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"};
35 void Mod_SpriteInit (void)
37 Cvar_RegisterVariable(&r_mipsprites);
40 static void Mod_Sprite_StripExtension(char *in, char *out)
43 end = in + strlen(in);
45 if (strcmp(end - 6, ".spr32") == 0)
48 if (strcmp(end - 4, ".spr") == 0)
55 static int alphaonlytable[4] = {255 | 0x80000000, 255 | 0x80000000, 255 | 0x80000000, 3};
56 static void Mod_Sprite_SharedSetup(qbyte *datapointer, int version, int *palette, int *alphapalette)
58 int i, j, groupframes, realframes, x, y, origin[2], width, height;
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];
69 if (loadmodel->numframes < 1)
70 Host_Error ("Mod_Sprite_SharedSetup: Invalid # of frames: %d\n", loadmodel->numframes);
72 loadmodel->type = mod_sprite;
73 loadmodel->flags = EF_FULLBRIGHT;
75 // LordHavoc: hack to allow sprites to be non-fullbright
76 for (i = 0;i < MAX_QPATH && loadmodel->name[i];i++)
78 if (loadmodel->name[i] == '!')
80 loadmodel->flags &= ~EF_FULLBRIGHT;
85 // LordHavoc: 32bit textures
86 if (version != SPRITE_VERSION && version != SPRITE32_VERSION && version != SPRITEHL_VERSION)
87 Host_Error("Mod_Sprite_SharedSetup: unsupported version %i, only %i (quake), %i (HalfLife), and %i (sprite32) supported", version, SPRITE_VERSION, SPRITEHL_VERSION, SPRITE32_VERSION);
92 startframes = datapointer;
94 for (i = 0;i < loadmodel->numframes;i++)
96 pinframetype = (dspriteframetype_t *)datapointer;
97 datapointer += sizeof(dspriteframetype_t);
99 if (LittleLong (pinframetype->type) == SPR_SINGLE)
103 pingroup = (dspritegroup_t *)datapointer;
104 datapointer += sizeof(dspritegroup_t);
106 groupframes = LittleLong(pingroup->numframes);
108 datapointer += sizeof(dspriteinterval_t) * groupframes;
111 for (j = 0;j < groupframes;j++)
113 pinframe = (dspriteframe_t *)datapointer;
114 if (version == SPRITE32_VERSION)
115 datapointer += sizeof(dspriteframe_t) + LittleLong(pinframe->width) * LittleLong(pinframe->height) * 4;
116 else //if (version == SPRITE_VERSION || version == SPRITEHL_VERSION)
117 datapointer += sizeof(dspriteframe_t) + LittleLong(pinframe->width) * LittleLong(pinframe->height);
119 realframes += groupframes;
122 loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
123 loadmodel->sprite.sprdata_frames = Mem_Alloc(loadmodel->mempool, sizeof(mspriteframe_t) * realframes);
125 datapointer = startframes;
127 for (i = 0;i < loadmodel->numframes;i++)
129 pinframetype = (dspriteframetype_t *)datapointer;
130 datapointer += sizeof(dspriteframetype_t);
132 if (LittleLong (pinframetype->type) == SPR_SINGLE)
139 pingroup = (dspritegroup_t *)datapointer;
140 datapointer += sizeof(dspritegroup_t);
142 groupframes = LittleLong(pingroup->numframes);
144 pinintervals = (dspriteinterval_t *)datapointer;
145 datapointer += sizeof(dspriteinterval_t) * groupframes;
147 interval = LittleFloat(pinintervals[0].interval);
148 if (interval < 0.01f)
149 Host_Error("Mod_Sprite_SharedSetup: invalid interval");
152 sprintf(loadmodel->animscenes[i].name, "frame %i", i);
153 loadmodel->animscenes[i].firstframe = realframes;
154 loadmodel->animscenes[i].framecount = groupframes;
155 loadmodel->animscenes[i].framerate = 1.0f / interval;
156 loadmodel->animscenes[i].loop = true;
158 for (j = 0;j < groupframes;j++)
160 pinframe = (dspriteframe_t *)datapointer;
161 datapointer += sizeof(dspriteframe_t);
163 origin[0] = LittleLong (pinframe->origin[0]);
164 origin[1] = LittleLong (pinframe->origin[1]);
165 width = LittleLong (pinframe->width);
166 height = LittleLong (pinframe->height);
168 loadmodel->sprite.sprdata_frames[realframes].left = origin[0];
169 loadmodel->sprite.sprdata_frames[realframes].right = origin[0] + width;
170 loadmodel->sprite.sprdata_frames[realframes].up = origin[1];
171 loadmodel->sprite.sprdata_frames[realframes].down = origin[1] - height;
173 x = 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);
174 y = 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);
175 if (modelradius < x + y)
178 if (width > 0 && height > 0)
181 sprintf (name, "%s_%i_%i", loadmodel->name, i, j);
183 sprintf (name, "%s_%i", loadmodel->name, i);
184 loadmodel->sprite.sprdata_frames[realframes].texture = loadtextureimagewithmask(loadmodel->texturepool, name, 0, 0, false, (r_mipsprites.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE);
185 loadmodel->sprite.sprdata_frames[realframes].fogtexture = image_masktex;
187 if (!loadmodel->sprite.sprdata_frames[realframes].texture)
