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xash3d-fwgs/r_local.h

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/*
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;
typedef int fixed8_t;
typedef int fixed16_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() ( ENGINE_GET_PARM( PARM_VIEWENT_INDEX ) == ENGINE_GET_PARM( PARM_PLAYER_INDEX ) )
#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)
#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[32*8192]; // 8192 * light levels
//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];
unsigned int screen32[256*256];
#endif
byte addmap[256*256];
byte modmap[256*256];
pixel_t alphamap[3*1024*256];
pixel_t color;
qboolean is2d;
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 base_vup;
vec3_t base_vpn;
vec3_t base_vright;
vec3_t cullorigin;
vec3_t cull_vforward;
vec3_t cull_vright;
vec3_t cull_vup;
int cached_contents; // in water
int cached_waterlevel; // was in water
float farClip;
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;
// q2 oldrefdef
vrect_t vrect; // subwindow in video for refresh
// FIXME: not need vrect next field here?
vrect_t aliasvrect; // scaled Alias version
int vrectright, vrectbottom; // right & bottom screen coords
int aliasvrectright, aliasvrectbottom; // scaled Alias versions
float vrectrightedge; // rightmost right edge we care about,
// for use in edge list
float fvrectx, fvrecty; // for floating-point compares
float fvrectx_adj, fvrecty_adj; // left and top edges, for clamping
int vrect_x_adj_shift20; // (vrect.x + 0.5 - epsilon) << 20
int vrectright_adj_shift20; // (vrectright + 0.5 - epsilon) << 20
float fvrectright_adj, fvrectbottom_adj;
// right and bottom edges, for clamping
float fvrectright; // rightmost edge, for Alias clamping
float fvrectbottom; // bottommost edge, for Alias clampin
} ref_instance_t;
typedef struct
{
cl_entity_t *edge_entities[MAX_VISIBLE_PACKET]; // brush edge drawing
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_edge_entities;
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
// 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;
char mapname[MAX_STRING];
} 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;
#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;
pixel_t *pixels[4]; // mip levels
pixel_t *alpha_pixels; // 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 );
#endif
//
// gl_beams.c
//
void CL_DrawBeams( int fTrans, BEAM *active_beams );
qboolean R_BeamCull( const vec3_t start, const vec3_t end, qboolean pvsOnly );
#if 0
//
// 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 );
#endif
//
// 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 );
#if 0
//
// 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 1
//
// 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 );
#endif
//
// 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 );
#if 0
//
// 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 );
#endif
//
// 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 );
#if 0
//
// 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 GAME_EXPORT 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 );
void _TriColor4ub( byte r, byte g, byte b, byte a );
int TriWorldToScreen( const 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 );
void TriBrightness( float brightness );
#define ENGINE_GET_PARM_ (*gEngfuncs.EngineGetParm)
#define ENGINE_GET_PARM( parm ) ENGINE_GET_PARM_( (parm), 0 )
extern ref_api_t gEngfuncs;
extern ref_globals_t *gpGlobals;
extern cvar_t *gl_emboss_scale;
extern cvar_t *r_drawentities;
extern cvar_t *vid_brightness;
extern cvar_t *vid_gamma;
extern cvar_t *r_norefresh;
extern cvar_t *r_dynamic;
extern cvar_t *r_lightmap;
// todo: gl_cull.c
#define R_CullModel(...) 0
#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_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
// softrender defs
#define CACHE_SIZE 32
/*
====================================================
CONSTANTS
====================================================
*/
#define VID_CBITS 6
#define VID_GRADES (1 << VID_CBITS)
// r_shared.h: general refresh-related stuff shared between the refresh and the
// driver
#define MAXVERTS 64 // max points in a surface polygon
#define MAXWORKINGVERTS (MAXVERTS+4) // max points in an intermediate
// polygon (while processing)
// !!! if this is changed, it must be changed in d_ifacea.h too !!!
#define MAXHEIGHT 1200
#define MAXWIDTH 1920
#define INFINITE_DISTANCE 0x10000 // distance that's always guaranteed to
// be farther away than anything in
// the scene
// d_iface.h: interface header file for rasterization driver modules
#define WARP_WIDTH 320
#define WARP_HEIGHT 240
#define MAX_LBM_HEIGHT 480
#define PARTICLE_Z_CLIP 8.0
// !!! must be kept the same as in quakeasm.h !!!
#define TRANSPARENT_COLOR 0x0349 //0xFF
// !!! if this is changed, it must be changed in d_ifacea.h too !!!
#define TURB_TEX_SIZE 64 // base turbulent texture size
// !!! if this is changed, it must be changed in d_ifacea.h too !!!
