Compiled, linked, now to make it work!

src/TODO

@@ -4,3 +4,6 @@ so does wl_menu.c
 * would it not make sense to remove bufferseg from id_ca.c?
 * menu code is a mess, always does things differently than the rest of the
 code, it really needs to be cleaned up
+* id_ca.c cache code: nice idea but messy and maybe can be fixed 
+in an effort to not allocate everything to memory and forget about it
+* remove virtualreality

src/id_ca.c

@@ -41,8 +41,6 @@ void			*grsegs[NUMCHUNKS];
 byte			grneeded[NUMCHUNKS];
 byte		ca_levelbit,ca_levelnum;
 
-memptr bufferseg;
-
 /*
 =============================================================================
 
@@ -843,13 +841,16 @@ void CAL_ExpandGrChunk (int chunk, byte *source)
 ======================
 */
 
-void CA_CacheGrChunk (int chunk)
+void CA_CacheGrChunk(int chunk)
 {
 	long	pos,compressed;
 	memptr	bigbufferseg;
 	byte	*source;
 	int		next;
 
+	if ( (grhandle == 0) || (grhandle == -1) ) /* make sure this works ok */
+		return;
+		
 	grneeded[chunk] |= ca_levelbit;	/* make sure it doesn't get removed */
 	if (grsegs[chunk])
 	{
@@ -873,23 +874,14 @@ void CA_CacheGrChunk (int chunk)
 
 	lseek(grhandle,pos,SEEK_SET);
 
-	if (compressed<=BUFFERSIZE)
-	{
-		CA_FarRead(grhandle,bufferseg,compressed);
-		source = bufferseg;
-	}
-	else
-	{
-		MM_GetPtr(&bigbufferseg,compressed);
-		MM_SetLock (&bigbufferseg,true);
-		CA_FarRead(grhandle,bigbufferseg,compressed);
-		source = bigbufferseg;
-	}
+	MM_GetPtr(&bigbufferseg,compressed);
+	MM_SetLock (&bigbufferseg,true);
+	CA_FarRead(grhandle,bigbufferseg,compressed);
+	source = bigbufferseg;
 
 	CAL_ExpandGrChunk (chunk,source);
 
-	if (compressed>BUFFERSIZE)
-		MM_FreePtr(&bigbufferseg);
+	MM_FreePtr(&bigbufferseg);
 }
 
 
@@ -978,14 +970,9 @@ void CA_CacheMap(int mapnum)
 		dest = (memptr)&mapsegs[plane];
 
 		lseek(maphandle,pos,SEEK_SET);
-		if (compressed<=BUFFERSIZE)
-			source = bufferseg;
-		else
-		{
-			MM_GetPtr(&bigbufferseg,compressed);
-			MM_SetLock (&bigbufferseg,true);
-			source = bigbufferseg;
-		}
+		MM_GetPtr(&bigbufferseg,compressed);
+		MM_SetLock (&bigbufferseg,true);
+		source = bigbufferseg;
 
 		CA_FarRead(maphandle,(byte *)source,compressed);
 		/*
@@ -1002,8 +989,7 @@ void CA_CacheMap(int mapnum)
 		((mapfiletype *)tinf)->RLEWtag);
 		MM_FreePtr (&buffer2seg);
 
-		if (compressed>BUFFERSIZE)
-			MM_FreePtr(&bigbufferseg);
+		MM_FreePtr(&bigbufferseg);
 	}
 }
 
@@ -1022,6 +1008,7 @@ void CA_CacheMap(int mapnum)
 
 void CA_UpLevel (void)
 {
+/*
 	int	i;
 
 	if (ca_levelnum==7)
@@ -1032,6 +1019,7 @@ void CA_UpLevel (void)
 			MM_SetPurge ((memptr)&grsegs[i],3);
 	ca_levelbit<<=1;
 	ca_levelnum++;
+*/
 }
 
