(struct BufferedFile *BF, uint32_t ChunkType)
+{
+	struct PNG_ChunkHeader *CH;
+
+	uint32_t Length;
+	uint32_t Type;
+
+	/*
+	 *  input verification
+	 */
+
+	if(!BF)
+	{
+		return(qfalse);
+	}
+
+	/*
+	 *  cycle trough the chunks
+	 */
+
+	while(qtrue)
+	{
+		/*
+		 *  Read the chunk-header.
+		 */
+
+		CH = BufferedFileRead(BF, PNG_ChunkHeader_Size);
+		if(!CH)
+		{
+			return(qfalse);
+		}
+
+		/*
+		 *  Do not swap the original types
+		 *  they might be needed later.
+		 */
+
+		Length = BigLong(CH->Length);
+		Type   = BigLong(CH->Type);
+
+		/*
+		 *  We found it!
+		 */
+
+		if(Type == ChunkType)
+		{
+			/*
+			 *  Rewind to the start of the chunk.
+			 */
+
+			BufferedFileRewind(BF, PNG_ChunkHeader_Size);
+
+			break;
+		}
+		else
+		{
+			/*
+			 *  Skip the rest of the chunk.
+			 */
+
+			if(Length)
+			{
+				if(!BufferedFileSkip(BF, Length + PNG_ChunkCRC_Size))
+				{
+					return(qfalse);
+				}  
+			}
+		}
+	}
+
+	return(qtrue);
+}
+
+/*
+ *  Decompress all IDATs
+ */
+
+static uint32_t DecompressIDATs(struct BufferedFile *BF, uint8_t **Buffer)
+{
+	uint8_t  *DecompressedData;
+	uint32_t  DecompressedDataLength;
+
+	uint8_t  *CompressedData;
+	uint8_t  *CompressedDataPtr;
+	uint32_t  CompressedDataLength;
+
+	struct PNG_ChunkHeader *CH;
+
+	uint32_t Length;
+	uint32_t Type;
+
+	int BytesToRewind;
+
+	int32_t   puffResult;
+	uint8_t  *puffDest;
+	uint32_t  puffDestLen;
+	uint8_t  *puffSrc;
+	uint32_t  puffSrcLen;
+
+	/*
+	 *  input verification
+	 */
+
+	if(!(BF && Buffer))
+	{
+		return(-1);
+	}
+
+	/*
+	 *  some zeroing
+	 */
+
+	DecompressedData = NULL;
+	DecompressedDataLength = 0;
+	*Buffer = DecompressedData;
+
+	CompressedData = NULL;
+	CompressedDataLength = 0;
+
+	BytesToRewind = 0;
+
+	/*
+	 *  Find the first IDAT chunk.
+	 */
+
+	if(!FindChunk(BF, PNG_ChunkType_IDAT))
+	{
+		return(-1);
+	}
+
+	/*
+	 *  Count the size of the uncompressed data
+	 */
+
+	while(qtrue)
+	{
+		/*
+		 *  Read chunk header
+		 */
+
+		CH = BufferedFileRead(BF, PNG_ChunkHeader_Size);
+		if(!CH)
+		{
+			/*
+			 *  Rewind to the start of this adventure
+			 *  and return unsuccessfull
+			 */
+
+			BufferedFileRewind(BF, BytesToRewind);
+
+			return(-1);
+		}
+
+		/*
+		 *  Length and Type of chunk
+		 */
+
+		Length = BigLong(CH->Length);
+		Type   = BigLong(CH->Type);
+
+		/*
+		 *  We have reached the end of the IDAT chunks
+		 */
+
+		if(!(Type == PNG_ChunkType_IDAT))
+		{
+			BufferedFileRewind(BF, PNG_ChunkHeader_Size); 
+
+			break;
+		}
+
+		/*
+		 *  Add chunk header to count.
+		 */
+
+		BytesToRewind += PNG_ChunkHeader_Size;
+
+		/*
+		 *  Skip to next chunk
+		 */
+
+		if(Length)
+		{
+			if(!BufferedFileSkip(BF, Length + PNG_ChunkCRC_Size))
+			{
+				BufferedFileRewind(BF, BytesToRewind);
+
+				return(-1);
+			}
+
+			BytesToRewind += Length + PNG_ChunkCRC_Size;
+			CompressedDataLength += Length;
+		} 
+	}
+
+	BufferedFileRewind(BF, BytesToRewind);
+
+	CompressedData = ri.Malloc(CompressedDataLength);
+	if(!CompressedData)
+	{
+		return(-1);
+	}
+
+	CompressedDataPtr = CompressedData;
+
+	/*
+	 *  Collect the compressed Data
+	 */
+
+	while(qtrue)
+	{
+		/*
+		 *  Read chunk header
+		 */
+
+		CH = BufferedFileRead(BF, PNG_ChunkHeader_Size);
+		if(!CH)
+		{
+			ri.Free(CompressedData); 
+
+			return(-1);
+		}
+
+		/*
+		 *  Length and Type of chunk
+		 */
+
+		Length = BigLong(CH->Length);
+		Type   = BigLong(CH->Type);
+
+		/*
+		 *  We have reached the end of the IDAT chunks
+		 */
+
+		if(!(Type == PNG_ChunkType_IDAT))
+		{
+			BufferedFileRewind(BF, PNG_ChunkHeader_Size); 
+
+			break;
+		}
+
+		/*
+		 *  Copy the Data
+		 */
+
+		if(Length)
+		{
+			uint8_t *OrigCompressedData;
+
+			OrigCompressedData = BufferedFileRead(BF, Length);
+			if(!OrigCompressedData)
+			{
+				ri.Free(CompressedData); 
+
+				return(-1);
+			}
+
+			if(!BufferedFileSkip(BF, PNG_ChunkCRC_Size))
+			{
+				ri.Free(CompressedData); 
+
+				return(-1);
+			}
+
+			memcpy(CompressedDataPtr, OrigCompressedData, Length);
+			CompressedDataPtr += Length;
+		} 
+	}
+
+	/*
+	 *  Let puff() calculate the decompressed data length.
+	 */
+
+	puffDest    = NULL;
+	puffDestLen = 0;
+
+	/*
+	 *  The zlib header and checkvalue don't belong to the compressed data.
+	 */
+
+	puffSrc    = CompressedData + PNG_ZlibHeader_Size;
+	puffSrcLen = CompressedDataLength - PNG_ZlibHeader_Size - PNG_ZlibCheckValue_Size;
+
+	/*
+	 *  first puff() to calculate the size of the uncompressed data
+	 */
+
+	puffResult = puff(puffDest, &puffDestLen, puffSrc, &puffSrcLen);
+	if(!((puffResult == 0) && (puffDestLen > 0)))
+	{
+		ri.Free(CompressedData);
+
+		return(-1);
+	}
+
+	/*
+	 *  Allocate the buffer for the uncompressed data.
+	 */
+
+	DecompressedData = ri.Malloc(puffDestLen);
+	if(!DecompressedData)
+	{
+		ri.Free(CompressedData);
+
+		return(-1);
+	}
+
+	/*
+	 *  Set the input again in case something was changed by the last puff() .
+	 */
+
+	puffDest   = DecompressedData;
+	puffSrc    = CompressedData + PNG_ZlibHeader_Size;
+	puffSrcLen = CompressedDataLength - PNG_ZlibHeader_Size - PNG_ZlibCheckValue_Size;
+
+	/*
+	 *  decompression puff()
+	 */
+
+	puffResult = puff(puffDest, &puffDestLen, puffSrc, &puffSrcLen);
+
+	/*
+	 *  The compressed data is not needed anymore.
+	 */
+
+	ri.Free(CompressedData);
+
+	/*
+	 *  Check if the last puff() was successfull.
+	 */
+
+	if(!((puffResult == 0) && (puffDestLen > 0)))
+	{
+		ri.Free(DecompressedData);
+
+		return(-1);
+	}
+
+	/*
+	 *  Set the output of this function.