#define CYCLE 128 // turbulent cycle size
#define SCANBUFFERPAD 0x1000
#define DS_SPAN_LIST_END -128
#define NUMSTACKEDGES 4000
#define MINEDGES NUMSTACKEDGES
#define NUMSTACKSURFACES 2000
#define MINSURFACES NUMSTACKSURFACES
#define MAXSPANS 6000
// flags in finalvert_t.flags
#define ALIAS_LEFT_CLIP 0x0001
#define ALIAS_TOP_CLIP 0x0002
#define ALIAS_RIGHT_CLIP 0x0004
#define ALIAS_BOTTOM_CLIP 0x0008
#define ALIAS_Z_CLIP 0x0010
#define ALIAS_XY_CLIP_MASK 0x000F
#define SURFCACHE_SIZE_AT_320X240 1024*768
#define BMODEL_FULLY_CLIPPED 0x10 // value returned by R_BmodelCheckBBox ()
// if bbox is trivially rejected
#define XCENTERING (1.0 / 2.0)
#define YCENTERING (1.0 / 2.0)
#define CLIP_EPSILON 0.001
// !!! if this is changed, it must be changed in asm_draw.h too !!!
#define NEAR_CLIP 0.01
//#define MAXALIASVERTS 2000 // TODO: tune this
#define ALIAS_Z_CLIP_PLANE 4
// turbulence stuff
#define AMP 8*0x10000
#define AMP2 3
#define SPEED 20
/*
====================================================
TYPES
====================================================
*/
typedef struct
{
float u, v;
float s, t;
float zi;
} emitpoint_t;
/*
** if you change this structure be sure to change the #defines
** listed after it!
*/
#define SMALL_FINALVERT 0
#if SMALL_FINALVERT
typedef struct finalvert_s {
short u, v, s, t;
int l;
int zi;
int flags;
float xyz[3]; // eye space
} finalvert_t;
#define FINALVERT_V0 0
#define FINALVERT_V1 2
#define FINALVERT_V2 4
#define FINALVERT_V3 6
#define FINALVERT_V4 8
#define FINALVERT_V5 12
#define FINALVERT_FLAGS 16
#define FINALVERT_X 20
#define FINALVERT_Y 24
#define FINALVERT_Z 28
#define FINALVERT_SIZE 32
#else
typedef struct finalvert_s {
int u, v, s, t;
int l;
int zi;
int flags;
float xyz[3]; // eye space
} finalvert_t;
#define FINALVERT_V0 0
#define FINALVERT_V1 4
#define FINALVERT_V2 8
#define FINALVERT_V3 12
#define FINALVERT_V4 16
#define FINALVERT_V5 20
#define FINALVERT_FLAGS 24
#define FINALVERT_X 28
#define FINALVERT_Y 32
#define FINALVERT_Z 36
#define FINALVERT_SIZE 40
#endif
typedef struct
{
short s;
short t;
} dstvert_t;
typedef struct
{
short index_xyz[3];
short index_st[3];
} dtriangle_t;
typedef struct
{
byte v[3]; // scaled byte to fit in frame mins/maxs
byte lightnormalindex;
} dtrivertx_t;
#define DTRIVERTX_V0 0
#define DTRIVERTX_V1 1
#define DTRIVERTX_V2 2
#define DTRIVERTX_LNI 3
#define DTRIVERTX_SIZE 4
typedef struct
{
void *pskin;
int pskindesc;
int skinwidth;
int skinheight;
dtriangle_t *ptriangles;
finalvert_t *pfinalverts;
int numtriangles;
int drawtype;
int seamfixupX16;
qboolean do_vis_thresh;
int vis_thresh;
} affinetridesc_t;
typedef struct
{
byte *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
image_t *image;
int surfmip; // mipmapped ratio of surface texels / world pixels
int surfwidth; // in mipmapped texels
int surfheight; // in mipmapped texels
} drawsurf_t;
#if 0
typedef struct {
int ambientlight;
int shadelight;
float *plightvec;
} alight_t;
#endif
// clipped bmodel edges
typedef struct bedge_s
{
mvertex_t *v[2];
struct bedge_s *pnext;
} bedge_t;
// !!! if this is changed, it must be changed in asm_draw.h too !!!
typedef struct clipplane_s
{
vec3_t normal;
float dist;
struct clipplane_s *next;
byte leftedge;
byte rightedge;
byte reserved[2];
} clipplane_t;
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;
image_t *image;
byte data[4]; // width*height elements
} surfcache_t;
// !!! if this is changed, it must be changed in asm_draw.h too !!!