 //===========================================================================
@@ -1049,11 +1037,13 @@ void CA_UpLevel (void)
 
 void CA_DownLevel (void)
 {
+/*
 	if (!ca_levelnum)
 		Quit ("CA_DownLevel: Down past level 0!");
 	ca_levelbit>>=1;
 	ca_levelnum--;
 	CA_CacheMarks();
+*/
 }
 
 //===========================================================================
@@ -1067,7 +1057,7 @@ void CA_DownLevel (void)
 =
 ======================
 */
-
+#if 0
 void CA_ClearMarks (void)
 {
 	int i;
@@ -1075,7 +1065,7 @@ void CA_ClearMarks (void)
 	for (i=0;i<NUMCHUNKS;i++)
 		grneeded[i]&=~ca_levelbit;
 }
-
+#endif
 
 //===========================================================================
 
@@ -1088,14 +1078,14 @@ void CA_ClearMarks (void)
 =
 ======================
 */
-
+#if 0
 void CA_ClearAllMarks (void)
 {
 	memset (grneeded,0,sizeof(grneeded));
 	ca_levelbit = 1;
 	ca_levelnum = 0;
 }
-
+#endif
 
 //===========================================================================
 
@@ -1106,7 +1096,7 @@ void CA_ClearAllMarks (void)
 =
 ======================
 */
-
+#if 0
 void CA_SetGrPurge (void)
 {
 	int i;
@@ -1120,7 +1110,7 @@ void CA_SetGrPurge (void)
 		if (grsegs[i])
 			MM_SetPurge ((memptr)&grsegs[i],3);
 }
-
+#endif
 /*
 ======================
 =
@@ -1130,7 +1120,7 @@ void CA_SetGrPurge (void)
 =
 ======================
 */
-
+#if 0
 void CA_SetAllPurge (void)
 {
 	int i;
@@ -1148,10 +1138,10 @@ void CA_SetAllPurge (void)
 //
 	CA_SetGrPurge ();
 }
-
+#endif
 
 //===========================================================================
-
+#if 0
 /*
 ======================
 =
@@ -1265,6 +1255,7 @@ void CA_CacheMarks (void)
 
 		}
 }
+#endif
 
 void CA_CannotOpen(char *string)
 {
@@ -1297,7 +1288,6 @@ void CA_CannotOpen(char *string)
 
 void MM_Startup (void)
 {
-	MM_GetPtr (&bufferseg, BUFFERSIZE);
 }
 
 /*
@@ -1312,8 +1302,6 @@ void MM_Startup (void)
 
 void MM_Shutdown(void)
 {
-	MM_FreePtr(bufferseg);
-	bufferseg = NULL;
 }
 
 /*

src/id_ca.h

@@ -63,9 +63,12 @@ void CA_SetGrPurge (void);
 void CA_CacheAudioChunk (int chunk);
 void CA_LoadAllSounds (void);
 
+void CA_CacheMap (int mapnum);
+void CA_CacheGrChunk (int chunk);
+
 void CA_UpLevel (void);
 void CA_DownLevel (void);
-
+/*
 void CA_SetAllPurge (void);
 
 void CA_ClearMarks (void);
@@ -73,15 +76,11 @@ void CA_ClearAllMarks (void);
 
 #define CA_MarkGrChunk(chunk)	grneeded[chunk]|=ca_levelbit
 
-void CA_CacheGrChunk (int chunk);
-void CA_CacheMap (int mapnum);
-
 void CA_CacheMarks (void);
+*/
 
 void CA_CacheScreen (int chunk);
 
-#define	BUFFERSIZE		0x1000		// miscelanious, allways available buffer
-
 //==========================================================================
 
 void MM_Startup (void);

src/id_vh.c

@@ -111,7 +111,7 @@ void VWB_Vlin(int y1, int y2, int x, int color)
 
 void VW_UpdateScreen(void)
 {
-	VH_UpdateScreen ();
+	VL_UpdateScreen ();
 }
 
 /*

src/id_vh.h

@@ -26,11 +26,6 @@ extern	byte	fontcolor;
 extern	int	fontnumber;
 extern	int	px,py;
 