+	 */
+
+	DecompressedDataLength = puffDestLen;
+	*Buffer = DecompressedData;
+
+	return(DecompressedDataLength);
+}
+
+/*
+ *  the Paeth predictor
+ */
+
+static uint8_t PredictPaeth(uint8_t a, uint8_t b, uint8_t c)
+{
+	/*
+	 *  a == Left
+	 *  b == Up
+	 *  c == UpLeft
+	 */
+
+	uint8_t Pr;
+	int p;
+	int pa, pb, pc;
+
+	Pr = 0;
+
+	p  = ((int) a) + ((int) b) - ((int) c);
+	pa = abs(p - ((int) a));
+	pb = abs(p - ((int) b));
+	pc = abs(p - ((int) c));
+
+	if((pa <= pb) && (pa <= pc))
+	{
+		Pr = a;
+	}
+	else if(pb <= pc)
+	{
+		Pr = b;
+	}
+	else
+	{
+		Pr = c;
+	}
+
+	return(Pr);
+
+}
+
+/*
+ *  Reverse the filters.
+ */
+
+static qboolean UnfilterImage(uint8_t  *DecompressedData, 
+		uint32_t  ImageHeight,
+		uint32_t  BytesPerScanline, 
+		uint32_t  BytesPerPixel)
+{
+	uint8_t   *DecompPtr;
+	uint8_t   FilterType;
+	uint8_t  *PixelLeft, *PixelUp, *PixelUpLeft;
+	uint32_t  w, h, p;
+
+	/*
+	 *  some zeros for the filters
+	 */
+
+	uint8_t Zeros[8] = {0, 0, 0, 0, 0, 0, 0, 0};
+
+	/*
+	 *  input verification
+	 */
+
+	if(!(DecompressedData && BytesPerPixel))
+	{
+		return(qfalse);
+	}
+
+	/*
+	 *  ImageHeight and BytesPerScanline can be zero in small interlaced images.
+	 */
+
+	if((!ImageHeight) || (!BytesPerScanline))
+	{
+		return(qtrue);
+	}
+
+	/*
+	 *  Set the pointer to the start of the decompressed Data.
+	 */
+
+	DecompPtr = DecompressedData;
+
+	/*
+	 *  Un-filtering is done in place.
+	 */
+
+	/*
+	 *  Go trough all scanlines.
+	 */
+
+	for(h = 0; h < ImageHeight; h++)
+	{
+		/*
+		 *  Every scanline starts with a FilterType byte.
+		 */
+
+		FilterType = *DecompPtr;
+		DecompPtr++;
+
+		/*
+		 *  Left pixel of the first byte in a scanline is zero.
+		 */
+
+		PixelLeft = Zeros;
+
+		/*
+		 *  Set PixelUp to previous line only if we are on the second line or above.
+		 *
+		 *  Plus one byte for the FilterType
+		 */
+
+		if(h > 0)
+		{
+			PixelUp = DecompPtr - (BytesPerScanline + 1);
+		}
+		else
+		{
+			PixelUp = Zeros;
+		}
+
+		/*
+		 * The pixel left to the first pixel of the previous scanline is zero too.
+		 */
+
+		PixelUpLeft = Zeros;
+
+		/*
+		 *  Cycle trough all pixels of the scanline.
+		 */
+
+		for(w = 0; w < (BytesPerScanline / BytesPerPixel); w++)
+		{
+			/*
+			 *  Cycle trough the bytes of the pixel.
+			 */
+
+			for(p = 0; p < BytesPerPixel; p++)
+			{
+				switch(FilterType)
+				{ 
+					case PNG_FilterType_None :
+					{
+						/*
+						 *  The byte is unfiltered.
+						 */
+
+						break;
+					}
+
+					case PNG_FilterType_Sub :
+					{
+						DecompPtr[p] += PixelLeft[p];
+
+						break;
+					}
+
+					case PNG_FilterType_Up :
+					{
+						DecompPtr[p] += PixelUp[p];
+
+						break;
+					}
+
+					case PNG_FilterType_Average :
+					{
+						DecompPtr[p] += ((uint8_t) ((((uint16_t) PixelLeft[p]) + ((uint16_t) PixelUp[p])) / 2));
+
+						break;
+					}
+
+					case PNG_FilterType_Paeth :
+					{
+						DecompPtr[p] += PredictPaeth(PixelLeft[p], PixelUp[p], PixelUpLeft[p]);
+
+						break;
+					}
+
+					default :
+					{
+						return(qfalse);
+					}
+				}
+			}
+
+			PixelLeft = DecompPtr;
+
+			/*
+			 *  We only have a upleft pixel if we are on the second line or above.
+			 */
+
+			if(h > 0)
+			{
+				PixelUpLeft = DecompPtr - (BytesPerScanline + 1);
+			}
+
+			/*
+			 *  Skip to the next pixel.
+			 */
+
+			DecompPtr += BytesPerPixel;
+
+			/*
+			 *  We only have a previous line if we are on the second line and above.
+			 */
+
+			if(h > 0)
+			{
+				PixelUp = DecompPtr - (BytesPerScanline + 1);
+			}
+		}
+	}
+
+	return(qtrue);
+}
+
+/*
+ *  Convert a raw input pixel to Quake 3 RGA format.
+ */
+
+static qboolean ConvertPixel(struct PNG_Chunk_IHDR *IHDR,
+		byte                  *OutPtr,
+		uint8_t               *DecompPtr,
+		qboolean               HasTransparentColour,
+		uint8_t               *TransparentColour,
+		uint8_t               *OutPal)
+{
+	/*
+	 *  input verification
+	 */
+
+	if(!(IHDR && OutPtr && DecompPtr && TransparentColour && OutPal))
+	{
+		return(qfalse);
+	}
+
+	switch(IHDR->ColourType)
+	{
+		case PNG_ColourType_Grey :
+		{
+			switch(IHDR->BitDepth)
+			{
+				case PNG_BitDepth_1 :
+				case PNG_BitDepth_2 :
+				case PNG_BitDepth_4 :
+				{
+					uint8_t Step;
+					uint8_t GreyValue;
+
+					Step = 0xFF / ((1 << IHDR->BitDepth) - 1);
+
+					GreyValue = DecompPtr[0] * Step;
+
+					OutPtr[0] = GreyValue;
+					OutPtr[1] = GreyValue;
+					OutPtr[2] = GreyValue;
+					OutPtr[3] = 0xFF;
+
+					/*
+					 *  Grey supports full transparency for one specified colour
+					 */
+
+					if(HasTransparentColour)
+					{
+						if(TransparentColour[1] == DecompPtr[0])
+						{
+							OutPtr[3] = 0x00;
+						}
+					}
+
+
+					break;
+				}
+
+				case PNG_BitDepth_8 :
+				case PNG_BitDepth_16 :
+				{
+					OutPtr[0] = DecompPtr[0];
+					OutPtr[1] = DecompPtr[0];
+					OutPtr[2] = DecompPtr[0];
+					OutPtr[3] = 0xFF;
+
+					/*
+					 *  Grey supports full transparency for one specified colour
+					 */
+
+					if(HasTransparentColour)
+					{
+						if(IHDR->BitDepth == PNG_BitDepth_8)
+						{
+							if(TransparentColour[1] == DecompPtr[0])
+							{
+								OutPtr[3] = 0x00;
+							}
+						}
+						else
+						{
+							if((TransparentColour[0] == DecompPtr[0]) && (TransparentColour[1] == DecompPtr[1]))
+							{
+								OutPtr[3] = 0x00;
+							}
+						}
+					}
+
+					break;
+				}
+
+				default :
+				{
+					return(qfalse);
+				}
+			}
+
+			break;
+		}
+
+		case PNG_ColourType_True :
+		{
+			switch(IHDR->BitDepth)
+			{
+				case PNG_BitDepth_8 :
+				{
+					OutPtr[0] = DecompPtr[0];
+					OutPtr[1] = DecompPtr[1];
+					OutPtr[2] = DecompPtr[2];
+					OutPtr[3] = 0xFF;
+
+					/*
+					 *  True supports full transparency for one specified colour
+					 */
+
+					if(HasTransparentColour)
+					{
+						if((TransparentColour[1] == DecompPtr[0]) &&
+								(TransparentColour[3] == DecompPtr[1]) &&
+								(TransparentColour[5] == DecompPtr[2]))
+						{
+							OutPtr[3] = 0x00;
+						}
+					}
+
+					break;
+				}
+
+				case PNG_BitDepth_16 :
+				{
+					/*
+					 *  We use only the upper byte.
