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diff --git a/src/strife/r_draw.c b/src/strife/r_draw.c
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+// Emacs style mode select -*- C++ -*-
+//-----------------------------------------------------------------------------
+//
+// Copyright(C) 1993-1996 Id Software, Inc.
+// Copyright(C) 2005 Simon Howard
+//
+// 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., 59 Temple Place - Suite 330, Boston, MA
+// 02111-1307, USA.
+//
+// DESCRIPTION:
+// The actual span/column drawing functions.
+// Here find the main potential for optimization,
+// e.g. inline assembly, different algorithms.
+//
+//-----------------------------------------------------------------------------
+
+
+
+
+#include "doomdef.h"
+#include "deh_main.h"
+
+#include "i_system.h"
+#include "z_zone.h"
+#include "w_wad.h"
+
+#include "r_local.h"
+
+// Needs access to LFB (guess what).
+#include "v_video.h"
+
+// State.
+#include "doomstat.h"
+
+
+// ?
+#define MAXWIDTH 1120
+#define MAXHEIGHT 832
+
+// status bar height at bottom of screen
+#define SBARHEIGHT 32
+
+//
+// All drawing to the view buffer is accomplished in this file.
+// The other refresh files only know about ccordinates,
+// not the architecture of the frame buffer.
+// Conveniently, the frame buffer is a linear one,
+// and we need only the base address,
+// and the total size == width*height*depth/8.,
+//
+
+
+byte* viewimage;
+int viewwidth;
+int scaledviewwidth;
+int viewheight;
+int viewwindowx;
+int viewwindowy;
+byte* ylookup[MAXHEIGHT];
+int columnofs[MAXWIDTH];
+
+// Color tables for different players,
+// translate a limited part to another
+// (color ramps used for suit colors).
+//
+byte translations[3][256];
+
+// Backing buffer containing the bezel drawn around the screen and
+// surrounding background.
+
+static byte *background_buffer = NULL;
+
+
+//
+// R_DrawColumn
+// Source is the top of the column to scale.
+//
+lighttable_t* dc_colormap;
+int dc_x;
+int dc_yl;
+int dc_yh;
+fixed_t dc_iscale;
+fixed_t dc_texturemid;
+
+// first pixel in a column (possibly virtual)
+byte* dc_source;
+
+// just for profiling
+int dccount;
+
+//
+// A column is a vertical slice/span from a wall texture that,
+// given the DOOM style restrictions on the view orientation,
+// will always have constant z depth.
+// Thus a special case loop for very fast rendering can
+// be used. It has also been used with Wolfenstein 3D.
+//
+void R_DrawColumn (void)
+{
+ int count;
+ byte* dest;
+ fixed_t frac;
+ fixed_t fracstep;
+
+ count = dc_yh - dc_yl;
+
+ // Zero length, column does not exceed a pixel.
+ if (count < 0)
+ return;
+
+#ifdef RANGECHECK
+ if ((unsigned)dc_x >= SCREENWIDTH
+ || dc_yl < 0
+ || dc_yh >= SCREENHEIGHT)
+ I_Error ("R_DrawColumn: %i to %i at %i", dc_yl, dc_yh, dc_x);
+#endif
+
+ // Framebuffer destination address.
+ // Use ylookup LUT to avoid multiply with ScreenWidth.
+ // Use columnofs LUT for subwindows?
+ dest = ylookup[dc_yl] + columnofs[dc_x];
+
+ // Determine scaling,
+ // which is the only mapping to be done.
+ fracstep = dc_iscale;
+ frac = dc_texturemid + (dc_yl-centery)*fracstep;
+
+ // Inner loop that does the actual texture mapping,
+ // e.g. a DDA-lile scaling.
+ // This is as fast as it gets.
+ do
+ {
+ // Re-map color indices from wall texture column
+ // using a lighting/special effects LUT.
+ *dest = dc_colormap[dc_source[(frac>>FRACBITS)&127]];
+
+ dest += SCREENWIDTH;
+ frac += fracstep;
+
+ } while (count--);
+}
+
+
+
+// UNUSED.