-//
-// Double buffer management routines
-//
-
-int	 VW_MarkUpdateBlock (int x1, int y1, int x2, int y2);
 void VW_UpdateScreen (void);
 
 //
@@ -52,7 +47,6 @@ extern byte gamepal;
 
 #define VW_Startup		VL_Startup
 #define VW_Shutdown		VL_Shutdown
-#define VW_SetScreen	VL_SetScreen
 #define VW_Bar			VL_Bar
 #define VW_Plot			VL_Plot
 #define VW_Hlin(x,z,y,c)	VL_Hlin(x,y,(z)-(x)+1,c)
@@ -61,15 +55,14 @@ extern byte gamepal;
 #define VW_WaitVBL		VL_WaitVBL
 #define VW_FadeIn()		VL_FadeIn(0,255,&gamepal,30);
 #define VW_FadeOut()	VL_FadeOut(0,255,0,0,0,30);
-#define VW_ScreenToScreen	VL_ScreenToScreen
 void	VW_MeasurePropString(char *string, word *width, word *height);
 
 #define LatchDrawChar(x,y,p) VL_LatchToScreen(latchpics[0]+(p)*16,2,8,x,y)
 #define LatchDrawTile(x,y,p) VL_LatchToScreen(latchpics[1]+(p)*64,4,16,x,y)
 
-void LatchDrawPic (unsigned x, unsigned y, unsigned picnum);
-void 	LoadLatchMem (void);
-boolean 	FizzleFade (byte *source, unsigned width,unsigned height, unsigned frames,boolean abortable);
+void LatchDrawPic(unsigned x, unsigned y, unsigned picnum);
+void LoadLatchMem(void);
+boolean FizzleFade(byte *source, unsigned width,unsigned height, unsigned frames,boolean abortable);
 
 #define NUMLATCHPICS	100
 extern	unsigned	latchpics[NUMLATCHPICS];

src/id_vl.c

@@ -2,16 +2,20 @@
 
 #include "id_heads.h"
 
-boolean		screenfaded;
+boolean	screenfaded;
 
-byte		palette1[256][3], palette2[256][3];
+byte palette1[256][3], palette2[256][3];
 
-byte *gfxbuf;
+byte *gfxbuf = NULL;
 
 void VL_WaitVBL(int vbls)
 {
 }
 
+void VL_UpdateScreen()
+{
+}
+
 /*
 =======================
 =
@@ -22,6 +26,8 @@ void VL_WaitVBL(int vbls)
 
 void VL_Startup (void)
 {
+	if (gfxbuf == NULL) 
+		gfxbuf = malloc(320 * 200 * 1);
 }
 
 /*
@@ -34,6 +40,10 @@ void VL_Startup (void)
 
 void VL_Shutdown (void)
 {
+	if (gfxbuf != NULL) {
+		free(gfxbuf);
+		gfxbuf = NULL;
+	}
 }
 
 //===========================================================================
@@ -71,7 +81,7 @@ void VL_ClearVideo (byte color)
 =================
 */
 
-void VL_FillPalette (int red, int green, int blue)
+void VL_FillPalette(int red, int green, int blue)
 {
 }
 
@@ -431,46 +441,3 @@ asm	mov	ds,ax
 	VGAWRITEMODE(0);
 #endif
 }
-
-/* ======================================================================== */
-
-#if 0
-
-/*
-=================
-=
-= VL_ScreenToScreen
-=
-=================
-*/
-
-void VL_ScreenToScreen (unsigned source, unsigned dest,int width, int height)
-{
-	VGAWRITEMODE(1);
-	VGAMAPMASK(15);
-
-asm	mov	si,[source]
-asm	mov	di,[dest]
-asm	mov	ax,[width]
-asm	mov	bx,[linewidth]
-asm	sub	bx,ax
-asm	mov	dx,[height]
-asm	mov	cx,SCREENSEG
-asm	mov	ds,cx
-asm	mov	es,cx
-
-drawline:
-asm	mov	cx,ax
-asm	rep movsb
-asm	add	si,bx
-asm	add	di,bx
-asm	dec	dx
-asm	jnz	drawline
-
-asm	mov	ax,ss
-asm	mov	ds,ax
-
-	VGAWRITEMODE(0);
-}
-
-#endif

