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.
20 // models.c -- model loading and caching
22 // models are the only shared resource between a client and server running
23 // on the same machine.
28 cvar_t r_mipsprites = {CVAR_SAVE, "r_mipsprites", "1", "mipmaps skins (so they become blurrier in the distance), unlike skins the sprites do not have strange border colors"};
29 cvar_t r_picmipsprites = {CVAR_SAVE, "r_picmipsprites", "1", "make gl_picmip affect sprites too (saves some graphics memory in sprite heavy games)"};
36 void Mod_SpriteInit (void)
38 Cvar_RegisterVariable(&r_mipsprites);
39 Cvar_RegisterVariable(&r_picmipsprites);
42 static void Mod_SpriteSetupTexture(texture_t *texture, skinframe_t *skinframe, qboolean fullbright, qboolean additive)
45 skinframe = R_SkinFrame_LoadMissing();
46 texture->basematerialflags = MATERIALFLAG_WALL;
48 texture->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
50 texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
51 else if (skinframe->fog)
52 texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
53 texture->currentmaterialflags = texture->basematerialflags;
54 texture->numskinframes = 1;
55 texture->currentskinframe = texture->skinframes[0] = skinframe;
58 static void Mod_Sprite_SharedSetup(const unsigned char *datapointer, int version, const unsigned int *palette, const unsigned int *alphapalette, qboolean additive)
60 int i, j, groupframes, realframes, x, y, origin[2], width, height, fullbright;
61 dspriteframetype_t *pinframetype;
62 dspriteframe_t *pinframe;
63 dspritegroup_t *pingroup;
64 dspriteinterval_t *pinintervals;
65 skinframe_t *skinframe;
66 float modelradius, interval;
67 char name[MAX_QPATH], fogname[MAX_QPATH];
68 const void *startframes;
69 int texflags = (r_mipsprites.integer ? TEXF_MIPMAP : 0) | (r_picmipsprites.integer ? TEXF_PICMIP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE;
72 if (loadmodel->numframes < 1)
73 Host_Error ("Mod_Sprite_SharedSetup: Invalid # of frames: %d", loadmodel->numframes);
75 // LordHavoc: hack to allow sprites to be non-fullbright
77 for (i = 0;i < MAX_QPATH && loadmodel->name[i];i++)
78 if (loadmodel->name[i] == '!')
84 startframes = datapointer;
86 for (i = 0;i < loadmodel->numframes;i++)
88 pinframetype = (dspriteframetype_t *)datapointer;
89 datapointer += sizeof(dspriteframetype_t);
91 if (LittleLong (pinframetype->type) == SPR_SINGLE)
95 pingroup = (dspritegroup_t *)datapointer;
96 datapointer += sizeof(dspritegroup_t);
98 groupframes = LittleLong(pingroup->numframes);
100 datapointer += sizeof(dspriteinterval_t) * groupframes;
103 for (j = 0;j < groupframes;j++)
105 pinframe = (dspriteframe_t *)datapointer;
106 if (version == SPRITE32_VERSION)
107 datapointer += sizeof(dspriteframe_t) + LittleLong(pinframe->width) * LittleLong(pinframe->height) * 4;
108 else //if (version == SPRITE_VERSION || version == SPRITEHL_VERSION)
109 datapointer += sizeof(dspriteframe_t) + LittleLong(pinframe->width) * LittleLong(pinframe->height);
111 realframes += groupframes;
114 loadmodel->animscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
115 loadmodel->sprite.sprdata_frames = (mspriteframe_t *)Mem_Alloc(loadmodel->mempool, sizeof(mspriteframe_t) * realframes);
116 loadmodel->num_textures = realframes;
