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"};
35 void Mod_SpriteInit (void)
37 Cvar_RegisterVariable(&r_mipsprites);
40 static void Mod_SpriteSetupTexture(mspriteframe_t *frame, qboolean fullbright, qboolean additive)
42 texture_t *texture = &frame->texture;
43 texture->basematerialflags = MATERIALFLAG_WALL;
45 texture->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
47 texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_TRANSPARENT | MATERIALFLAG_NOSHADOW;
48 else if (texture->skinframes[0].fog)
49 texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_TRANSPARENT | MATERIALFLAG_NOSHADOW;
50 texture->currentmaterialflags = texture->basematerialflags;
51 texture->currentskinframe = texture->skinframes + 0;
54 static void Mod_Sprite_SharedSetup(const unsigned char *datapointer, int version, const unsigned int *palette, const unsigned int *alphapalette, qboolean additive)
56 int i, j, groupframes, realframes, x, y, origin[2], width, height, fullbright;
57 dspriteframetype_t *pinframetype;
58 dspriteframe_t *pinframe;
59 dspritegroup_t *pingroup;
60 dspriteinterval_t *pinintervals;
61 float modelradius, interval;
62 char name[MAX_QPATH], fogname[MAX_QPATH];
63 const void *startframes;
66 if (loadmodel->numframes < 1)
67 Host_Error ("Mod_Sprite_SharedSetup: Invalid # of frames: %d", loadmodel->numframes);
69 // LordHavoc: hack to allow sprites to be non-fullbright
71 for (i = 0;i < MAX_QPATH && loadmodel->name[i];i++)
72 if (loadmodel->name[i] == '!')
78 startframes = datapointer;
80 for (i = 0;i < loadmodel->numframes;i++)
82 pinframetype = (dspriteframetype_t *)datapointer;
83 datapointer += sizeof(dspriteframetype_t);
85 if (LittleLong (pinframetype->type) == SPR_SINGLE)
89 pingroup = (dspritegroup_t *)datapointer;
90 datapointer += sizeof(dspritegroup_t);
92 groupframes = LittleLong(pingroup->numframes);
94 datapointer += sizeof(dspriteinterval_t) * groupframes;
97 for (j = 0;j < groupframes;j++)
99 pinframe = (dspriteframe_t *)datapointer;
100 if (version == SPRITE32_VERSION)
101 datapointer += sizeof(dspriteframe_t) + LittleLong(pinframe->width) * LittleLong(pinframe->height) * 4;
102 else //if (version == SPRITE_VERSION || version == SPRITEHL_VERSION)
103 datapointer += sizeof(dspriteframe_t) + LittleLong(pinframe->width) * LittleLong(pinframe->height);
105 realframes += groupframes;
108 loadmodel->animscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
109 loadmodel->sprite.sprdata_frames = (mspriteframe_t *)Mem_Alloc(loadmodel->mempool, sizeof(mspriteframe_t) * realframes);
111 datapointer = (unsigned char *)startframes;
113 for (i = 0;i < loadmodel->numframes;i++)
115 pinframetype = (dspriteframetype_t *)datapointer;
116 datapointer += sizeof(dspriteframetype_t);
118 if (LittleLong (pinframetype->type) == SPR_SINGLE)
125 pingroup = (dspritegroup_t *)datapointer;
126 datapointer += sizeof(dspritegroup_t);
128 groupframes = LittleLong(pingroup->numframes);
130 pinintervals = (dspriteinterval_t *)datapointer;
131 datapointer += sizeof(dspriteinterval_t) * groupframes;
133 interval = LittleFloat(pinintervals[0].interval);
134 if (interval < 0.01f)
135 Host_Error("Mod_Sprite_SharedSetup: invalid interval");
138 sprintf(loadmodel->animscenes[i].name, "frame %i", i);
139 loadmodel->animscenes[i].firstframe = realframes;
140 loadmodel->animscenes[i].framecount = groupframes;
141 loadmodel->animscenes[i].framerate = 1.0f / interval;
142 loadmodel->animscenes[i].loop = true;
144 for (j = 0;j < groupframes;j++)
146 pinframe = (dspriteframe_t *)datapointer;
147 datapointer += sizeof(dspriteframe_t);
149 origin[0] = LittleLong (pinframe->origin[0]);
150 origin[1] = LittleLong (pinframe->origin[1]);
151 width = LittleLong (pinframe->width);
152 height = LittleLong (pinframe->height);
154 loadmodel->sprite.sprdata_frames[realframes].left = origin[0];
155 loadmodel->sprite.sprdata_frames[realframes].right = origin[0] + width;
156 loadmodel->sprite.sprdata_frames[realframes].up = origin[1];
157 loadmodel->sprite.sprdata_frames[realframes].down = origin[1] - height;
