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(mspriteframe_t *frame, qboolean fullbright, qboolean additive)
44 texture_t *texture = &frame->texture;
45 texture->basematerialflags = MATERIALFLAG_WALL;
47 texture->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
49 texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
50 else if (texture->skinframes[0].fog)
51 texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
52 texture->currentmaterialflags = texture->basematerialflags;
53 texture->currentskinframe = texture->skinframes + 0;
56 static void Mod_Sprite_SharedSetup(const unsigned char *datapointer, int version, const unsigned int *palette, const unsigned int *alphapalette, qboolean additive)
58 int i, j, groupframes, realframes, x, y, origin[2], width, height, fullbright;
59 dspriteframetype_t *pinframetype;
60 dspriteframe_t *pinframe;
61 dspritegroup_t *pingroup;
62 dspriteinterval_t *pinintervals;
63 float modelradius, interval;
64 char name[MAX_QPATH], fogname[MAX_QPATH];
65 const void *startframes;
66 int texflags = (r_mipsprites.integer ? TEXF_MIPMAP : 0) | (r_picmipsprites.integer ? TEXF_PICMIP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE;
69 if (loadmodel->numframes < 1)
70 Host_Error ("Mod_Sprite_SharedSetup: Invalid # of frames: %d", loadmodel->numframes);
72 // LordHavoc: hack to allow sprites to be non-fullbright
74 for (i = 0;i < MAX_QPATH && loadmodel->name[i];i++)
75 if (loadmodel->name[i] == '!')
81 startframes = datapointer;
83 for (i = 0;i < loadmodel->numframes;i++)
85 pinframetype = (dspriteframetype_t *)datapointer;
86 datapointer += sizeof(dspriteframetype_t);
88 if (LittleLong (pinframetype->type) == SPR_SINGLE)
92 pingroup = (dspritegroup_t *)datapointer;
93 datapointer += sizeof(dspritegroup_t);
95 groupframes = LittleLong(pingroup->numframes);
97 datapointer += sizeof(dspriteinterval_t) * groupframes;
100 for (j = 0;j < groupframes;j++)
102 pinframe = (dspriteframe_t *)datapointer;
103 if (version == SPRITE32_VERSION)
104 datapointer += sizeof(dspriteframe_t) + LittleLong(pinframe->width) * LittleLong(pinframe->height) * 4;
105 else //if (version == SPRITE_VERSION || version == SPRITEHL_VERSION)
106 datapointer += sizeof(dspriteframe_t) + LittleLong(pinframe->width) * LittleLong(pinframe->height);
108 realframes += groupframes;
111 loadmodel->animscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
112 loadmodel->sprite.sprdata_frames = (mspriteframe_t *)Mem_Alloc(loadmodel->mempool, sizeof(mspriteframe_t) * realframes);
114 datapointer = (unsigned char *)startframes;
116 for (i = 0;i < loadmodel->numframes;i++)
118 pinframetype = (dspriteframetype_t *)datapointer;
119 datapointer += sizeof(dspriteframetype_t);
121 if (LittleLong (pinframetype->type) == SPR_SINGLE)
128 pingroup = (dspritegroup_t *)datapointer;
129 datapointer += sizeof(dspritegroup_t);
131 groupframes = LittleLong(pingroup->numframes);
133 pinintervals = (dspriteinterval_t *)datapointer;
134 datapointer += sizeof(dspriteinterval_t) * groupframes;
136 interval = LittleFloat(pinintervals[0].interval);
137 if (interval < 0.01f)
138 Host_Error("Mod_Sprite_SharedSetup: invalid interval");
141 sprintf(loadmodel->animscenes[i].name, "frame %i", i);
142 loadmodel->animscenes[i].firstframe = realframes;
143 loadmodel->animscenes[i].framecount = groupframes;
144 loadmodel->animscenes[i].framerate = 1.0f / interval;
145 loadmodel->animscenes[i].loop = true;
147 for (j = 0;j < groupframes;j++)
149 pinframe = (dspriteframe_t *)datapointer;
150 datapointer += sizeof(dspriteframe_t);
152 origin[0] = LittleLong (pinframe->origin[0]);
153 origin[1] = LittleLong (pinframe->origin[1]);
154 width = LittleLong (pinframe->width);
155 height = LittleLong (pinframe->height);
157 loadmodel->sprite.sprdata_frames[realframes].left = origin[0];
158 loadmodel->sprite.sprdata_frames[realframes].right = origin[0] + width;
159 loadmodel->sprite.sprdata_frames[realframes].up = origin[1];