117 loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, sizeof(texture_t) * loadmodel->num_textures);
119 datapointer = (unsigned char *)startframes;
121 for (i = 0;i < loadmodel->numframes;i++)
123 pinframetype = (dspriteframetype_t *)datapointer;
124 datapointer += sizeof(dspriteframetype_t);
126 if (LittleLong (pinframetype->type) == SPR_SINGLE)
133 pingroup = (dspritegroup_t *)datapointer;
134 datapointer += sizeof(dspritegroup_t);
136 groupframes = LittleLong(pingroup->numframes);
138 pinintervals = (dspriteinterval_t *)datapointer;
139 datapointer += sizeof(dspriteinterval_t) * groupframes;
141 interval = LittleFloat(pinintervals[0].interval);
142 if (interval < 0.01f)
143 Host_Error("Mod_Sprite_SharedSetup: invalid interval");
146 sprintf(loadmodel->animscenes[i].name, "frame %i", i);
147 loadmodel->animscenes[i].firstframe = realframes;
148 loadmodel->animscenes[i].framecount = groupframes;
149 loadmodel->animscenes[i].framerate = 1.0f / interval;
150 loadmodel->animscenes[i].loop = true;
152 for (j = 0;j < groupframes;j++)
154 pinframe = (dspriteframe_t *)datapointer;
155 datapointer += sizeof(dspriteframe_t);
157 origin[0] = LittleLong (pinframe->origin[0]);
158 origin[1] = LittleLong (pinframe->origin[1]);
159 width = LittleLong (pinframe->width);
160 height = LittleLong (pinframe->height);
162 loadmodel->sprite.sprdata_frames[realframes].left = origin[0];
163 loadmodel->sprite.sprdata_frames[realframes].right = origin[0] + width;
164 loadmodel->sprite.sprdata_frames[realframes].up = origin[1];
165 loadmodel->sprite.sprdata_frames[realframes].down = origin[1] - height;
167 x = (int)max(loadmodel->sprite.sprdata_frames[realframes].left * loadmodel->sprite.sprdata_frames[realframes].left, loadmodel->sprite.sprdata_frames[realframes].right * loadmodel->sprite.sprdata_frames[realframes].right);
168 y = (int)max(loadmodel->sprite.sprdata_frames[realframes].up * loadmodel->sprite.sprdata_frames[realframes].up, loadmodel->sprite.sprdata_frames[realframes].down * loadmodel->sprite.sprdata_frames[realframes].down);
169 if (modelradius < x + y)
172 if (width > 0 && height > 0 && cls.state != ca_dedicated)
176 sprintf (name, "%s_%i_%i", loadmodel->name, i, j);
178 sprintf (name, "%s_%i", loadmodel->name, i);
179 if (!(skinframe = R_SkinFrame_LoadExternal(name, texflags)))
182 sprintf (fogname, "%s_%i_%ifog", loadmodel->name, i, j);
184 sprintf (fogname, "%s_%ifog", loadmodel->name, i);
185 if (version == SPRITE32_VERSION)
186 skinframe = R_SkinFrame_LoadInternal(name, texflags, false, false, datapointer, width, height, 32, NULL, NULL);
187 else //if (version == SPRITE_VERSION || version == SPRITEHL_VERSION)
188 skinframe = R_SkinFrame_LoadInternal(name, texflags, false, false, datapointer, width, height, 8, palette, alphapalette);
190 Mod_SpriteSetupTexture(&loadmodel->data_textures[realframes], skinframe, fullbright, additive);
193 if (version == SPRITE32_VERSION)
194 datapointer += width * height * 4;
195 else //if (version == SPRITE_VERSION || version == SPRITEHL_VERSION)
196 datapointer += width * height;
201 modelradius = sqrt(modelradius);
202 for (i = 0;i < 3;i++)
204 loadmodel->normalmins[i] = loadmodel->yawmins[i] = loadmodel->rotatedmins[i] = -modelradius;
