2019-02-18 19:25:26 +01:00
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/*
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ref_api.h - Xash3D render dll API
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Copyright (C) 2019 a1batross
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(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. See the
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GNU General Public License for more details.
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*/
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#pragma once
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#ifndef REF_API
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#define REF_API
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#include <stdarg.h>
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#include "com_image.h"
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#include "vgui_api.h"
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#include "render_api.h"
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#include "triangleapi.h"
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#include "const.h"
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#include "cl_entity.h"
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#include "com_model.h"
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#include "studio.h"
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#include "r_efx.h"
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#define REF_API_VERSION 1
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#define TF_SKY (TF_SKYSIDE|TF_NOMIPMAP)
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#define TF_FONT (TF_NOMIPMAP|TF_CLAMP)
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#define TF_IMAGE (TF_NOMIPMAP|TF_CLAMP)
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#define TF_DECAL (TF_CLAMP)
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// screenshot types
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#define VID_SCREENSHOT 0
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#define VID_LEVELSHOT 1
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#define VID_MINISHOT 2
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#define VID_MAPSHOT 3 // special case for overview layer
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#define VID_SNAPSHOT 4 // save screenshot into root dir and no gamma correction
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// model flags (stored in model_t->flags)
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#define MODEL_CONVEYOR BIT( 0 )
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#define MODEL_HAS_ORIGIN BIT( 1 )
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#define MODEL_LIQUID BIT( 2 ) // model has only point hull
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#define MODEL_TRANSPARENT BIT( 3 ) // have transparent surfaces
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#define MODEL_COLORED_LIGHTING BIT( 4 ) // lightmaps stored as RGB
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#define MODEL_WORLD BIT( 29 ) // it's a worldmodel
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#define MODEL_CLIENT BIT( 30 ) // client sprite
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// goes into world.flags
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#define FWORLD_SKYSPHERE BIT( 0 )
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#define FWORLD_CUSTOM_SKYBOX BIT( 1 )
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#define FWORLD_WATERALPHA BIT( 2 )
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#define FWORLD_HAS_DELUXEMAP BIT( 3 )
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2019-02-27 00:23:03 +01:00
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typedef struct
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{
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msurface_t *surf;
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int cull;
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} sortedface_t;
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typedef struct ref_globals_s
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{
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qboolean developer;
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float time; // cl.time
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float oldtime; // cl.oldtime
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// viewport width and height
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int width;
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int height;
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qboolean fullScreen;
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qboolean wideScreen;
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vec3_t vieworg;
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vec3_t viewangles;
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vec3_t vforward, vright, vup;
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cl_entity_t *currententity;
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model_t *currentmodel;
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float fov_x, fov_y;
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// todo: fill this without engine help
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// move to local
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// translucent sorted array
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sortedface_t *draw_surfaces; // used for sorting translucent surfaces
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int max_surfaces; // max surfaces per submodel (for all models)
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size_t visbytes; // cluster size
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} ref_globals_t;
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enum
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{
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GL_KEEP_UNIT = -1,
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XASH_TEXTURE0 = 0,
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XASH_TEXTURE1,
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XASH_TEXTURE2,
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XASH_TEXTURE3, // g-cont. 4 units should be enough
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XASH_TEXTURE4, // mittorn. bump+detail needs 5 for single-pass
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MAX_TEXTURE_UNITS = 32 // can't access to all over units without GLSL or cg
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};
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enum // r_speeds counters
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{
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RS_ACTIVE_TENTS = 0,
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};
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enum ref_shared_texture_e
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{
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REF_DEFAULT_TEXTURE,
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REF_GRAY_TEXTURE,
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REF_WHITE_TEXTURE,
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REF_SOLIDSKY_TEXTURE,
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REF_ALPHASKY_TEXTURE,
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};
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struct con_nprint_s;
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typedef struct ref_api_s
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{
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qboolean (*CL_IsDevOverviewMode)( void );
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qboolean (*CL_IsThirdPersonMode)( void );