190 sprintf (fogname, "%s_%i_%ifog", loadmodel->name, i, j);
192 sprintf (fogname, "%s_%ifog", loadmodel->name, i);
193 if (version == SPRITE32_VERSION)
195 loadmodel->sprite.sprdata_frames[realframes].texture = R_LoadTexture2D(loadmodel->texturepool, name, width, height, datapointer, TEXTYPE_RGBA, TEXF_ALPHA | (r_mipsprites.integer ? TEXF_MIPMAP : 0) | TEXF_CLAMP | TEXF_PRECACHE, NULL);
196 // make fog version (just alpha)
197 pixbuf = Mem_Alloc(tempmempool, width*height*4);
198 Image_CopyMux(pixbuf, datapointer, width, height, false, false, false, 4, 4, alphaonlytable);
199 loadmodel->sprite.sprdata_frames[realframes].fogtexture = R_LoadTexture2D(loadmodel->texturepool, fogname, width, height, pixbuf, TEXTYPE_RGBA, TEXF_ALPHA | (r_mipsprites.integer ? TEXF_MIPMAP : 0) | TEXF_CLAMP | TEXF_PRECACHE, NULL);
202 else //if (version == SPRITE_VERSION || version == SPRITEHL_VERSION)
204 loadmodel->sprite.sprdata_frames[realframes].texture = R_LoadTexture2D(loadmodel->texturepool, name, width, height, datapointer, TEXTYPE_PALETTE, TEXF_ALPHA | (r_mipsprites.integer ? TEXF_MIPMAP : 0) | TEXF_CLAMP | TEXF_PRECACHE, palette);
205 loadmodel->sprite.sprdata_frames[realframes].fogtexture = R_LoadTexture2D(loadmodel->texturepool, fogname, width, height, datapointer, TEXTYPE_PALETTE, TEXF_ALPHA | (r_mipsprites.integer ? TEXF_MIPMAP : 0) | TEXF_CLAMP | TEXF_PRECACHE, alphapalette);
210 if (version == SPRITE32_VERSION)
211 datapointer += width * height * 4;
212 else //if (version == SPRITE_VERSION || version == SPRITEHL_VERSION)
213 datapointer += width * height;
218 modelradius = sqrt(modelradius);
219 for (i = 0;i < 3;i++)
221 loadmodel->normalmins[i] = loadmodel->yawmins[i] = loadmodel->rotatedmins[i] = -modelradius;
222 loadmodel->normalmaxs[i] = loadmodel->yawmaxs[i] = loadmodel->rotatedmaxs[i] = modelradius;
224 loadmodel->radius = modelradius;
225 loadmodel->radius2 = modelradius * modelradius;
228 extern void R_Model_Sprite_Draw(entity_render_t *ent);
229 void Mod_IDSP_Load(model_t *mod, void *buffer)
231 int version, i, rendermode;
232 qbyte palette[256][4], alphapalette[256][4], *in;
233 dsprite_t *pinqsprite;
234 dspritehl_t *pinhlsprite;
237 datapointer = buffer;
239 loadmodel->DrawSky = NULL;
240 loadmodel->Draw = R_Model_Sprite_Draw;
241 loadmodel->DrawShadowVolume = NULL;
242 loadmodel->DrawLight = NULL;
244 version = LittleLong(((dsprite_t *)buffer)->version);
245 if (version == SPRITE_VERSION || SPRITE32_VERSION)
247 pinqsprite = (dsprite_t *)datapointer;
248 datapointer += sizeof(dsprite_t);
250 loadmodel->numframes = LittleLong (pinqsprite->numframes);
251 loadmodel->sprite.sprnum_type = LittleLong (pinqsprite->type);
252 loadmodel->synctype = LittleLong (pinqsprite->synctype);
254 Mod_Sprite_SharedSetup(datapointer, LittleLong (pinqsprite->version), palette_complete, palette_alpha);
256 else if (version == SPRITEHL_VERSION)
258 pinhlsprite = (dspritehl_t *)datapointer;
259 datapointer += sizeof(dspritehl_t);
261 loadmodel->numframes = LittleLong (pinhlsprite->numframes);
262 loadmodel->sprite.sprnum_type = LittleLong (pinhlsprite->type);
263 loadmodel->synctype = LittleLong (pinhlsprite->synctype);
264 rendermode = pinhlsprite->rendermode;
268 i = in[0] + in[1] * 256;
270 Host_Error ("Mod_IDSP_Load: unexpected number of palette colors %i (should be 256)", i);
276 for (i = 0;i < 255;i++)
278 palette[i][0] = *in++;
279 palette[i][1] = *in++;
280 palette[i][2] = *in++;
283 palette[255][0] = palette[255][1] = palette[255][2] = palette[255][3] = 0;
286 for (i = 0;i < 256;i++)
288 palette[i][0] = *in++;
289 palette[i][1] = *in++;
290 palette[i][2] = *in++;
293 loadmodel->flags |= EF_ADDITIVE;
295 case SPRHL_INDEXALPHA:
296 for (i = 0;i < 256;i++)
305 case SPRHL_ALPHATEST:
306 for (i = 0;i < 255;i++)
308 palette[i][0] = *in++;
309 palette[i][1] = *in++;
310 palette[i][2] = *in++;
313 palette[0][0] = palette[0][1] = palette[0][2] = palette[0][3] = 0;
316 Host_Error("Mod_IDSP_Load: unknown texFormat (%i, should be 0, 1, 2, or 3)\n", i);
320 for (i = 0;i < 256;i++)
322 alphapalette[i][0] = 255;
323 alphapalette[i][1] = 255;
324 alphapalette[i][2] = 255;
325 alphapalette[i][3] = palette[i][3];
328 Mod_Sprite_SharedSetup(datapointer, LittleLong (pinhlsprite->version), (int *)(&palette[0][0]), (int *)(&alphapalette[0][0]));
331 Host_Error("Mod_IDSP_Load: %s has wrong version number (%i should be 1 (quake) or 32 (sprite32) or 2 (halflife)", loadmodel->name, version);