+// Loop unrolled.
+#if 0
+void R_DrawColumn (void)
+{
+ int count;
+ byte* source;
+ byte* dest;
+ byte* colormap;
+
+ unsigned frac;
+ unsigned fracstep;
+ unsigned fracstep2;
+ unsigned fracstep3;
+ unsigned fracstep4;
+
+ count = dc_yh - dc_yl + 1;
+
+ source = dc_source;
+ colormap = dc_colormap;
+ dest = ylookup[dc_yl] + columnofs[dc_x];
+
+ fracstep = dc_iscale<<9;
+ frac = (dc_texturemid + (dc_yl-centery)*dc_iscale)<<9;
+
+ fracstep2 = fracstep+fracstep;
+ fracstep3 = fracstep2+fracstep;
+ fracstep4 = fracstep3+fracstep;
+
+ while (count >= 8)
+ {
+ dest[0] = colormap[source[frac>>25]];
+ dest[SCREENWIDTH] = colormap[source[(frac+fracstep)>>25]];
+ dest[SCREENWIDTH*2] = colormap[source[(frac+fracstep2)>>25]];
+ dest[SCREENWIDTH*3] = colormap[source[(frac+fracstep3)>>25]];
+
+ frac += fracstep4;
+
+ dest[SCREENWIDTH*4] = colormap[source[frac>>25]];
+ dest[SCREENWIDTH*5] = colormap[source[(frac+fracstep)>>25]];
+ dest[SCREENWIDTH*6] = colormap[source[(frac+fracstep2)>>25]];
+ dest[SCREENWIDTH*7] = colormap[source[(frac+fracstep3)>>25]];
+
+ frac += fracstep4;
+ dest += SCREENWIDTH*8;
+ count -= 8;
+ }
+
+ while (count > 0)
+ {
+ *dest = colormap[source[frac>>25]];
+ dest += SCREENWIDTH;
+ frac += fracstep;
+ count--;
+ }
+}
+#endif
+
+
+void R_DrawColumnLow (void)
+{
+ int count;
+ byte* dest;
+ byte* dest2;
+ fixed_t frac;
+ fixed_t fracstep;
+ int x;
+
+ count = dc_yh - dc_yl;
+
+ // Zero length.
+ if (count < 0)
+ return;
+
+#ifdef RANGECHECK
+ if ((unsigned)dc_x >= SCREENWIDTH
+ || dc_yl < 0
+ || dc_yh >= SCREENHEIGHT)
+ {
+
+ I_Error ("R_DrawColumn: %i to %i at %i", dc_yl, dc_yh, dc_x);
+ }
+ // dccount++;
+#endif
+ // Blocky mode, need to multiply by 2.
+ x = dc_x << 1;
+
+ dest = ylookup[dc_yl] + columnofs[x];
+ dest2 = ylookup[dc_yl] + columnofs[x+1];
+
+ fracstep = dc_iscale;
+ frac = dc_texturemid + (dc_yl-centery)*fracstep;
+
+ do
+ {
+ // Hack. Does not work corretly.
+ *dest2 = *dest = dc_colormap[dc_source[(frac>>FRACBITS)&127]];
+ dest += SCREENWIDTH;
+ dest2 += SCREENWIDTH;
+ frac += fracstep;
+
+ } while (count--);
+}
+
+
+//
+// Spectre/Invisibility.
+//
+#define FUZZTABLE 50
+#define FUZZOFF (SCREENWIDTH)
+
+
+int fuzzoffset[FUZZTABLE] =
+{
+ FUZZOFF,-FUZZOFF,FUZZOFF,-FUZZOFF,FUZZOFF,FUZZOFF,-FUZZOFF,
+ FUZZOFF,FUZZOFF,-FUZZOFF,FUZZOFF,FUZZOFF,FUZZOFF,-FUZZOFF,
+ FUZZOFF,FUZZOFF,FUZZOFF,-FUZZOFF,-FUZZOFF,-FUZZOFF,-FUZZOFF,
+ FUZZOFF,-FUZZOFF,-FUZZOFF,FUZZOFF,FUZZOFF,FUZZOFF,FUZZOFF,-FUZZOFF,
+ FUZZOFF,-FUZZOFF,FUZZOFF,FUZZOFF,-FUZZOFF,-FUZZOFF,FUZZOFF,
+ FUZZOFF,-FUZZOFF,-FUZZOFF,-FUZZOFF,-FUZZOFF,FUZZOFF,FUZZOFF,
+ FUZZOFF,FUZZOFF,-FUZZOFF,FUZZOFF,FUZZOFF,-FUZZOFF,FUZZOFF
+};
+
+int fuzzpos = 0;
+
+
+//
+// Framebuffer postprocessing.
