xash3d-fwgs/r_local.h

/*
gl_local.h - renderer local declarations
Copyright (C) 2010 Uncle Mike

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 3 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.
*/

#ifndef GL_LOCAL_H
#define GL_LOCAL_H
#include "port.h"
#include "xash3d_types.h"
#include "cvardef.h"
#include "const.h"
#include "com_model.h"
#include "cl_entity.h"
#include "render_api.h"
#include "protocol.h"
#include "dlight.h"
#include "ref_api.h"
#include "mathlib.h"
#include "ref_params.h"
#include "enginefeatures.h"
#include "com_strings.h"
#include "pm_movevars.h"
//#include "cvar.h"
typedef struct mip_s mip_t;
#define offsetof(s,m)       (size_t)&(((s *)0)->m)

#define ASSERT(x) if(!( x )) gEngfuncs.Host_Error( "assert failed at %s:%i\n", __FILE__, __LINE__ )
#define Assert(x) if(!( x )) gEngfuncs.Host_Error( "assert failed at %s:%i\n", __FILE__, __LINE__ )

#include <stdio.h>

#define CVAR_DEFINE( cv, cvname, cvstr, cvflags, cvdesc )	cvar_t cv = { cvname, cvstr, cvflags, 0.0f, (void *)CVAR_SENTINEL, cvdesc }
#define CVAR_DEFINE_AUTO( cv, cvstr, cvflags, cvdesc )	cvar_t cv = { #cv, cvstr, cvflags, 0.0f, (void *)CVAR_SENTINEL, cvdesc }
#define CVAR_TO_BOOL( x )		((x) && ((x)->value != 0.0f) ? true : false )

#define WORLD (gEngfuncs.GetWorld())
#define WORLDMODEL (gEngfuncs.pfnGetModelByIndex( 1 ))
#define MOVEVARS (gEngfuncs.pfnGetMoveVars())

// make mod_ref.h?
#define LM_SAMPLE_SIZE             16


extern byte	*r_temppool;

#define BLOCK_SIZE		tr.block_size	// lightmap blocksize
#define BLOCK_SIZE_DEFAULT	128		// for keep backward compatibility
#define BLOCK_SIZE_MAX	1024

#define MAX_TEXTURES	4096
#define MAX_DETAIL_TEXTURES	256
#define MAX_LIGHTMAPS	256
#define SUBDIVIDE_SIZE	64
#define MAX_DECAL_SURFS	4096
#define MAX_DRAW_STACK	2		// normal view and menu view

#define SHADEDOT_QUANT 	16		// precalculated dot products for quantized angles
#define SHADE_LAMBERT	1.495f
#define DEFAULT_ALPHATEST	0.0f

// refparams
#define RP_NONE		0
#define RP_ENVVIEW		BIT( 0 )	// used for cubemapshot
#define RP_OLDVIEWLEAF	BIT( 1 )
#define RP_CLIPPLANE	BIT( 2 )

#define RP_NONVIEWERREF	(RP_ENVVIEW)
#define R_ModelOpaque( rm )	( rm == kRenderNormal )
#define R_StaticEntity( ent )	( VectorIsNull( ent->origin ) && VectorIsNull( ent->angles ))
#define RP_LOCALCLIENT( e )	((e) != NULL && (e)->index == gEngfuncs.GetPlayerIndex() && e->player )
#define RP_NORMALPASS()	( FBitSet( RI.params, RP_NONVIEWERREF ) == 0 )

#define CL_IsViewEntityLocalPlayer() ( gEngfuncs.GetViewEntIndex() == gEngfuncs.GetPlayerIndex() )

#define CULL_VISIBLE	0		// not culled
#define CULL_BACKSIDE	1		// backside of transparent wall
#define CULL_FRUSTUM	2		// culled by frustum
#define CULL_VISFRAME	3		// culled by PVS
#define CULL_OTHER		4		// culled by other reason

// bit operation helpers
#define MASK(x) (BIT(x+1)-1)
#define GET_BIT(s,b) ((s & (1 << b)) >> b)
#define MOVE_BIT(s, f, t) (GET_BIT(s,f) << t )


