234 lines
6.2 KiB
C
234 lines
6.2 KiB
C
/*
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glquake.h
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OpenGL-specific definitions and prototypes
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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$Id$
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*/
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#ifndef __glquake_h
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#define __glquake_h
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#ifdef HAVE_WINDOWS_H
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# include <windows.h>
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#endif
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#include <GL/gl.h>
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#include "QF/cvar.h"
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#include "QF/model.h"
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#include "QF/qfgl_ext.h"
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#include "QF/wad.h"
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void GL_BeginRendering (int *x, int *y, int *width, int *height);
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void GL_EndRendering (void);
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extern int texture_extension_number;
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extern int texture_mode;
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extern float gldepthmin, gldepthmax;
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void GL_Upload8 (byte *data, int width, int height, qboolean mipmap, qboolean alpha);
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void GL_Upload8_EXT (byte *data, int width, int height, qboolean mipmap, qboolean alpha);
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int GL_LoadTexture (char *identifier, int width, int height, byte *data, qboolean mipmap, qboolean alpha, int bytesperpixel);
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int GL_FindTexture (char *identifier);
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extern int glx, gly, glwidth, glheight;
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#define ALIAS_BASE_SIZE_RATIO (1.0 / 11.0)
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// normalizing factor so player model works out to about
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// 1 pixel per triangle
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#define MAX_LBM_HEIGHT 480
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#define MAX_GLTEXTURES 2048
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#define TILE_SIZE 128 // size of textures generated by R_GenTiledSurf
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#define SKYSHIFT 7
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#define SKYSIZE (1 << SKYSHIFT)
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#define SKYMASK (SKYSIZE - 1)
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#define SKY_TEX 2000 // Quake 2 environment sky
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#define BACKFACE_EPSILON 0.01
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#define NUM_GRAPH_TEXTURES 8
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extern qboolean envmap;
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extern int currenttexture;
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extern int cnttextures[2];
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extern int particletexture;
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extern int graph_texture[NUM_GRAPH_TEXTURES];
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extern int netgraphtexture; // netgraph texture
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extern int skytexturenum; // index in cl.loadmodel, not gl texture object
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extern cvar_t *r_novis;
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extern cvar_t *r_particles;
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extern cvar_t *r_norefresh;
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extern cvar_t *r_drawviewmodel;
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extern cvar_t *r_shadows;
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extern cvar_t *r_wateralpha;
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extern cvar_t *r_waterripple;
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extern cvar_t *r_dynamic;
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extern cvar_t *r_netgraph;
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extern cvar_t *r_lightmap;
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extern cvar_t *r_mirroralpha;
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extern cvar_t *gl_affinemodels;
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extern cvar_t *gl_clear;
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extern cvar_t *gl_cull;
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extern cvar_t *gl_poly;
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extern cvar_t *gl_texsort;
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extern cvar_t *gl_smoothmodels;
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extern cvar_t *gl_affinemodels;
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extern cvar_t *gl_polyblend;
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extern cvar_t *gl_fb_bmodels;
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extern cvar_t *gl_fb_models;
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extern cvar_t *gl_dlight_lightmap;
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extern cvar_t *gl_dlight_polyblend;
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extern cvar_t *gl_dlight_smooth;
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extern cvar_t *gl_keeptjunctions;
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extern cvar_t *gl_reporttjunctions;
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extern cvar_t *gl_flashblend;
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extern cvar_t *gl_multitexture;
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extern cvar_t *gl_nocolors;
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extern cvar_t *gl_doubleeyes;
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extern cvar_t *gl_ztrick;
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extern cvar_t *gl_finish;
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extern cvar_t *gl_clear;
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extern cvar_t *gl_subdivide_size;
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extern cvar_t *gl_particles;
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extern cvar_t *gl_fires;
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extern cvar_t *gl_fb_models;
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extern cvar_t *gl_fb_bmodels;
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extern cvar_t *gl_poly;
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extern cvar_t *gl_polyblend;
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extern cvar_t *gl_max_size;
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extern cvar_t *gl_playermip;
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extern cvar_t *r_skyname;
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extern cvar_t *gl_skymultipass;
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extern cvar_t *gl_sky_clip;
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extern cvar_t *gl_sky_divide;
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extern int mirrortexturenum; // quake texturenum, not gltexturenum
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extern qboolean mirror;
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extern qboolean lighthalf;
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extern mplane_t *mirror_plane;
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extern int gl_lightmap_format;
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extern int gl_solid_format;
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extern int gl_alpha_format;
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extern unsigned char lighthalf_v[3];
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extern const char *gl_vendor;
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extern const char *gl_renderer;
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extern const char *gl_version;
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extern const char *gl_extensions;
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void GL_Bind (int texnum);
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// Multitexture
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#define TEXTURE0_SGIS 0x835E
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#define TEXTURE1_SGIS 0x835F
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#ifndef APIENTRY
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# ifndef _WIN32
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# define APIENTRY /* */
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# endif
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#endif
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typedef void (APIENTRY *lpMTexFUNC) (GLenum, GLfloat, GLfloat);
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typedef void (APIENTRY *lpSelTexFUNC) (GLenum);
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extern lpMTexFUNC qglMTexCoord2fSGIS;
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extern lpSelTexFUNC qglSelectTextureSGIS;
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extern lpMTexFUNC qglMTexCoord2f;
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extern lpSelTexFUNC qglSelectTexture;
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extern qboolean gl_mtexable;
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void GL_SubdivideSurface (msurface_t *fa);
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// Multitexturing
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extern QF_glActiveTextureARB qglActiveTexture;
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extern QF_glMultiTexCoord2fARB qglMultiTexCoord2f;
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extern qboolean gl_mtex_capable;
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extern GLenum gl_mtex_enum;
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// convenience check
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#define gl_mtex_active (gl_mtex_capable && gl_multitexture->int_val)
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void GL_DisableMultitexture (void);
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void GL_EnableMultitexture (void);
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struct model_s;
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void GL_BuildLightmaps (struct model_s **models, int num_models);
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void GL_Upload8_EXT (byte *data, int width, int height, qboolean mipmap, qboolean alpha) ;
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void GL_Set2D (void);
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void GL_CheckGamma (unsigned char *pal);
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void GL_CheckBrightness (unsigned char *pal);
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typedef struct {
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int key; // allows reusability
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vec3_t origin, owner;
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float size;
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float die, decay; // duration settings
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float minlight; // lighting threshold
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float color[3]; // RGB
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} fire_t;
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struct entity_s;
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void R_AddFire (vec3_t, vec3_t, struct entity_s *ent);
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fire_t *R_AllocFire (int);
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void R_DrawFire (fire_t *);
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void R_UpdateFires (void);
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void R_DrawBrushModel (struct entity_s *e);
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void R_DrawWorld (void);
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void R_RenderDlights (void);
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void R_DrawSky (void);
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void R_DrawSkyChain (msurface_t *s);
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void EmitWaterPolys (msurface_t *fa);
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void R_RotateForEntity (struct entity_s *e);
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void EmitWaterPolys (msurface_t *fa);
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void R_NetGraph (void);
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void R_LoadSkys (const char *sky);
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extern float bubble_sintable[], bubble_costable[];
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extern float v_blend[4];
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void AddLightBlend (float, float, float, float);
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extern int c_brush_polys, c_alias_polys;
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extern float r_world_matrix[16];
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int R_InitGraphTextures (int base);
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#endif // __glquake_h
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