+// Creates a fuzzy image by copying pixels
+// from adjacent ones to left and right.
+// Used with an all black colormap, this
+// could create the SHADOW effect,
+// i.e. spectres and invisible players.
+//
+void R_DrawFuzzColumn (void)
+{
+ int count;
+ byte* dest;
+ fixed_t frac;
+ fixed_t fracstep;
+
+ // Adjust borders. Low...
+ if (!dc_yl)
+ dc_yl = 1;
+
+ // .. and high.
+ if (dc_yh == viewheight-1)
+ dc_yh = viewheight - 2;
+
+ count = dc_yh - dc_yl;
+
+ // Zero length.
+ if (count < 0)
+ return;
+
+#ifdef RANGECHECK
+ if ((unsigned)dc_x >= SCREENWIDTH
+ || dc_yl < 0 || dc_yh >= SCREENHEIGHT)
+ {
+ I_Error ("R_DrawFuzzColumn: %i to %i at %i",
+ dc_yl, dc_yh, dc_x);
+ }
+#endif
+
+ dest = ylookup[dc_yl] + columnofs[dc_x];
+
+ // Looks familiar.
+ fracstep = dc_iscale;
+ frac = dc_texturemid + (dc_yl-centery)*fracstep;
+
+ // Looks like an attempt at dithering,
+ // using the colormap #6 (of 0-31, a bit
+ // brighter than average).
+ do
+ {
+ // Lookup framebuffer, and retrieve
+ // a pixel that is either one column
+ // left or right of the current one.
+ // Add index from colormap to index.
+ *dest = colormaps[6*256+dest[fuzzoffset[fuzzpos]]];
+
+ // Clamp table lookup index.
+ if (++fuzzpos == FUZZTABLE)
+ fuzzpos = 0;
+
+ dest += SCREENWIDTH;
+
+ frac += fracstep;
+ } while (count--);
+}
+
+// low detail mode version
+
+void R_DrawFuzzColumnLow (void)
+{
+ int count;
+ byte* dest;
+ byte* dest2;
+ fixed_t frac;
+ fixed_t fracstep;
+ int x;
+
+ // Adjust borders. Low...
+ if (!dc_yl)
+ dc_yl = 1;
+
+ // .. and high.
+ if (dc_yh == viewheight-1)
+ dc_yh = viewheight - 2;
+
+ count = dc_yh - dc_yl;
+
+ // Zero length.
+ if (count < 0)
+ return;
+
+ // low detail mode, need to multiply by 2
+
+ x = dc_x << 1;
+
+#ifdef RANGECHECK
+ if ((unsigned)x >= SCREENWIDTH
+ || dc_yl < 0 || dc_yh >= SCREENHEIGHT)
+ {
+ I_Error ("R_DrawFuzzColumn: %i to %i at %i",
+ dc_yl, dc_yh, dc_x);
+ }
+#endif
+
+ dest = ylookup[dc_yl] + columnofs[x];
+ dest2 = ylookup[dc_yl] + columnofs[x+1];
+
+ // Looks familiar.
+ fracstep = dc_iscale;
+ frac = dc_texturemid + (dc_yl-centery)*fracstep;
+
+ // Looks like an attempt at dithering,
+ // using the colormap #6 (of 0-31, a bit
+ // brighter than average).
+ do
+ {
+ // Lookup framebuffer, and retrieve
+ // a pixel that is either one column
+ // left or right of the current one.
+ // Add index from colormap to index.