/*
  skins will be outline flood filled and mip mapped
  pics and sprites with alpha will be outline flood filled
  pic won't be mip mapped
  model skin
  sprite frame
  wall texture
  pic
*/

typedef enum
{
	it_skin,
	it_sprite,
	it_wall,
	it_pic,
	it_sky
} imagetype_t;


//===================================================================

typedef unsigned short pixel_t;

typedef struct vrect_s
{
	int                             x,y,width,height;
	struct vrect_s  *pnext;
} vrect_t;

#define COLOR_WHITE 0xFFFF
#define SEPARATE_BLIT
typedef struct
{
	pixel_t                 *buffer;                // invisible buffer
	pixel_t                 *colormap;              // 256 * VID_GRADES size
	//pixel_t                 *alphamap;              // 256 * 256 translucency map
#ifdef SEPARATE_BLIT
	pixel_t					screen_minor[256];
	pixel_t					screen_major[256];
#else
	pixel_t					screen[256*256];
#endif
	byte					addmap[256*256];
	byte					modmap[256*256];
	pixel_t                 alphamap[8*256*256];
	pixel_t					color;
	byte alpha;

	// maybe compute colormask for minor byte?
	int						rendermode;
	int                             rowbytes;               // may be > width if displayed in a window
									// can be negative for stupid dibs
	int						width;
	int						height;
} viddef_t;

extern viddef_t vid;

typedef struct
{
	int		params;		// rendering parameters

	qboolean		drawWorld;	// ignore world for drawing PlayerModel
	qboolean		isSkyVisible;	// sky is visible
	qboolean		onlyClientDraw;	// disabled by client request
	qboolean		drawOrtho;	// draw world as orthogonal projection	

	float		fov_x, fov_y;	// current view fov

	cl_entity_t	*currententity;
	model_t		*currentmodel;
	cl_entity_t	*currentbeam;	// same as above but for beams

	int		viewport[4];
	//gl_frustum_t	frustum;

	mleaf_t		*viewleaf;
	mleaf_t		*oldviewleaf;
	vec3_t		pvsorigin;
	vec3_t		vieworg;		// locked vieworigin
	vec3_t		viewangles;
	vec3_t		vforward;
	vec3_t		vright;
	vec3_t		vup;

	vec3_t		cullorigin;
	vec3_t		cull_vforward;
	vec3_t		cull_vright;
	vec3_t		cull_vup;

	float		farClip;

	qboolean		fogCustom;
	qboolean		fogEnabled;
	qboolean		fogSkybox;
	vec4_t		fogColor;
	float		fogDensity;
	float		fogStart;
	float		fogEnd;
	int		cached_contents;	// in water
	int		cached_waterlevel;	// was in water

	float		skyMins[2][6];
	float		skyMaxs[2][6];

	matrix4x4		objectMatrix;		// currententity matrix
	matrix4x4		worldviewMatrix;		// modelview for world
	matrix4x4		modelviewMatrix;		// worldviewMatrix * objectMatrix

	matrix4x4		projectionMatrix;
	matrix4x4		worldviewProjectionMatrix;	// worldviewMatrix * projectionMatrix
	byte		visbytes[(MAX_MAP_LEAFS+7)/8];// actual PVS for current frame

	float		viewplanedist;
	mplane_t		clipPlane;
} ref_instance_t;

typedef struct
{
	cl_entity_t	*solid_entities[MAX_VISIBLE_PACKET];	// opaque moving or alpha brushes
	cl_entity_t	*trans_entities[MAX_VISIBLE_PACKET];	// translucent brushes
	cl_entity_t	*beam_entities[MAX_VISIBLE_PACKET];
	uint		num_solid_entities;
	uint		num_trans_entities;
	uint		num_beam_entities;
} draw_list_t;

typedef struct
{
	int		defaultTexture;   	// use for bad textures
	int		particleTexture;
	int		whiteTexture;
	int		grayTexture;
	int		blackTexture;
	int		solidskyTexture;	// quake1 solid-sky layer
	int		alphaskyTexture;	// quake1 alpha-sky layer
	int		lightmapTextures[MAX_LIGHTMAPS];
	int		dlightTexture;	// custom dlight texture
	int		skyboxTextures[6];	// skybox sides
	int		cinTexture;      	// cinematic texture

	int		skytexturenum;	// this not a gl_texturenum!
	int		skyboxbasenum;	// start with 5800

