577 lines
12 KiB
C
577 lines
12 KiB
C
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//**************************************************************************
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//**
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//** r_draw.c : Heretic 2 : Raven Software, Corp.
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//**
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//** $RCSfile: r_draw.c,v $
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//** $Revision: 1.11 $
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//** $Date: 96/01/06 18:37:37 $
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//** $Author: bgokey $
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//**
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//**************************************************************************
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#include "h2def.h"
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#include "r_local.h"
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/*
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All drawing to the view buffer is accomplished in this file. The other refresh
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files only know about ccordinates, not the architecture of the frame buffer.
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*/
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byte *viewimage;
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int viewwidth, scaledviewwidth, viewheight, viewwindowx, viewwindowy;
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byte *ylookup[MAXHEIGHT];
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int columnofs[MAXWIDTH];
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//byte translations[3][256]; // color tables for different players
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byte *tinttable; // used for translucent sprites
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/*
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==================
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=
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= R_DrawColumn
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=
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= Source is the top of the column to scale
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=
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==================
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*/
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lighttable_t *dc_colormap;
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int dc_x;
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int dc_yl;
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int dc_yh;
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fixed_t dc_iscale;
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fixed_t dc_texturemid;
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byte *dc_source; // first pixel in a column (possibly virtual)
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int dccount; // just for profiling
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#ifndef __WATCOMC__
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#ifndef __i386
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#ifndef __m68k
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void R_DrawColumn (void)
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{
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int count;
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byte *dest;
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fixed_t frac, fracstep;
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count = dc_yh - dc_yl;
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if (count < 0)
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return;
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#ifdef RANGECHECK
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if ((unsigned)dc_x >= SCREENWIDTH || dc_yl < 0 || dc_yh >= SCREENHEIGHT)
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I_Error ("R_DrawColumn: %i to %i at %i", dc_yl, dc_yh, dc_x);
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#endif
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dest = ylookup[dc_yl] + columnofs[dc_x];
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fracstep = dc_iscale;
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frac = dc_texturemid + (dc_yl-centery)*fracstep;
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do
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{
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*dest = dc_colormap[dc_source[(frac>>FRACBITS)&127]];
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dest += SCREENWIDTH;
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frac += fracstep;
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} while (count--);
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}
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#endif // __m68k
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#endif // __i386
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#endif
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void R_DrawColumnLow (void)
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{
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int count;
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byte *dest;
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fixed_t frac, fracstep;
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count = dc_yh - dc_yl;
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if (count < 0)
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return;
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#ifdef RANGECHECK
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if ((unsigned)dc_x >= SCREENWIDTH || dc_yl < 0 || dc_yh >= SCREENHEIGHT)
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I_Error ("R_DrawColumn: %i to %i at %i", dc_yl, dc_yh, dc_x);
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// dccount++;
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#endif
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dest = ylookup[dc_yl] + columnofs[dc_x];
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fracstep = dc_iscale;
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frac = dc_texturemid + (dc_yl-centery)*fracstep;
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do
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{
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*dest = dc_colormap[dc_source[(frac>>FRACBITS)&127]];
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dest += SCREENWIDTH;
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frac += fracstep;
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} while (count--);
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}
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/*
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#define FUZZTABLE 50
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#define FUZZOFF (SCREENWIDTH)
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int fuzzoffset[FUZZTABLE] = {
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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
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};
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int fuzzpos = 0;
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*/
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#ifndef __WATCOMC__
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void R_DrawFuzzColumn (void)
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{
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int count;
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byte *dest;
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fixed_t frac, fracstep;
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if (!dc_yl)
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dc_yl = 1;
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if (dc_yh == viewheight-1)
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dc_yh = viewheight - 2;
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count = dc_yh - dc_yl;
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if (count < 0)
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return;
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#ifdef RANGECHECK
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if ((unsigned)dc_x >= SCREENWIDTH || dc_yl < 0 || dc_yh >= SCREENHEIGHT)
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I_Error ("R_DrawFuzzColumn: %i to %i at %i", dc_yl, dc_yh, dc_x);