+ *dest = colormaps[6*256+dest[fuzzoffset[fuzzpos]]];
+ *dest2 = colormaps[6*256+dest2[fuzzoffset[fuzzpos]]];
+
+ // Clamp table lookup index.
+ if (++fuzzpos == FUZZTABLE)
+ fuzzpos = 0;
+
+ dest += SCREENWIDTH;
+ dest2 += SCREENWIDTH;
+
+ frac += fracstep;
+ } while (count--);
+}
+
+
+
+
+
+//
+// R_DrawTranslatedColumn
+// Used to draw player sprites
+// with the green colorramp mapped to others.
+// Could be used with different translation
+// tables, e.g. the lighter colored version
+// of the BaronOfHell, the HellKnight, uses
+// identical sprites, kinda brightened up.
+//
+byte* dc_translation;
+byte* translationtables;
+
+void R_DrawTranslatedColumn (void)
+{
+ int count;
+ byte* dest;
+ fixed_t frac;
+ fixed_t fracstep;
+
+ count = dc_yh - dc_yl;
+ if (count < 0)
+ return;
+
+#ifdef RANGECHECK
+ if ((unsigned)dc_x >= SCREENWIDTH
+ || dc_yl < 0
+ || dc_yh >= SCREENHEIGHT)
+ {
+ I_Error ( "R_DrawColumn: %i to %i at %i",
+ dc_yl, dc_yh, dc_x);
+ }
+
+#endif
+
+
+ dest = ylookup[dc_yl] + columnofs[dc_x];
+
+ // Looks familiar.
+ fracstep = dc_iscale;
+ frac = dc_texturemid + (dc_yl-centery)*fracstep;
+
+ // Here we do an additional index re-mapping.
+ do
+ {
+ // Translation tables are used
+ // to map certain colorramps to other ones,
+ // used with PLAY sprites.
+ // Thus the "green" ramp of the player 0 sprite
+ // is mapped to gray, red, black/indigo.
+ *dest = dc_colormap[dc_translation[dc_source[frac>>FRACBITS]]];
+ dest += SCREENWIDTH;
+
+ frac += fracstep;
+ } while (count--);
+}
+
+void R_DrawTranslatedColumnLow (void)
+{
+ int count;
+ byte* dest;
+ byte* dest2;
+ fixed_t frac;
+ fixed_t fracstep;
+ int x;
+
+ count = dc_yh - dc_yl;
+ if (count < 0)
+ return;
+
+ // low detail, need to scale by 2
+ x = dc_x << 1;
+
+#ifdef RANGECHECK
+ if ((unsigned)x >= SCREENWIDTH
+ || dc_yl < 0
+ || dc_yh >= SCREENHEIGHT)
+ {
+ I_Error ( "R_DrawColumn: %i to %i at %i",
+ dc_yl, dc_yh, x);
+ }
+
+#endif
+
+
+ dest = ylookup[dc_yl] + columnofs[x];
+ dest2 = ylookup[dc_yl] + columnofs[x+1];
+
+ // Looks familiar.
+ fracstep = dc_iscale;
+ frac = dc_texturemid + (dc_yl-centery)*fracstep;
+
+ // Here we do an additional index re-mapping.
+ do
+ {
+ // Translation tables are used
+ // to map certain colorramps to other ones,
+ // used with PLAY sprites.
+ // Thus the "green" ramp of the player 0 sprite
+ // is mapped to gray, red, black/indigo.
+ *dest = dc_colormap[dc_translation[dc_source[frac>>FRACBITS]]];
+ *dest2 = dc_colormap[dc_translation[dc_source[frac>>FRACBITS]]];
+ dest += SCREENWIDTH;
+ dest2 += SCREENWIDTH;
+
+ frac += fracstep;
+ } while (count--);
+}
+
+
+
+
+//
+// R_InitTranslationTables
+// Creates the translation tables to map
+// the green color ramp to gray, brown, red.
+// Assumes a given structure of the PLAYPAL.
+// Could be read from a lump instead.