+					 */
+
+					OutPtr[0] = DecompPtr[0];
+					OutPtr[1] = DecompPtr[2];
+					OutPtr[2] = DecompPtr[4];
+					OutPtr[3] = 0xFF;
+
+					/*
+					 *  True supports full transparency for one specified colour
+					 */
+
+					if(HasTransparentColour)
+					{
+						if((TransparentColour[0] == DecompPtr[0]) && (TransparentColour[1] == DecompPtr[1]) &&
+								(TransparentColour[2] == DecompPtr[2]) && (TransparentColour[3] == DecompPtr[3]) &&
+								(TransparentColour[4] == DecompPtr[4]) && (TransparentColour[5] == DecompPtr[5]))
+						{
+							OutPtr[3] = 0x00;
+						}
+					}
+
+					break;
+				}
+
+				default :
+				{
+					return(qfalse);
+				}
+			}
+
+			break;
+		}
+
+		case PNG_ColourType_Indexed :
+		{
+			OutPtr[0] = OutPal[DecompPtr[0] * Q3IMAGE_BYTESPERPIXEL + 0];
+			OutPtr[1] = OutPal[DecompPtr[0] * Q3IMAGE_BYTESPERPIXEL + 1];
+			OutPtr[2] = OutPal[DecompPtr[0] * Q3IMAGE_BYTESPERPIXEL + 2];
+			OutPtr[3] = OutPal[DecompPtr[0] * Q3IMAGE_BYTESPERPIXEL + 3];
+
+			break;
+		}
+
+		case PNG_ColourType_GreyAlpha :
+		{
+			switch(IHDR->BitDepth)
+			{
+				case PNG_BitDepth_8 :
+				{
+					OutPtr[0] = DecompPtr[0];
+					OutPtr[1] = DecompPtr[0];
+					OutPtr[2] = DecompPtr[0];
+					OutPtr[3] = DecompPtr[1];
+
+					break;
+				}
+
+				case PNG_BitDepth_16 :
+				{
+					/*
+					 *  We use only the upper byte.
+					 */
+
+					OutPtr[0] = DecompPtr[0];
+					OutPtr[1] = DecompPtr[0];
+					OutPtr[2] = DecompPtr[0];
+					OutPtr[3] = DecompPtr[2];
+
+					break;
+				}
+
+				default :
+				{
+					return(qfalse);
+				}
+			}
+
+			break;
+		}
+
+		case PNG_ColourType_TrueAlpha :
+		{
+			switch(IHDR->BitDepth)
+			{
+				case PNG_BitDepth_8 :
+				{
+					OutPtr[0] = DecompPtr[0];
+					OutPtr[1] = DecompPtr[1];
+					OutPtr[2] = DecompPtr[2];
+					OutPtr[3] = DecompPtr[3];
+
+					break;
+				}
+
+				case PNG_BitDepth_16 :
+				{
+					/*
+					 *  We use only the upper byte.
+					 */
+
+					OutPtr[0] = DecompPtr[0];
+					OutPtr[1] = DecompPtr[2];
+					OutPtr[2] = DecompPtr[4];
+					OutPtr[3] = DecompPtr[6];
+
+					break;
+				}
+
+				default :
+				{
+					return(qfalse);
+				}
+			}
+
+			break;
+		}
+
+		default :
+		{
+			return(qfalse);
+		}
+	}
+
+	return(qtrue);
+}
+
+
+/*
+ *  Decode a non-interlaced image.
+ */
+
+static qboolean DecodeImageNonInterlaced(struct PNG_Chunk_IHDR *IHDR,
+		byte                  *OutBuffer, 
+		uint8_t               *DecompressedData,
+		uint32_t               DecompressedDataLength,
+		qboolean               HasTransparentColour,
+		uint8_t               *TransparentColour,
+		uint8_t               *OutPal)
+{
+	uint32_t IHDR_Width;
+	uint32_t IHDR_Height;
+	uint32_t BytesPerScanline, BytesPerPixel, PixelsPerByte;
+	uint32_t  w, h, p;
+	byte *OutPtr;
+	uint8_t *DecompPtr;
+
+	/*
+	 *  input verification
+	 */
+
+	if(!(IHDR && OutBuffer && DecompressedData && DecompressedDataLength && TransparentColour && OutPal))
+	{
+		return(qfalse);
+	}
+
+	/*
+	 *  byte swapping
+	 */
+
+	IHDR_Width  = BigLong(IHDR->Width);
+	IHDR_Height = BigLong(IHDR->Height);
+
+	/*
+	 *  information for un-filtering
+	 */
+
+	switch(IHDR->ColourType)
+	{
+		case PNG_ColourType_Grey :
+		{
+			switch(IHDR->BitDepth)
+			{
+				case PNG_BitDepth_1 :
+				case PNG_BitDepth_2 :
+				case PNG_BitDepth_4 :
+				{
+					BytesPerPixel    = 1;
+					PixelsPerByte    = 8 / IHDR->BitDepth;
+
+					break;
+				}
+
+				case PNG_BitDepth_8  :
+				case PNG_BitDepth_16 :
+				{
+					BytesPerPixel    = (IHDR->BitDepth / 8) * PNG_NumColourComponents_Grey;
+					PixelsPerByte    = 1;
+
+					break;
+				}
+
+				default :
+				{
+					return(qfalse);
+				}
+			}
+
+			break;
+		}
+
+		case PNG_ColourType_True :
+		{
+			switch(IHDR->BitDepth)
+			{
+				case PNG_BitDepth_8  :
+				case PNG_BitDepth_16 :
+				{
+					BytesPerPixel    = (IHDR->BitDepth / 8) * PNG_NumColourComponents_True;
+					PixelsPerByte    = 1;
+
+					break;
+				}
+
+				default :
+				{
+					return(qfalse);
+				}
+			}
+
+			break;
+		}
+
+		case PNG_ColourType_Indexed :
+		{
+			switch(IHDR->BitDepth)
+			{
+				case PNG_BitDepth_1 :
+				case PNG_BitDepth_2 :
+				case PNG_BitDepth_4 :
+				{
+					BytesPerPixel    = 1;
+					PixelsPerByte    = 8 / IHDR->BitDepth;
+
+					break;
+				}
+
+				case PNG_BitDepth_8 :
+				{
+					BytesPerPixel    = PNG_NumColourComponents_Indexed;
+					PixelsPerByte    = 1;
+
+					break;
+				}
+
+				default :
+				{
+					return(qfalse);
+				}
+			}
+
+			break;
+		}
+
+		case PNG_ColourType_GreyAlpha :
+		{
+			switch(IHDR->BitDepth)
+			{
+				case PNG_BitDepth_8 :
+				case PNG_BitDepth_16 :
+				{
+					BytesPerPixel    = (IHDR->BitDepth / 8) * PNG_NumColourComponents_GreyAlpha;
+					PixelsPerByte    = 1;
+
+					break;
+				}
+
+				default :
+				{
+					return(qfalse);
+				}
+			}
+
+			break;
+		}
+
+		case PNG_ColourType_TrueAlpha :
+		{
+			switch(IHDR->BitDepth)
+			{
+				case PNG_BitDepth_8 :
+				case PNG_BitDepth_16 :
+				{
+					BytesPerPixel    = (IHDR->BitDepth / 8) * PNG_NumColourComponents_TrueAlpha;
+					PixelsPerByte    = 1;
+
+					break;
+				}
+
+				default :
+				{
+					return(qfalse);
+				}
+			}
+
+			break;
+		}
+
+		default :
+		{
+			return(qfalse);
+		}
+	}
+
+	/*
+	 *  Calculate the size of one scanline
+	 */
+
+	BytesPerScanline = (IHDR_Width * BytesPerPixel + (PixelsPerByte - 1)) / PixelsPerByte;
+
+	/*
+	 *  Check if we have enough data for the whole image.