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#endif
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dest = ylookup[dc_yl] + columnofs[dc_x];
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fracstep = dc_iscale;
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frac = dc_texturemid + (dc_yl-centery)*fracstep;
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// OLD FUZZY INVISO SPRITE STUFF
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/* do
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{
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*dest = colormaps[6*256+dest[fuzzoffset[fuzzpos]]];
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if (++fuzzpos == FUZZTABLE)
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fuzzpos = 0;
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dest += SCREENWIDTH;
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frac += fracstep;
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} while (count--);
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*/
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do
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{
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*dest = tinttable[*dest+
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(dc_colormap[dc_source[(frac>>FRACBITS)&127]]<<8)];
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dest += SCREENWIDTH;
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frac += fracstep;
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} while(count--);
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}
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#endif
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//============================================================================
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//
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// R_DrawAltFuzzColumn
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//
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//============================================================================
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void R_DrawAltFuzzColumn (void)
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{
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int count;
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byte *dest;
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fixed_t frac, fracstep;
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if (!dc_yl)
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dc_yl = 1;
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if (dc_yh == viewheight-1)
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dc_yh = viewheight - 2;
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count = dc_yh - dc_yl;
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if (count < 0)
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return;
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#ifdef RANGECHECK
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if ((unsigned)dc_x >= SCREENWIDTH || dc_yl < 0 || dc_yh >= SCREENHEIGHT)
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I_Error ("R_DrawFuzzColumn: %i to %i at %i", dc_yl, dc_yh, dc_x);
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#endif
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dest = ylookup[dc_yl] + columnofs[dc_x];
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fracstep = dc_iscale;
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frac = dc_texturemid + (dc_yl-centery)*fracstep;
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do
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{
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*dest = tinttable[((*dest)<<8)
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+dc_colormap[dc_source[(frac>>FRACBITS)&127]]];
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dest += SCREENWIDTH;
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frac += fracstep;
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} while(count--);
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}
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/*
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========================
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=
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= R_DrawTranslatedColumn
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=
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========================
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*/
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byte *dc_translation;
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byte *translationtables;
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void R_DrawTranslatedColumn (void)
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{
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int count;
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byte *dest;
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fixed_t frac, fracstep;
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count = dc_yh - dc_yl;
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if (count < 0)
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return;
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#ifdef RANGECHECK
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if ((unsigned)dc_x >= SCREENWIDTH || dc_yl < 0 || dc_yh >= SCREENHEIGHT)
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I_Error ("R_DrawColumn: %i to %i at %i", dc_yl, dc_yh, dc_x);
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#endif
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dest = ylookup[dc_yl] + columnofs[dc_x];
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fracstep = dc_iscale;
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frac = dc_texturemid + (dc_yl-centery)*fracstep;
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do
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{
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*dest = dc_colormap[dc_translation[dc_source[frac>>FRACBITS]]];
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dest += SCREENWIDTH;
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frac += fracstep;
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} while (count--);
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}
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//============================================================================
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//
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// R_DrawTranslatedFuzzColumn
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//
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//============================================================================
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void R_DrawTranslatedFuzzColumn (void)
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{
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int count;
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byte *dest;
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fixed_t frac, fracstep;
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count = dc_yh - dc_yl;
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if (count < 0)
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return;
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#ifdef RANGECHECK
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if ((unsigned)dc_x >= SCREENWIDTH || dc_yl < 0 || dc_yh >= SCREENHEIGHT)
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I_Error ("R_DrawColumn: %i to %i at %i", dc_yl, dc_yh, dc_x);
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#endif
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dest = ylookup[dc_yl] + columnofs[dc_x];
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fracstep = dc_iscale;
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frac = dc_texturemid + (dc_yl-centery)*fracstep;
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do
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{
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*dest = tinttable[((*dest)<<8)
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+dc_colormap[dc_translation[dc_source[frac>>FRACBITS]]]];
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dest += SCREENWIDTH;
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frac += fracstep;
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} while (count--);
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}
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//============================================================================