160 loadmodel->sprite.sprdata_frames[realframes].down = origin[1] - height;
162 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);
163 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);
164 if (modelradius < x + y)
167 if (width > 0 && height > 0 && cls.state != ca_dedicated)
170 sprintf (name, "%s_%i_%i", loadmodel->name, i, j);
172 sprintf (name, "%s_%i", loadmodel->name, i);
173 if (!Mod_LoadSkinFrame(&loadmodel->sprite.sprdata_frames[realframes].texture.skinframes[0], name, texflags, false, false))
176 sprintf (fogname, "%s_%i_%ifog", loadmodel->name, i, j);
178 sprintf (fogname, "%s_%ifog", loadmodel->name, i);
179 if (version == SPRITE32_VERSION)
180 Mod_LoadSkinFrame_Internal(&loadmodel->sprite.sprdata_frames[realframes].texture.skinframes[0], name, texflags, false, false, datapointer, width, height, 32, NULL, NULL);
181 else //if (version == SPRITE_VERSION || version == SPRITEHL_VERSION)
182 Mod_LoadSkinFrame_Internal(&loadmodel->sprite.sprdata_frames[realframes].texture.skinframes[0], name, texflags, false, false, datapointer, width, height, 8, palette, alphapalette);
186 Mod_SpriteSetupTexture(&loadmodel->sprite.sprdata_frames[realframes], fullbright, additive);
188 if (version == SPRITE32_VERSION)
189 datapointer += width * height * 4;
190 else //if (version == SPRITE_VERSION || version == SPRITEHL_VERSION)
191 datapointer += width * height;
196 modelradius = sqrt(modelradius);
197 for (i = 0;i < 3;i++)
199 loadmodel->normalmins[i] = loadmodel->yawmins[i] = loadmodel->rotatedmins[i] = -modelradius;
200 loadmodel->normalmaxs[i] = loadmodel->yawmaxs[i] = loadmodel->rotatedmaxs[i] = modelradius;
202 loadmodel->radius = modelradius;
203 loadmodel->radius2 = modelradius * modelradius;
206 extern void R_Model_Sprite_Draw(entity_render_t *ent);
207 void Mod_IDSP_Load(model_t *mod, void *buffer, void *bufferend)
210 const unsigned char *datapointer;
212 datapointer = (unsigned char *)buffer;
214 loadmodel->type = mod_sprite;
215 loadmodel->flags2 = EF_FULLBRIGHT;
217 loadmodel->DrawSky = NULL;
218 loadmodel->Draw = R_Model_Sprite_Draw;
219 loadmodel->CompileShadowVolume = NULL;
220 loadmodel->DrawShadowVolume = NULL;
221 loadmodel->DrawLight = NULL;
223 version = LittleLong(((dsprite_t *)buffer)->version);
224 if (version == SPRITE_VERSION || version == SPRITE32_VERSION)
226 dsprite_t *pinqsprite;
228 pinqsprite = (dsprite_t *)datapointer;
229 datapointer += sizeof(dsprite_t);
231 loadmodel->numframes = LittleLong (pinqsprite->numframes);
232 loadmodel->sprite.sprnum_type = LittleLong (pinqsprite->type);
233 loadmodel->synctype = (synctype_t)LittleLong (pinqsprite->synctype);
235 Mod_Sprite_SharedSetup(datapointer, LittleLong (pinqsprite->version), NULL, NULL, false);
237 else if (version == SPRITEHL_VERSION)
240 unsigned char palette[256][4], alphapalette[256][4];
241 const unsigned char *in;
242 dspritehl_t *pinhlsprite;
244 pinhlsprite = (dspritehl_t *)datapointer;
245 datapointer += sizeof(dspritehl_t);
247 loadmodel->numframes = LittleLong (pinhlsprite->numframes);
248 loadmodel->sprite.sprnum_type = LittleLong (pinhlsprite->type);
249 loadmodel->synctype = (synctype_t)LittleLong (pinhlsprite->synctype);
250 rendermode = pinhlsprite->rendermode;
254 i = in[0] + in[1] * 256;
256 Host_Error ("Mod_IDSP_Load: unexpected number of palette colors %i (should be 256)", i);
262 for (i = 0;i < 256;i++)
264 palette[i][0] = *in++;
265 palette[i][1] = *in++;
266 palette[i][2] = *in++;
271 for (i = 0;i < 256;i++)
273 palette[i][0] = *in++;
274 palette[i][1] = *in++;
275 palette[i][2] = *in++;
278 // also passes additive == true to Mod_Sprite_SharedSetup
280 case SPRHL_INDEXALPHA:
281 for (i = 0;i < 256;i++)
283 palette[i][0] = in[765];
284 palette[i][1] = in[766];
285 palette[i][2] = in[767];
290 case SPRHL_ALPHATEST:
291 for (i = 0;i < 256;i++)
293 palette[i][0] = *in++;
294 palette[i][1] = *in++;
295 palette[i][2] = *in++;