+	 */
+
+	if(!(DecompressedDataLength == ((BytesPerScanline + 1) * IHDR_Height)))
+	{
+		return(qfalse);
+	}
+
+	/*
+	 *  Unfilter the image.
+	 */
+
+	if(!UnfilterImage(DecompressedData, IHDR_Height, BytesPerScanline, BytesPerPixel))
+	{
+		return(qfalse);
+	}
+
+	/*
+	 *  Set the working pointers to the beginning of the buffers.
+	 */
+
+	OutPtr = OutBuffer;
+	DecompPtr = DecompressedData;
+
+	/*
+	 *  Create the output image.
+	 */
+
+	for(h = 0; h < IHDR_Height; h++)
+	{
+		/*
+		 *  Count the pixels on the scanline for those multipixel bytes
+		 */
+
+		uint32_t CurrPixel;
+
+		/*
+		 *  skip FilterType
+		 */
+
+		DecompPtr++;
+
+		/*
+		 *  Reset the pixel count.
+		 */
+
+		CurrPixel = 0;
+
+		for(w = 0; w < (BytesPerScanline / BytesPerPixel); w++)
+		{
+			if(PixelsPerByte > 1)
+			{
+				uint8_t  Mask;
+				uint32_t Shift;
+				uint8_t  SinglePixel;
+
+				for(p = 0; p < PixelsPerByte; p++)
+				{
+					if(CurrPixel < IHDR_Width)
+					{
+						Mask  = (1 << IHDR->BitDepth) - 1;
+						Shift = (PixelsPerByte - 1 - p) * IHDR->BitDepth;
+
+						SinglePixel = ((DecompPtr[0] & (Mask << Shift)) >> Shift);
+
+						if(!ConvertPixel(IHDR, OutPtr, &SinglePixel, HasTransparentColour, TransparentColour, OutPal))
+						{
+							return(qfalse);
+						}
+
+						OutPtr += Q3IMAGE_BYTESPERPIXEL;
+						CurrPixel++;
+					}
+				}
+
+			}
+			else
+			{
+				if(!ConvertPixel(IHDR, OutPtr, DecompPtr, HasTransparentColour, TransparentColour, OutPal))
+				{
+					return(qfalse);
+				}
+
+
+				OutPtr += Q3IMAGE_BYTESPERPIXEL;
+			}
+
+			DecompPtr += BytesPerPixel;
+		}
+	}
+
+	return(qtrue);
+}
+
+/*
+ *  Decode an interlaced image.
+ */
+
+static qboolean DecodeImageInterlaced(struct PNG_Chunk_IHDR *IHDR,
+		byte                  *OutBuffer, 
+		uint8_t               *DecompressedData,
+		uint32_t               DecompressedDataLength,
+		qboolean               HasTransparentColour,
+		uint8_t               *TransparentColour,
+		uint8_t               *OutPal)
+{
+	uint32_t IHDR_Width;
+	uint32_t IHDR_Height;
+	uint32_t BytesPerScanline[PNG_Adam7_NumPasses], BytesPerPixel, PixelsPerByte;
+	uint32_t PassWidth[PNG_Adam7_NumPasses], PassHeight[PNG_Adam7_NumPasses];
+	uint32_t WSkip[PNG_Adam7_NumPasses], WOffset[PNG_Adam7_NumPasses], HSkip[PNG_Adam7_NumPasses], HOffset[PNG_Adam7_NumPasses];
+	uint32_t w, h, p, a;
+	byte *OutPtr;
+	uint8_t *DecompPtr;
+	uint32_t TargetLength;
+
+	/*
+	 *  input verification
+	 */
+
+	if(!(IHDR && OutBuffer && DecompressedData && DecompressedDataLength && TransparentColour && OutPal))
+	{
+		return(qfalse);
+	}
+
+	/*
+	 *  byte swapping
+	 */
+
+	IHDR_Width  = BigLong(IHDR->Width);
+	IHDR_Height = BigLong(IHDR->Height);
+
+	/*
+	 *  Skip and Offset for the passes.
+	 */
+
+	WSkip[0]   = 8;
+	WOffset[0] = 0;
+	HSkip[0]   = 8;
+	HOffset[0] = 0;
+
+	WSkip[1]   = 8;
+	WOffset[1] = 4;
+	HSkip[1]   = 8;
+	HOffset[1] = 0;
+
+	WSkip[2]   = 4;
+	WOffset[2] = 0;
+	HSkip[2]   = 8;
+	HOffset[2] = 4;
+
+	WSkip[3]   = 4;
+	WOffset[3] = 2;
+	HSkip[3]   = 4;
+	HOffset[3] = 0;
+
+	WSkip[4]   = 2;
+	WOffset[4] = 0;
+	HSkip[4]   = 4;
+	HOffset[4] = 2;
+
+	WSkip[5]   = 2;
+	WOffset[5] = 1;
+	HSkip[5]   = 2;
+	HOffset[5] = 0;
+
+	WSkip[6]   = 1;
+	WOffset[6] = 0;
+	HSkip[6]   = 2;
+	HOffset[6] = 1;
+
+	/*
+	 *  Calculate the sizes of the passes.
+	 */
+
+	PassWidth[0]  = (IHDR_Width  + 7) / 8;
+	PassHeight[0] = (IHDR_Height + 7) / 8;
+
+	PassWidth[1]  = (IHDR_Width  + 3) / 8;
+	PassHeight[1] = (IHDR_Height + 7) / 8;
+
+	PassWidth[2]  = (IHDR_Width  + 3) / 4;
+	PassHeight[2] = (IHDR_Height + 3) / 8;
+
+	PassWidth[3]  = (IHDR_Width  + 1) / 4;
+	PassHeight[3] = (IHDR_Height + 3) / 4;
+
+	PassWidth[4]  = (IHDR_Width  + 1) / 2;
+	PassHeight[4] = (IHDR_Height + 1) / 4;
+
+	PassWidth[5]  = (IHDR_Width  + 0) / 2;
+	PassHeight[5] = (IHDR_Height + 1) / 2;
+
+	PassWidth[6]  = (IHDR_Width  + 0) / 1;
+	PassHeight[6] = (IHDR_Height + 0) / 2;
+
+	/*
+	 *  information for un-filtering
+	 */
+
+	switch(IHDR->ColourType)
+	{
+		case PNG_ColourType_Grey :
+		{
+			switch(IHDR->BitDepth)
+			{
+				case PNG_BitDepth_1 :
+				case PNG_BitDepth_2 :
+				case PNG_BitDepth_4 :
+				{
+					BytesPerPixel    = 1;
+					PixelsPerByte    = 8 / IHDR->BitDepth;
+
+					break;
+				}
+
+				case PNG_BitDepth_8  :
+				case PNG_BitDepth_16 :
+				{
+					BytesPerPixel    = (IHDR->BitDepth / 8) * PNG_NumColourComponents_Grey;
+					PixelsPerByte    = 1;
+
+					break;
+				}
+
+				default :
+				{
+					return(qfalse);
+				}
+			}
+
+			break;
+		}
+
+		case PNG_ColourType_True :
+		{
+			switch(IHDR->BitDepth)
+			{
+				case PNG_BitDepth_8  :
+				case PNG_BitDepth_16 :
+				{
+					BytesPerPixel    = (IHDR->BitDepth / 8) * PNG_NumColourComponents_True;
+					PixelsPerByte    = 1;
+
+					break;
+				}
+
+				default :
+				{
+					return(qfalse);
+				}
+			}
+
+			break;
+		}
+
+		case PNG_ColourType_Indexed :
+		{
+			switch(IHDR->BitDepth)
+			{
+				case PNG_BitDepth_1 :
+				case PNG_BitDepth_2 :
+				case PNG_BitDepth_4 :
+				{
+					BytesPerPixel    = 1;
+					PixelsPerByte    = 8 / IHDR->BitDepth;
+
+					break;
+				}
+
+				case PNG_BitDepth_8 :
+				{
+					BytesPerPixel    = PNG_NumColourComponents_Indexed;
+					PixelsPerByte    = 1;
+
+					break;
+				}
+
+				default :
+				{
+					return(qfalse);
+				}
+			}
+
+			break;
+		}
+
+		case PNG_ColourType_GreyAlpha :
+		{
+			switch(IHDR->BitDepth)
+			{
+				case PNG_BitDepth_8 :
+				case PNG_BitDepth_16 :
+				{
+					BytesPerPixel    = (IHDR->BitDepth / 8) * PNG_NumColourComponents_GreyAlpha;
+					PixelsPerByte    = 1;
+
+					break;
+				}
+
+				default :
+				{
+					return(qfalse);
+				}
+			}
+
+			break;
+		}
+
+		case PNG_ColourType_TrueAlpha :
+		{
+			switch(IHDR->BitDepth)
+			{
+				case PNG_BitDepth_8 :
+				case PNG_BitDepth_16 :
+				{
+					BytesPerPixel    = (IHDR->BitDepth / 8) * PNG_NumColourComponents_TrueAlpha;
+					PixelsPerByte    = 1;
+
+					break;
+				}
+
+				default :
+				{
+					return(qfalse);
+				}
+			}
+
+			break;
+		}
+
+		default :
+		{
+			return(qfalse);
+		}
+	}
+
+	/*
+	 *  Calculate the size of the scanlines per pass
+	 */
+
+	for(a = 0; a < PNG_Adam7_NumPasses; a++)
+	{
+		BytesPerScanline[a] = (PassWidth[a] * BytesPerPixel + (PixelsPerByte - 1)) / PixelsPerByte;
+	}
+
+	/*
+	 *  Calculate the size of all passes
+	 */
+
+	TargetLength = 0;
+
+	for(a = 0; a < PNG_Adam7_NumPasses; a++)
+	{
+		TargetLength += ((BytesPerScanline[a] + (BytesPerScanline[a] ? 1 : 0)) * PassHeight[a]);
+	}
+
+	/*
+	 *  Check if we have enough data for the whole image.
