ref: 54bb991f273c0f4daff122226eec8a11e3f894be
dir: /r_draw.c/
//************************************************************************** //** //** r_draw.c : Heretic 2 : Raven Software, Corp. //** //** $Revision: 373 $ //** $Date: 2009-05-19 21:14:28 +0300 (Tue, 19 May 2009) $ //** //************************************************************************** #include "h2stdinc.h" #ifndef RENDER3D #include "h2def.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. */ int viewwidth, scaledviewwidth, viewheight, viewwindowx, viewwindowy; byte *ylookup[MAXHEIGHT]; int columnofs[MAXWIDTH]; 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 __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 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) static 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 }; static 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 + (dc_colormap[dc_source[(frac>>FRACBITS) & 127]]<<8)]; dest += SCREENWIDTH; frac += fracstep; } while (count--); } //============================================================================ // // R_DrawAltFuzzColumn // //============================================================================ void R_DrawAltFuzzColumn (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; do { *dest = tinttable[((*dest)<<8) + 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--); } //============================================================================ // // R_DrawTranslatedFuzzColumn // //============================================================================ 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--); } //============================================================================ // // R_DrawTranslatedAltFuzzColumn // //============================================================================ /* void R_DrawTranslatedAltFuzzColumn (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 + (dc_colormap[dc_translation[dc_source[frac>>FRACBITS]]]<<8)]; dest += SCREENWIDTH; frac += fracstep; } while (count--); } */ //-------------------------------------------------------------------------- // // PROC R_InitTranslationTables // //-------------------------------------------------------------------------- /* version 1.0 wad has 9 lumps: trantbl0 ... trantbl8 */ #if 0 static byte transtable10[256 * 3 * (MAXPLAYERS_10 - 1)] = { # include "transtb10.h" }; #endif /* version 1.1 wad has 21 lumps: trantbl0 .. trantbl9 and trantbla .. trantblk */ #if (MAXPLAYERS == MAXPLAYERS_11) static byte transtable11[256 * 3 * (MAXPLAYERS_11 - 1)] = { # include "transtb11.h" }; #define TRANTBL11_OFS (256 * 3 * (MAXPLAYERS_10 - 1)) #define TRANTBL11_CNT (256 * 3 * (MAXPLAYERS_11 - MAXPLAYERS_10)) #endif void R_InitTranslationTables (void) { int i; byte *transLump; // Load tint table tinttable = (byte *) W_CacheLumpName("TINTTAB", PU_STATIC); // Allocate translation tables translationtables = (byte *) Z_Malloc(256 * 3 * (MAXPLAYERS - 1) + 255, PU_STATIC, NULL); translationtables = (byte *)(((intptr_t)translationtables + 255) & ~255); for (i = 0; i < 3 * (MAXPLAYERS - 1); i++) { #if (MAXPLAYERS == MAXPLAYERS_11) if (oldwad_10 && i == 3 * (MAXPLAYERS_10 - 1)) { /* HACK !! --- old 1.0 wad doesn't have TRANTBL9 * to TRANTBLK. Let's just copy from * the extracted v1.1 data. */ memcpy (translationtables + TRANTBL11_OFS, transtable11 + TRANTBL11_OFS, TRANTBL11_CNT); break; } #endif /* 8-players */ transLump = (byte *) W_CacheLumpNum(W_GetNumForName("trantbl0") + i, PU_STATIC); memcpy(translationtables + i*256, transLump, 256); Z_Free(transLump); } } /* ================ = = 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 __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 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] = screens + (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; src = (byte *) W_CacheLumpName("F_022", PU_CACHE); dest = screens; 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, (patch_t *)W_CacheLumpName("bordt", PU_CACHE)); V_DrawPatch(x, viewwindowy + viewheight, (patch_t *)W_CacheLumpName("bordb", PU_CACHE)); } for (y = viewwindowy; y < viewwindowy + viewheight; y += 16) { V_DrawPatch(viewwindowx - 4, y, (patch_t *)W_CacheLumpName("bordl", PU_CACHE)); V_DrawPatch(viewwindowx+viewwidth, y, (patch_t *)W_CacheLumpName("bordr", PU_CACHE)); } V_DrawPatch(viewwindowx - 4, viewwindowy - 4, (patch_t *)W_CacheLumpName("bordtl", PU_CACHE)); V_DrawPatch(viewwindowx + viewwidth, viewwindowy - 4, (patch_t *)W_CacheLumpName("bordtr", PU_CACHE)); V_DrawPatch(viewwindowx + viewwidth, viewwindowy + viewheight, (patch_t *)W_CacheLumpName("bordbr", PU_CACHE)); V_DrawPatch(viewwindowx - 4, viewwindowy + viewheight, (patch_t *)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; src = (byte *) W_CacheLumpName("F_022", PU_CACHE); dest = screens; for (y = 0; y < 34; 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 < 35) { for (x = viewwindowx; x < viewwindowx + viewwidth; x += 16) { V_DrawPatch(x, viewwindowy - 4, (patch_t *)W_CacheLumpName("bordt", PU_CACHE)); } V_DrawPatch(viewwindowx-4, viewwindowy, (patch_t *)W_CacheLumpName("bordl", PU_CACHE)); V_DrawPatch(viewwindowx + viewwidth, viewwindowy, (patch_t *)W_CacheLumpName("bordr", PU_CACHE)); V_DrawPatch(viewwindowx - 4, viewwindowy + 16, (patch_t *)W_CacheLumpName("bordl", PU_CACHE)); V_DrawPatch(viewwindowx + viewwidth, viewwindowy + 16, (patch_t *)W_CacheLumpName("bordr", PU_CACHE)); V_DrawPatch(viewwindowx - 4, viewwindowy - 4, (patch_t *)W_CacheLumpName("bordtl", PU_CACHE)); V_DrawPatch(viewwindowx + viewwidth, viewwindowy - 4, (patch_t *)W_CacheLumpName("bordtr", PU_CACHE)); } } #endif /* RENDER3D */