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glquake/source/glquake.h
Ian c708c4d8a8 Implement skybox support
2023-10-13 13:54:40 -04:00

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/*
Copyright (C) 1996-1997 Id Software, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef _WIN32
#include <windows.h>
#endif
#include <GL/gl.h>
#include <GL/glu.h>
void GL_BeginRendering (int *x, int *y, int *width, int *height);
void GL_EndRendering (void);
#ifdef _WIN32
// Function prototypes for the Texture Object Extension routines
typedef GLboolean (APIENTRY *ARETEXRESFUNCPTR)(GLsizei, const GLuint *,
const GLboolean *);
typedef void (APIENTRY *BINDTEXFUNCPTR)(GLenum, GLuint);
typedef void (APIENTRY *DELTEXFUNCPTR)(GLsizei, const GLuint *);
typedef void (APIENTRY *GENTEXFUNCPTR)(GLsizei, GLuint *);
typedef GLboolean (APIENTRY *ISTEXFUNCPTR)(GLuint);
typedef void (APIENTRY *PRIORTEXFUNCPTR)(GLsizei, const GLuint *,
const GLclampf *);
typedef void (APIENTRY *TEXSUBIMAGEPTR)(int, int, int, int, int, int, int, int, void *);
extern BINDTEXFUNCPTR bindTexFunc;
extern DELTEXFUNCPTR delTexFunc;
extern TEXSUBIMAGEPTR TexSubImage2DFunc;
#endif
extern int texture_extension_number;
extern int texture_mode;
extern float gldepthmin, gldepthmax;
void GL_Upload32 (unsigned *data, int width, int height, qboolean mipmap, qboolean alpha);
void GL_Upload8 (byte *data, int width, int height, qboolean mipmap, qboolean alpha);
int GL_LoadTexture (char *identifier, int width, int height, byte *data, qboolean mipmap, qboolean alpha, int bytesperpixel);
int GL_FindTexture (char *identifier);
typedef struct
{
float x, y, z;
float s, t;
float r, g, b;
} glvert_t;
extern glvert_t glv;
extern int glx, gly, glwidth, glheight;
#ifdef _WIN32
extern PROC glArrayElementEXT;
extern PROC glColorPointerEXT;
extern PROC glTexturePointerEXT;
extern PROC glVertexPointerEXT;
#endif
/*
---------------------------------
half-life Render Modes. Crow_bar
---------------------------------
*/
#define TEX_COLOR 1
#define TEX_TEXTURE 2
#define TEX_GLOW 3
#define TEX_SOLID 4
#define TEX_ADDITIVE 5
#define TEX_LMPOINT 6 //for light point
#define ISCOLOR(ent) ((ent)->rendermode == TEX_COLOR && ((ent)->rendercolor[0] <= 1|| \
(ent)->rendercolor[1] <= 1|| \
(ent)->rendercolor[2] <= 1))
#define ISTEXTURE(ent) ((ent)->rendermode == TEX_TEXTURE && (ent)->renderamt > 0 && (ent)->renderamt <= 1)
#define ISGLOW(ent) ((ent)->rendermode == TEX_GLOW && (ent)->renderamt > 0 && (ent)->renderamt <= 1)
#define ISSOLID(ent) ((ent)->rendermode == TEX_SOLID && (ent)->renderamt > 0 && (ent)->renderamt <= 1)
#define ISADDITIVE(ent) ((ent)->rendermode == TEX_ADDITIVE && (ent)->renderamt > 0 && (ent)->renderamt <= 1)
#define ISLMPOINT(ent) ((ent)->rendermode == TEX_LMPOINT && ((ent)->rendercolor[0] <= 1|| \
(ent)->rendercolor[1] <= 1|| \
(ent)->rendercolor[2] <= 1))
/*
---------------------------------
//half-life Render Modes
---------------------------------
*/
// r_local.h -- private refresh defs
#define ALIAS_BASE_SIZE_RATIO (1.0 / 11.0)
// normalizing factor so player model works out to about
// 1 pixel per triangle
#define MAX_LBM_HEIGHT 480
#define TILE_SIZE 128 // size of textures generated by R_GenTiledSurf
#define SKYSHIFT 7
#define SKYSIZE (1 << SKYSHIFT)
#define SKYMASK (SKYSIZE - 1)
#define BACKFACE_EPSILON 0.01
