Xash3D FWGS engine.
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/*
cl_render.c - RenderAPI loader & implementation
Copyright (C) 2019 a1batross
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 XASH_DEDICATED
#include "common.h"
#include "client.h"
#include "library.h"
static int R_FatPVS( const vec3_t org, float radius, byte *visbuffer, qboolean merge, qboolean fullvis )
{
return Mod_FatPVS( org, radius, visbuffer, world.visbytes, merge, fullvis );
}
static lightstyle_t *CL_GetLightStyle( int number )
{
Assert( number >= 0 && number < MAX_LIGHTSTYLES );
return &cl.lightstyles[number];
}
static const ref_overview_t *GL_GetOverviewParms( void )
{
return &clgame.overView;
}
static void *R_Mem_Alloc( size_t cb, const char *filename, const int fileline )
{
return _Mem_Alloc( cls.mempool, cb, true, filename, fileline );
}
static void R_Mem_Free( void *mem, const char *filename, const int fileline )
{
if( !mem ) return;
_Mem_Free( mem, filename, fileline );
}
/*
=========
pfnGetFilesList
=========
*/
static char **pfnGetFilesList( const char *pattern, int *numFiles, int gamedironly )
{
static search_t *t = NULL;
if( t ) Mem_Free( t ); // release prev search
t = FS_Search( pattern, true, gamedironly );
if( !t )
{
if( numFiles ) *numFiles = 0;
return NULL;
}
if( numFiles ) *numFiles = t->numfilenames;
return t->filenames;
}
static uint pfnFileBufferCRC32( const void *buffer, const int length )
{
uint modelCRC = 0;
if( !buffer || length <= 0 )
return modelCRC;
CRC32_Init( &modelCRC );
CRC32_ProcessBuffer( &modelCRC, buffer, length );
return CRC32_Final( modelCRC );
}
/*
=================
R_EnvShot
=================
*/
static void R_EnvShot( const float *vieworg, const char *name, qboolean skyshot, int shotsize )
{
static vec3_t viewPoint;
if( !COM_CheckString( name ))
return;
if( cls.scrshot_action != scrshot_inactive )
{
if( cls.scrshot_action != scrshot_skyshot && cls.scrshot_action != scrshot_envshot )
Con_Printf( S_ERROR "R_%sShot: subsystem is busy, try for next frame.\n", skyshot ? "Sky" : "Env" );
return;
}
cls.envshot_vieworg = NULL; // use client view
Q_strncpy( cls.shotname, name, sizeof( cls.shotname ));
if( vieworg )
{
// make sure what viewpoint don't temporare
VectorCopy( vieworg, viewPoint );
cls.envshot_vieworg = viewPoint;
cls.envshot_disable_vis = true;
}
// make request for envshot
if( skyshot ) cls.scrshot_action = scrshot_skyshot;
else cls.scrshot_action = scrshot_envshot;
// catch negative values
cls.envshot_viewsize = max( 0, shotsize );
}
/*
=============
CL_GenericHandle
=============
*/
const char *CL_GenericHandle( int fileindex )
{
if( fileindex < 0 || fileindex >= MAX_CUSTOM )
return 0;
return cl.files_precache[fileindex];
}
static render_api_t gRenderAPI =
{
NULL, // GL_RenderGetParm,
NULL, // R_GetDetailScaleForTexture,
NULL, // R_GetExtraParmsForTexture,
CL_GetLightStyle,
CL_GetDynamicLight,
CL_GetEntityLight,
LightToTexGamma,
NULL, // R_GetFrameTime,
NULL, // R_SetCurrentEntity,
NULL, // R_SetCurrentModel,
R_FatPVS,
NULL, // R_StoreEfrags,
NULL, // GL_FindTexture,
NULL, // GL_TextureName,
NULL, // GL_TextureData,
NULL, // GL_LoadTexture,
NULL, // GL_CreateTexture,
NULL, // GL_LoadTextureArray,
NULL, // GL_CreateTextureArray,
NULL, // GL_FreeTexture,
NULL, // DrawSingleDecal,
NULL, // R_DecalSetupVerts,
NULL, // R_EntityRemoveDecals,
(void*)AVI_LoadVideo,
(void*)AVI_GetVideoInfo,
(void*)AVI_GetVideoFrameNumber,
(void*)AVI_GetVideoFrame,
NULL, // R_UploadStretchRaw,
(void*)AVI_FreeVideo,
(void*)AVI_IsActive,
S_StreamAviSamples,
NULL,
NULL,
NULL, // GL_Bind,
NULL, // GL_SelectTexture,
NULL, // GL_LoadTexMatrixExt,
NULL, // GL_LoadIdentityTexMatrix,
NULL, // GL_CleanUpTextureUnits,
NULL, // GL_TexGen,
NULL, // GL_TextureTarget,
NULL, // GL_SetTexCoordArrayMode,
NULL, // GL_GetProcAddress,
NULL, // GL_UpdateTexSize,
NULL,
NULL,
NULL, // CL_DrawParticlesExternal,
R_EnvShot,
pfnSPR_LoadExt,
NULL, // R_LightVec,
NULL, // R_StudioGetTexture,
GL_GetOverviewParms,
CL_GenericHandle,
NULL,
NULL,
R_Mem_Alloc,
R_Mem_Free,
pfnGetFilesList,
pfnFileBufferCRC32,
COM_CompareFileTime,
Host_Error,
(void*)CL_ModelHandle,
pfnTime,
Cvar_Set,
S_FadeMusicVolume,
COM_SetRandomSeed,
};
/*
===============
R_InitRenderAPI
Initialize client external rendering
===============
*/
qboolean R_InitRenderAPI( void )
{
// make sure what render functions is cleared
memset( &clgame.drawFuncs, 0, sizeof( clgame.drawFuncs ));
if( clgame.dllFuncs.pfnGetRenderInterface )
{
if( clgame.dllFuncs.pfnGetRenderInterface( CL_RENDER_INTERFACE_VERSION, &gRenderAPI, &clgame.drawFuncs ))
{
Con_Reportf( "CL_LoadProgs: ^2initailized extended RenderAPI ^7ver. %i\n", CL_RENDER_INTERFACE_VERSION );
return true;
}
// make sure what render functions is cleared
memset( &clgame.drawFuncs, 0, sizeof( clgame.drawFuncs ));
return false; // just tell user about problems
}
// render interface is missed
return true;
}
#endif // XASH_DEDICATED