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/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
Copyright (C) 2000-2013 Darklegion Development
Copyright (C) 2015-2019 GrangerHub
This file is part of Tremulous.
Tremulous 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 3 of the License,
or (at your option) any later version.
Tremulous 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 Tremulous; if not, see <https://www.gnu.org/licenses/>
===========================================================================
*/
#ifndef TR_COMMON_H
#define TR_COMMON_H
#include "qcommon/cvar.h"
#include "qcommon/q_shared.h"
#include "sys/sys_shared.h"
#include "iqm.h"
#include "qgl.h"
#include "tr_public.h"
typedef enum
{
IMGTYPE_COLORALPHA, // for color, lightmap, diffuse, and specular
IMGTYPE_NORMAL,
IMGTYPE_NORMALHEIGHT,
IMGTYPE_DELUXE, // normals are swizzled, deluxe are not
} imgType_t;
typedef enum
{
IMGFLAG_NONE = 0x0000,
IMGFLAG_MIPMAP = 0x0001,
IMGFLAG_PICMIP = 0x0002,
IMGFLAG_CUBEMAP = 0x0004,
IMGFLAG_NO_COMPRESSION = 0x0010,
IMGFLAG_NOLIGHTSCALE = 0x0020,
IMGFLAG_CLAMPTOEDGE = 0x0040,
IMGFLAG_GENNORMALMAP = 0x0100,
} imgFlags_t;
typedef struct image_s {
char imgName[MAX_QPATH]; // game path, including extension
int width, height; // source image
int uploadWidth, uploadHeight; // after power of two and picmip but not including clamp to MAX_TEXTURE_SIZE
GLuint texnum; // gl texture binding
int frameUsed; // for texture usage in frame statistics
int internalFormat;
int TMU; // only needed for voodoo2
imgType_t type;
int /*imgFlags_t*/ flags;
struct image_s* next;
} image_t;
// any change in the LIGHTMAP_* defines here MUST be reflected in
// R_FindShader() in tr_bsp.c
#define LIGHTMAP_2D -4 // shader is for 2D rendering
#define LIGHTMAP_BY_VERTEX -3 // pre-lit triangle models
#define LIGHTMAP_WHITEIMAGE -2
#define LIGHTMAP_NONE -1
extern refimport_t ri;
extern glconfig_t glConfig; // outside of TR since it shouldn't be cleared during ref re-init
//
// cvars
//
extern cvar_t *r_stencilbits; // number of desired stencil bits
extern cvar_t *r_depthbits; // number of desired depth bits
extern cvar_t *r_colorbits; // number of desired color bits, only relevant for fullscreen
extern cvar_t *r_alphabits; // number of desired alpha bits
extern cvar_t *r_texturebits; // number of desired texture bits
extern cvar_t *r_ext_multisample;
// 0 = use framebuffer depth
// 16 = use 16-bit textures
// 32 = use 32-bit textures
// all else = error
extern cvar_t *r_width;
extern cvar_t *r_height;
extern cvar_t *r_pixelAspect;
extern cvar_t *r_noborder;
extern cvar_t *r_fullscreen;
extern cvar_t *r_ignorehwgamma; // overrides hardware gamma capabilities
extern cvar_t *r_drawBuffer;
extern cvar_t *r_swapInterval;
extern cvar_t *r_allowExtensions; // global enable/disable of OpenGL extensions
extern cvar_t *r_ext_compressed_textures; // these control use of specific extensions
extern cvar_t *r_ext_multitexture;
extern cvar_t *r_ext_compiled_vertex_array;
extern cvar_t *r_ext_texture_env_add;
extern cvar_t *r_ext_texture_filter_anisotropic;
extern cvar_t *r_ext_max_anisotropy;
extern cvar_t *r_stereoEnabled;
extern cvar_t *r_saveFontData;
qboolean R_GetModeInfo( int *width, int *height, float *windowAspect, int mode );
float R_NoiseGet4f( float x, float y, float z, double t );
void R_NoiseInit( void );
image_t *R_FindImageFile( const char *name, imgType_t type, int/*imgFlags_t*/ flags );
image_t *R_CreateImage( const char *name, byte *pic, int width, int height, imgType_t type, int flags, int internalFormat );
void R_IssuePendingRenderCommands( void );
qhandle_t RE_RegisterShaderLightMap( const char *name, int lightmapIndex );
qhandle_t RE_RegisterShader( const char *name );
qhandle_t RE_RegisterShaderNoMip( const char *name );
qhandle_t RE_RegisterShaderFromImage(const char *name, int lightmapIndex, image_t *image, qboolean mipRawImage);
// font stuff
void R_InitFreeType( void );
void R_DoneFreeType( void );
void RE_RegisterFont(const char *fontName, int pointSize, fontInfo_t *font);
/*
=============================================================
IMAGE LOADERS
=============================================================
*/
void R_LoadBMP( const char *name, byte **pic, int *width, int *height );
void R_LoadJPG( const char *name, byte **pic, int *width, int *height );
void R_LoadPCX( const char *name, byte **pic, int *width, int *height );
void R_LoadPNG( const char *name, byte **pic, int *width, int *height );
void R_LoadTGA( const char *name, byte **pic, int *width, int *height );
/*
====================================================================
IMPLEMENTATION SPECIFIC FUNCTIONS
====================================================================
*/
void GLimp_Init( bool );
void GLimp_Shutdown( void );
void GLimp_EndFrame( void );
void GLimp_LogComment(const char *comment);
void GLimp_Minimize(void);
void GLimp_SetGamma( unsigned char red[256], unsigned char green[256], unsigned char blue[256] );
#endif
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