2 Copyright (C) 1996-1997 Id Software, Inc.
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 See the GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
31 void R_InitTextures (void)
36 // create a simple checkerboard texture for the default
37 r_notexture_mip = Hunk_AllocName (sizeof(texture_t) + 16*16+8*8+4*4+2*2, "notexture");
39 r_notexture_mip->width = r_notexture_mip->height = 16;
40 r_notexture_mip->offsets[0] = sizeof(texture_t);
41 r_notexture_mip->offsets[1] = r_notexture_mip->offsets[0] + 16*16;
42 r_notexture_mip->offsets[2] = r_notexture_mip->offsets[1] + 8*8;
43 r_notexture_mip->offsets[3] = r_notexture_mip->offsets[2] + 4*4;
44 r_notexture_mip->transparent = FALSE;
48 dest = (byte *)r_notexture_mip + r_notexture_mip->offsets[m];
49 for (y=0 ; y< (16>>m) ; y++)
50 for (x=0 ; x< (16>>m) ; x++)
52 if ( (y< (8>>m) ) ^ (x< (8>>m) ) )
64 Grab six views for environment mapping tests
67 void R_Envmap_f (void)
69 byte buffer[256*256*4];
71 glDrawBuffer (GL_FRONT);
72 glReadBuffer (GL_FRONT);
77 r_refdef.vrect.width = 256;
78 r_refdef.vrect.height = 256;
80 r_refdef.viewangles[0] = 0;
81 r_refdef.viewangles[1] = 0;
82 r_refdef.viewangles[2] = 0;
83 GL_BeginRendering (&glx, &gly, &glwidth, &glheight);
85 glReadPixels (0, 0, 256, 256, GL_RGBA, GL_UNSIGNED_BYTE, buffer);
86 COM_WriteFile ("env0.rgb", buffer, sizeof(buffer));
88 r_refdef.viewangles[1] = 90;
89 GL_BeginRendering (&glx, &gly, &glwidth, &glheight);
91 glReadPixels (0, 0, 256, 256, GL_RGBA, GL_UNSIGNED_BYTE, buffer);
92 COM_WriteFile ("env1.rgb", buffer, sizeof(buffer));
94 r_refdef.viewangles[1] = 180;
95 GL_BeginRendering (&glx, &gly, &glwidth, &glheight);
97 glReadPixels (0, 0, 256, 256, GL_RGBA, GL_UNSIGNED_BYTE, buffer);
98 COM_WriteFile ("env2.rgb", buffer, sizeof(buffer));
100 r_refdef.viewangles[1] = 270;
101 GL_BeginRendering (&glx, &gly, &glwidth, &glheight);
103 glReadPixels (0, 0, 256, 256, GL_RGBA, GL_UNSIGNED_BYTE, buffer);
104 COM_WriteFile ("env3.rgb", buffer, sizeof(buffer));
106 r_refdef.viewangles[0] = -90;
107 r_refdef.viewangles[1] = 0;
108 GL_BeginRendering (&glx, &gly, &glwidth, &glheight);
110 glReadPixels (0, 0, 256, 256, GL_RGBA, GL_UNSIGNED_BYTE, buffer);
111 COM_WriteFile ("env4.rgb", buffer, sizeof(buffer));
113 r_refdef.viewangles[0] = 90;
114 r_refdef.viewangles[1] = 0;
115 GL_BeginRendering (&glx, &gly, &glwidth, &glheight);
117 glReadPixels (0, 0, 256, 256, GL_RGBA, GL_UNSIGNED_BYTE, buffer);
118 COM_WriteFile ("env5.rgb", buffer, sizeof(buffer));
121 glDrawBuffer (GL_BACK);
122 glReadBuffer (GL_BACK);
126 void R_InitParticles (void);
135 extern byte *hunk_base;
136 // extern cvar_t gl_finish;
138 Cmd_AddCommand ("timerefresh", R_TimeRefresh_f);
139 Cmd_AddCommand ("envmap", R_Envmap_f);
140 Cmd_AddCommand ("pointfile", R_ReadPointFile_f);
142 // Cvar_RegisterVariable (&r_norefresh);
143 // Cvar_RegisterVariable (&r_lightmap);
144 Cvar_RegisterVariable (&r_drawentities);
145 Cvar_RegisterVariable (&r_drawviewmodel);
146 // Cvar_RegisterVariable (&r_shadows);
147 Cvar_RegisterVariable (&r_wateralpha);
148 // Cvar_RegisterVariable (&r_dynamic);
149 Cvar_RegisterVariable (&r_novis);
150 Cvar_RegisterVariable (&r_speeds);
151 Cvar_RegisterVariable (&r_waterripple); // LordHavoc: added waterripple
153 // Cvar_RegisterVariable (&gl_cull);
154 // Cvar_RegisterVariable (&gl_affinemodels);
155 // Cvar_RegisterVariable (&gl_polyblend);
156 // Cvar_RegisterVariable (&gl_flashblend);
157 Cvar_RegisterVariable (&gl_playermip);
158 // Cvar_RegisterVariable (&gl_nocolors);
160 // Cvar_RegisterVariable (&gl_keeptjunctions);
161 // Cvar_RegisterVariable (&gl_reporttjunctions);
165 playertextures = texture_extension_number;
166 texture_extension_number += 64; // LordHavoc: increased number of players from 16 to 64
169 qboolean VID_Is8bit(void);
170 void GL_Upload8_EXT (byte *data, int width, int height, qboolean mipmap, qboolean alpha);
174 R_TranslatePlayerSkin
176 Translates a skin texture by the per-player color lookup
179 void R_TranslatePlayerSkin (int playernum)
183 unsigned translate32[256];
186 aliashdr_t *paliashdr;
188 unsigned pixels[512*256], *out;
189 unsigned scaled_width, scaled_height;
190 int inwidth, inheight;
192 unsigned frac, fracstep;
193 extern byte **player_8bit_texels_tbl;
195 top = cl.scores[playernum].colors & 0xf0;
196 bottom = (cl.scores[playernum].colors &15)<<4;
198 for (i=0 ; i<256 ; i++)
201 for (i=0 ; i<16 ; i++)
203 // LordHavoc: corrected color ranges
204 if (top < 128 || (top >= 224 && top < 240)) // the artists made some backwards ranges. sigh.
