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1.1 root 1: /*
2: Copyright (C) 1996-1997 Id Software, Inc.
3:
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.
8:
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.
12:
13: See the GNU General Public License for more details.
14:
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.
18:
19: */
20: // disable data conversion warnings
21:
22: #pragma warning(disable : 4244) // MIPS
23: #pragma warning(disable : 4136) // X86
24: #pragma warning(disable : 4051) // ALPHA
25:
26: #ifdef _WIN32
27: #include <windows.h>
28: #endif
29:
30: #include <GL/gl.h>
31: #include <GL/glu.h>
32:
33: void GL_BeginRendering (int *x, int *y, int *width, int *height);
34: void GL_EndRendering (void);
35:
36:
37: // Function prototypes for the Texture Object Extension routines
38: typedef GLboolean (APIENTRY *ARETEXRESFUNCPTR)(GLsizei, const GLuint *,
39: const GLboolean *);
40: typedef void (APIENTRY *BINDTEXFUNCPTR)(GLenum, GLuint);
41: typedef void (APIENTRY *DELTEXFUNCPTR)(GLsizei, const GLuint *);
42: typedef void (APIENTRY *GENTEXFUNCPTR)(GLsizei, GLuint *);
43: typedef GLboolean (APIENTRY *ISTEXFUNCPTR)(GLuint);
44: typedef void (APIENTRY *PRIORTEXFUNCPTR)(GLsizei, const GLuint *,
45: const GLclampf *);
46: typedef void (APIENTRY *TEXSUBIMAGEPTR)(int, int, int, int, int, int, int, int, void *);
47:
48: extern BINDTEXFUNCPTR bindTexFunc;
49: extern DELTEXFUNCPTR delTexFunc;
50: extern TEXSUBIMAGEPTR TexSubImage2DFunc;
51:
52: extern int texture_extension_number;
53: extern int texture_mode;
54:
55: extern float gldepthmin, gldepthmax;
56:
57: void GL_Upload32 (unsigned *data, int width, int height, qboolean mipmap, qboolean alpha);
58: void GL_Upload8 (byte *data, int width, int height, qboolean mipmap, qboolean alpha);
59: void GL_Upload8_EXT (byte *data, int width, int height, qboolean mipmap, qboolean alpha);
60: int GL_LoadTexture (char *identifier, int width, int height, byte *data, qboolean mipmap, qboolean alpha);
61: int GL_FindTexture (char *identifier);
62:
63: typedef struct
64: {
65: float x, y, z;
66: float s, t;
67: float r, g, b;
68: } glvert_t;
69:
70: extern glvert_t glv;
71:
72: extern int glx, gly, glwidth, glheight;
73:
74: #ifdef _WIN32
75: extern PROC glArrayElementEXT;
76: extern PROC glColorPointerEXT;
77: extern PROC glTexturePointerEXT;
78: extern PROC glVertexPointerEXT;
79: #endif
80:
81: // r_local.h -- private refresh defs
82:
83: #define ALIAS_BASE_SIZE_RATIO (1.0 / 11.0)
84: // normalizing factor so player model works out to about
85: // 1 pixel per triangle
86: #define MAX_LBM_HEIGHT 480
87:
88: #define TILE_SIZE 128 // size of textures generated by R_GenTiledSurf
89:
90: #define SKYSHIFT 7
91: #define SKYSIZE (1 << SKYSHIFT)
92: #define SKYMASK (SKYSIZE - 1)
93:
94: #define BACKFACE_EPSILON 0.01
95:
96:
97: void R_TimeRefresh_f (void);
98: void R_ReadPointFile_f (void);
99: texture_t *R_TextureAnimation (texture_t *base);
100:
101: typedef struct surfcache_s
102: {
103: struct surfcache_s *next;
104: struct surfcache_s **owner; // NULL is an empty chunk of memory
105: int lightadj[MAXLIGHTMAPS]; // checked for strobe flush
106: int dlight;
107: int size; // including header
108: unsigned width;
109: unsigned height; // DEBUG only needed for debug
110: float mipscale;
111: struct texture_s *texture; // checked for animating textures
112: byte data[4]; // width*height elements
113: } surfcache_t;
114:
115:
116: typedef struct
117: {
118: pixel_t *surfdat; // destination for generated surface
119: int rowbytes; // destination logical width in bytes
120: msurface_t *surf; // description for surface to generate
121: fixed8_t lightadj[MAXLIGHTMAPS];
122: // adjust for lightmap levels for dynamic lighting
123: texture_t *texture; // corrected for animating textures
124: int surfmip; // mipmapped ratio of surface texels / world pixels
125: int surfwidth; // in mipmapped texels
126: int surfheight; // in mipmapped texels
127: } drawsurf_t;
128:
129:
130: typedef enum {
131: pt_static, pt_grav, pt_slowgrav, pt_fire, pt_explode, pt_explode2, pt_blob, pt_blob2
132: } ptype_t;
133:
134: // !!! if this is changed, it must be changed in d_ifacea.h too !!!