src/id_vl.h

@@ -3,18 +3,9 @@
 
 //===========================================================================
 
-#define SCREENWIDTH		80			// default screen width in bytes
-
-#define TILEWIDTH		4
-
-//===========================================================================
-
 extern byte *gfxbuf;
 
-extern	unsigned	bufferofs;			// all drawing is reletive to this
-extern	unsigned	displayofs;	// last setscreen coordinates
-
-extern	boolean		screenfaded;
+extern boolean screenfaded;
 
 //===========================================================================
 
@@ -40,7 +31,6 @@ void VL_Vlin (int x, int y, int height, int color);
 void VL_Bar (int x, int y, int width, int height, int color);
 
 void VL_MemToLatch (byte *source, int width, int height, word dest);
-void VL_ScreenToScreen (unsigned source, unsigned dest,int width, int height);
 void VL_MemToScreen (byte *source, int width, int height, int x, int y);
 
 void VL_DrawPropString (char *str, unsigned tile8ptr, int printx, int printy);

src/wl_debug.c

@@ -154,16 +154,10 @@ void PicturePause (void)
 // vga stuff...
 //
 
-	ClearMemory ();
-	CA_SetAllPurge();
-
 	/* TODO: save picture to file */
 	
 	VL_SetPalette (&gamepal);
 
-
-	IN_Shutdown ();
-
 	VW_WaitVBL(70);
 	VW_WaitVBL(70);
 	Quit(NULL);

src/wl_def.h

@@ -712,7 +712,6 @@ extern	char		str[80],str2[20];
 
 extern	fixed		focallength;
 extern	unsigned	viewangles;
-extern	unsigned	screenofs;
 extern	int		    viewwidth;
 extern	int			viewheight;
 extern	int			centerx;

src/wl_main.c

@@ -42,7 +42,6 @@ int                     dirangle[9] = {0,ANGLES/8,2*ANGLES/8,3*ANGLES/8,4*ANGLES
 // proejection variables
 //
 fixed           focallength;
-unsigned        screenofs;
 int             viewwidth;
 int             viewheight;
 int             centerx;
@@ -1048,17 +1047,16 @@ void InitGame (void)
 	else
 		virtualreality = false;
 
-	MM_Startup ();                  // so the signon screen can be freed
-
-	SignonScreen ();
-
+	MM_Startup (); 
 	VW_Startup ();
 	IN_Startup ();
 	PM_Startup ();
 	SD_Startup ();
 	CA_Startup ();
 	US_Startup ();
-
+	
+	SignonScreen ();
+	
 //
 // build some tables
 //
@@ -1129,7 +1127,6 @@ boolean SetViewSize (unsigned width, unsigned height)
 	viewheight = height&~1;                 // must be even
 	centerx = viewwidth/2-1;
 	shootdelta = viewwidth/10;
-	screenofs = ((200-STATUSLINES-viewheight)/2*SCREENWIDTH+(320-viewwidth)/8);
 	
 	yoffset =  (200-STATUSLINES-viewheight)/2;
 	xoffset = (320-viewwidth)/2;
@@ -1196,26 +1193,28 @@ void NewViewSize (int width)
 
 void Quit (char *error)
 {
-	unsigned        finscreen;
-	memptr	screen;
+	memptr screen;
 
-	ClearMemory ();
 	if (!*error)
 	{
 	 #ifndef JAPAN
-	 CA_CacheGrChunk (ORDERSCREEN);
+	 CA_CacheGrChunk(ORDERSCREEN);
 	 screen = grsegs[ORDERSCREEN];
 	 #endif
 	 WriteConfig ();
 	}
 	else
 	{
-	 CA_CacheGrChunk (ERRORSCREEN);
+	 CA_CacheGrChunk(ERRORSCREEN);
 	 screen = grsegs[ERRORSCREEN];
 	}
-
+	
 	ShutdownId ();
 	
