diff options
Diffstat (limited to 'src/heretic/r_draw.c')
| -rw-r--r-- | src/heretic/r_draw.c | 498 |
1 files changed, 498 insertions, 0 deletions
diff --git a/src/heretic/r_draw.c b/src/heretic/r_draw.c new file mode 100644 index 00000000..5cb3a85e --- /dev/null +++ b/src/heretic/r_draw.c @@ -0,0 +1,498 @@ +// R_draw.c
+
+#include "DoomDef.h"
+#include "R_local.h"
+
+/*
+
+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.
+
+*/
+
+byte *viewimage; +int viewwidth, scaledviewwidth, viewheight, viewwindowx, viewwindowy; +byte *ylookup[MAXHEIGHT]; +int columnofs[MAXWIDTH]; +byte translations[3][256]; // color tables for different players +byte *tinttable; // used for translucent sprites + +/* +================== += += 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;
+byte *dc_source; // first pixel in a column (possibly virtual)
+
+int dccount; // just for profiling
+
+#ifndef __WATCOMC__ +#ifndef __i386
+#ifndef __m68k
+void R_DrawColumn (void)
+{
+ int count;
+ byte *dest;
+ fixed_t frac, 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];
+
+ fracstep = dc_iscale;
+ frac = dc_texturemid + (dc_yl-centery)*fracstep;
+
+ do
+ {
+ *dest = dc_colormap[dc_source[(frac>>FRACBITS)&127]];
+ dest += SCREENWIDTH;
+ frac += fracstep;
+ } while (count--);
+}
+#endif // __m68k +#endif // __i386 +#endif + +void R_DrawColumnLow (void)
+{
+ int count;
+ byte *dest;
+ fixed_t frac, 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);
+// dccount++;
+#endif
+
+ dest = ylookup[dc_yl] + columnofs[dc_x];
+
+ fracstep = dc_iscale;
+ frac = dc_texturemid + (dc_yl-centery)*fracstep;
+
+ do
+ {
+ *dest = dc_colormap[dc_source[(frac>>FRACBITS)&127]];
+ dest += SCREENWIDTH;
+ frac += fracstep;
+ } while (count--);
+}
+
+ +#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; + +void R_DrawFuzzColumn (void)
+{
+ int count;
+ byte *dest;
+ fixed_t frac, fracstep;
+ + if (!dc_yl)
+ dc_yl = 1;
+ if (dc_yh == viewheight-1)
+ dc_yh = viewheight - 2;
+
+ 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_DrawFuzzColumn: %i to %i at %i", dc_yl, dc_yh, dc_x);
+#endif
+
+ dest = ylookup[dc_yl] + columnofs[dc_x];
+
+ fracstep = dc_iscale;
+ frac = dc_texturemid + (dc_yl-centery)*fracstep;
+
+// OLD FUZZY INVISO SPRITE STUFF +/* do + {
+ *dest = colormaps[6*256+dest[fuzzoffset[fuzzpos]]];
+ if (++fuzzpos == FUZZTABLE)
+ fuzzpos = 0;
+ dest += SCREENWIDTH; + frac += fracstep; + } while (count--); +*/ + + do + { + *dest = tinttable[((*dest)<<8)+dc_colormap[dc_source[(frac>>FRACBITS)&127]]]; + + //*dest = dest[SCREENWIDTH*10+5]; + +// *dest = //tinttable[((*dest)<<8)+colormaps[dc_source[(frac>>FRACBITS)&127]]]; + +// *dest = dc_colormap[dc_source[(frac>>FRACBITS)&127]]; + dest += SCREENWIDTH; + frac += fracstep; + } while(count--); +} + +/* +======================== += += R_DrawTranslatedColumn += +======================== +*/ + +byte *dc_translation; +byte *translationtables; + +void R_DrawTranslatedColumn (void)
+{
+ int count;
+ byte *dest;
+ fixed_t frac, 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];
+
+ fracstep = dc_iscale;
+ frac = dc_texturemid + (dc_yl-centery)*fracstep;
+
+ do
+ {
+ *dest = dc_colormap[dc_translation[dc_source[frac>>FRACBITS]]];
+ dest += SCREENWIDTH;
+ frac += fracstep;
+ } while (count--);
+}
+ +void R_DrawTranslatedFuzzColumn (void)
+{
+ int count;
+ byte *dest;
+ fixed_t frac, 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];
+
+ fracstep = dc_iscale;
+ frac = dc_texturemid + (dc_yl-centery)*fracstep;
+
+ do
+ {
+ *dest = tinttable[((*dest)<<8) + +dc_colormap[dc_translation[dc_source[frac>>FRACBITS]]]];
+ dest += SCREENWIDTH;
+ frac += fracstep;
+ } while (count--);
+}
+ +//-------------------------------------------------------------------------- +// +// PROC R_InitTranslationTables +// +//-------------------------------------------------------------------------- + +void R_InitTranslationTables (void) +{ + int i; + + // Load tint table + tinttable = W_CacheLumpName("TINTTAB", PU_STATIC); + + // Allocate translation tables + translationtables = Z_Malloc(256*3+255, PU_STATIC, 0); + translationtables = (byte *)(( (int)translationtables + 255 )& ~255); + + // Fill out the translation tables + for(i = 0; i < 256; i++) + { + if(i >= 225 && i <= 240) + { + translationtables[i] = 114+(i-225); // yellow + translationtables[i+256] = 145+(i-225); // red + translationtables[i+512] = 190+(i-225); // blue + } + else + { + translationtables[i] = translationtables[i+256] + = translationtables[i+512] = i; + } + } +} + +/*