	// entity lists
	draw_list_t	draw_stack[MAX_DRAW_STACK];
	int		draw_stack_pos;
	draw_list_t	*draw_list;

	msurface_t	*draw_decals[MAX_DECAL_SURFS];
	int		num_draw_decals;
         
	// OpenGL matrix states
	qboolean		modelviewIdentity;

	int		visframecount;	// PVS frame
	int		dlightframecount;	// dynamic light frame
	int		realframecount;	// not including viewpasses
	int		framecount;

	qboolean		ignore_lightgamma;
	qboolean		fCustomRendering;
	qboolean		fResetVis;
	qboolean		fFlipViewModel;

	// tree visualization stuff
	int		recursion_level;
	int		max_recursion;

	byte		visbytes[(MAX_MAP_LEAFS+7)/8];	// member custom PVS
	int		lightstylevalue[MAX_LIGHTSTYLES];	// value 0 - 65536
	int		block_size;			// lightmap blocksize

	double		frametime;	// special frametime for multipass rendering (will set to 0 on a nextview)
	float		blend;		// global blend value

	// cull info
	vec3_t		modelorg;		// relative to viewpoint

	qboolean fCustomSkybox;
} gl_globals_t;

typedef struct
{
	uint		c_world_polys;
	uint		c_studio_polys;
	uint		c_sprite_polys;
	uint		c_alias_polys;
	uint		c_world_leafs;

	uint		c_view_beams_count;
	uint		c_active_tents_count;
	uint		c_alias_models_drawn;
	uint		c_studio_models_drawn;
	uint		c_sprite_models_drawn;
	uint		c_particle_count;

	uint		c_client_ents;	// entities that moved to client
	double		t_world_node;
	double		t_world_draw;
} ref_speeds_t;

extern ref_speeds_t		r_stats;
extern ref_instance_t	RI;
extern gl_globals_t	tr;

extern float		gldepthmin, gldepthmax;
#define r_numEntities	(tr.draw_list->num_solid_entities + tr.draw_list->num_trans_entities)
#define r_numStatics	(r_stats.c_client_ents)

typedef struct image_s
{
	char		name[256];	// game path, including extension (can be store image programs)
	word		srcWidth;		// keep unscaled sizes
	word		srcHeight;
	word		width;		// upload width\height
	word		height;
	word		depth;		// texture depth or count of layers for 2D_ARRAY
	byte		numMips;		// mipmap count


	texFlags_t	flags;

	rgba_t		fogParams;	// some water textures
					// contain info about underwater fog
	rgbdata_t		*original;	// keep original image

	// debug info
	size_t		size;		// upload size for debug targets

	// detail textures stuff
	float		xscale;
	float		yscale;

	imagetype_t     type;
	qboolean transparent;
	pixel_t		*pixels[4];				// mip levels

	int		servercount;
	uint		hashValue;
	struct gltexture_s	*nextHash;
} image_t;

#if 0

//
// gl_backend.c
//
void GL_BackendStartFrame( void );
void GL_BackendEndFrame( void );
void GL_CleanUpTextureUnits( int last );
void GL_Bind( int tmu, unsigned int texnum );
void GL_LoadTexMatrix( const matrix4x4 m );
void GL_LoadTexMatrixExt( const float *glmatrix );
void GL_LoadMatrix( const matrix4x4 source );
void GL_TexGen( unsigned int coord, unsigned int mode );
void GL_SelectTexture( int texture );
void GL_CleanupAllTextureUnits( void );
void GL_LoadIdentityTexMatrix( void );
void GL_DisableAllTexGens( void );
void GL_SetRenderMode( int mode );
void GL_TextureTarget( uint target );
void GL_Cull( unsigned int cull );
void R_ShowTextures( void );
void R_ShowTree( void );
void SCR_TimeRefresh_f( void );

//
// gl_beams.c
//
void CL_DrawBeams( int fTrans, BEAM *active_beams );
qboolean R_BeamCull( const vec3_t start, const vec3_t end, qboolean pvsOnly );