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qboolean (*Host_IsQuakeCompatible)( void );
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int (*GetPlayerIndex)( void ); // cl.playernum + 1
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int (*GetViewEntIndex)( void ); // cl.viewentity
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// cvar handlers
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cvar_t *(*pfnRegisterVariable)( const char *szName, const char *szValue, int flags, const char *description );
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cvar_t *(*pfnGetCvarPointer)( const char *name );
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float (*pfnGetCvarFloat)( const char *szName );
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const char *(*pfnGetCvarString)( const char *szName );
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// command handlers
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int (*Cmd_AddCommand)( const char *cmd_name, void (*function)(void), const char *description );
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int (*Cmd_RemoveCommand)( const char *cmd_name );
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int (*Cmd_Argc)( void );
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const char *(*Cmd_Argv)( int arg );
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// cbuf
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void (*Cbuf_AddText)( const char *commands );
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void (*Cbuf_InsertText)( const char *commands );
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void (*Cbuf_Execute)( void );
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// logging
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void (*Con_VPrintf)( const char *fmt, va_list args );
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void (*Con_Printf)( const char *fmt, ... );
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void (*Con_DPrintf)( const char *fmt, ... );
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void (*Con_NPrintf)( int pos, const char *fmt, ... );
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void (*Con_NXPrintf)( struct con_nprint_s *info, const char *fmt, ... );
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// entity management
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struct cl_entity_s *(*GetLocalPlayer)( void );
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struct cl_entity_s *(*GetViewModel)( void );
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struct cl_entity_s *(*GetEntityByIndex)( int idx );
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int (*pfnNumberOfEntities)( void );
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struct cl_entity_s *(*R_BeamGetEntity)( int index );
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// brushes
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int (*Mod_SampleSizeForFace)( struct msurface_s *surf );
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qboolean (*Mod_BoxVisible)( const vec3_t mins, const vec3_t maxs, const byte *visbits );
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struct world_static_s *(*GetWorld)( void ); // returns &world
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// studio models
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void (*R_StudioSlerpBones)( int numbones, vec4_t q1[], float pos1[][3], vec4_t q2[], float pos2[][3], float s );
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void (*R_StudioCalcBoneQuaternion)( int frame, float s, mstudiobone_t *pbone, mstudioanim_t *panim, float *adj, vec4_t q );
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void (*R_StudioCalcBonePosition)( int frame, float s, mstudiobone_t *pbone, mstudioanim_t *panim, vec3_t adj, vec3_t pos );
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void *(*R_StudioGetAnim)( studiohdr_t *m_pStudioHeader, model_t *m_pSubModel, mstudioseqdesc_t *pseqdesc );
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// efx
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void (*CL_DrawEFX)( float time, qboolean fTrans );
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void (*R_FreeDeadParticles)( particle_t **ppparticles );
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// model management
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model_t *(*Mod_ForName)( const char *name, qboolean crash, qboolean trackCRC );
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void *(*Mod_Extradata)( int type, model_t *model );
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struct model_s *(*pfnGetModelByIndex)( int index ); // CL_ModelHandle
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// trace
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struct pmtrace_s *(*PM_TraceLine)( float *start, float *end, int flags, int usehull, int ignore_pe );
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struct pmtrace_s *(*EV_VisTraceLine )( float *start, float *end, int flags );
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struct pmtrace_t (*CL_TraceLine)( vec3_t start, vec3_t end, int flags );
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struct movevars_s *(*pfnGetMoveVars)( void );
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// utils
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void (*CL_ExtraUpdate)( void );
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uint (*COM_HashKey)( const char *strings, uint hashSize );
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void (*Host_Error)( const char *fmt, ... );
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int (*CL_FxBlend)( cl_entity_t *e );
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float (*COM_RandomFloat)( float rmin, float rmax );
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int (*COM_RandomLong)( int rmin, int rmax );
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struct screenfade_s *(*GetScreenFade)( void );
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struct client_textmessage_s *(*pfnTextMessageGet)( const char *pName );
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void (*GetPredictedOrigin)( vec3_t v );
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// memory
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byte *(*_Mem_AllocPool)( const char *name, const char *filename, int fileline );
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void (*_Mem_FreePool)( byte **poolptr, const char *filename, int fileline );
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void *(*_Mem_Alloc)( byte *poolptr, size_t size, qboolean clear, const char *filename, int fileline );
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void *(*_Mem_Realloc)( byte *poolptr, void *memptr, size_t size, qboolean clear, const char *filename, int fileline );
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void (*_Mem_Free)( void *data, const char *filename, int fileline );
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// library management
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void *(*COM_LoadLibrary)( const char *name );
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void (*COM_FreeLibrary)( void *handle );
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void *(*COM_GetProcAddress)( void *handle, const char *name );
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// filesystem
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int (*FS_FileExists)( const char *filename, int gamedironly );
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// GL
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int (*GL_SetAttribute)( int attr, int value );
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int (*GL_GetAttribute)( int attr );