+================
+=
+= R_DrawSpan
+=
+================
+*/
+
+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;
+byte *ds_source; // start of a 64*64 tile image
+ +int dscount; // just for profiling
+
+#ifndef __WATCOMC__
+#ifndef __i386
+#ifndef __m68k
+void R_DrawSpan (void)
+{
+ fixed_t xfrac, yfrac;
+ byte *dest;
+ int count, 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];
+ count = ds_x2 - ds_x1;
+ do
+ {
+ spot = ((yfrac>>(16-6))&(63*64)) + ((xfrac>>16)&63);
+ *dest++ = ds_colormap[ds_source[spot]];
+ xfrac += ds_xstep;
+ yfrac += ds_ystep;
+ } while (count--);
+}
+#endif +#endif +#endif
+ +void R_DrawSpanLow (void)
+{
+ fixed_t xfrac, yfrac;
+ byte *dest;
+ int count, 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];
+ count = ds_x2 - ds_x1;
+ do
+ {
+ spot = ((yfrac>>(16-6))&(63*64)) + ((xfrac>>16)&63);
+ *dest++ = ds_colormap[ds_source[spot]];
+ xfrac += ds_xstep;
+ yfrac += ds_ystep;
+ } while (count--);
+}
+
+
+
+/*
+================
+=
+= R_InitBuffer
+=
+=================
+*/
+
+void R_InitBuffer (int width, int height)
+{
+ int i;
+
+ viewwindowx = (SCREENWIDTH-width) >> 1;
+ for (i=0 ; i<width ; i++)
+ columnofs[i] = viewwindowx + i;
+ if (width == SCREENWIDTH)
+ viewwindowy = 0;
+ else
+ viewwindowy = (SCREENHEIGHT-SBARHEIGHT-height) >> 1;
+ for (i=0 ; i<height ; i++)
+ ylookup[i] = screen + (i+viewwindowy)*SCREENWIDTH;
+}
+
+
+/*
+==================
+=
+= R_DrawViewBorder
+=
+= Draws the border around the view for different size windows
+==================
+*/
+
+boolean BorderNeedRefresh; + +void R_DrawViewBorder (void)
+{
+ byte *src, *dest;
+ int x,y;
+ + if (scaledviewwidth == SCREENWIDTH) + return; + + if(shareware) + { + src = W_CacheLumpName ("FLOOR04", PU_CACHE); + } + else + {
+ src = W_CacheLumpName ("FLAT513", PU_CACHE); + } + dest = screen;
+
+ 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);
+ }
+ }
+ for(x=viewwindowx; x < viewwindowx+viewwidth; x += 16) + { + V_DrawPatch(x, viewwindowy-4, W_CacheLumpName("bordt", PU_CACHE)); + V_DrawPatch(x, viewwindowy+viewheight, W_CacheLumpName("bordb", + PU_CACHE)); + } + for(y=viewwindowy; y < viewwindowy+viewheight; y += 16) + { + V_DrawPatch(viewwindowx-4, y, W_CacheLumpName("bordl", PU_CACHE)); + V_DrawPatch(viewwindowx+viewwidth, y, W_CacheLumpName("bordr", + PU_CACHE)); + } + V_DrawPatch(viewwindowx-4, viewwindowy-4, W_CacheLumpName("bordtl", + PU_CACHE)); + V_DrawPatch(viewwindowx+viewwidth, viewwindowy-4, + W_CacheLumpName("bordtr", PU_CACHE)); + V_DrawPatch(viewwindowx+viewwidth, viewwindowy+viewheight, + W_CacheLumpName("bordbr", PU_CACHE)); + V_DrawPatch(viewwindowx-4, viewwindowy+viewheight, + W_CacheLumpName("bordbl", PU_CACHE)); +}
+
+/*
+==================
+=
+= R_DrawTopBorder
+=
+= Draws the top border around the view for different size windows
+==================
+*/
+
+boolean BorderTopRefresh; + +void R_DrawTopBorder (void)
+{
+ byte *src, *dest;
+ int x,y;
+ + if (scaledviewwidth == SCREENWIDTH) + return; + + if(shareware) + { + src = W_CacheLumpName ("FLOOR04", PU_CACHE); + } + else + {
+ src = W_CacheLumpName ("FLAT513", PU_CACHE); + }
+ dest = screen;
+
+ for (y=0 ; y<30 ; 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);
+ }
+ }
+ if(viewwindowy < 25) + { + for(x=viewwindowx; x < viewwindowx+viewwidth; x += 16) + { + V_DrawPatch(x, viewwindowy-4, W_CacheLumpName("bordt", PU_CACHE)); + } + V_DrawPatch(viewwindowx-4, viewwindowy, W_CacheLumpName("bordl", + PU_CACHE)); + V_DrawPatch(viewwindowx+viewwidth, viewwindowy, + W_CacheLumpName("bordr", PU_CACHE)); + V_DrawPatch(viewwindowx-4, viewwindowy+16, W_CacheLumpName("bordl", + PU_CACHE)); + V_DrawPatch(viewwindowx+viewwidth, viewwindowy+16, + W_CacheLumpName("bordr", PU_CACHE)); + + V_DrawPatch(viewwindowx-4, viewwindowy-4, W_CacheLumpName("bordtl", + PU_CACHE)); + V_DrawPatch(viewwindowx+viewwidth, viewwindowy-4, + W_CacheLumpName("bordtr", PU_CACHE)); + } +}
+ +
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