+	if (screen) {
+		/* blah blah */
+	}
+	
 	if (error && *error)
 		printf("Quit: %s\n", error);
 	else

src/wl_play.c

@@ -639,7 +639,6 @@ void CheckKeys (void)
 		ClearMemory ();
 		CA_CacheGrChunk (STARTFONT+1);
 		ClearSplitVWB ();
-		VW_ScreenToScreen (displayofs,bufferofs,80,160);
 
 		Message(STR_CHEATER1"\n"
 				STR_CHEATER2"\n\n"
@@ -672,7 +671,6 @@ void CheckKeys (void)
 	 ClearMemory ();
 	 CA_CacheGrChunk (STARTFONT+1);
 	 ClearSplitVWB ();
-	 VW_ScreenToScreen (displayofs,bufferofs,80,160);
 
 	 Message("Debugging keys are\nnow available!");
 	 UNCACHEGRCHUNK(STARTFONT+1);
@@ -693,7 +691,6 @@ void CheckKeys (void)
 	 ClearMemory ();
 	 CA_CacheGrChunk (STARTFONT+1);
 	 ClearSplitVWB ();
-	 VW_ScreenToScreen (displayofs,bufferofs,80,160);
 
 	 Message("Commander Keen is also\n"
 			 "available from Apogee, but\n"
@@ -733,10 +730,9 @@ void CheckKeys (void)
 	{
 		ClearMemory ();
 		ClearSplitVWB ();
-		VW_ScreenToScreen (displayofs,bufferofs,80,160);
 		US_ControlPanel(scan);
 
-		 DrawAllPlayBorderSides ();
+		DrawAllPlayBorderSides ();
 
 		if (scan == sc_F9)
 		  StartMusic ();

src/wl_text.c

@@ -556,23 +556,32 @@ void CacheLayoutGraphics (void)
 				numpages++;
 			if (ch == 'E')		// end of file, so load graphics and return
 			{
+				/*
 				CA_MarkGrChunk(H_TOPWINDOWPIC);
 				CA_MarkGrChunk(H_LEFTWINDOWPIC);
 				CA_MarkGrChunk(H_RIGHTWINDOWPIC);
 				CA_MarkGrChunk(H_BOTTOMINFOPIC);
 				CA_CacheMarks ();
+				*/
+				CA_CacheGrChunk(H_TOPWINDOWPIC);
+				CA_CacheGrChunk(H_LEFTWINDOWPIC);
+				CA_CacheGrChunk(H_RIGHTWINDOWPIC);
+				CA_CacheGrChunk(H_BOTTOMINFOPIC);
+				
 				text = textstart;
 				return;
 			}
 			if (ch == 'G')		// draw graphic command, so mark graphics
 			{
 				ParsePicCommand ();
-				CA_MarkGrChunk (picnum);
+				/* CA_MarkGrChunk (picnum); */
+				CA_CacheGrChunk(picnum);
 			}
 			if (ch == 'T')		// timed draw graphic command, so mark graphics
 			{
 				ParseTimedCommand ();
-				CA_MarkGrChunk (picnum);
+				/* CA_MarkGrChunk (picnum); */
+				CA_CacheGrChunk(picnum);
 			}
 		}
 		else
@@ -644,7 +653,8 @@ void ShowArticle (char *article)
 	text = article;
 	oldfontnumber = fontnumber;
 	fontnumber = 0;
-	CA_MarkGrChunk(STARTFONT);
+	/* CA_MarkGrChunk(STARTFONT); */
+	CA_CacheGrChunk(STARTFONT);
 	VWB_Bar (0,0,320,200,BACKCOLOR);
 	CacheLayoutGraphics ();
 	#endif