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int (*GL_CreateContext)( void ); // TODO
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void (*GL_DestroyContext)( );
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void *(*GL_GetProcAddress)( const char *name );
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// renderapi
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lightstyle_t* (*GetLightStyle)( int number );
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dlight_t* (*GetDynamicLight)( int number );
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dlight_t* (*GetEntityLight)( int number );
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byte (*LightToTexGamma)( byte color ); // software gamma support
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int (*R_FatPVS)( const float *org, float radius, byte *visbuffer, qboolean merge, qboolean fullvis );
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void *(*AVI_LoadVideo)( const char *filename, qboolean load_audio );
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int (*AVI_GetVideoInfo)( void *Avi, long *xres, long *yres, float *duration );
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long (*AVI_GetVideoFrameNumber)( void *Avi, float time );
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byte *(*AVI_GetVideoFrame)( void *Avi, long frame );
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void (*AVI_FreeVideo)( void *Avi );
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int (*AVI_IsActive)( void *Avi );
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void (*AVI_StreamSound)( void *Avi, int entnum, float fvol, float attn, float synctime );
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int (*SPR_LoadExt)( const char *szPicName, unsigned int texFlags ); // extended version of SPR_Load
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const struct ref_overview_s *( *GetOverviewParms )( void );
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const char *( *GetFileByIndex )( int fileindex );
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void *(*pfnMemAlloc)( size_t cb, const char *filename, const int fileline );
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void (*pfnMemFree)( void *mem, const char *filename, const int fileline );
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char **(*pfnGetFilesList)( const char *pattern, int *numFiles, int gamedironly );
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unsigned int (*pfnFileBufferCRC32)( const void *buffer, const int length );
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int (*COM_CompareFileTime)( const char *filename1, const char *filename2, int *iCompare );
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void* ( *pfnGetModel )( int modelindex );
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float (*pfnTime)( void ); // Sys_DoubleTime
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void (*Cvar_Set)( const char *name, const char *value );
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void (*S_FadeMusicVolume)( float fadePercent ); // fade background track (0-100 percents)
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void (*SetRandomSeed)( long lSeed ); // set custom seed for RANDOM_FLOAT\RANDOM_LONG for predictable random
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// client exports
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void (*pfnDrawNormalTriangles)( void );
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void (*pfnDrawTransparentTriangles)( void );
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int (*pfnGetRenderInterface)( int version, render_api_t *renderfuncs, render_interface_t *callback );
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int (*CL_GetRenderParm)( int parm, int arg ); // generic
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2019-02-18 19:25:26 +01:00
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} ref_api_t;
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struct mip_s;
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// render callbacks
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typedef struct ref_interface_s
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{
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// construct, destruct
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qboolean (*R_Init)( qboolean context ); // context is true if you need context management
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const char *(*R_GetInitError)( void );
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void (*R_Shutdown)( void );
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//
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void (*GL_InitExtensions)( void );
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void (*GL_ClearExtensions)( void );
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void (*R_BeginFrame)( qboolean clearScene );
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void (*R_RenderScene)( void );
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// void (*R_RenderFrame)( struct ref_viewpass_s *rvp ); part of RenderInterface
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void (*R_EndFrame)( void );
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void (*R_PushScene)( void );
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void (*R_PopScene)( void );
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// void (*R_ClearScene)( void ); part of RenderInterface
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void (*GL_BackendStartFrame)( void );
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void (*GL_BackendEndFrame)( void );
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void (*R_ClearScreen)( void ); // clears color buffer on GL
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void (*R_AllowFog)( qboolean allow );
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void (*GL_SetRenderMode)( int renderMode );
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int (*R_AddEntity)( int entityType, cl_entity_t *ent );
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void (*CL_AddCustomBeam)( cl_entity_t *pEnvBeam );
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// view info
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qboolean (*IsNormalPass)( void );
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// debug
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void (*R_ShowTextures)( void );
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void (*R_ShowTree)( void );
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void (*R_IncrementSpeedsCounter)( int counterType );
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// texture management
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const byte *(*R_GetTextureOriginalBuffer)( unsigned int idx ); // not always available
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int (*GL_LoadTextureFromBuffer)( const char *name, rgbdata_t *pic, texFlags_t flags, qboolean update );
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int (*R_GetBuiltinTexture)( enum ref_shared_texture_e type );
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void (*R_FreeSharedTexture)( enum ref_shared_texture_e type );
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void (*GL_ProcessTexture)( int texnum, float gamma, int topColor, int bottomColor );
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void (*R_SetupSky)( const char *skyname );
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// 2D
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void (*R_Set2DMode)( qboolean enable );
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void (*R_DrawStretchRaw)( float x, float y, float w, float h, int cols, int rows, const byte *data, qboolean dirty );