205 translate[TOP_RANGE+i] = top+i;
207 translate[TOP_RANGE+i] = top+15-i;
209 // LordHavoc: corrected color ranges
210 if (bottom < 128 || (bottom >= 224 && bottom < 240))
211 translate[BOTTOM_RANGE+i] = bottom+i;
213 translate[BOTTOM_RANGE+i] = bottom+15-i;
217 // locate the original skin pixels
219 currententity = &cl_entities[1+playernum];
220 model = currententity->model;
222 return; // player doesn't have a model yet
223 if (model->type != mod_alias)
224 return; // only translate skins on alias models
226 paliashdr = (aliashdr_t *)Mod_Extradata (model);
227 s = paliashdr->skinwidth * paliashdr->skinheight;
228 if (currententity->skinnum < 0 || currententity->skinnum >= paliashdr->numskins)
230 Con_Printf("(%d): Invalid player skin #%d\n", playernum, currententity->skinnum);
231 original = (byte *)paliashdr + paliashdr->texels[0];
234 original = (byte *)paliashdr + paliashdr->texels[currententity->skinnum];
236 Sys_Error ("R_TranslateSkin: s&3");
238 inwidth = paliashdr->skinwidth;
239 inheight = paliashdr->skinheight;
241 // because this happens during gameplay, do it fast
242 // instead of sending it through gl_upload 8
243 glBindTexture(GL_TEXTURE_2D, playertextures + playernum);
246 byte translated[320*200];
248 for (i=0 ; i<s ; i+=4)
250 translated[i] = translate[original[i]];
251 translated[i+1] = translate[original[i+1]];
252 translated[i+2] = translate[original[i+2]];
253 translated[i+3] = translate[original[i+3]];
257 // don't mipmap these, because it takes too long
258 GL_Upload8 (translated, paliashdr->skinwidth, paliashdr->skinheight, false, false, true);
260 scaled_width = gl_max_size.value < 512 ? gl_max_size.value : 512;
261 scaled_height = gl_max_size.value < 256 ? gl_max_size.value : 256;
263 // allow users to crunch sizes down even more if they want
264 scaled_width >>= (int)gl_playermip.value;
265 scaled_height >>= (int)gl_playermip.value;
268 { // 8bit texture upload
271 out2 = (byte *)pixels;
272 memset(pixels, 0, sizeof(pixels));
273 fracstep = inwidth*0x10000/scaled_width;
274 for (i=0 ; i<scaled_height ; i++, out2 += scaled_width)
276 inrow = original + inwidth*(i*inheight/scaled_height);
277 frac = fracstep >> 1;
278 for (j=0 ; j<scaled_width ; j+=4)
280 out2[j] = translate[inrow[frac>>16]];
282 out2[j+1] = translate[inrow[frac>>16]];
284 out2[j+2] = translate[inrow[frac>>16]];
286 out2[j+3] = translate[inrow[frac>>16]];
291 GL_Upload8_EXT ((byte *)pixels, scaled_width, scaled_height, false, false);
295 for (i=0 ; i<256 ; i++)
296 translate32[i] = d_8to24table[translate[i]];
299 fracstep = inwidth*0x10000/scaled_width;
300 for (i=0 ; i<scaled_height ; i++, out += scaled_width)
302 inrow = original + inwidth*(i*inheight/scaled_height);
303 frac = fracstep >> 1;
304 for (j=0 ; j<scaled_width ; j+=4)
306 out[j] = translate32[inrow[frac>>16]];
308 out[j+1] = translate32[inrow[frac>>16]];
310 out[j+2] = translate32[inrow[frac>>16]];
312 out[j+3] = translate32[inrow[frac>>16]];
316 glTexImage2D (GL_TEXTURE_2D, 0, gl_solid_format, scaled_width, scaled_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
318 glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
319 glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
320 glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
325 void R_ClearParticles (void);
326 void GL_BuildLightmaps (void);
333 void SHOWLMP_clear();
338 for (i=0 ; i<256 ; i++)
339 d_lightstylevalue[i] = 264; // normal light value
341 memset (&r_worldentity, 0, sizeof(r_worldentity));
342 r_worldentity.model = cl.worldmodel;
343 currententity = &r_worldentity;
345 // clear out efrags in case the level hasn't been reloaded
346 // FIXME: is this one short?
347 for (i=0 ; i<cl.worldmodel->numleafs ; i++)
348 cl.worldmodel->leafs[i].efrags = NULL;
353 GL_BuildLightmaps ();
355 // identify sky texture
357 for (i=0 ; i<cl.worldmodel->numtextures ; i++)
359 if (!cl.worldmodel->textures[i])
361 if (!strncmp(cl.worldmodel->textures[i]->name,"sky",3) )
363 cl.worldmodel->textures[i]->texturechain = NULL;
373 For program optimization
376 void R_TimeRefresh_f (void)
379 float start, stop, time;
381 start = Sys_FloatTime ();
382 for (i=0 ; i<128 ; i++)
384 r_refdef.viewangles[1] = i/128.0*360.0;
388 stop = Sys_FloatTime ();
390 Con_Printf ("%f seconds (%f fps)\n", time, 128/time);
393 void D_FlushCaches (void)