//
// gl_cull.c
//
int R_CullModel( cl_entity_t *e, const vec3_t absmin, const vec3_t absmax );
qboolean R_CullBox( const vec3_t mins, const vec3_t maxs );
qboolean R_CullSphere( const vec3_t centre, const float radius );
//int R_CullSurface( msurface_t *surf, gl_frustum_t *frustum, uint clipflags );

//
// gl_decals.c
//
void DrawSurfaceDecals( msurface_t *fa, qboolean single, qboolean reverse );
float *R_DecalSetupVerts( decal_t *pDecal, msurface_t *surf, int texture, int *outCount );
void DrawSingleDecal( decal_t *pDecal, msurface_t *fa );
void R_EntityRemoveDecals( model_t *mod );
void DrawDecalsBatch( void );
void R_ClearDecals( void );



//
// gl_drawhulls.c
//
void R_DrawWorldHull( void );
void R_DrawModelHull( void );
#endif

void GL_Bind( int tmu, unsigned int texnum );

//
// gl_draw.c
//
void R_Set2DMode( qboolean enable );
void R_DrawTileClear( int texnum, int x, int y, int w, int h );
void R_UploadStretchRaw( int texture, int cols, int rows, int width, int height, const byte *data );//

// gl_image.c
//
void R_SetTextureParameters( void );
image_t *R_GetTexture( unsigned int texnum );
#define GL_LoadTextureInternal( name, pic, flags ) GL_LoadTextureFromBuffer( name, pic, flags, false )
#define GL_UpdateTextureInternal( name, pic, flags ) GL_LoadTextureFromBuffer( name, pic, flags, true )
int GL_LoadTexture( const char *name, const byte *buf, size_t size, int flags );
int GL_LoadTextureArray( const char **names, int flags );
int GL_LoadTextureFromBuffer( const char *name, rgbdata_t *pic, texFlags_t flags, qboolean update );
byte *GL_ResampleTexture( const byte *source, int in_w, int in_h, int out_w, int out_h, qboolean isNormalMap );
int GL_CreateTexture( const char *name, int width, int height, const void *buffer, texFlags_t flags );
int GL_CreateTextureArray( const char *name, int width, int height, int depth, const void *buffer, texFlags_t flags );
void GL_ProcessTexture( int texnum, float gamma, int topColor, int bottomColor );
void GL_UpdateTexSize( int texnum, int width, int height, int depth );
void GL_ApplyTextureParams( image_t *tex );
int GL_FindTexture( const char *name );
void GL_FreeTexture( unsigned int texnum );
const char *GL_Target( unsigned int target );
void R_InitDlightTexture( void );
void R_TextureList_f( void );
void R_InitImages( void );
void R_ShutdownImages( void );
#if 0
//
// gl_rlight.c
//
void CL_RunLightStyles( void );
void R_PushDlights( void );
void R_AnimateLight( void );
void R_GetLightSpot( vec3_t lightspot );
void R_MarkLights( dlight_t *light, int bit, mnode_t *node );
colorVec R_LightVec( const vec3_t start, const vec3_t end, vec3_t lightspot, vec3_t lightvec );
int R_CountSurfaceDlights( msurface_t *surf );
colorVec R_LightPoint( const vec3_t p0 );
int R_CountDlights( void );

//
// gl_rmain.c
//
void R_ClearScene( void );
void R_LoadIdentity( void );
void R_RenderScene( void );
void R_DrawCubemapView( const vec3_t origin, const vec3_t angles, int size );
void R_SetupRefParams( const struct ref_viewpass_s *rvp );
void R_TranslateForEntity( cl_entity_t *e );
void R_RotateForEntity( cl_entity_t *e );
void R_SetupGL( qboolean set_gl_state );
void R_AllowFog( qboolean allowed );
void R_SetupFrustum( void );
void R_FindViewLeaf( void );
void R_PushScene( void );
void R_PopScene( void );
void R_DrawFog( void );