159 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);
160 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);
161 if (modelradius < x + y)
164 if (width > 0 && height > 0 && cls.state != ca_dedicated)
167 sprintf (name, "%s_%i_%i", loadmodel->name, i, j);
169 sprintf (name, "%s_%i", loadmodel->name, i);
170 Mod_LoadSkinFrame(&loadmodel->sprite.sprdata_frames[realframes].texture.skinframes[0], name, (r_mipsprites.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE | TEXF_PICMIP, false, false);
172 if (!loadmodel->sprite.sprdata_frames[realframes].texture.skinframes[0].base)
175 sprintf (fogname, "%s_%i_%ifog", loadmodel->name, i, j);
177 sprintf (fogname, "%s_%ifog", loadmodel->name, i);
178 if (version == SPRITE32_VERSION)
179 Mod_LoadSkinFrame_Internal(&loadmodel->sprite.sprdata_frames[realframes].texture.skinframes[0], name, (r_mipsprites.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE | TEXF_PICMIP, false, false, datapointer, width, height, 32, NULL, NULL);
180 else //if (version == SPRITE_VERSION || version == SPRITEHL_VERSION)
181 Mod_LoadSkinFrame_Internal(&loadmodel->sprite.sprdata_frames[realframes].texture.skinframes[0], name, (r_mipsprites.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE | TEXF_PICMIP, false, false, datapointer, width, height, 8, palette, alphapalette);
185 Mod_SpriteSetupTexture(&loadmodel->sprite.sprdata_frames[realframes], fullbright, additive);
187 if (version == SPRITE32_VERSION)
188 datapointer += width * height * 4;
189 else //if (version == SPRITE_VERSION || version == SPRITEHL_VERSION)
190 datapointer += width * height;
195 modelradius = sqrt(modelradius);
196 for (i = 0;i < 3;i++)
198 loadmodel->normalmins[i] = loadmodel->yawmins[i] = loadmodel->rotatedmins[i] = -modelradius;
199 loadmodel->normalmaxs[i] = loadmodel->yawmaxs[i] = loadmodel->rotatedmaxs[i] = modelradius;
201 loadmodel->radius = modelradius;
202 loadmodel->radius2 = modelradius * modelradius;
205 extern void R_Model_Sprite_Draw(entity_render_t *ent);
206 void Mod_IDSP_Load(model_t *mod, void *buffer, void *bufferend)
209 const unsigned char *datapointer;
211 datapointer = (unsigned char *)buffer;
213 loadmodel->type = mod_sprite;
214 loadmodel->flags2 = EF_FULLBRIGHT;
216 loadmodel->DrawSky = NULL;
217 loadmodel->Draw = R_Model_Sprite_Draw;
218 loadmodel->CompileShadowVolume = NULL;
219 loadmodel->DrawShadowVolume = NULL;
220 loadmodel->DrawLight = NULL;
222 version = LittleLong(((dsprite_t *)buffer)->version);
223 if (version == SPRITE_VERSION || version == SPRITE32_VERSION)
225 dsprite_t *pinqsprite;
227 pinqsprite = (dsprite_t *)datapointer;
228 datapointer += sizeof(dsprite_t);
230 loadmodel->numframes = LittleLong (pinqsprite->numframes);
231 loadmodel->sprite.sprnum_type = LittleLong (pinqsprite->type);
232 loadmodel->synctype = (synctype_t)LittleLong (pinqsprite->synctype);
234 Mod_Sprite_SharedSetup(datapointer, LittleLong (pinqsprite->version), NULL, NULL, false);
236 else if (version == SPRITEHL_VERSION)
239 unsigned char palette[256][4], alphapalette[256][4];
240 const unsigned char *in;
241 dspritehl_t *pinhlsprite;
243 pinhlsprite = (dspritehl_t *)datapointer;
244 datapointer += sizeof(dspritehl_t);
246 loadmodel->numframes = LittleLong (pinhlsprite->numframes);
247 loadmodel->sprite.sprnum_type = LittleLong (pinhlsprite->type);
248 loadmodel->synctype = (synctype_t)LittleLong (pinhlsprite->synctype);
249 rendermode = pinhlsprite->rendermode;
253 i = in[0] + in[1] * 256;
255 Host_Error ("Mod_IDSP_Load: unexpected number of palette colors %i (should be 256)", i);
261 for (i = 0;i < 256;i++)
263 palette[i][0] = *in++;
264 palette[i][1] = *in++;
265 palette[i][2] = *in++;
270 for (i = 0;i < 256;i++)
272 palette[i][0] = *in++;
273 palette[i][1] = *in++;
274 palette[i][2] = *in++;
277 // also passes additive == true to Mod_Sprite_SharedSetup
279 case SPRHL_INDEXALPHA:
280 for (i = 0;i < 256;i++)
282 palette[i][0] = in[765];
283 palette[i][1] = in[766];
284 palette[i][2] = in[767];
289 case SPRHL_ALPHATEST:
290 for (i = 0;i < 256;i++)
292 palette[i][0] = *in++;
293 palette[i][1] = *in++;
294 palette[i][2] = *in++;
297 palette[255][0] = palette[255][1] = palette[255][2] = palette[255][3] = 0;
298 // should this use alpha test or alpha blend? (currently blend)
301 Host_Error("Mod_IDSP_Load: unknown texFormat (%i, should be 0, 1, 2, or 3)", i);
305 for (i = 0;i < 256;i++)
307 alphapalette[i][0] = 255;
308 alphapalette[i][1] = 255;
309 alphapalette[i][2] = 255;
310 alphapalette[i][3] = palette[i][3];
313 Mod_Sprite_SharedSetup(datapointer, LittleLong (pinhlsprite->version), (unsigned int *)(&palette[0][0]), (unsigned int *)(&alphapalette[0][0]), rendermode == SPRHL_ADDITIVE);
316 Host_Error("Mod_IDSP_Load: %s has wrong version number (%i). Only %i (quake), %i (HalfLife), and %i (sprite32) supported",
317 loadmodel->name, version, SPRITE_VERSION, SPRITEHL_VERSION, SPRITE32_VERSION);
321 void Mod_IDS2_Load(model_t *mod, void *buffer, void *bufferend)
323 int i, version, fullbright;
324 const dsprite2_t *pinqsprite;
327 loadmodel->type = mod_sprite;
329 loadmodel->DrawSky = NULL;
330 loadmodel->Draw = R_Model_Sprite_Draw;
331 loadmodel->CompileShadowVolume = NULL;
332 loadmodel->DrawShadowVolume = NULL;
333 loadmodel->DrawLight = NULL;
335 pinqsprite = (dsprite2_t *)buffer;
337 version = LittleLong(pinqsprite->version);
338 if (version != SPRITE2_VERSION)
339 Host_Error("Mod_IDS2_Load: %s has wrong version number (%i should be 2 (quake 2)", loadmodel->name, version);
341 loadmodel->numframes = LittleLong (pinqsprite->numframes);
342 if (loadmodel->numframes < 1)
343 Host_Error ("Mod_IDS2_Load: Invalid # of frames: %d", loadmodel->numframes);
344 loadmodel->sprite.sprnum_type = SPR_VP_PARALLEL;
345 loadmodel->synctype = ST_SYNC;
347 // LordHavoc: hack to allow sprites to be non-fullbright
349 for (i = 0;i < MAX_QPATH && loadmodel->name[i];i++)
350 if (loadmodel->name[i] == '!')
353 loadmodel->animscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
354 loadmodel->sprite.sprdata_frames = (mspriteframe_t *)Mem_Alloc(loadmodel->mempool, sizeof(mspriteframe_t) * loadmodel->numframes);
357 for (i = 0;i < loadmodel->numframes;i++)
359 int origin[2], x, y, width, height;
360 const dsprite2frame_t *pinframe;
361 mspriteframe_t *sprframe;
363 dpsnprintf(loadmodel->animscenes[i].name, sizeof(loadmodel->animscenes[i].name), "frame %i", i);
364 loadmodel->animscenes[i].firstframe = i;
365 loadmodel->animscenes[i].framecount = 1;
366 loadmodel->animscenes[i].framerate = 10;
367 loadmodel->animscenes[i].loop = true;
369 pinframe = &pinqsprite->frames[i];
371 origin[0] = LittleLong (pinframe->origin_x);
372 origin[1] = LittleLong (pinframe->origin_y);
373 width = LittleLong (pinframe->width);
374 height = LittleLong (pinframe->height);
376 sprframe = &loadmodel->sprite.sprdata_frames[i];
378 // note that sp2 origin[0] is positive, where as it is negative in
380 sprframe->left = -origin[0];
381 sprframe->right = -origin[0] + width;
382 sprframe->up = origin[1];
383 sprframe->down = origin[1] - height;
385 x = (int)max(sprframe->left * sprframe->left, sprframe->right * sprframe->right);
386 y = (int)max(sprframe->up * sprframe->up, sprframe->down * sprframe->down);
387 if (modelradius < x + y)
390 if (width > 0 && height > 0 && cls.state != ca_dedicated)
392 Mod_LoadSkinFrame(&sprframe->texture.skinframes[0], pinframe->name, (r_mipsprites.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE | TEXF_PICMIP, false, false);
393 // TODO: use a default texture if we can't load it?
394 if (sprframe->texture.skinframes[0].base == NULL)
395 Host_Error("Mod_IDS2_Load: failed to load %s", pinframe->name);
398 Mod_SpriteSetupTexture(sprframe, fullbright, false);
401 modelradius = sqrt(modelradius);
402 for (i = 0;i < 3;i++)
404 loadmodel->normalmins[i] = loadmodel->yawmins[i] = loadmodel->rotatedmins[i] = -modelradius;
405 loadmodel->normalmaxs[i] = loadmodel->yawmaxs[i] = loadmodel->rotatedmaxs[i] = modelradius;
407 loadmodel->radius = modelradius;
408 loadmodel->radius2 = modelradius * modelradius;