+	 */
+
+	if(!(DecompressedDataLength == TargetLength))
+	{
+		return(qfalse);
+	}
+
+	/*
+	 *  Unfilter the image.
+	 */
+
+	DecompPtr = DecompressedData;
+
+	for(a = 0; a < PNG_Adam7_NumPasses; a++)
+	{
+		if(!UnfilterImage(DecompPtr, PassHeight[a], BytesPerScanline[a], BytesPerPixel))
+		{
+			return(qfalse);
+		}
+
+		DecompPtr += ((BytesPerScanline[a] + (BytesPerScanline[a] ? 1 : 0)) * PassHeight[a]);
+	}
+
+	/*
+	 *  Set the working pointers to the beginning of the buffers.
+	 */
+
+	DecompPtr = DecompressedData;
+
+	/*
+	 *  Create the output image.
+	 */
+
+	for(a = 0; a < PNG_Adam7_NumPasses; a++)
+	{
+		for(h = 0; h < PassHeight[a]; h++)
+		{
+			/*
+			 *  Count the pixels on the scanline for those multipixel bytes
+			 */
+
+			uint32_t CurrPixel;
+
+			/*
+			 *  skip FilterType
+			 *  but only when the pass has a width bigger than zero
+			 */
+
+			if(BytesPerScanline[a])
+			{
+				DecompPtr++;
+			}
+
+			/*
+			 *  Reset the pixel count.
+			 */
+
+			CurrPixel = 0;
+
+			for(w = 0; w < (BytesPerScanline[a] / BytesPerPixel); w++)
+			{
+				if(PixelsPerByte > 1)
+				{
+					uint8_t  Mask;
+					uint32_t Shift;
+					uint8_t  SinglePixel;
+
+					for(p = 0; p < PixelsPerByte; p++)
+					{
+						if(CurrPixel < PassWidth[a])
+						{
+							Mask  = (1 << IHDR->BitDepth) - 1;
+							Shift = (PixelsPerByte - 1 - p) * IHDR->BitDepth;
+
+							SinglePixel = ((DecompPtr[0] & (Mask << Shift)) >> Shift);
+
+							OutPtr = OutBuffer + (((((h * HSkip[a]) + HOffset[a]) * IHDR_Width) + ((CurrPixel * WSkip[a]) + WOffset[a])) * Q3IMAGE_BYTESPERPIXEL);
+
+							if(!ConvertPixel(IHDR, OutPtr, &SinglePixel, HasTransparentColour, TransparentColour, OutPal))
+							{
+								return(qfalse);
+							}
+
+							CurrPixel++;
+						}
+					}
+
+				}
+				else
+				{
+					OutPtr = OutBuffer + (((((h * HSkip[a]) + HOffset[a]) * IHDR_Width) + ((w * WSkip[a]) + WOffset[a])) * Q3IMAGE_BYTESPERPIXEL);
+
+					if(!ConvertPixel(IHDR, OutPtr, DecompPtr, HasTransparentColour, TransparentColour, OutPal))
+					{
+						return(qfalse);
+					}
+				}
+
+				DecompPtr += BytesPerPixel;
+			}
+		}
+	}
+
+	return(qtrue);
+}
+
+/*
+ *  The PNG loader
+ */
+
+void R_LoadPNG(const char *name, byte **pic, int *width, int *height)
+{
+	struct BufferedFile *ThePNG;
+	byte *OutBuffer;
+	uint8_t *Signature;
+	struct PNG_ChunkHeader *CH;
+	uint32_t ChunkHeaderLength;
+	uint32_t ChunkHeaderType;
+	struct PNG_Chunk_IHDR *IHDR;
+	uint32_t IHDR_Width;
+	uint32_t IHDR_Height;
+	PNG_ChunkCRC *CRC;
+	uint8_t *InPal;
+	uint8_t *DecompressedData;
+	uint32_t DecompressedDataLength;
+	uint32_t i;
+
+	/*
+	 *  palette with 256 RGBA entries
+	 */
+
+	uint8_t OutPal[1024];
+
+	/*
+	 *  transparent colour from the tRNS chunk
+	 */
+
+	qboolean HasTransparentColour = qfalse;
+	uint8_t TransparentColour[6] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
+
+	/*
+	 *  input verification
+	 */
+
+	if(!(name && pic))
+	{
+		return;
+	}
+
+	/*
+	 *  Zero out return values.
+	 */
+
+	*pic = NULL;
+
+	if(width)
+	{
+		*width = 0;
+	}
+
+	if(height)
+	{
+		*height = 0;
+	}
+
+	/*
+	 *  Read the file.
+	 */
+
+	ThePNG = ReadBufferedFile(name);
+	if(!ThePNG)
+	{
+		return;
+	}           
+
+	/*
+	 *  Read the siganture of the file.
+	 */
+
+	Signature = BufferedFileRead(ThePNG, PNG_Signature_Size);
+	if(!Signature)
+	{
+		CloseBufferedFile(ThePNG);
+
+		return;
+	}
+
+	/*
+	 *  Is it a PNG?
+	 */
+
+	if(memcmp(Signature, PNG_Signature, PNG_Signature_Size))
+	{
+		CloseBufferedFile(ThePNG);
+
+		return; 
+	}
+
+	/*
+	 *  Read the first chunk-header.
+	 */
+
+	CH = BufferedFileRead(ThePNG, PNG_ChunkHeader_Size);
+	if(!CH)
+	{
+		CloseBufferedFile(ThePNG);
+
+		return; 
+	}
+
+	/*
+	 *  PNG multi-byte types are in Big Endian
+	 */
+
+	ChunkHeaderLength = BigLong(CH->Length);
+	ChunkHeaderType   = BigLong(CH->Type);
+
+	/*
+	 *  Check if the first chunk is an IHDR.
+	 */
+
+	if(!((ChunkHeaderType == PNG_ChunkType_IHDR) && (ChunkHeaderLength == PNG_Chunk_IHDR_Size)))
+	{
+		CloseBufferedFile(ThePNG);
+
+		return; 
+	}
+
+	/*
+	 *  Read the IHDR.