135: typedef struct particle_s
136: {
137: // driver-usable fields
138: vec3_t org;
139: float color;
140: // drivers never touch the following fields
141: struct particle_s *next;
142: vec3_t vel;
143: float ramp;
144: float die;
145: ptype_t type;
146: } particle_t;
147:
148:
149: //====================================================
150:
151:
152: extern entity_t r_worldentity;
153: extern qboolean r_cache_thrash; // compatability
154: extern vec3_t modelorg, r_entorigin;
155: extern entity_t *currententity;
156: extern int r_visframecount; // ??? what difs?
157: extern int r_framecount;
158: extern mplane_t frustum[4];
159: extern int c_brush_polys, c_alias_polys;
160:
161:
162: //
163: // view origin
164: //
165: extern vec3_t vup;
166: extern vec3_t vpn;
167: extern vec3_t vright;
168: extern vec3_t r_origin;
169:
170: //
171: // screen size info
172: //
173: extern refdef_t r_refdef;
174: extern mleaf_t *r_viewleaf, *r_oldviewleaf;
175: extern texture_t *r_notexture_mip;
176: extern int d_lightstylevalue[256]; // 8.8 fraction of base light value
177:
178: extern qboolean envmap;
179: extern int currenttexture;
180: extern int cnttextures[2];
181: extern int particletexture;
182: extern int netgraphtexture; // netgraph texture
183: extern int playertextures;
184:
185: extern int skytexturenum; // index in cl.loadmodel, not gl texture object
186:
187: extern cvar_t r_norefresh;
188: extern cvar_t r_drawentities;
189: extern cvar_t r_drawworld;
190: extern cvar_t r_drawviewmodel;
191: extern cvar_t r_speeds;
192: extern cvar_t r_waterwarp;
193: extern cvar_t r_fullbright;
194: extern cvar_t r_lightmap;
195: extern cvar_t r_shadows;
196: extern cvar_t r_mirroralpha;
197: extern cvar_t r_wateralpha;
198: extern cvar_t r_dynamic;
199: extern cvar_t r_novis;
200: extern cvar_t r_netgraph;
201:
202: extern cvar_t gl_clear;
203: extern cvar_t gl_cull;
204: extern cvar_t gl_poly;
205: extern cvar_t gl_texsort;
206: extern cvar_t gl_smoothmodels;
207: extern cvar_t gl_affinemodels;
208: extern cvar_t gl_polyblend;
209: extern cvar_t gl_keeptjunctions;
210: extern cvar_t gl_reporttjunctions;
211: extern cvar_t gl_flashblend;
212: extern cvar_t gl_nocolors;
213: extern cvar_t gl_finish;
214:
215: extern int gl_lightmap_format;
216: extern int gl_solid_format;
217: extern int gl_alpha_format;
218:
219: extern cvar_t gl_max_size;
220: extern cvar_t gl_playermip;
221:
222: extern int mirrortexturenum; // quake texturenum, not gltexturenum
223: extern qboolean mirror;
224: extern mplane_t *mirror_plane;
225:
226: extern float r_world_matrix[16];
227:
228: extern const char *gl_vendor;
229: extern const char *gl_renderer;
230: extern const char *gl_version;
231: extern const char *gl_extensions;
232:
233: void R_TranslatePlayerSkin (int playernum);
234: void GL_Bind (int texnum);
235:
236: // Multitexture
237: #define TEXTURE0_SGIS 0x835E
238: #define TEXTURE1_SGIS 0x835F
239:
240: #ifdef _WIN32
241: typedef void (APIENTRY *lpMTexFUNC) (GLenum, GLfloat, GLfloat);
242: typedef void (APIENTRY *lpSelTexFUNC) (GLenum);
243: extern lpMTexFUNC qglMTexCoord2fSGIS;
244: extern lpSelTexFUNC qglSelectTextureSGIS;
245: #endif
246:
247: extern qboolean gl_mtexable;
248:
249: void GL_DisableMultitexture(void);
250: void GL_EnableMultitexture(void);
251:
252: //
253: // gl_warp.c
254: //
255: void GL_SubdivideSurface (msurface_t *fa);
256: void EmitBothSkyLayers (msurface_t *fa);
257: void EmitWaterPolys (msurface_t *fa);
258: void EmitSkyPolys (msurface_t *fa);
259: void R_DrawSkyChain (msurface_t *s);
260:
261: //
262: // gl_draw.c
263: //
264: int GL_LoadPicTexture (qpic_t *pic);
265: void GL_Set2D (void);
266:
267: //
268: // gl_rmain.c
269: //
270: qboolean R_CullBox (vec3_t mins, vec3_t maxs);
271: void R_RotateForEntity (entity_t *e);
272:
273: //
274: // gl_rlight.c
275: //
276: void R_MarkLights (dlight_t *light, int bit, mnode_t *node);
277: void R_AnimateLight (void);
278: void R_RenderDlights (void);
279: int R_LightPoint (vec3_t p);
280:
281: //
282: // gl_refrag.c
283: //
284: void R_StoreEfrags (efrag_t **ppefrag);
285:
286: //
287: // gl_mesh.c
288: //
289: void GL_MakeAliasModelDisplayLists (model_t *m, aliashdr_t *hdr);
290:
291: //
292: // gl_rsurf.c
293: //
294: void R_DrawBrushModel (entity_t *e);
295: void R_DrawWorld (void);
296: void GL_BuildLightmaps (void);
297:
298: //
299: // gl_ngraph.c
300: //
301: void R_NetGraph (void);
302:
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