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//
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// R_DrawTranslatedAltFuzzColumn
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//
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//============================================================================
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/*
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void R_DrawTranslatedAltFuzzColumn (void)
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{
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int count;
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byte *dest;
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fixed_t frac, fracstep;
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count = dc_yh - dc_yl;
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if (count < 0)
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return;
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#ifdef RANGECHECK
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if ((unsigned)dc_x >= SCREENWIDTH || dc_yl < 0 || dc_yh >= SCREENHEIGHT)
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I_Error ("R_DrawColumn: %i to %i at %i", dc_yl, dc_yh, dc_x);
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#endif
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dest = ylookup[dc_yl] + columnofs[dc_x];
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fracstep = dc_iscale;
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frac = dc_texturemid + (dc_yl-centery)*fracstep;
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do
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{
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*dest = tinttable[*dest
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+(dc_colormap[dc_translation[dc_source[frac>>FRACBITS]]]<<8)];
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dest += SCREENWIDTH;
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frac += fracstep;
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} while (count--);
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}
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*/
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//--------------------------------------------------------------------------
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//
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// PROC R_InitTranslationTables
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//
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//--------------------------------------------------------------------------
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void R_InitTranslationTables (void)
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{
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int i;
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byte *transLump;
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// Load tint table
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tinttable = W_CacheLumpName("TINTTAB", PU_STATIC);
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// Allocate translation tables
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translationtables = Z_Malloc(256*3*(MAXPLAYERS-1)+255,
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PU_STATIC, 0);
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translationtables = (byte *)(((int)translationtables+255)&~255);
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for(i = 0; i < 3*(MAXPLAYERS-1); i++)
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{
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transLump = W_CacheLumpNum(W_GetNumForName("trantbl0")+i, PU_STATIC);
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memcpy(translationtables+i*256, transLump, 256);
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Z_Free(transLump);
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}
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}
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/*
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================
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=
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= R_DrawSpan
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=
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================
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*/
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int ds_y;
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int ds_x1;
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int ds_x2;
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lighttable_t *ds_colormap;
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fixed_t ds_xfrac;
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fixed_t ds_yfrac;
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fixed_t ds_xstep;
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fixed_t ds_ystep;
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byte *ds_source; // start of a 64*64 tile image
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int dscount; // just for profiling
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#ifndef __WATCOMC__
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#ifndef __i386
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#ifndef __m68k
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void R_DrawSpan (void)
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{
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fixed_t xfrac, yfrac;
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byte *dest;
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int count, spot;
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#ifdef RANGECHECK
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if (ds_x2 < ds_x1 || ds_x1<0 || ds_x2>=SCREENWIDTH
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|| (unsigned)ds_y>SCREENHEIGHT)
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I_Error ("R_DrawSpan: %i to %i at %i",ds_x1,ds_x2,ds_y);
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// dscount++;
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#endif
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xfrac = ds_xfrac;
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yfrac = ds_yfrac;
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dest = ylookup[ds_y] + columnofs[ds_x1];
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count = ds_x2 - ds_x1;
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do
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{
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spot = ((yfrac>>(16-6))&(63*64)) + ((xfrac>>16)&63);
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*dest++ = ds_colormap[ds_source[spot]];
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xfrac += ds_xstep;
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yfrac += ds_ystep;
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} while (count--);
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}
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#endif
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#endif
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#endif
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void R_DrawSpanLow (void)
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{
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fixed_t xfrac, yfrac;
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byte *dest;
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int count, spot;
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#ifdef RANGECHECK
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if (ds_x2 < ds_x1 || ds_x1<0 || ds_x2>=SCREENWIDTH
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|| (unsigned)ds_y>SCREENHEIGHT)
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I_Error ("R_DrawSpan: %i to %i at %i",ds_x1,ds_x2,ds_y);
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// dscount++;
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#endif
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xfrac = ds_xfrac;
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yfrac = ds_yfrac;
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dest = ylookup[ds_y] + columnofs[ds_x1];
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count = ds_x2 - ds_x1;
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do
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{
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spot = ((yfrac>>(16-6))&(63*64)) + ((xfrac>>16)&63);
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*dest++ = ds_colormap[ds_source[spot]];