+	 */ 
+
+	IHDR = BufferedFileRead(ThePNG, PNG_Chunk_IHDR_Size);
+	if(!IHDR)
+	{
+		CloseBufferedFile(ThePNG);
+
+		return; 
+	}
+
+	/*
+	 *  Read the CRC for IHDR
+	 */
+
+	CRC = BufferedFileRead(ThePNG, PNG_ChunkCRC_Size);
+	if(!CRC)
+	{
+		CloseBufferedFile(ThePNG);
+
+		return; 
+	}
+
+	/*
+	 *  Here we could check the CRC if we wanted to.
+	 */
+
+	/*
+	 *  multi-byte type swapping
+	 */
+
+	IHDR_Width  = BigLong(IHDR->Width);
+	IHDR_Height = BigLong(IHDR->Height);
+
+	/*
+	 *  Check if Width and Height are valid.
+	 */
+
+	if(!((IHDR_Width > 0) && (IHDR_Height > 0))
+	|| IHDR_Width > INT_MAX / Q3IMAGE_BYTESPERPIXEL / IHDR_Height)
+	{
+		CloseBufferedFile(ThePNG);
+
+		Com_Printf(S_COLOR_YELLOW "%s: invalid image size\n", name);
+
+		return; 
+	}
+
+	/*
+	 *  Do we need to check if the dimensions of the image are valid for Quake3?
+	 */
+
+	/*
+	 *  Check if CompressionMethod and FilterMethod are valid.
+	 */
+
+	if(!((IHDR->CompressionMethod == PNG_CompressionMethod_0) && (IHDR->FilterMethod == PNG_FilterMethod_0)))
+	{
+		CloseBufferedFile(ThePNG);
+
+		return; 
+	}
+
+	/*
+	 *  Check if InterlaceMethod is valid.
+	 */
+
+	if(!((IHDR->InterlaceMethod == PNG_InterlaceMethod_NonInterlaced)  || (IHDR->InterlaceMethod == PNG_InterlaceMethod_Interlaced)))
+	{
+		CloseBufferedFile(ThePNG);
+
+		return;
+	}
+
+	/*
+	 *  Read palette for an indexed image.
+	 */
+
+	if(IHDR->ColourType == PNG_ColourType_Indexed)
+	{
+		/*
+		 *  We need the palette first.
+		 */
+
+		if(!FindChunk(ThePNG, PNG_ChunkType_PLTE))
+		{
+			CloseBufferedFile(ThePNG);
+
+			return;
+		}
+
+		/*
+		 *  Read the chunk-header.
+		 */
+
+		CH = BufferedFileRead(ThePNG, PNG_ChunkHeader_Size);
+		if(!CH)
+		{
+			CloseBufferedFile(ThePNG);
+
+			return; 
+		}
+
+		/*
+		 *  PNG multi-byte types are in Big Endian
+		 */
+
+		ChunkHeaderLength = BigLong(CH->Length);
+		ChunkHeaderType   = BigLong(CH->Type);
+
+		/*
+		 *  Check if the chunk is an PLTE.
+		 */
+
+		if(!(ChunkHeaderType == PNG_ChunkType_PLTE))
+		{
+			CloseBufferedFile(ThePNG);
+
+			return; 
+		}
+
+		/*
+		 *  Check if Length is divisible by 3
+		 */
+
+		if(ChunkHeaderLength % 3)
+		{
+			CloseBufferedFile(ThePNG);
+
+			return;   
+		}
+
+		/*
+		 *  Read the raw palette data
+		 */
+
+		InPal = BufferedFileRead(ThePNG, ChunkHeaderLength);
+		if(!InPal)
+		{
+			CloseBufferedFile(ThePNG);
+
+			return; 
+		}
+
+		/*
+		 *  Read the CRC for the palette
+		 */
+
+		CRC = BufferedFileRead(ThePNG, PNG_ChunkCRC_Size);
+		if(!CRC)
+		{
+			CloseBufferedFile(ThePNG);
+
+			return; 
+		}
+
+		/*
+		 *  Set some default values.
+		 */
+
+		for(i = 0; i < 256; i++)
+		{
+			OutPal[i * Q3IMAGE_BYTESPERPIXEL + 0] = 0x00;
+			OutPal[i * Q3IMAGE_BYTESPERPIXEL + 1] = 0x00;
+			OutPal[i * Q3IMAGE_BYTESPERPIXEL + 2] = 0x00;
+			OutPal[i * Q3IMAGE_BYTESPERPIXEL + 3] = 0xFF;  
+		}
+
+		/*
+		 *  Convert to the Quake3 RGBA-format.
+		 */
+
+		for(i = 0; i < (ChunkHeaderLength / 3); i++)
+		{
+			OutPal[i * Q3IMAGE_BYTESPERPIXEL + 0] = InPal[i*3+0];
+			OutPal[i * Q3IMAGE_BYTESPERPIXEL + 1] = InPal[i*3+1];
+			OutPal[i * Q3IMAGE_BYTESPERPIXEL + 2] = InPal[i*3+2];
+			OutPal[i * Q3IMAGE_BYTESPERPIXEL + 3] = 0xFF;
+		}
+	}
+
+	/*
+	 *  transparency information is sometimes stored in an tRNS chunk
+	 */
+
+	/*
+	 *  Let's see if there is a tRNS chunk
+	 */
+
+	if(FindChunk(ThePNG, PNG_ChunkType_tRNS))
+	{
+		uint8_t *Trans;
+
+		/*
+		 *  Read the chunk-header.
+		 */
+
+		CH = BufferedFileRead(ThePNG, PNG_ChunkHeader_Size);
+		if(!CH)
+		{
+			CloseBufferedFile(ThePNG);
+
+			return; 
+		}
+
+		/*
+		 *  PNG multi-byte types are in Big Endian
+		 */
+
+		ChunkHeaderLength = BigLong(CH->Length);
+		ChunkHeaderType   = BigLong(CH->Type);
+
+		/*
+		 *  Check if the chunk is an tRNS.
+		 */
+
+		if(!(ChunkHeaderType == PNG_ChunkType_tRNS))
+		{
+			CloseBufferedFile(ThePNG);
+
+			return; 
+		}
+
+		/*
+		 *  Read the transparency information.
+		 */
+
+		Trans = BufferedFileRead(ThePNG, ChunkHeaderLength);
+		if(!Trans)
+		{
+			CloseBufferedFile(ThePNG);
+
+			return;  
+		}
+
+		/*
+		 *  Read the CRC.
+		 */
+
+		CRC = BufferedFileRead(ThePNG, PNG_ChunkCRC_Size);
+		if(!CRC)
+		{
+			CloseBufferedFile(ThePNG);
+
+			return; 
+		}
+
+		/*
+		 *  Only for Grey, True and Indexed ColourType should tRNS exist.
+		 */
+
+		switch(IHDR->ColourType)
+		{
+			case PNG_ColourType_Grey :
+			{
+				if(!ChunkHeaderLength == 2)
+				{
+					CloseBufferedFile(ThePNG);
+
+					return;    
+				}
+
+				HasTransparentColour = qtrue;
+
+				/*
+				 *  Grey can have one colour which is completely transparent.
+				 *  This colour is always stored in 16 bits.
+				 */
+
+				TransparentColour[0] = Trans[0];
+				TransparentColour[1] = Trans[1];
+
+				break;
+			}
+
+			case PNG_ColourType_True :
+			{
+				if(!ChunkHeaderLength == 6)
+				{
+					CloseBufferedFile(ThePNG);
+
+					return;    
+				}
+
+				HasTransparentColour = qtrue;
+
+				/*
+				 *  True can have one colour which is completely transparent.
+				 *  This colour is always stored in 16 bits.
+				 */
+
+				TransparentColour[0] = Trans[0];
+				TransparentColour[1] = Trans[1];
+				TransparentColour[2] = Trans[2];
+				TransparentColour[3] = Trans[3];
+				TransparentColour[4] = Trans[4];
+				TransparentColour[5] = Trans[5];
+
+				break;
+			}
+
+			case PNG_ColourType_Indexed :
+			{
+				/*
+				 *  Maximum of 256 one byte transparency entries.