+//
+void R_InitTranslationTables (void)
+{
+ int i;
+
+ translationtables = Z_Malloc (256*3, PU_STATIC, 0);
+
+ // translate just the 16 green colors
+ for (i=0 ; i<256 ; i++)
+ {
+ if (i >= 0x70 && i<= 0x7f)
+ {
+ // map green ramp to gray, brown, red
+ translationtables[i] = 0x60 + (i&0xf);
+ translationtables [i+256] = 0x40 + (i&0xf);
+ translationtables [i+512] = 0x20 + (i&0xf);
+ }
+ else
+ {
+ // Keep all other colors as is.
+ translationtables[i] = translationtables[i+256]
+ = translationtables[i+512] = i;
+ }
+ }
+}
+
+
+
+
+//
+// R_DrawSpan
+// With DOOM style restrictions on view orientation,
+// the floors and ceilings consist of horizontal slices
+// or spans with constant z depth.
+// However, rotation around the world z axis is possible,
+// thus this mapping, while simpler and faster than
+// perspective correct texture mapping, has to traverse
+// the texture at an angle in all but a few cases.
+// In consequence, flats are not stored by column (like walls),
+// and the inner loop has to step in texture space u and v.
+//
+int ds_y;
+int ds_x1;
+int ds_x2;
+
+lighttable_t* ds_colormap;
+
+fixed_t ds_xfrac;
+fixed_t ds_yfrac;
+fixed_t ds_xstep;
+fixed_t ds_ystep;
+
+// start of a 64*64 tile image
+byte* ds_source;
+
+// just for profiling
+int dscount;
+
+
+//
+// Draws the actual span.
+void R_DrawSpan (void)
+{
+ fixed_t xfrac;
+ fixed_t yfrac;
+ byte* dest;
+ int count;
+ int spot;
+
+#ifdef RANGECHECK
+ if (ds_x2 < ds_x1
+ || ds_x1<0
+ || ds_x2>=SCREENWIDTH
+ || (unsigned)ds_y>SCREENHEIGHT)
+ {
+ I_Error( "R_DrawSpan: %i to %i at %i",
+ ds_x1,ds_x2,ds_y);
+ }
+// dscount++;
+#endif
+
+
+ xfrac = ds_xfrac;
+ yfrac = ds_yfrac;
+
+ dest = ylookup[ds_y] + columnofs[ds_x1];
+
+ // We do not check for zero spans here?
+ count = ds_x2 - ds_x1;
+
+ do
+ {
+ // Current texture index in u,v.
+ spot = ((yfrac>>(16-6))&(63*64)) + ((xfrac>>16)&63);
+
+ // Lookup pixel from flat texture tile,
+ // re-index using light/colormap.
+ *dest++ = ds_colormap[ds_source[spot]];
+
+ // Next step in u,v.
+ xfrac += ds_xstep;
+ yfrac += ds_ystep;
+
+ } while (count--);
+}
+
+
+
+// UNUSED.
+// Loop unrolled by 4.
+#if 0
+void R_DrawSpan (void)
+{
+ unsigned position, step;
+
+ byte* source;
+ byte* colormap;
+ byte* dest;
+
+ unsigned count;
+ usingned spot;
+ unsigned value;
+ unsigned temp;
+ unsigned xtemp;
+ unsigned ytemp;
+
+ position = ((ds_xfrac<<10)&0xffff0000) | ((ds_yfrac>>6)&0xffff);
+ step = ((ds_xstep<<10)&0xffff0000) | ((ds_ystep>>6)&0xffff);
+
+ source = ds_source;
+ colormap = ds_colormap;
+ dest = ylookup[ds_y] + columnofs[ds_x1];
+ count = ds_x2 - ds_x1 + 1;
+
+ while (count >= 4)
+ {
+ ytemp = position>>4;
+ ytemp = ytemp & 4032;
+ xtemp = position>>26;
+ spot = xtemp | ytemp;
+ position += step;
+ dest[0] = colormap[source[spot]];
+
+ ytemp = position>>4;
+ ytemp = ytemp & 4032;
+ xtemp = position>>26;
+ spot = xtemp | ytemp;
+ position += step;
+ dest[1] = colormap[source[spot]];
+
+ ytemp = position>>4;
+ ytemp = ytemp & 4032;
+ xtemp = position>>26;
+ spot = xtemp | ytemp;
+ position += step;
+ dest[2] = colormap[source[spot]];
+
+ ytemp = position>>4;
+ ytemp = ytemp & 4032;
+ xtemp = position>>26;
+ spot = xtemp | ytemp;
+ position += step;
+ dest[3] = colormap[source[spot]];
+
+ count -= 4;
+ dest += 4;
+ }
+ while (count > 0)
+ {
+ ytemp = position>>4;
+ ytemp = ytemp & 4032;
+ xtemp = position>>26;
+ spot = xtemp | ytemp;
+ position += step;
+ *dest++ = colormap[source[spot]];
+ count--;
+ }
+}
+#endif
+
+
+//
+// Again..
