Xash3D FWGS engine.
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#include "common.h"
#include "client.h"
#include "library.h"
#include "cl_tent.h"
#include "platform/platform.h"
#include "vid_common.h"
struct ref_state_s ref;
ref_globals_t refState;
convar_t *gl_vsync;
convar_t *gl_showtextures;
convar_t *r_decals;
convar_t *r_adjust_fov;
convar_t *gl_wgl_msaa_samples;
convar_t *gl_clear;
void R_GetTextureParms( int *w, int *h, int texnum )
{
if( w ) *w = REF_GET_PARM( PARM_TEX_WIDTH, texnum );
if( h ) *h = REF_GET_PARM( PARM_TEX_HEIGHT, texnum );
}
/*
================
GL_FreeImage
Frees image by name
================
*/
void GL_FreeImage( const char *name )
{
int texnum;
if(( texnum = ref.dllFuncs.GL_FindTexture( name )) != 0 )
ref.dllFuncs.GL_FreeTexture( texnum );
}
void GL_RenderFrame( const ref_viewpass_t *rvp )
{
refState.time = cl.time;
refState.oldtime = cl.oldtime;
refState.realtime = host.realtime;
refState.frametime = host.frametime;
VectorCopy( rvp->vieworigin, refState.vieworg );
VectorCopy( rvp->viewangles, refState.viewangles );
AngleVectors( refState.viewangles, refState.vforward, refState.vright, refState.vup );
ref.dllFuncs.GL_RenderFrame( rvp );
}
static int pfnEngineGetParm( int parm, int arg )
{
return CL_RenderGetParm( parm, arg, false ); // prevent recursion
}
static void pfnCbuf_SetOpenGLConfigHack( qboolean set )
{
host.apply_opengl_config = set;
}
static world_static_t *pfnGetWorld( void )
{
return &world;
}
static void pfnStudioEvent( const mstudioevent_t *event, const cl_entity_t *e )
{
clgame.dllFuncs.pfnStudioEvent( event, e );
}
static efrag_t* pfnGetEfragsFreeList( void )
{
return clgame.free_efrags;
}
static void pfnSetEfragsFreeList( efrag_t *list )
{
clgame.free_efrags = list;
}
static model_t *pfnGetDefaultSprite( enum ref_defaultsprite_e spr )
{
switch( spr )
{
case REF_DOT_SPRITE: return cl_sprite_dot;
case REF_CHROME_SPRITE: return cl_sprite_shell;
default: Host_Error( "GetDefaultSprite: unknown sprite %d\n", spr );
}
return NULL;
}
static void *pfnMod_Extradata( int type, model_t *m )
{
switch( type )
{
case mod_alias: return Mod_AliasExtradata( m );
case mod_studio: return Mod_StudioExtradata( m );
case mod_sprite: // fallthrough
case mod_brush: return NULL;
default: Host_Error( "Mod_Extradata: unknown type %d\n", type );
}
return NULL;
}
static model_t *pfnMod_GetCurrentLoadingModel( void )
{
return loadmodel;
}
static void pfnMod_SetCurrentLoadingModel( model_t *m )
{
loadmodel = m;
}
static void pfnGetPredictedOrigin( vec3_t v )
{
VectorCopy( cl.simorg, v );
}
static color24 *pfnCL_GetPaletteColor( int color ) // clgame.palette[color]
{
return &clgame.palette[color];
}
static void pfnCL_GetScreenInfo( int *width, int *height ) // clgame.scrInfo, ptrs may be NULL
{
if( width ) *width = clgame.scrInfo.iWidth;
if( height ) *height = clgame.scrInfo.iHeight;
}
static void pfnSetLocalLightLevel( int level )
{
cl.local.light_level = level;
}
/*
===============
pfnPlayerInfo
===============
*/
static player_info_t *pfnPlayerInfo( int index )
{
if( index == -1 ) // special index for menu
return &gameui.playerinfo;
if( index < 0 || index > cl.maxclients )
return NULL;
return &cl.players[index];
}
/*
===============
pfnGetPlayerState
===============
*/
static entity_state_t *R_StudioGetPlayerState( int index )
{
if( index < 0 || index >= cl.maxclients )
return NULL;
return &cl.frames[cl.parsecountmod].playerstate[index];
}
static int pfnGetStudioModelInterface( int version, struct r_studio_interface_s **ppinterface, struct engine_studio_api_s *pstudio )
{
return clgame.dllFuncs.pfnGetStudioModelInterface ?