+				 */
+
+				if(ChunkHeaderLength > 256)
+				{
+					CloseBufferedFile(ThePNG);
+
+					return;    
+				}
+
+				HasTransparentColour = qtrue;
+
+				/*
+				 *  alpha values for palette entries
+				 */
+
+				for(i = 0; i < ChunkHeaderLength; i++)
+				{
+					OutPal[i * Q3IMAGE_BYTESPERPIXEL + 3] = Trans[i];
+				}
+
+				break;
+			}
+
+			/*
+			 *  All other ColourTypes should not have tRNS chunks
+			 */
+
+			default :
+			{
+				CloseBufferedFile(ThePNG);
+
+				return;
+			}
+		} 
+	}
+
+	/*
+	 *  Rewind to the start of the file.
+	 */
+
+	if(!BufferedFileRewind(ThePNG, -1))
+	{
+		CloseBufferedFile(ThePNG);
+
+		return; 
+	}
+
+	/*
+	 *  Skip the signature
+	 */
+
+	if(!BufferedFileSkip(ThePNG, PNG_Signature_Size))
+	{
+		CloseBufferedFile(ThePNG);
+
+		return; 
+	}
+
+	/*
+	 *  Decompress all IDAT chunks
+	 */
+
+	DecompressedDataLength = DecompressIDATs(ThePNG, &DecompressedData);
+	if(!(DecompressedDataLength && DecompressedData))
+	{
+		CloseBufferedFile(ThePNG);
+
+		return;
+	}
+
+	/*
+	 *  Allocate output buffer.
+	 */
+
+	OutBuffer = ri.Malloc(IHDR_Width * IHDR_Height * Q3IMAGE_BYTESPERPIXEL); 
+	if(!OutBuffer)
+	{
+		ri.Free(DecompressedData); 
+		CloseBufferedFile(ThePNG);
+
+		return;  
+	}
+
+	/*
+	 *  Interlaced and Non-interlaced images need to be handled differently.
+	 */
+
+	switch(IHDR->InterlaceMethod)
+	{
+		case PNG_InterlaceMethod_NonInterlaced :
+		{
+			if(!DecodeImageNonInterlaced(IHDR, OutBuffer, DecompressedData, DecompressedDataLength, HasTransparentColour, TransparentColour, OutPal))
+			{
+				ri.Free(OutBuffer); 
+				ri.Free(DecompressedData); 
+				CloseBufferedFile(ThePNG);
+
+				return;
+			}
+
+			break;
+		}
+
+		case PNG_InterlaceMethod_Interlaced :
+		{
+			if(!DecodeImageInterlaced(IHDR, OutBuffer, DecompressedData, DecompressedDataLength, HasTransparentColour, TransparentColour, OutPal))
+			{
+				ri.Free(OutBuffer); 
+				ri.Free(DecompressedData); 
+				CloseBufferedFile(ThePNG);
+
+				return;
+			}
+
+			break;
+		}
+
+		default :
+		{
+			ri.Free(OutBuffer); 
+			ri.Free(DecompressedData); 
+			CloseBufferedFile(ThePNG);
+
+			return;
+		}
+	}
+
+	/*
+	 *  update the pointer to the image data
+	 */
+
+	*pic = OutBuffer;
+
+	/*
+	 *  Fill width and height.
+	 */
+
+	if(width)
+	{
+		*width = IHDR_Width;
+	}
+
+	if(height)
+	{
+		*height = IHDR_Height;
+	}
+
+	/*
+	 *  DecompressedData is not needed anymore.
+	 */
+
+	ri.Free(DecompressedData); 
+
+	/*
+	 *  We have all data, so close the file.
+	 */
+
+	CloseBufferedFile(ThePNG);
+}
diff --git a/src/renderer/tr_image_tga.c b/src/renderer/tr_image_tga.c
new file mode 100644
index 00000000..2147acdc
--- /dev/null
+++ b/src/renderer/tr_image_tga.c
@@ -0,0 +1,317 @@
+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+
+This file is part of Quake III Arena source code.
+
+Quake III Arena source code 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.
+
+Quake III Arena source code 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 Quake III Arena source code; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+
+#include "tr_local.h"
+
+/*
+========================================================================
+
+TGA files are used for 24/32 bit images
+
+========================================================================
+*/
+
+typedef struct _TargaHeader {
+	unsigned char 	id_length, colormap_type, image_type;
+	unsigned short	colormap_index, colormap_length;
+	unsigned char	colormap_size;
+	unsigned short	x_origin, y_origin, width, height;
+	unsigned char	pixel_size, attributes;
+} TargaHeader;
+
+void R_LoadTGA ( const char *name, byte **pic, int *width, int *height)
+{
+	unsigned	columns, rows, numPixels;
+	byte	*pixbuf;
+	int		row, column;
+	byte	*buf_p;
+	byte	*end;
+	byte	*buffer = NULL;
+	TargaHeader	targa_header;
+	byte		*targa_rgba;
+	int length;
+
+	*pic = NULL;
+
+	if(width)
+		*width = 0;
+	if(height)
+		*height = 0;
+
+	//
+	// load the file
+	//
+	length = ri.FS_ReadFile ( ( char * ) name, (void **)&buffer);
+	if (!buffer || length < 0) {
+		return;
+	}
+
+	if(length < 18)
+	{
+		ri.Error( ERR_DROP, "LoadTGA: header too short (%s)\n", name );
+	}
+
+	buf_p = buffer;
+	end = buffer + length;
+
+	targa_header.id_length = buf_p[0];
+	targa_header.colormap_type = buf_p[1];
+	targa_header.image_type = buf_p[2];
+	
+	memcpy(&targa_header.colormap_index, &buf_p[3], 2);
+	memcpy(&targa_header.colormap_length, &buf_p[5], 2);
+	targa_header.colormap_size = buf_p[7];
+	memcpy(&targa_header.x_origin, &buf_p[8], 2);
+	memcpy(&targa_header.y_origin, &buf_p[10], 2);
+	memcpy(&targa_header.width, &buf_p[12], 2);
+	memcpy(&targa_header.height, &buf_p[14], 2);
+	targa_header.pixel_size = buf_p[16];
+	targa_header.attributes = buf_p[17];
+
+	targa_header.colormap_index = LittleShort(targa_header.colormap_index);
+	targa_header.colormap_length = LittleShort(targa_header.colormap_length);
+	targa_header.x_origin = LittleShort(targa_header.x_origin);
+	targa_header.y_origin = LittleShort(targa_header.y_origin);
+	targa_header.width = LittleShort(targa_header.width);
+	targa_header.height = LittleShort(targa_header.height);
+
+	buf_p += 18;
+
+	if (targa_header.image_type!=2 
+		&& targa_header.image_type!=10
+		&& targa_header.image_type != 3 ) 
+	{
+		ri.Error (ERR_DROP, "LoadTGA: Only type 2 (RGB), 3 (gray), and 10 (RGB) TGA images supported\n");
+	}
+
+	if ( targa_header.colormap_type != 0 )
+	{
+		ri.Error( ERR_DROP, "LoadTGA: colormaps not supported\n" );
+	}
+
+	if ( ( targa_header.pixel_size != 32 && targa_header.pixel_size != 24 ) && targa_header.image_type != 3 )
+	{
+		ri.Error (ERR_DROP, "LoadTGA: Only 32 or 24 bit images supported (no colormaps)\n");
+	}
+
+	columns = targa_header.width;
+	rows = targa_header.height;
+	numPixels = columns * rows * 4;
+
+	if(!columns || !rows || numPixels > 0x7FFFFFFF || numPixels / columns / 4 != rows)
+	{
+		ri.Error (ERR_DROP, "LoadTGA: %s has an invalid image size\n", name);
+	}
+
+
+	targa_rgba = ri.Malloc (numPixels);
+
+	if (targa_header.id_length != 0)
+	{
+		if (buf_p + targa_header.id_length > end)
+			ri.Error( ERR_DROP, "LoadTGA: header too short (%s)\n", name );
+
+		buf_p += targa_header.id_length;  // skip TARGA image comment
+	}
+	
+	if ( targa_header.image_type==2 || targa_header.image_type == 3 )
+	{ 
+		if(buf_p + columns*rows*targa_header.pixel_size/8 > end)
+		{
+			ri.Error (ERR_DROP, "LoadTGA: file truncated (%s)\n", name);