205 loadmodel->normalmaxs[i] = loadmodel->yawmaxs[i] = loadmodel->rotatedmaxs[i] = modelradius;
207 loadmodel->radius = modelradius;
208 loadmodel->radius2 = modelradius * modelradius;
211 extern void R_Model_Sprite_Draw(entity_render_t *ent);
212 void Mod_IDSP_Load(model_t *mod, void *buffer, void *bufferend)
215 const unsigned char *datapointer;
217 datapointer = (unsigned char *)buffer;
219 loadmodel->type = mod_sprite;
221 loadmodel->DrawSky = NULL;
222 loadmodel->Draw = R_Model_Sprite_Draw;
223 loadmodel->CompileShadowVolume = NULL;
224 loadmodel->DrawShadowVolume = NULL;
225 loadmodel->DrawLight = NULL;
227 version = LittleLong(((dsprite_t *)buffer)->version);
228 if (version == SPRITE_VERSION || version == SPRITE32_VERSION)
230 dsprite_t *pinqsprite;
232 pinqsprite = (dsprite_t *)datapointer;
233 datapointer += sizeof(dsprite_t);
235 loadmodel->numframes = LittleLong (pinqsprite->numframes);
236 loadmodel->sprite.sprnum_type = LittleLong (pinqsprite->type);
237 loadmodel->synctype = (synctype_t)LittleLong (pinqsprite->synctype);
239 Mod_Sprite_SharedSetup(datapointer, LittleLong (pinqsprite->version), NULL, NULL, false);
241 else if (version == SPRITEHL_VERSION)
244 unsigned char palette[256][4], alphapalette[256][4];
245 const unsigned char *in;
246 dspritehl_t *pinhlsprite;
248 pinhlsprite = (dspritehl_t *)datapointer;
249 datapointer += sizeof(dspritehl_t);
251 loadmodel->numframes = LittleLong (pinhlsprite->numframes);
252 loadmodel->sprite.sprnum_type = LittleLong (pinhlsprite->type);
253 loadmodel->synctype = (synctype_t)LittleLong (pinhlsprite->synctype);
254 rendermode = pinhlsprite->rendermode;
258 i = in[0] + in[1] * 256;
260 Host_Error ("Mod_IDSP_Load: unexpected number of palette colors %i (should be 256)", i);
266 for (i = 0;i < 256;i++)
268 palette[i][0] = *in++;
269 palette[i][1] = *in++;
270 palette[i][2] = *in++;
275 for (i = 0;i < 256;i++)
277 palette[i][0] = *in++;
278 palette[i][1] = *in++;
279 palette[i][2] = *in++;
282 // also passes additive == true to Mod_Sprite_SharedSetup
284 case SPRHL_INDEXALPHA:
285 for (i = 0;i < 256;i++)
287 palette[i][0] = in[765];
288 palette[i][1] = in[766];
289 palette[i][2] = in[767];
294 case SPRHL_ALPHATEST:
295 for (i = 0;i < 256;i++)
297 palette[i][0] = *in++;
298 palette[i][1] = *in++;
299 palette[i][2] = *in++;
302 palette[255][0] = palette[255][1] = palette[255][2] = palette[255][3] = 0;
303 // should this use alpha test or alpha blend? (currently blend)
306 Host_Error("Mod_IDSP_Load: unknown texFormat (%i, should be 0, 1, 2, or 3)", i);
310 for (i = 0;i < 256;i++)
312 alphapalette[i][0] = 255;
313 alphapalette[i][1] = 255;
314 alphapalette[i][2] = 255;
315 alphapalette[i][3] = palette[i][3];
318 Mod_Sprite_SharedSetup(datapointer, LittleLong (pinhlsprite->version), (unsigned int *)(&palette[0][0]), (unsigned int *)(&alphapalette[0][0]), rendermode == SPRHL_ADDITIVE);
321 Host_Error("Mod_IDSP_Load: %s has wrong version number (%i). Only %i (quake), %i (HalfLife), and %i (sprite32) supported",
322 loadmodel->name, version, SPRITE_VERSION, SPRITEHL_VERSION, SPRITE32_VERSION);
326 void Mod_IDS2_Load(model_t *mod, void *buffer, void *bufferend)
328 int i, version, fullbright;
329 const dsprite2_t *pinqsprite;
330 skinframe_t *skinframe;