void R_TimeRefresh_f (void);
void R_ReadPointFile_f (void);
texture_t *R_TextureAnimation (texture_t *base);
typedef struct surfcache_s
{
struct surfcache_s *next;
struct surfcache_s **owner; // NULL is an empty chunk of memory
int lightadj[MAXLIGHTMAPS]; // checked for strobe flush
int dlight;
int size; // including header
unsigned width;
unsigned height; // DEBUG only needed for debug
float mipscale;
struct texture_s *texture; // checked for animating textures
byte data[4]; // width*height elements
} surfcache_t;
typedef enum
{
pm_classic, pm_qmb, pm_quake3, pm_mixed
} part_mode_t;
typedef struct
{
pixel_t *surfdat; // destination for generated surface
int rowbytes; // destination logical width in bytes
msurface_t *surf; // description for surface to generate
fixed8_t lightadj[MAXLIGHTMAPS];
// adjust for lightmap levels for dynamic lighting
texture_t *texture; // corrected for animating textures
int surfmip; // mipmapped ratio of surface texels / world pixels
int surfwidth; // in mipmapped texels
int surfheight; // in mipmapped texels
} drawsurf_t;
typedef enum {
pt_static, pt_grav, pt_slowgrav, pt_fire, pt_explode, pt_explode2, pt_blob, pt_blob2
} ptype_t;
typedef byte col_t[4];
typedef struct particle_s
{
struct particle_s *next;
vec3_t org, endorg;
col_t color;
float growth;
vec3_t vel;
float ramp;
ptype_t type;
float rotangle;
float rotspeed;
float size;
float start;
float die;
byte hit;
byte texindex;
byte bounces;
} particle_t;
//====================================================
extern entity_t r_worldentity;
extern qboolean r_cache_thrash; // compatability
extern vec3_t modelorg, r_entorigin;
extern entity_t *currententity;
extern int r_visframecount; // ??? what difs?
extern int r_framecount;
extern mplane_t frustum[4];
extern int c_brush_polys, c_alias_polys;
//
// view origin
//
extern vec3_t vup;
extern vec3_t vpn;
extern vec3_t vright;
extern vec3_t r_origin;
//
// screen size info
//
extern refdef_t r_refdef;
extern mleaf_t *r_viewleaf, *r_oldviewleaf;
extern texture_t *r_notexture_mip;
extern int d_lightstylevalue[256]; // 8.8 fraction of base light value
extern qboolean envmap;
extern int currenttexture;
extern int cnttextures[2];
extern int particletexture;
extern int playertextures;
extern int skytexturenum; // index in cl.loadmodel, not gl texture object
extern cvar_t r_norefresh;
extern cvar_t r_drawentities;
extern cvar_t r_drawworld;
extern cvar_t r_drawviewmodel;
extern cvar_t r_speeds;
extern cvar_t r_waterwarp;
extern cvar_t r_fullbright;
extern cvar_t r_lightmap;
extern cvar_t r_shadows;
extern cvar_t r_mirroralpha;
extern cvar_t r_wateralpha;
extern cvar_t r_dynamic;
extern cvar_t r_novis;
extern cvar_t r_lerpmodels;
extern cvar_t r_lerpmove;
extern cvar_t r_farclip;
extern cvar_t r_skyfog;
extern cvar_t r_laserpoint;
extern cvar_t r_particle_count;
extern cvar_t r_part_explosions;
extern cvar_t r_part_trails;
extern cvar_t r_part_sparks;
extern cvar_t r_part_spikes;
extern cvar_t r_part_gunshots;
extern cvar_t r_part_blood;
extern cvar_t r_part_telesplash;
extern cvar_t r_part_blobs;
extern cvar_t r_part_lavasplash;
extern cvar_t r_part_flames;
extern cvar_t r_part_lightning;
extern cvar_t r_part_flies;
extern cvar_t r_bounceparticles;
extern cvar_t r_explosiontype;
extern cvar_t r_part_muzzleflash;