clgame.dllFuncs.pfnGetStudioModelInterface( version, ppinterface, pstudio ) :
0;
}
static byte *pfnImage_GetPool( void )
{
return host.imagepool;
}
static const bpc_desc_t *pfnImage_GetPFDesc( int idx )
{
return &PFDesc[idx];
}
static void pfnDrawNormalTriangles( void )
{
clgame.dllFuncs.pfnDrawNormalTriangles();
}
static void pfnDrawTransparentTriangles( void )
{
clgame.dllFuncs.pfnDrawTransparentTriangles();
}
static screenfade_t *pfnRefGetScreenFade( void )
{
return &clgame.fade;
}
/*
===============
R_DoResetGamma
gamma will be reset for
some type of screenshots
===============
*/
static qboolean R_DoResetGamma( void )
{
switch( cls.scrshot_action )
{
case scrshot_envshot:
case scrshot_skyshot:
return true;
default:
return false;
}
}
static ref_api_t gEngfuncs =
{
pfnEngineGetParm,
(void*)Cvar_Get,
(void*)Cvar_FindVarExt,
Cvar_VariableValue,
Cvar_VariableString,
Cvar_SetValue,
Cvar_Set,
(void*)Cvar_RegisterVariable,
Cvar_FullSet,
Cmd_AddRefCommand,
Cmd_RemoveCommand,
Cmd_Argc,
Cmd_Argv,
Cmd_Args,
Cbuf_AddText,
Cbuf_InsertText,
Cbuf_Execute,
pfnCbuf_SetOpenGLConfigHack,
Con_Printf,
Con_DPrintf,
Con_Reportf,
Con_NPrintf,
Con_NXPrintf,
CL_CenterPrint,
Con_DrawStringLen,
Con_DrawString,
CL_DrawCenterPrint,
CL_GetLocalPlayer,
CL_GetViewModel,
CL_GetEntityByIndex,
R_BeamGetEntity,
CL_GetWaterEntity,
CL_AddVisibleEntity,
Mod_SampleSizeForFace,
Mod_BoxVisible,
pfnGetWorld,
Mod_PointInLeaf,
Mod_CreatePolygonsForHull,
R_StudioSlerpBones,
R_StudioCalcBoneQuaternion,
R_StudioCalcBonePosition,
R_StudioGetAnim,
pfnStudioEvent,
CL_DrawEFX,
CL_ThinkParticle,
R_FreeDeadParticles,
CL_AllocParticleFast,
CL_AllocElight,
pfnGetDefaultSprite,
R_StoreEfrags,
Mod_ForName,
pfnMod_Extradata,
CL_ModelHandle,
pfnMod_GetCurrentLoadingModel,
pfnMod_SetCurrentLoadingModel,
CL_GetRemapInfoForEntity,
CL_AllocRemapInfo,
CL_FreeRemapInfo,
CL_UpdateRemapInfo,
CL_ExtraUpdate,
Host_Error,
COM_SetRandomSeed,
COM_RandomFloat,
COM_RandomLong,
pfnRefGetScreenFade,
CL_TextMessageGet,
pfnGetPredictedOrigin,
pfnCL_GetPaletteColor,
pfnCL_GetScreenInfo,
pfnSetLocalLightLevel,
Sys_CheckParm,
pfnPlayerInfo,
R_StudioGetPlayerState,
Mod_CacheCheck,
Mod_LoadCacheFile,
Mod_Calloc,
pfnGetStudioModelInterface,
_Mem_AllocPool,
_Mem_FreePool,
_Mem_Alloc,
_Mem_Realloc,
_Mem_Free,
COM_LoadLibrary,
COM_FreeLibrary,
COM_GetProcAddress,
FS_LoadFile,
COM_ParseFile,
FS_FileExists,
FS_AllowDirectPaths,
R_Init_Video,
R_Free_Video,
GL_SetAttribute,
GL_GetAttribute,
GL_GetProcAddress,
GL_SwapBuffers,
SW_CreateBuffer,
SW_LockBuffer,
SW_UnlockBuffer,
BuildGammaTable,