+//
+void R_DrawSpanLow (void)
+{
+ fixed_t xfrac;
+ fixed_t yfrac;
+ byte* dest;
+ int count;
+ int spot;
+
+#ifdef RANGECHECK
+ if (ds_x2 < ds_x1
+ || ds_x1<0
+ || ds_x2>=SCREENWIDTH
+ || (unsigned)ds_y>SCREENHEIGHT)
+ {
+ I_Error( "R_DrawSpan: %i to %i at %i",
+ ds_x1,ds_x2,ds_y);
+ }
+// dscount++;
+#endif
+
+ xfrac = ds_xfrac;
+ yfrac = ds_yfrac;
+
+ count = (ds_x2 - ds_x1);
+
+ // Blocky mode, need to multiply by 2.
+ ds_x1 <<= 1;
+ ds_x2 <<= 1;
+
+ dest = ylookup[ds_y] + columnofs[ds_x1];
+
+ do
+ {
+ spot = ((yfrac>>(16-6))&(63*64)) + ((xfrac>>16)&63);
+ // Lowres/blocky mode does it twice,
+ // while scale is adjusted appropriately.
+ *dest++ = ds_colormap[ds_source[spot]];
+ *dest++ = ds_colormap[ds_source[spot]];
+
+ xfrac += ds_xstep;
+ yfrac += ds_ystep;
+
+ } while (count--);
+}
+
+//
+// R_InitBuffer
+// Creats lookup tables that avoid
+// multiplies and other hazzles
+// for getting the framebuffer address
+// of a pixel to draw.
+//
+void
+R_InitBuffer
+( int width,
+ int height )
+{
+ int i;
+
+ // Handle resize,
+ // e.g. smaller view windows
+ // with border and/or status bar.
+ viewwindowx = (SCREENWIDTH-width) >> 1;
+
+ // Column offset. For windows.
+ for (i=0 ; i<width ; i++)
+ columnofs[i] = viewwindowx + i;
+
+ // Samw with base row offset.
+ if (width == SCREENWIDTH)
+ viewwindowy = 0;
+ else
+ viewwindowy = (SCREENHEIGHT-SBARHEIGHT-height) >> 1;
+
+ // Preclaculate all row offsets.
+ for (i=0 ; i<height ; i++)
+ ylookup[i] = I_VideoBuffer + (i+viewwindowy)*SCREENWIDTH;
+}
+
+
+
+
+//
+// R_FillBackScreen
+// Fills the back screen with a pattern
+// for variable screen sizes
+// Also draws a beveled edge.
+//
+void R_FillBackScreen (void)
+{
+ byte* src;
+ byte* dest;
+ int x;
+ int y;
+ patch_t* patch;
+
+ // DOOM border patch.
+ char *name1 = DEH_String("FLOOR7_2");
+
+ // DOOM II border patch.
+ 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;
+ }
+
+ return;
+ }
+
+ // Allocate the background buffer if necessary
+
+ 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 = background_buffer;
+
+ for (y=0 ; y<SCREENHEIGHT-SBARHEIGHT ; y++)
+ {
+ for (x=0 ; x<SCREENWIDTH/64 ; x++)
+ {
+ memcpy (dest, src+((y&63)<<6), 64);
+ dest += 64;
+ }
+
+ if (SCREENWIDTH&63)
+ {
+ memcpy (dest, src+((y&63)<<6), SCREENWIDTH&63);
+ dest += (SCREENWIDTH&63);
+ }
+ }
+
+ // Draw screen and bezel; this is done to a separate screen buffer.