//
// gl_rmath.c
//
void Matrix4x4_ToArrayFloatGL( const matrix4x4 in, float out[16] );
void Matrix4x4_FromArrayFloatGL( matrix4x4 out, const float in[16] );
void Matrix4x4_Concat( matrix4x4 out, const matrix4x4 in1, const matrix4x4 in2 );
void Matrix4x4_ConcatTranslate( matrix4x4 out, float x, float y, float z );
void Matrix4x4_ConcatRotate( matrix4x4 out, float angle, float x, float y, float z );
void Matrix4x4_ConcatScale( matrix4x4 out, float x );
void Matrix4x4_ConcatScale3( matrix4x4 out, float x, float y, float z );
void Matrix4x4_CreateTranslate( matrix4x4 out, float x, float y, float z );
void Matrix4x4_CreateRotate( matrix4x4 out, float angle, float x, float y, float z );
void Matrix4x4_CreateScale( matrix4x4 out, float x );
void Matrix4x4_CreateScale3( matrix4x4 out, float x, float y, float z );
void Matrix4x4_CreateProjection(matrix4x4 out, float xMax, float xMin, float yMax, float yMin, float zNear, float zFar);
void Matrix4x4_CreateOrtho(matrix4x4 m, float xLeft, float xRight, float yBottom, float yTop, float zNear, float zFar);
void Matrix4x4_CreateModelview( matrix4x4 out );

//
// gl_rmisc.c
//
void R_ClearStaticEntities( void );

//
// gl_rsurf.c
//
void R_MarkLeaves( void );
void R_DrawWorld( void );
void R_DrawWaterSurfaces( void );
void R_DrawBrushModel( cl_entity_t *e );
void GL_SubdivideSurface( msurface_t *fa );
void GL_BuildPolygonFromSurface( model_t *mod, msurface_t *fa );
void DrawGLPoly( glpoly_t *p, float xScale, float yScale );
texture_t *R_TextureAnimation( msurface_t *s );
void GL_SetupFogColorForSurfaces( void );
void R_DrawAlphaTextureChains( void );
void GL_RebuildLightmaps( void );
void GL_InitRandomTable( void );
void GL_BuildLightmaps( void );
void GL_ResetFogColor( void );
void R_GenerateVBO();
void R_ClearVBO();
void R_AddDecalVBO( decal_t *pdecal, msurface_t *surf );

//
// gl_rpart.c
//
void CL_DrawParticlesExternal( const ref_viewpass_t *rvp, qboolean trans_pass, float frametime );
void CL_DrawParticles( double frametime, particle_t *cl_active_particles, float partsize );
void CL_DrawTracers( double frametime, particle_t *cl_active_tracers );


//
// gl_sprite.c
//
void R_SpriteInit( void );
void Mod_LoadSpriteModel( model_t *mod, const void *buffer, qboolean *loaded, uint texFlags );
mspriteframe_t *R_GetSpriteFrame( const model_t *pModel, int frame, float yaw );
void R_DrawSpriteModel( cl_entity_t *e );

//
// gl_studio.c
//
void R_StudioInit( void );
void Mod_LoadStudioModel( model_t *mod, const void *buffer, qboolean *loaded );
void R_StudioLerpMovement( cl_entity_t *e, double time, vec3_t origin, vec3_t angles );
float CL_GetSequenceDuration( cl_entity_t *ent, int sequence );
struct mstudiotex_s *R_StudioGetTexture( cl_entity_t *e );
float CL_GetStudioEstimatedFrame( cl_entity_t *ent );
int R_GetEntityRenderMode( cl_entity_t *ent );
void R_DrawStudioModel( cl_entity_t *e );
player_info_t *pfnPlayerInfo( int index );
void R_GatherPlayerLight( void );
float R_StudioEstimateFrame( cl_entity_t *e, mstudioseqdesc_t *pseqdesc );
void R_StudioLerpMovement( cl_entity_t *e, double time, vec3_t origin, vec3_t angles );
void R_StudioResetPlayerModels( void );
void CL_InitStudioAPI( void );
void Mod_StudioLoadTextures( model_t *mod, void *data );
void Mod_StudioUnloadTextures( void *data );

//
// gl_alias.c
//
void Mod_LoadAliasModel( model_t *mod, const void *buffer, qboolean *loaded );
void R_DrawAliasModel( cl_entity_t *e );
void R_AliasInit( void );