+		}
+
+		// Uncompressed RGB or gray scale image
+		for(row=rows-1; row>=0; row--) 
+		{
+			pixbuf = targa_rgba + row*columns*4;
+			for(column=0; column<columns; column++) 
+			{
+				unsigned char red,green,blue,alphabyte;
+				switch (targa_header.pixel_size) 
+				{
+					
+				case 8:
+					blue = *buf_p++;
+					green = blue;
+					red = blue;
+					*pixbuf++ = red;
+					*pixbuf++ = green;
+					*pixbuf++ = blue;
+					*pixbuf++ = 255;
+					break;
+
+				case 24:
+					blue = *buf_p++;
+					green = *buf_p++;
+					red = *buf_p++;
+					*pixbuf++ = red;
+					*pixbuf++ = green;
+					*pixbuf++ = blue;
+					*pixbuf++ = 255;
+					break;
+				case 32:
+					blue = *buf_p++;
+					green = *buf_p++;
+					red = *buf_p++;
+					alphabyte = *buf_p++;
+					*pixbuf++ = red;
+					*pixbuf++ = green;
+					*pixbuf++ = blue;
+					*pixbuf++ = alphabyte;
+					break;
+				default:
+					ri.Error( ERR_DROP, "LoadTGA: illegal pixel_size '%d' in file '%s'\n", targa_header.pixel_size, name );
+					break;
+				}
+			}
+		}
+	}
+	else if (targa_header.image_type==10) {   // Runlength encoded RGB images
+		unsigned char red,green,blue,alphabyte,packetHeader,packetSize,j;
+
+		red = 0;
+		green = 0;
+		blue = 0;
+		alphabyte = 0xff;
+
+		for(row=rows-1; row>=0; row--) {
+			pixbuf = targa_rgba + row*columns*4;
+			for(column=0; column<columns; ) {
+				if(buf_p + 1 > end)
+					ri.Error (ERR_DROP, "LoadTGA: file truncated (%s)\n", name);
+				packetHeader= *buf_p++;
+				packetSize = 1 + (packetHeader & 0x7f);
+				if (packetHeader & 0x80) {        // run-length packet
+					if(buf_p + targa_header.pixel_size/8 > end)
+						ri.Error (ERR_DROP, "LoadTGA: file truncated (%s)\n", name);
+					switch (targa_header.pixel_size) {
+						case 24:
+								blue = *buf_p++;
+								green = *buf_p++;
+								red = *buf_p++;
+								alphabyte = 255;
+								break;
+						case 32:
+								blue = *buf_p++;
+								green = *buf_p++;
+								red = *buf_p++;
+								alphabyte = *buf_p++;
+								break;
+						default:
+							ri.Error( ERR_DROP, "LoadTGA: illegal pixel_size '%d' in file '%s'\n", targa_header.pixel_size, name );
+							break;
+					}
+	
+					for(j=0;j<packetSize;j++) {
+						*pixbuf++=red;
+						*pixbuf++=green;
+						*pixbuf++=blue;
+						*pixbuf++=alphabyte;
+						column++;
+						if (column==columns) { // run spans across rows
+							column=0;
+							if (row>0)
+								row--;
+							else
+								goto breakOut;
+							pixbuf = targa_rgba + row*columns*4;
+						}
+					}
+				}
+				else {                            // non run-length packet
+
+					if(buf_p + targa_header.pixel_size/8*packetSize > end)
+						ri.Error (ERR_DROP, "LoadTGA: file truncated (%s)\n", name);
+					for(j=0;j<packetSize;j++) {
+						switch (targa_header.pixel_size) {
+							case 24:
+									blue = *buf_p++;
+									green = *buf_p++;
+									red = *buf_p++;
+									*pixbuf++ = red;
+									*pixbuf++ = green;
+									*pixbuf++ = blue;
+									*pixbuf++ = 255;
+									break;
+							case 32:
+									blue = *buf_p++;
+									green = *buf_p++;
+									red = *buf_p++;
+									alphabyte = *buf_p++;
+									*pixbuf++ = red;
+									*pixbuf++ = green;
+									*pixbuf++ = blue;
+									*pixbuf++ = alphabyte;
+									break;
+							default:
+								ri.Error( ERR_DROP, "LoadTGA: illegal pixel_size '%d' in file '%s'\n", targa_header.pixel_size, name );
+								break;
+						}
+						column++;
+						if (column==columns) { // pixel packet run spans across rows
+							column=0;
+							if (row>0)
+								row--;
+							else
+								goto breakOut;
+							pixbuf = targa_rgba + row*columns*4;
+						}						
+					}
+				}
+			}
+			breakOut:;
+		}
+	}
+
+#if 0 
+  // TTimo: this is the chunk of code to ensure a behavior that meets TGA specs 
+  // bit 5 set => top-down
+  if (targa_header.attributes & 0x20) {
+    unsigned char *flip = (unsigned char*)malloc (columns*4);
+    unsigned char *src, *dst;
+
+    for (row = 0; row < rows/2; row++) {
+      src = targa_rgba + row * 4 * columns;
+      dst = targa_rgba + (rows - row - 1) * 4 * columns;
+
+      memcpy (flip, src, columns*4);
+      memcpy (src, dst, columns*4);
+      memcpy (dst, flip, columns*4);
+    }
+    free (flip);
+  }
+#endif
+  // instead we just print a warning
+  if (targa_header.attributes & 0x20) {
+    ri.Printf( PRINT_WARNING, "WARNING: '%s' TGA file header declares top-down image, ignoring\n", name);
+  }
+
+  if (width)
+	  *width = columns;
+  if (height)
+	  *height = rows;
+
+  *pic = targa_rgba;
+
+  ri.FS_FreeFile (buffer);
+}
diff --git a/src/renderer/tr_local.h b/src/renderer/tr_local.h
index d1ca202f..76acb15e 100644
--- a/src/renderer/tr_local.h
+++ b/src/renderer/tr_local.h
@@ -1480,6 +1480,20 @@ void RB_MDRSurfaceAnim( md4Surface_t *surface );
 
 /*
 =============================================================
+
+IMAGE LOADERS
+
+=============================================================
+*/
+
+void R_LoadBMP( const char *name, byte **pic, int *width, int *height );
+void R_LoadJPG( const char *name, byte **pic, int *width, int *height );
+void R_LoadPCX( const char *name, byte **pic, int *width, int *height );
+void R_LoadPNG( const char *name, byte **pic, int *width, int *height );
+void R_LoadTGA( const char *name, byte **pic, int *width, int *height );
+
+/*
+=============================================================
 =============================================================
 */
 void	R_TransformModelToClip( const vec3_t src, const float *modelMatrix, const float *projectionMatrix,
diff --git a/src/sdl/sdl_glimp.c b/src/sdl/sdl_glimp.c
index 0c7bace9..57f3c353 100644
--- a/src/sdl/sdl_glimp.c
+++ b/src/sdl/sdl_glimp.c
@@ -336,6 +336,7 @@ static int GLimp_SetMode( qboolean failSafe, qboolean fullscreen )
 		SDL_GL_SetAttribute( SDL_GL_STENCIL_SIZE, tstencilbits );
 		SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 );
 
+#if 0 // See http://bugzilla.icculus.org/show_bug.cgi?id=3526
 		// If not allowing software GL, demand accelerated
 		if( !r_allowSoftwareGL->integer )
 		{
@@ -345,6 +346,7 @@ static int GLimp_SetMode( qboolean failSafe, qboolean fullscreen )
 						"visual with libSDL < 1.2.10\n" );
 			}
 		}
+#endif
 
 		if( SDL_GL_SetAttribute( SDL_GL_SWAP_CONTROL, r_swapInterval->integer ) < 0 )
 			ri.Printf( PRINT_ALL, "r_swapInterval requires libSDL >= 1.2.10\n" );