diff options
Diffstat (limited to 'src/doom/r_draw.c')
| -rw-r--r-- | src/doom/r_draw.c | 44 |
1 files changed, 35 insertions, 9 deletions
diff --git a/src/doom/r_draw.c b/src/doom/r_draw.c index d75aec3b..1b6420d9 100644 --- a/src/doom/r_draw.c +++ b/src/doom/r_draw.c @@ -77,7 +77,10 @@ int columnofs[MAXWIDTH]; // byte translations[3][256]; - +// Backing buffer containing the bezel drawn around the screen and +// surrounding background. + +static byte *background_buffer = NULL; // @@ -815,20 +818,39 @@ void R_FillBackScreen (void) char *name1 = DEH_String("FLOOR7_2"); // DOOM II border patch. - char *name2 = DEH_String("GRNROCK"); + char *name2 = DEH_String("GRNROCK"); + + char *name; + + // If we are running full screen, there is no need to do any of this, + // and the background buffer can be freed if it was previously in use. + + if (scaledviewwidth == SCREENWIDTH) + { + if (background_buffer != NULL) + { + Z_Free(background_buffer); + background_buffer = NULL; + } - char* name; - - if (scaledviewwidth == 320) return; + } + + // Allocate the background buffer if necessary - if ( gamemode == commercial) + if (background_buffer == NULL) + { + background_buffer = Z_Malloc(SCREENWIDTH * (SCREENHEIGHT - SBARHEIGHT), + PU_STATIC, NULL); + } + + if (gamemode == commercial) name = name2; else name = name1; src = W_CacheLumpName(name, PU_CACHE); - dest = screens[1]; + dest = background_buffer; for (y=0 ; y<SCREENHEIGHT-SBARHEIGHT ; y++) { @@ -847,7 +869,7 @@ void R_FillBackScreen (void) // Draw screen and bezel; this is done to a separate screen buffer. - V_UseBuffer(screens[1]); + V_UseBuffer(background_buffer); patch = W_CacheLumpName(DEH_String("brdr_t"),PU_CACHE); @@ -900,7 +922,11 @@ R_VideoErase // is not optiomal, e.g. byte by byte on // a 32bit CPU, as GNU GCC/Linux libc did // at one point. - memcpy(I_VideoBuffer + ofs, screens[1] + ofs, count); + + if (background_buffer != NULL) + { + memcpy(I_VideoBuffer + ofs, background_buffer + ofs, count); + } } |