//
// gl_warp.c
//

void R_InitSkyClouds( mip_t *mt, struct texture_s *tx, qboolean custom_palette );
void R_AddSkyBoxSurface( msurface_t *fa );
void R_ClearSkyBox( void );
void R_DrawSkyBox( void );
void R_DrawClouds( void );
void EmitWaterPolys( msurface_t *warp, qboolean reverse );
#endif

void R_InitSkyClouds( struct mip_s *mt, struct texture_s *tx, qboolean custom_palette );
//
// gl_vgui.c
//
void VGUI_DrawInit( void );
void VGUI_DrawShutdown( void );
void VGUI_SetupDrawingText( int *pColor );
void VGUI_SetupDrawingRect( int *pColor );
void VGUI_SetupDrawingImage( int *pColor );
void VGUI_BindTexture( int id );
void VGUI_EnableTexture( qboolean enable );
void VGUI_CreateTexture( int id, int width, int height );
void VGUI_UploadTexture( int id, const char *buffer, int width, int height );
void VGUI_UploadTextureBlock( int id, int drawX, int drawY, const byte *rgba, int blockWidth, int blockHeight );
void VGUI_DrawQuad( const vpoint_t *ul, const vpoint_t *lr );
void VGUI_GetTextureSizes( int *width, int *height );
int VGUI_GenerateTexture( void );

//#include "vid_common.h"

//
// renderer exports
//
qboolean R_Init( void );
void R_Shutdown( void );
void GL_SetupAttributes( int safegl );
void GL_OnContextCreated( void );
void GL_InitExtensions( void );
void GL_ClearExtensions( void );
void VID_CheckChanges( void );
int GL_LoadTexture( const char *name, const byte *buf, size_t size, int flags );
void GL_FreeImage( const char *name );
qboolean VID_ScreenShot( const char *filename, int shot_type );
qboolean VID_CubemapShot( const char *base, uint size, const float *vieworg, qboolean skyshot );
void R_BeginFrame( qboolean clearScene );
int R_RenderFrame( const struct ref_viewpass_s *vp );
void R_EndFrame( void );
void R_ClearScene( void );
void R_GetTextureParms( int *w, int *h, int texnum );
void R_GetSpriteParms( int *frameWidth, int *frameHeight, int *numFrames, int curFrame, const struct model_s *pSprite );
void R_DrawStretchRaw( float x, float y, float w, float h, int cols, int rows, const byte *data, qboolean dirty );
void R_DrawStretchPic( float x, float y, float w, float h, float s1, float t1, float s2, float t2, int texnum );
qboolean R_SpeedsMessage( char *out, size_t size );
void R_SetupSky( const char *skyboxname );
qboolean R_CullBox( const vec3_t mins, const vec3_t maxs );
int R_WorldToScreen( const vec3_t point, vec3_t screen );
void R_ScreenToWorld( const vec3_t screen, vec3_t point );
qboolean R_AddEntity( struct cl_entity_s *pRefEntity, int entityType );
void Mod_LoadMapSprite( struct model_s *mod, const void *buffer, size_t size, qboolean *loaded );
void Mod_SpriteUnloadTextures( void *data );
void Mod_UnloadAliasModel( struct model_s *mod );
void Mod_AliasUnloadTextures( void *data );
void GL_SetRenderMode( int mode );
void R_RunViewmodelEvents( void );
void R_DrawViewModel( void );
int R_GetSpriteTexture( const struct model_s *m_pSpriteModel, int frame );
void R_DecalShoot( int textureIndex, int entityIndex, int modelIndex, vec3_t pos, int flags, float scale );
void R_RemoveEfrags( struct cl_entity_s *ent );
void R_AddEfrags( struct cl_entity_s *ent );
void R_DecalRemoveAll( int texture );
int R_CreateDecalList( decallist_t *pList );
void R_ClearAllDecals( void );
byte *Mod_GetCurrentVis( void );
void Mod_SetOrthoBounds( const float *mins, const float *maxs );
void R_NewMap( void );
void CL_AddCustomBeam( cl_entity_t *pEnvBeam );
#if 0
//
// gl_opengl.c
//
#define GL_CheckForErrors() GL_CheckForErrors_( __FILE__, __LINE__ )
void GL_CheckForErrors_( const char *filename, const int fileline );
const char *GL_ErrorString( int err );
qboolean GL_Support( int r_ext );
int GL_MaxTextureUnits( void );
void GL_CheckExtension( const char *name, const dllfunc_t *funcs, const char *cvarname, int r_ext );
void GL_SetExtension( int r_ext, int enable );
#endif
//
// gl_triapi.c
//
void TriRenderMode( int mode );
void TriBegin( int mode );
void TriEnd( void );
void TriTexCoord2f( float u, float v );
void TriVertex3fv( const float *v );
void TriVertex3f( float x, float y, float z );
void _TriColor4f( float r, float g, float b, float a );
void TriColor4ub( byte r, byte g, byte b, byte a );
int TriWorldToScreen( float *world, float *screen );
int TriSpriteTexture( model_t *pSpriteModel, int frame );
void TriFog( float flFogColor[3], float flStart, float flEnd, int bOn );
void TriGetMatrix( const int pname, float *matrix );
void TriFogParams( float flDensity, int iFogSkybox );
void TriCullFace( TRICULLSTYLE mode );