+
+ V_UseBuffer(background_buffer);
+
+ patch = W_CacheLumpName(DEH_String("brdr_t"),PU_CACHE);
+
+ for (x=0 ; x<scaledviewwidth ; x+=8)
+ V_DrawPatch(viewwindowx+x, viewwindowy-8, patch);
+ patch = W_CacheLumpName(DEH_String("brdr_b"),PU_CACHE);
+
+ for (x=0 ; x<scaledviewwidth ; x+=8)
+ V_DrawPatch(viewwindowx+x, viewwindowy+viewheight, patch);
+ patch = W_CacheLumpName(DEH_String("brdr_l"),PU_CACHE);
+
+ for (y=0 ; y<viewheight ; y+=8)
+ V_DrawPatch(viewwindowx-8, viewwindowy+y, patch);
+ patch = W_CacheLumpName(DEH_String("brdr_r"),PU_CACHE);
+
+ for (y=0 ; y<viewheight ; y+=8)
+ V_DrawPatch(viewwindowx+scaledviewwidth, viewwindowy+y, patch);
+
+ // Draw beveled edge.
+ V_DrawPatch(viewwindowx-8,
+ viewwindowy-8,
+ W_CacheLumpName(DEH_String("brdr_tl"),PU_CACHE));
+
+ V_DrawPatch(viewwindowx+scaledviewwidth,
+ viewwindowy-8,
+ W_CacheLumpName(DEH_String("brdr_tr"),PU_CACHE));
+
+ V_DrawPatch(viewwindowx-8,
+ viewwindowy+viewheight,
+ W_CacheLumpName(DEH_String("brdr_bl"),PU_CACHE));
+
+ V_DrawPatch(viewwindowx+scaledviewwidth,
+ viewwindowy+viewheight,
+ W_CacheLumpName(DEH_String("brdr_br"),PU_CACHE));
+
+ V_RestoreBuffer();
+}
+
+
+//
+// Copy a screen buffer.
+//
+void
+R_VideoErase
+( unsigned ofs,
+ int count )
+{
+ // LFB copy.
+ // This might not be a good idea if memcpy
+ // is not optiomal, e.g. byte by byte on
+ // a 32bit CPU, as GNU GCC/Linux libc did
+ // at one point.
+
+ if (background_buffer != NULL)
+ {
+ memcpy(I_VideoBuffer + ofs, background_buffer + ofs, count);
+ }
+}
+
+
+//
+// R_DrawViewBorder
+// Draws the border around the view
+// for different size windows?
+//
+void
+V_MarkRect
+( int x,
+ int y,
+ int width,
+ int height );
+
+void R_DrawViewBorder (void)
+{
+ int top;
+ int side;
+ int ofs;
+ int i;
+
+ if (scaledviewwidth == SCREENWIDTH)
+ return;
+
+ top = ((SCREENHEIGHT-SBARHEIGHT)-viewheight)/2;
+ side = (SCREENWIDTH-scaledviewwidth)/2;
+
+ // copy top and one line of left side
+ R_VideoErase (0, top*SCREENWIDTH+side);
+
+ // copy one line of right side and bottom
+ ofs = (viewheight+top)*SCREENWIDTH-side;
+ R_VideoErase (ofs, top*SCREENWIDTH+side);
+
+ // copy sides using wraparound
+ ofs = top*SCREENWIDTH + SCREENWIDTH-side;
+ side <<= 1;
+
+ for (i=1 ; i<viewheight ; i++)
+ {
+ R_VideoErase (ofs, side);
+ ofs += SCREENWIDTH;
+ }
+
+ // ?
+ V_MarkRect (0,0,SCREENWIDTH, SCREENHEIGHT-SBARHEIGHT);
+}
+
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-19 10:17:16 +0000