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xfrac += ds_xstep;
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yfrac += ds_ystep;
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} while (count--);
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}
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/*
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================
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=
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= R_InitBuffer
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=
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=================
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*/
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void R_InitBuffer (int width, int height)
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{
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int i;
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viewwindowx = (SCREENWIDTH-width) >> 1;
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for (i=0 ; i<width ; i++)
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columnofs[i] = viewwindowx + i;
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if (width == SCREENWIDTH)
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viewwindowy = 0;
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else
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viewwindowy = (SCREENHEIGHT-SBARHEIGHT-height) >> 1;
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for (i=0 ; i<height ; i++)
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ylookup[i] = screen + (i+viewwindowy)*SCREENWIDTH;
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}
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/*
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==================
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=
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= R_DrawViewBorder
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=
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= Draws the border around the view for different size windows
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==================
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*/
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boolean BorderNeedRefresh;
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void R_DrawViewBorder (void)
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{
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byte *src, *dest;
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int x,y;
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if (scaledviewwidth == SCREENWIDTH)
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return;
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src = W_CacheLumpName("F_022", PU_CACHE);
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dest = screen;
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for (y=0 ; y<SCREENHEIGHT-SBARHEIGHT ; y++)
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{
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for (x=0 ; x<SCREENWIDTH/64 ; x++)
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{
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memcpy (dest, src+((y&63)<<6), 64);
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dest += 64;
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}
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if (SCREENWIDTH&63)
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{
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memcpy (dest, src+((y&63)<<6), SCREENWIDTH&63);
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dest += (SCREENWIDTH&63);
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}
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}
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for(x=viewwindowx; x < viewwindowx+viewwidth; x += 16)
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{
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V_DrawPatch(x, viewwindowy-4, W_CacheLumpName("bordt", PU_CACHE));
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V_DrawPatch(x, viewwindowy+viewheight, W_CacheLumpName("bordb",
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PU_CACHE));
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}
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for(y=viewwindowy; y < viewwindowy+viewheight; y += 16)
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{
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V_DrawPatch(viewwindowx-4, y, W_CacheLumpName("bordl", PU_CACHE));
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V_DrawPatch(viewwindowx+viewwidth, y, W_CacheLumpName("bordr",
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PU_CACHE));
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}
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V_DrawPatch(viewwindowx-4, viewwindowy-4, W_CacheLumpName("bordtl",
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PU_CACHE));
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V_DrawPatch(viewwindowx+viewwidth, viewwindowy-4,
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W_CacheLumpName("bordtr", PU_CACHE));
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V_DrawPatch(viewwindowx+viewwidth, viewwindowy+viewheight,
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W_CacheLumpName("bordbr", PU_CACHE));
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V_DrawPatch(viewwindowx-4, viewwindowy+viewheight,
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W_CacheLumpName("bordbl", PU_CACHE));
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}
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/*
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==================
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=
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= R_DrawTopBorder
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=
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= Draws the top border around the view for different size windows
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==================
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*/
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boolean BorderTopRefresh;
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void R_DrawTopBorder (void)
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{
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byte *src, *dest;
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int x,y;
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if (scaledviewwidth == SCREENWIDTH)
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return;
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/* if(shareware)
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{
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src = W_CacheLumpName ("FLOOR04", PU_CACHE);
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}
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else
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{
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src = W_CacheLumpName ("FLAT513", PU_CACHE);
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}
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*/
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src = W_CacheLumpName("F_022", PU_CACHE);
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dest = screen;
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for (y=0 ; y<34 ; y++)
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{
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for (x=0 ; x<SCREENWIDTH/64 ; x++)
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{
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memcpy (dest, src+((y&63)<<6), 64);
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dest += 64;
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}
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if (SCREENWIDTH&63)
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{
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memcpy (dest, src+((y&63)<<6), SCREENWIDTH&63);
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dest += (SCREENWIDTH&63);
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}
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}
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if(viewwindowy < 35)
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{
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for(x=viewwindowx; x < viewwindowx+viewwidth; x += 16)
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{
|
|
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));
|
|
}
|
|
}
|
|
|
|
|