typedef struct espan_s
{
int u, v, count;
struct espan_s *pnext;
} espan_t;
// FIXME: compress, make a union if that will help
// insubmodel is only 1, flags is fewer than 32, spanstate could be a byte
typedef struct surf_s
{
struct surf_s *next; // active surface stack in r_edge.c
struct surf_s *prev; // used in r_edge.c for active surf stack
struct espan_s *spans; // pointer to linked list of spans to draw
int key; // sorting key (BSP order)
int last_u; // set during tracing
int spanstate; // 0 = not in span
// 1 = in span
// -1 = in inverted span (end before
// start)
int flags; // currentface flags
msurface_t *msurf;
cl_entity_t *entity;
float nearzi; // nearest 1/z on surface, for mipmapping
qboolean insubmodel;
float d_ziorigin, d_zistepu, d_zistepv;
int pad[2]; // to 64 bytes
} surf_t;
// !!! if this is changed, it must be changed in asm_draw.h too !!!
typedef struct edge_s
{
fixed16_t u;
fixed16_t u_step;
struct edge_s *prev, *next;
unsigned short surfs[2];
struct edge_s *nextremove;
float nearzi;
medge_t *owner;
} edge_t;
/*
====================================================
VARS
====================================================
*/
// started
extern float r_aliasuvscale; // scale-up factor for screen u and v
// on Alias vertices passed to driver
extern affinetridesc_t r_affinetridesc;
void D_DrawSurfaces (void);
void R_DrawParticle( void );
void D_ViewChanged (void);
void D_WarpScreen (void);
void R_PolysetUpdateTables (void);
//=======================================================================//
// callbacks to Quake
extern drawsurf_t r_drawsurf;
void R_DrawSurface (void);
//extern int c_surf;
extern byte r_warpbuffer[WARP_WIDTH * WARP_HEIGHT];
extern float scale_for_mip;
extern qboolean d_roverwrapped;
extern surfcache_t *sc_rover;
extern surfcache_t *d_initial_rover;
extern float d_sdivzstepu, d_tdivzstepu, d_zistepu;
extern float d_sdivzstepv, d_tdivzstepv, d_zistepv;
extern float d_sdivzorigin, d_tdivzorigin, d_ziorigin;
extern fixed16_t sadjust, tadjust;
extern fixed16_t bbextents, bbextentt;
void D_DrawSpans16 (espan_t *pspans);
void D_DrawZSpans (espan_t *pspans);
void Turbulent8 (espan_t *pspan);
void NonTurbulent8 (espan_t *pspan); //PGM
surfcache_t *D_CacheSurface (msurface_t *surface, int miplevel);
extern pixel_t *d_viewbuffer;
extern short *d_pzbuffer;
extern unsigned int d_zrowbytes, d_zwidth;
extern short *zspantable[MAXHEIGHT];
extern int d_scantable[MAXHEIGHT];
extern int d_minmip;
extern float d_scalemip[3];
//===================================================================
extern int cachewidth;
extern pixel_t *cacheblock;
extern int r_screenwidth;
extern int sintable[1280];
extern int intsintable[1280];
extern int blanktable[1280]; // PGM
extern surf_t *surfaces, *surface_p, *surf_max;
// surfaces are generated in back to front order by the bsp, so if a surf
// pointer is greater than another one, it should be drawn in front
// surfaces[1] is the background, and is used as the active surface stack.