extern cvar_t r_flametype;
extern cvar_t r_bounceparticles;
extern cvar_t r_decal_blood;
extern cvar_t r_decal_bullets;
extern cvar_t r_decal_sparks;
extern cvar_t r_decal_explosions;
extern cvar_t r_coronas;
extern cvar_t r_model_brightness;
extern cvar_t gl_clear;
extern cvar_t gl_cull;
extern cvar_t gl_poly;
extern cvar_t gl_texsort;
extern cvar_t gl_smoothmodels;
extern cvar_t gl_affinemodels;
extern cvar_t gl_polyblend;
extern cvar_t gl_keeptjunctions;
extern cvar_t gl_reporttjunctions;
extern cvar_t gl_flashblend;
extern cvar_t gl_nocolors;
extern cvar_t gl_doubleeyes;
extern int gl_lightmap_format;
extern int gl_solid_format;
extern int gl_alpha_format;
extern cvar_t gl_max_size;
extern cvar_t gl_playermip;
extern int mirrortexturenum; // quake texturenum, not gltexturenum
extern qboolean mirror;
extern mplane_t *mirror_plane;
extern float r_world_matrix[16];
extern const char *gl_vendor;
extern const char *gl_renderer;
extern const char *gl_version;
extern const char *gl_extensions;
void R_TranslatePlayerSkin (int playernum);
void GL_Bind (int texnum);
// Multitexture
#define TEXTURE0_SGIS 0x835E
#define TEXTURE1_SGIS 0x835F
#ifndef _WIN32
#define APIENTRY /* */
#endif
typedef void (APIENTRY *lpMTexFUNC) (GLenum, GLfloat, GLfloat);
typedef void (APIENTRY *lpSelTexFUNC) (GLenum);
extern lpMTexFUNC qglMTexCoord2fSGIS;
extern lpSelTexFUNC qglSelectTextureSGIS;
extern qboolean gl_mtexable;
void GL_DisableMultitexture(void);
void GL_EnableMultitexture(void);
//johnfitz -- fog functions called from outside gl_fog.c
void Fog_ParseServerMessage (void);
float *Fog_GetColor (void);
float Fog_GetDensity (void);
void Fog_EnableGFog (void);
void Fog_DisableGFog (void);
void Fog_StartAdditive (void);
void Fog_StopAdditive (void);
void Fog_SetupFrame (void);
void Fog_NewMap (void);
void Fog_Init (void);
void Fog_SetupState (void);
void Sky_Init (void);
void Sky_NewMap (void);
qboolean VID_Is8bit(void);
// naievil -- fixme: none of these work
//-----------------------------------------------------
void QMB_InitParticles (void);
void QMB_ClearParticles (void);
void QMB_DrawParticles (void);
void QMB_Q3TorchFlame (vec3_t org, float size);
void QMB_RunParticleEffect (vec3_t org, vec3_t dir, int color, int count);
void QMB_RocketTrail (vec3_t start, vec3_t end, trail_type_t type);
void QMB_RayFlash (vec3_t org, float weapon);
void QMB_BlobExplosion (vec3_t org);
void QMB_ParticleExplosion (vec3_t org);
void QMB_LavaSplash (vec3_t org);
void QMB_TeleportSplash (vec3_t org);
void QMB_InfernoFlame (vec3_t org);
void QMB_StaticBubble (entity_t *ent);
void QMB_ColorMappedExplosion (vec3_t org, int colorStart, int colorLength);
void QMB_TorchFlame (vec3_t org);
void QMB_FlameGt (vec3_t org, float size, float time);
void QMB_BigTorchFlame (vec3_t org);
void QMB_ShamblerCharge (vec3_t org);
void QMB_LightningBeam (vec3_t start, vec3_t end);
//void QMB_GenSparks (vec3_t org, byte col[3], float count, float size, float life);
void QMB_EntityParticles (entity_t *ent);
void QMB_MuzzleFlash (vec3_t org);
void QMB_MuzzleFlashLG (vec3_t org);
void QMB_Q3Gunshot (vec3_t org, int skinnum, float alpha);
void QMB_Q3Teleport (vec3_t org, float alpha);
void QMB_Q3TorchFlame (vec3_t org, float size);
extern qboolean qmb_initialized;
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