332 int texflags = (r_mipsprites.integer ? TEXF_MIPMAP : 0) | (r_picmipsprites.integer ? TEXF_PICMIP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE;
334 loadmodel->type = mod_sprite;
336 loadmodel->DrawSky = NULL;
337 loadmodel->Draw = R_Model_Sprite_Draw;
338 loadmodel->CompileShadowVolume = NULL;
339 loadmodel->DrawShadowVolume = NULL;
340 loadmodel->DrawLight = NULL;
342 pinqsprite = (dsprite2_t *)buffer;
344 version = LittleLong(pinqsprite->version);
345 if (version != SPRITE2_VERSION)
346 Host_Error("Mod_IDS2_Load: %s has wrong version number (%i should be 2 (quake 2)", loadmodel->name, version);
348 loadmodel->numframes = LittleLong (pinqsprite->numframes);
349 if (loadmodel->numframes < 1)
350 Host_Error ("Mod_IDS2_Load: Invalid # of frames: %d", loadmodel->numframes);
351 loadmodel->sprite.sprnum_type = SPR_VP_PARALLEL;
352 loadmodel->synctype = ST_SYNC;
354 // LordHavoc: hack to allow sprites to be non-fullbright
356 for (i = 0;i < MAX_QPATH && loadmodel->name[i];i++)
357 if (loadmodel->name[i] == '!')
360 loadmodel->animscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
361 loadmodel->sprite.sprdata_frames = (mspriteframe_t *)Mem_Alloc(loadmodel->mempool, sizeof(mspriteframe_t) * loadmodel->numframes);
362 loadmodel->num_textures = loadmodel->numframes;
363 loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, sizeof(texture_t) * loadmodel->num_textures);
366 for (i = 0;i < loadmodel->numframes;i++)
368 int origin[2], x, y, width, height;
369 const dsprite2frame_t *pinframe;
370 mspriteframe_t *sprframe;
372 dpsnprintf(loadmodel->animscenes[i].name, sizeof(loadmodel->animscenes[i].name), "frame %i", i);
373 loadmodel->animscenes[i].firstframe = i;
374 loadmodel->animscenes[i].framecount = 1;
375 loadmodel->animscenes[i].framerate = 10;
376 loadmodel->animscenes[i].loop = true;
378 pinframe = &pinqsprite->frames[i];
380 origin[0] = LittleLong (pinframe->origin_x);
381 origin[1] = LittleLong (pinframe->origin_y);
382 width = LittleLong (pinframe->width);
383 height = LittleLong (pinframe->height);
385 sprframe = &loadmodel->sprite.sprdata_frames[i];
387 // note that sp2 origin[0] is positive, where as it is negative in
389 sprframe->left = -origin[0];
390 sprframe->right = -origin[0] + width;
391 sprframe->up = origin[1];
392 sprframe->down = origin[1] - height;
394 x = (int)max(sprframe->left * sprframe->left, sprframe->right * sprframe->right);
395 y = (int)max(sprframe->up * sprframe->up, sprframe->down * sprframe->down);
396 if (modelradius < x + y)
400 if (cls.state != ca_dedicated)
402 for (i = 0;i < loadmodel->numframes;i++)
404 const dsprite2frame_t *pinframe;
405 pinframe = &pinqsprite->frames[i];
406 if (!(skinframe = R_SkinFrame_LoadExternal(pinframe->name, texflags)))
408 Con_Printf("Mod_IDS2_Load: failed to load %s", pinframe->name);
409 skinframe = R_SkinFrame_LoadMissing();
411 Mod_SpriteSetupTexture(&loadmodel->data_textures[i], skinframe, fullbright, false);
415 modelradius = sqrt(modelradius);
416 for (i = 0;i < 3;i++)
418 loadmodel->normalmins[i] = loadmodel->yawmins[i] = loadmodel->rotatedmins[i] = -modelradius;
419 loadmodel->normalmaxs[i] = loadmodel->yawmaxs[i] = loadmodel->rotatedmaxs[i] = modelradius;
421 loadmodel->radius = modelradius;
422 loadmodel->radius2 = modelradius * modelradius;