298 palette[255][0] = palette[255][1] = palette[255][2] = palette[255][3] = 0;
299 // should this use alpha test or alpha blend? (currently blend)
302 Host_Error("Mod_IDSP_Load: unknown texFormat (%i, should be 0, 1, 2, or 3)", i);
306 for (i = 0;i < 256;i++)
308 alphapalette[i][0] = 255;
309 alphapalette[i][1] = 255;
310 alphapalette[i][2] = 255;
311 alphapalette[i][3] = palette[i][3];
314 Mod_Sprite_SharedSetup(datapointer, LittleLong (pinhlsprite->version), (unsigned int *)(&palette[0][0]), (unsigned int *)(&alphapalette[0][0]), rendermode == SPRHL_ADDITIVE);
317 Host_Error("Mod_IDSP_Load: %s has wrong version number (%i). Only %i (quake), %i (HalfLife), and %i (sprite32) supported",
318 loadmodel->name, version, SPRITE_VERSION, SPRITEHL_VERSION, SPRITE32_VERSION);
322 void Mod_IDS2_Load(model_t *mod, void *buffer, void *bufferend)
324 int i, version, fullbright;
325 const dsprite2_t *pinqsprite;
327 int texflags = (r_mipsprites.integer ? TEXF_MIPMAP : 0) | (r_picmipsprites.integer ? TEXF_PICMIP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE;
329 loadmodel->type = mod_sprite;
331 loadmodel->DrawSky = NULL;
332 loadmodel->Draw = R_Model_Sprite_Draw;
333 loadmodel->CompileShadowVolume = NULL;
334 loadmodel->DrawShadowVolume = NULL;
335 loadmodel->DrawLight = NULL;
337 pinqsprite = (dsprite2_t *)buffer;
339 version = LittleLong(pinqsprite->version);
340 if (version != SPRITE2_VERSION)
341 Host_Error("Mod_IDS2_Load: %s has wrong version number (%i should be 2 (quake 2)", loadmodel->name, version);
343 loadmodel->numframes = LittleLong (pinqsprite->numframes);
344 if (loadmodel->numframes < 1)
345 Host_Error ("Mod_IDS2_Load: Invalid # of frames: %d", loadmodel->numframes);
346 loadmodel->sprite.sprnum_type = SPR_VP_PARALLEL;
347 loadmodel->synctype = ST_SYNC;
349 // LordHavoc: hack to allow sprites to be non-fullbright
351 for (i = 0;i < MAX_QPATH && loadmodel->name[i];i++)
352 if (loadmodel->name[i] == '!')
355 loadmodel->animscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
356 loadmodel->sprite.sprdata_frames = (mspriteframe_t *)Mem_Alloc(loadmodel->mempool, sizeof(mspriteframe_t) * loadmodel->numframes);
359 for (i = 0;i < loadmodel->numframes;i++)
361 int origin[2], x, y, width, height;
362 const dsprite2frame_t *pinframe;
363 mspriteframe_t *sprframe;
365 dpsnprintf(loadmodel->animscenes[i].name, sizeof(loadmodel->animscenes[i].name), "frame %i", i);
366 loadmodel->animscenes[i].firstframe = i;
367 loadmodel->animscenes[i].framecount = 1;
368 loadmodel->animscenes[i].framerate = 10;
369 loadmodel->animscenes[i].loop = true;
371 pinframe = &pinqsprite->frames[i];
373 origin[0] = LittleLong (pinframe->origin_x);
374 origin[1] = LittleLong (pinframe->origin_y);
375 width = LittleLong (pinframe->width);
376 height = LittleLong (pinframe->height);
378 sprframe = &loadmodel->sprite.sprdata_frames[i];
380 // note that sp2 origin[0] is positive, where as it is negative in
382 sprframe->left = -origin[0];
383 sprframe->right = -origin[0] + width;
384 sprframe->up = origin[1];
385 sprframe->down = origin[1] - height;
387 x = (int)max(sprframe->left * sprframe->left, sprframe->right * sprframe->right);
388 y = (int)max(sprframe->up * sprframe->up, sprframe->down * sprframe->down);
389 if (modelradius < x + y)
392 if (width > 0 && height > 0 && cls.state != ca_dedicated)
393 if (!Mod_LoadSkinFrame(&sprframe->texture.skinframes[0], pinframe->name, texflags, false, false))
394 Con_Printf("Mod_IDS2_Load: failed to load %s", pinframe->name);
396 Mod_SpriteSetupTexture(sprframe, fullbright, false);
399 modelradius = sqrt(modelradius);
400 for (i = 0;i < 3;i++)
402 loadmodel->normalmins[i] = loadmodel->yawmins[i] = loadmodel->rotatedmins[i] = -modelradius;
403 loadmodel->normalmaxs[i] = loadmodel->yawmaxs[i] = loadmodel->rotatedmaxs[i] = modelradius;
405 loadmodel->radius = modelradius;
406 loadmodel->radius2 = modelradius * modelradius;