LightToTexGamma,
R_DoResetGamma,
CL_GetLightStyle,
CL_GetDynamicLight,
CL_GetEntityLight,
R_FatPVS,
GL_GetOverviewParms,
Sys_DoubleTime,
pfnGetPhysent,
pfnTraceSurface,
PM_TraceLine,
CL_VisTraceLine,
CL_TraceLine,
pfnGetMoveVars,
Image_AddCmdFlags,
Image_SetForceFlags,
Image_ClearForceFlags,
Image_CustomPalette,
Image_Process,
FS_LoadImage,
FS_SaveImage,
FS_CopyImage,
FS_FreeImage,
Image_SetMDLPointer,
pfnImage_GetPool,
pfnImage_GetPFDesc,
pfnDrawNormalTriangles,
pfnDrawTransparentTriangles,
&clgame.drawFuncs
};
static void R_UnloadProgs( void )
{
if( !ref.hInstance ) return;
// deinitialize renderer
ref.dllFuncs.R_Shutdown();
Cvar_FullSet( "host_refloaded", "0", FCVAR_READ_ONLY );
COM_FreeLibrary( ref.hInstance );
ref.hInstance = NULL;
memset( &refState, 0, sizeof( refState ));
memset( &ref.dllFuncs, 0, sizeof( ref.dllFuncs ));
Cvar_Unlink( FCVAR_RENDERINFO | FCVAR_GLCONFIG );
Cmd_Unlink( CMD_REFDLL );
}
static void CL_FillTriAPIFromRef( triangleapi_t *dst, const ref_interface_t *src )
{
dst->version = TRI_API_VERSION;
dst->Begin = src->Begin;
dst->RenderMode = TriRenderMode;
dst->End = src->End;
dst->Color4f = TriColor4f;
dst->Color4ub = TriColor4ub;
dst->TexCoord2f = src->TexCoord2f;
dst->Vertex3f = src->Vertex3f;
dst->Vertex3fv = src->Vertex3fv;
dst->Brightness = TriBrightness;
dst->CullFace = TriCullFace;
dst->SpriteTexture = TriSpriteTexture;
dst->WorldToScreen = TriWorldToScreen;
dst->Fog = src->Fog;
dst->ScreenToWorld = src->ScreenToWorld;
dst->GetMatrix = src->GetMatrix;
dst->BoxInPVS = TriBoxInPVS;
dst->LightAtPoint = TriLightAtPoint;
dst->Color4fRendermode = TriColor4fRendermode;
dst->FogParams = src->FogParams;
}
static qboolean R_LoadProgs( const char *name )
{
extern triangleapi_t gTriApi;
static ref_api_t gpEngfuncs;
REFAPI GetRefAPI; // single export
if( ref.hInstance ) R_UnloadProgs();
#ifdef XASH_INTERNAL_GAMELIBS
if( !(ref.hInstance = COM_LoadLibrary( name, false, true ) ))
{
return false;
}
#else
if( !(ref.hInstance = COM_LoadLibrary( name, false, true ) ))
{
FS_AllowDirectPaths( true );
if( !(ref.hInstance = COM_LoadLibrary( name, false, true ) ))
{
FS_AllowDirectPaths( false );
return false;
}
}
#endif
FS_AllowDirectPaths( false );
if( ( GetRefAPI = (REFAPI)COM_GetProcAddress( ref.hInstance, "GetRefAPI" )) == NULL )
{
COM_FreeLibrary( ref.hInstance );
Con_Reportf( "R_LoadProgs: can't init renderer API\n" );
ref.hInstance = NULL;
return false;
}
// make local copy of engfuncs to prevent overwrite it with user dll
memcpy( &gpEngfuncs, &gEngfuncs, sizeof( gpEngfuncs ));
