misc. cleanup:

- remove 'imageSize' global which was always yres*bytesperline and only used once
- some clearbuf() -> Bmemset() because I find the latter easier to read
- remove some clearbufs to 0 of some global arrays on init

git-svn-id: https://svn.eduke32.com/eduke32@2023 1a8010ca-5511-0410-912e-c29ae57300e0

polymer/eduke32/build/include/baselayer.h

@@ -31,7 +31,7 @@ extern int32_t startwin_idle(void *);
 // video
 extern int32_t r_usenewaspect, newaspect_enable;
 extern uint32_t r_screenxy;
-extern int32_t xres, yres, bpp, fullscreen, bytesperline, imageSize;
+extern int32_t xres, yres, bpp, fullscreen, bytesperline;
 extern intptr_t frameplace;
 extern char offscreenrendering;
 

polymer/eduke32/build/src/engine.c

@@ -7655,12 +7655,13 @@ int32_t initengine(void)
     searchit = 0; searchstat = -1;
 
     for (i=0; i<MAXPALOOKUPS; i++) palookup[i] = NULL;
-
+/*
     clearbuf(&waloff[0],(int32_t)MAXTILES,0L);
 
     clearbuf(&show2dsector[0],(int32_t)((MAXSECTORS+3)>>5),0L);
     clearbuf(&show2dsprite[0],(int32_t)((MAXSPRITES+3)>>5),0L);
     clearbuf(&show2dwall[0],(int32_t)((MAXWALLS+3)>>5),0L);
+*/
 //    automapping = 0;
 
     totalclock = 0;
@@ -7971,7 +7972,7 @@ void drawrooms(int32_t daposx, int32_t daposy, int32_t daposz,
 
     while ((numbunches > 0) && (numhits > 0))
     {
-        clearbuf(&tempbuf[0],(int32_t)((numbunches+3)>>2),0L);
+        Bmemset(tempbuf, 0, numbunches);
         tempbuf[0] = 1;
 
         closest = 0;              //Almost works, but not quite :(
@@ -13242,8 +13243,7 @@ void clearallviews(int32_t dacol)
 #endif
 
     begindrawing(); //{{{
-    //clearbufbyte((void*)frameplace,imageSize,0L);
-    Bmemset((void *)frameplace,dacol,imageSize);
+    Bmemset((void *)frameplace,dacol,bytesperline*yres);
     enddrawing();   //}}}
     //nextpage();
 

polymer/eduke32/build/src/sdlayer.c

@@ -60,7 +60,7 @@ char quitevent=0, appactive=1, novideo=0;
 
 // video
 static SDL_Surface *sdl_surface;
-int32_t xres=-1, yres=-1, bpp=0, fullscreen=0, bytesperline, imageSize;
+int32_t xres=-1, yres=-1, bpp=0, fullscreen=0, bytesperline;
 intptr_t frameplace=0;
 int32_t lockcount=0;
 char modechange=1;
@@ -1266,7 +1266,6 @@ int32_t setvideomode(int32_t x, int32_t y, int32_t c, int32_t fs)
     bpp = c;
     fullscreen = fs;
     //bytesperline = sdl_surface->pitch;
-    //imageSize = bytesperline*yres;
     numpages = c>8?2:1;
     frameplace = 0;
     lockcount = 0;
@@ -1320,7 +1319,6 @@ void begindrawing(void)
         if (offscreenrendering) return;
         frameplace = 0;
         bytesperline = 0;
-        imageSize = 0;
         modechange = 0;
         return;
     }
@@ -1337,7 +1335,6 @@ void begindrawing(void)
     if (sdl_surface->pitch != bytesperline || modechange)
     {
         bytesperline = sdl_surface->pitch;
-        imageSize = bytesperline*yres;
         setvlinebpl(bytesperline);
 
         j = 0;

polymer/eduke32/build/src/winlayer.c

@@ -111,7 +111,6 @@ int32_t yres=-1;
 int32_t fullscreen=0;
 int32_t bpp=0;
 int32_t bytesperline=0;
-int32_t imageSize=0;
 int32_t lockcount=0;
 int32_t glcolourdepth=32;
 int32_t vsync=0;
@@ -1935,7 +1934,6 @@ void begindrawing(void)
         if (offscreenrendering) return;
         frameplace = 0;
         bytesperline = 0;
-        imageSize = 0;
         modechange = 0;
         return;
     }
@@ -1960,7 +1958,6 @@ void begindrawing(void)
         bytesperline = xres|1;
     }
 
-    imageSize = bytesperline*yres;
     setvlinebpl(bytesperline);
 
     {
@@ -3230,7 +3227,6 @@ static BOOL CreateAppWindow(int32_t modenum)
 
     // bytesperline is set when framebuffer is locked
     //bytesperline = width;
-    //imageSize = bytesperline*yres;
 
     modechange = 1;
     OSD_ResizeDisplay(xres,yres);