// surfaces[0] is a dummy, because index 0 is used to indicate no surface
// attached to an edge_t
//===================================================================
//extern vec3_t sxformaxis[4]; // s axis transformed into viewspace
//extern vec3_t txformaxis[4]; // t axis transformed into viewspac
extern float xcenter, ycenter;
extern float xscale, yscale;
extern float xscaleinv, yscaleinv;
//extern float xscaleshrink, yscaleshrink;
extern edge_t *auxedges;
extern int r_numallocatededges;
extern edge_t *r_edges, *edge_p, *edge_max;
extern edge_t *newedges[MAXHEIGHT];
extern edge_t *removeedges[MAXHEIGHT];
extern int r_viewcluster, r_oldviewcluster;
extern int r_clipflags;
//extern qboolean r_fov_greater_than_90;
extern cvar_t *sw_aliasstats;
extern cvar_t *sw_clearcolor;
extern cvar_t *sw_drawflat;
extern cvar_t *sw_draworder;
extern cvar_t *sw_maxedges;
extern cvar_t *sw_maxsurfs;
extern cvar_t *sw_mipcap;
extern cvar_t *sw_mipscale;
extern cvar_t *sw_reportsurfout;
extern cvar_t *sw_reportedgeout;
extern cvar_t *sw_stipplealpha;
extern cvar_t *sw_surfcacheoverride;
extern cvar_t *sw_waterwarp;
extern cvar_t *sw_texfilt;
extern cvar_t *r_decals;
extern cvar_t *r_traceglow;
extern cvar_t *sw_notransbrushes;
extern cvar_t *sw_noalphabrushes;
extern cvar_t *tracerred;
extern cvar_t *tracergreen;
extern cvar_t *tracerblue;
extern cvar_t *traceralpha;
extern struct qfrustum_s {
mplane_t screenedge[4];
clipplane_t view_clipplanes[4];
int frustum_indexes[4*6];
int *pfrustum_indexes[4];
} qfrustum;
extern cvar_t *r_fullbright;
#define CACHESPOT(surf) ((surfcache_t**)surf->info->reserved)
extern int r_currentkey;
extern int r_currentbkey;
extern qboolean insubmodel;
extern vec3_t r_entorigin;
extern int r_leafkeys[MAX_MAP_LEAFS];
#define LEAF_KEY(pleaf) r_leafkeys[(pleaf - WORLDMODEL->leafs)]
extern mvertex_t *r_pcurrentvertbase;
//extern int r_maxvalidedgeoffset;
typedef struct
{
finalvert_t *a, *b, *c;
} aliastriangleparms_t;
extern aliastriangleparms_t aliastriangleparms;
extern int r_aliasblendcolor;
extern float aliasxscale, aliasyscale, aliasxcenter, aliasycenter;
extern float s_ziscale;
void R_DrawTriangle( void );
//void R_DrawTriangle (finalvert_t *index0, finalvert_t *index1, finalvert_t *index2);
void R_AliasClipTriangle (finalvert_t *index0, finalvert_t *index1, finalvert_t *index2);
//
// r_bsp.c
//
void R_RotateBmodel (void);
void R_DrawSolidClippedSubmodelPolygons (model_t *pmodel, mnode_t *topnode);
void R_DrawSubmodelPolygons (model_t *pmodel, int clipflags, mnode_t *topnode);
void R_DrawBrushModel(cl_entity_t *pent);
//
// r_blitscreen.c
//
void R_InitCaches (void);
void R_BlitScreen();
void R_InitBlit();
//
// r_edge.c
//
void R_SurfacePatch (void);
void R_BeginEdgeFrame (void);
void R_RenderWorld (void);
void R_ScanEdges (void);
//
// r_surf.c
//
void D_FlushCaches( void );
//
// r_draw.c
//
void Draw_Fill (int x, int y, int w, int h);
//
// r_misc.c
//
void R_SetupFrameQ (void);
void R_TransformFrustum (void);
void TransformVector (vec3_t in, vec3_t out);
//
// r_rast.c
//
void R_RenderBmodelFace (bedge_t *pedges, msurface_t *psurf);
void R_RenderFace (msurface_t *fa, int clipflags);
//
// r_main.c
//
void R_RenderTriangle( finalvert_t *fv1 , finalvert_t *fv2, finalvert_t *fv3 );
void R_SetupFinalVert( finalvert_t *fv, float x, float y, float z, int light, int s, int t );
void RotatedBBox (vec3_t mins, vec3_t maxs, vec3_t angles, vec3_t tmins, vec3_t tmaxs);
int R_BmodelCheckBBox (float *minmaxs);
void R_SetUpWorldTransform (void);
#define BLEND_ALPHA_LOW(alpha, src, screen) (vid.alphamap[(alpha << 18) |( (src & 0xff00) << 2) | (screen >> 6)] | screen & 0x3f)
#define BLEND_ALPHA(alpha, src, dst) alpha > 3?BLEND_ALPHA_LOW(7 - 1 - alpha, dst,src):BLEND_ALPHA_LOW(alpha-1, src, dst)
#define BLEND_ADD(src, screen) vid.addmap[ src& 0xff00|(screen>>8)] << 8 | (screen & 0xff) | ((src & 0xff) >> 0);
#define BLEND_COLOR(src, color) vid.modmap[src & 0xff00|(color>>8)] << 8 | (src & color & 0xff) | ((src & 0xff) >> 3);
//
// engine callbacks
//
#include "crtlib.h"
#if 1
#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__ )
#else
#define Mem_Malloc( pool, size ) malloc(size)
#define Mem_Calloc( pool, size ) calloc(1,size)
#define Mem_Realloc( pool, ptr, size ) realloc(ptr, size)
#define Mem_Free( mem ) free(mem)
#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
#endif // GL_LOCAL_H