if( !GetRefAPI( REF_API_VERSION, &ref.dllFuncs, &gpEngfuncs, &refState ))
{
COM_FreeLibrary( ref.hInstance );
Con_Reportf( "R_LoadProgs: can't init renderer API: wrong version\n" );
ref.hInstance = NULL;
return false;
}
refState.developer = host_developer.value;
if( !ref.dllFuncs.R_Init( ) )
{
COM_FreeLibrary( ref.hInstance );
Con_Reportf( "R_LoadProgs: can't init renderer!\n" ); //, ref.dllFuncs.R_GetInitError() );
ref.hInstance = NULL;
return false;
}
Cvar_FullSet( "host_refloaded", "1", FCVAR_READ_ONLY );
ref.initialized = true;
// initialize TriAPI callbacks
CL_FillTriAPIFromRef( &gTriApi, &ref.dllFuncs );
return true;
}
void R_Shutdown( void )
{
int i;
model_t *mod;
// release SpriteTextures
for( i = 1, mod = clgame.sprites; i < MAX_CLIENT_SPRITES; i++, mod++ )
{
if( !mod->name[0] ) continue;
Mod_FreeModel( mod );
}
memset( clgame.sprites, 0, sizeof( clgame.sprites ));
// correctly free all models before render unload
// change this if need add online render changing
Mod_FreeAll();
R_UnloadProgs();
ref.initialized = false;
}
void R_GetRendererName( char *dest, size_t size, const char *refdll )
{
Q_snprintf( dest, size, "%sref_%s.%s",
#ifdef OS_LIB_PREFIX
OS_LIB_PREFIX,
#else
"",
#endif
refdll, OS_LIB_EXT );
}
qboolean R_Init( void )
{
string refopt, refdll;
if( !Sys_GetParmFromCmdLine( "-ref", refopt ) )
{
// compile-time defaults
R_GetRendererName( refdll, sizeof( refdll ), DEFAULT_RENDERER );
Con_Printf( "Loading default renderer: %s\n", refdll );
}
else if( !Q_strstr( refopt, va( ".%s", OS_LIB_EXT ) ) )
{
// shortened renderer name
R_GetRendererName( refdll, sizeof( refdll ), refopt );
Con_Printf( "Loading renderer by short name: %s\n", refdll );
}
else
{
// full path
Q_strcpy( refdll, refopt );
Con_Printf( "Loading renderer: %s\n", refdll );
}
gl_vsync = Cvar_Get( "gl_vsync", "0", FCVAR_ARCHIVE, "enable vertical syncronization" );
gl_showtextures = Cvar_Get( "gl_showtextures", "0", FCVAR_CHEAT, "show all uploaded textures" );
r_adjust_fov = Cvar_Get( "r_adjust_fov", "1", FCVAR_ARCHIVE, "making FOV adjustment for wide-screens" );
r_decals = Cvar_Get( "r_decals", "4096", FCVAR_ARCHIVE, "sets the maximum number of decals" );
gl_wgl_msaa_samples = Cvar_Get( "gl_wgl_msaa_samples", "0", FCVAR_GLCONFIG, "samples number for multisample anti-aliasing" );
gl_clear = Cvar_Get( "gl_clear", "0", FCVAR_ARCHIVE, "clearing screen after each frame" );
if( !R_LoadProgs( refdll ))
{
R_Shutdown();
Host_Error( "Can't initialize %s renderer!\n", refdll );
return false;
}
Con_Reportf( "Renderer %s initialized\n", refdll );
SCR_Init();
return true;
}