extern ref_api_t      gEngfuncs;
extern ref_globals_t *gpGlobals;
extern cvar_t	*gl_emboss_scale;
#if 0
//
// renderer cvars
//
extern cvar_t	*gl_texture_anisotropy;
extern cvar_t	*gl_extensions;
extern cvar_t	*gl_check_errors;
extern cvar_t	*gl_texture_lodbias;
extern cvar_t	*gl_texture_nearest;
extern cvar_t	*gl_lightmap_nearest;
extern cvar_t	*gl_keeptjunctions;

extern cvar_t	*gl_round_down;
extern cvar_t	*gl_detailscale;
extern cvar_t	*gl_wireframe;
extern cvar_t	*gl_polyoffset;
extern cvar_t	*gl_finish;
extern cvar_t	*gl_nosort;
extern cvar_t	*gl_clear;
extern cvar_t	*gl_test;		// cvar to testify new effects
extern cvar_t	*gl_msaa;
extern cvar_t *gl_stencilbits;

extern cvar_t	*r_speeds;
extern cvar_t	*r_fullbright;
extern cvar_t	*r_norefresh;
extern cvar_t	*r_showtree;	// build graph of visible hull
extern cvar_t	*r_lighting_extended;
extern cvar_t	*r_lighting_modulate;
extern cvar_t	*r_lighting_ambient;
extern cvar_t	*r_studio_lambert;
extern cvar_t	*r_detailtextures;
extern cvar_t	*r_drawentities;
extern cvar_t	*r_decals;
extern cvar_t	*r_novis;
extern cvar_t	*r_nocull;
extern cvar_t	*r_lockpvs;
extern cvar_t	*r_lockfrustum;
extern cvar_t	*r_traceglow;
extern cvar_t	*r_dynamic;
extern cvar_t	*r_lightmap;
extern cvar_t *r_vbo;
extern cvar_t *r_vbo_dlightmode;

extern cvar_t	*vid_brightness;
extern cvar_t	*vid_gamma;

//
// engine shared convars
//
extern cvar_t *gl_showtextures;
extern cvar_t	*tracerred;
extern cvar_t	*tracergreen;
extern cvar_t	*tracerblue;
extern cvar_t	*traceralpha;
extern cvar_t	*cl_lightstyle_lerping;
extern cvar_t	*r_showhull;
#endif
//
// engine callbacks
//
#include "crtlib.h"

#define Mem_Malloc( pool, size ) gEngfuncs._Mem_Alloc( pool, size, false, __FILE__, __LINE__ )
#define Mem_Calloc( pool, size ) gEngfuncs._Mem_Alloc( pool, size, true, __FILE__, __LINE__ )
#define Mem_Realloc( pool, ptr, size ) gEngfuncs._Mem_Realloc( pool, ptr, size, true, __FILE__, __LINE__ )
#define Mem_Free( mem ) gEngfuncs._Mem_Free( mem, __FILE__, __LINE__ )
#define Mem_AllocPool( name ) gEngfuncs._Mem_AllocPool( name, __FILE__, __LINE__ )
#define Mem_FreePool( pool ) gEngfuncs._Mem_FreePool( pool, __FILE__, __LINE__ )
#define Mem_EmptyPool( pool ) gEngfuncs._Mem_EmptyPool( pool, __FILE__, __LINE__ )

#endif // GL_LOCAL_H