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void (*R_DrawStretchPic)( float x, float y, float w, float h, float s1, float t1, float s2, float t2, int texnum );
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void (*R_DrawTileClear)( int texnum, int x, int y, int w, int h );
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void (*FillRGBA)( float x, float y, float w, float h, int r, int g, int b, int a ); // in screen space
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void (*FillRGBABlend)( float x, float y, float w, float h, int r, int g, int b, int a ); // in screen space
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// screenshot, cubemapshot
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qboolean (*VID_ScreenShot)( const char *filename, int shot_type );
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qboolean (*VID_CubemapShot)( const char *base, uint size, const float *vieworg, qboolean skyshot );
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// light
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colorVec (*R_LightPoint)( const float *p );
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void (*R_AddEfrags)( struct cl_entity_s *ent );
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void (*R_RemoveEfrags)( struct cl_entity_s *ent );
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// decals
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// Shoots a decal onto the surface of the BSP. position is the center of the decal in world coords
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void (*R_DecalShoot)( int textureIndex, int entityIndex, int modelIndex, vec3_t pos, int flags, float scale );
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void (*R_DecalRemoveAll)( int texture );
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int (*R_CreateDecalList)( struct decallist_s *pList );
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void (*R_ClearAllDecals)( void );
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// studio interface
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float (*R_StudioEstimateFrame)( cl_entity_t *e, mstudioseqdesc_t *pseqdesc );
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void (*R_StudioLerpMovement)( cl_entity_t *e, double time, vec3_t origin, vec3_t angles );
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2019-02-23 19:49:46 +01:00
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void (*CL_InitStudioAPI)( void );
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2019-02-18 19:25:26 +01:00
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// bmodel
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void (*R_InitSkyClouds)( struct mip_s *mt, struct texture_s *tx, qboolean custom_palette );
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void (*GL_SubdivideSurface)( msurface_t *fa );
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2019-02-23 19:49:46 +01:00
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void (*CL_RunLightStyles)( void );
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2019-02-18 19:25:26 +01:00
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// sprites
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void (*R_GetSpriteParms)( int *frameWidth, int *frameHeight, int *numFrames, int currentFrame, const model_t *pSprite );
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// model management
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// flags ignored for everything except spritemodels
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void (*Mod_LoadModel)( modtype_t desiredType, model_t *mod, const byte *buf, qboolean *loaded, int flags );
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void (*Mod_LoadMapSprite)( struct model_s *mod, const void *buffer, size_t size, qboolean *loaded );
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void (*Mod_UnloadModel)( model_t *mod );
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void (*Mod_StudioLoadTextures)( model_t *mod, void *data );
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void (*Mod_StudioUnloadTextures)( void *data );
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// particle renderer
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void (*CL_Particle)( const vec3_t origin, int color, float life, int zpos, int zvel ); // debug thing
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2019-02-23 19:49:46 +01:00
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// efx implementation
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void (*CL_DrawParticles)( double frametime, particle_t *particles );
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void (*CL_DrawTracers)( double frametime, particle_t *tracers );
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void (*CL_DrawBeams)( int fTrans , BEAM *beams );
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qboolean (*R_BeamCull)( const vec3_t start, const vec3_t end, qboolean pvsOnly );
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2019-02-18 19:25:26 +01:00
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// Xash3D Render Interface
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render_api_t *RenderAPI; // partial RenderAPI implementation
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render_interface_t *RenderIface; // compatible RenderInterface implementation: renderer should call client RenderInterface by itself
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// TriAPI Interface
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// NOTE: implementation isn't required to be compatible
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void (*TriRenderMode)( int mode );
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void (*Begin)( int primitiveCode );
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void (*End)( void );
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void (*Color4f)( float r, float g, float b, float a );
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void (*Color4ub)( unsigned char r, unsigned char g, unsigned char b, unsigned char a );
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void (*TexCoord2f)( float u, float v );
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void (*Vertex3fv)( const float *worldPnt );
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void (*Vertex3f)( float x, float y, float z );
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int (*SpriteTexture)( struct model_s *pSpriteModel, int frame );
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int (*WorldToScreen)( const float *world, float *screen ); // Returns 1 if it's z clipped
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void (*Fog)( float flFogColor[3], float flStart, float flEnd, int bOn ); //Works just like GL_FOG, flFogColor is r/g/b.
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void (*ScreenToWorld)( const float *screen, float *world );
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void (*GetMatrix)( const int pname, float *matrix );
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void (*FogParams)( float flDensity, int iFogSkybox );
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void (*CullFace)( TRICULLSTYLE mode );
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// vgui drawing implementation
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vguiapi_t *VGuiAPI;
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// efx api
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efx_api_t *EfxAPI;
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} ref_interface_t;
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typedef int (*REFAPI)( int version, ref_interface_t *pFunctionTable, ref_api_t* engfuncs, ref_globals_t *pGlobals );
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#endif // REF_API
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