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xash3d-fwgs/ref_gl/gl_opengl.c

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#include "gl_local.h"
cvar_t *gl_extensions;
cvar_t *gl_texture_anisotropy;
cvar_t *gl_texture_lodbias;
cvar_t *gl_texture_nearest;
cvar_t *gl_lightmap_nearest;
cvar_t *gl_keeptjunctions;
cvar_t *gl_emboss_scale;
cvar_t *gl_detailscale;
cvar_t *gl_check_errors;
cvar_t *gl_polyoffset;
cvar_t *gl_wireframe;
cvar_t *gl_finish;
cvar_t *gl_nosort;
cvar_t *gl_vsync;
cvar_t *gl_clear;
cvar_t *gl_test;
cvar_t *gl_msaa;
cvar_t *gl_stencilbits;
cvar_t *r_speeds;
cvar_t *r_fullbright;
cvar_t *r_norefresh;
cvar_t *r_showtree;
cvar_t *r_lighting_extended;
cvar_t *r_lighting_modulate;
cvar_t *r_lighting_ambient;
cvar_t *r_detailtextures;
cvar_t *r_drawentities;
cvar_t *r_adjust_fov;
cvar_t *r_decals;
cvar_t *r_novis;
cvar_t *r_nocull;
cvar_t *r_lockpvs;
cvar_t *r_lockfrustum;
cvar_t *r_traceglow;
cvar_t *r_dynamic;
cvar_t *r_lightmap;
cvar_t *r_showhull;
cvar_t *gl_round_down;
cvar_t *r_vbo;
cvar_t *r_vbo_dlightmode;
cvar_t *gl_showtextures;
cvar_t *cl_lightstyle_lerping;
cvar_t *vid_brightness;
cvar_t *vid_gamma;
cvar_t *tracerred;
cvar_t *tracergreen;
cvar_t *tracerblue;
cvar_t *traceralpha;
byte *r_temppool;
gl_globals_t tr;
glconfig_t glConfig;
glstate_t glState;
glwstate_t glw_state;
#define GL_CALL( x ) #x, (void**)&p##x
static dllfunc_t opengl_110funcs[] =
{
{ GL_CALL( glClearColor ) },
{ GL_CALL( glClear ) },
{ GL_CALL( glAlphaFunc ) },
{ GL_CALL( glBlendFunc ) },
{ GL_CALL( glCullFace ) },
{ GL_CALL( glDrawBuffer ) },
{ GL_CALL( glReadBuffer ) },
{ GL_CALL( glAccum ) },
{ GL_CALL( glEnable ) },
{ GL_CALL( glDisable ) },
{ GL_CALL( glEnableClientState ) },
{ GL_CALL( glDisableClientState ) },
{ GL_CALL( glGetBooleanv ) },
{ GL_CALL( glGetDoublev ) },
{ GL_CALL( glGetFloatv ) },
{ GL_CALL( glGetIntegerv ) },
{ GL_CALL( glGetError ) },
{ GL_CALL( glGetString ) },
{ GL_CALL( glFinish ) },
{ GL_CALL( glFlush ) },
{ GL_CALL( glClearDepth ) },
{ GL_CALL( glDepthFunc ) },
{ GL_CALL( glDepthMask ) },
{ GL_CALL( glDepthRange ) },
{ GL_CALL( glFrontFace ) },
{ GL_CALL( glDrawElements ) },
{ GL_CALL( glDrawArrays ) },
{ GL_CALL( glColorMask ) },
{ GL_CALL( glIndexPointer ) },
{ GL_CALL( glVertexPointer ) },
{ GL_CALL( glNormalPointer ) },
{ GL_CALL( glColorPointer ) },
{ GL_CALL( glTexCoordPointer ) },
{ GL_CALL( glArrayElement ) },
{ GL_CALL( glColor3f ) },
{ GL_CALL( glColor3fv ) },
{ GL_CALL( glColor4f ) },
{ GL_CALL( glColor4fv ) },
{ GL_CALL( glColor3ub ) },
{ GL_CALL( glColor4ub ) },
{ GL_CALL( glColor4ubv ) },
{ GL_CALL( glTexCoord1f ) },
{ GL_CALL( glTexCoord2f ) },
{ GL_CALL( glTexCoord3f ) },
{ GL_CALL( glTexCoord4f ) },
{ GL_CALL( glTexCoord1fv ) },
{ GL_CALL( glTexCoord2fv ) },
{ GL_CALL( glTexCoord3fv ) },
{ GL_CALL( glTexCoord4fv ) },
{ GL_CALL( glTexGenf ) },
{ GL_CALL( glTexGenfv ) },
{ GL_CALL( glTexGeni ) },
{ GL_CALL( glVertex2f ) },
{ GL_CALL( glVertex3f ) },
{ GL_CALL( glVertex3fv ) },
{ GL_CALL( glNormal3f ) },
{ GL_CALL( glNormal3fv ) },
{ GL_CALL( glBegin ) },
{ GL_CALL( glEnd ) },
{ GL_CALL( glLineWidth ) },
{ GL_CALL( glPointSize ) },
{ GL_CALL( glMatrixMode ) },
{ GL_CALL( glOrtho ) },
{ GL_CALL( glRasterPos2f ) },
{ GL_CALL( glFrustum ) },
{ GL_CALL( glViewport ) },
{ GL_CALL( glPushMatrix ) },
{ GL_CALL( glPopMatrix ) },
{ GL_CALL( glPushAttrib ) },
{ GL_CALL( glPopAttrib ) },
{ GL_CALL( glLoadIdentity ) },
{ GL_CALL( glLoadMatrixd ) },
{ GL_CALL( glLoadMatrixf ) },
{ GL_CALL( glMultMatrixd ) },
{ GL_CALL( glMultMatrixf ) },
{ GL_CALL( glRotated ) },
{ GL_CALL( glRotatef ) },
{ GL_CALL( glScaled ) },
{ GL_CALL( glScalef ) },
{ GL_CALL( glTranslated ) },
{ GL_CALL( glTranslatef ) },
{ GL_CALL( glReadPixels ) },
{ GL_CALL( glDrawPixels ) },
{ GL_CALL( glStencilFunc ) },
{ GL_CALL( glStencilMask ) },
{ GL_CALL( glStencilOp ) },
{ GL_CALL( glClearStencil ) },
{ GL_CALL( glIsEnabled ) },
{ GL_CALL( glIsList ) },
{ GL_CALL( glIsTexture ) },
{ GL_CALL( glTexEnvf ) },
{ GL_CALL( glTexEnvfv ) },
{ GL_CALL( glTexEnvi ) },
{ GL_CALL( glTexParameterf ) },
{ GL_CALL( glTexParameterfv ) },
{ GL_CALL( glTexParameteri ) },
{ GL_CALL( glHint ) },
{ GL_CALL( glPixelStoref ) },
{ GL_CALL( glPixelStorei ) },
{ GL_CALL( glGenTextures ) },
{ GL_CALL( glDeleteTextures ) },
{ GL_CALL( glBindTexture ) },
{ GL_CALL( glTexImage1D ) },
{ GL_CALL( glTexImage2D ) },
{ GL_CALL( glTexSubImage1D ) },
{ GL_CALL( glTexSubImage2D ) },
{ GL_CALL( glCopyTexImage1D ) },
{ GL_CALL( glCopyTexImage2D ) },
{ GL_CALL( glCopyTexSubImage1D ) },
{ GL_CALL( glCopyTexSubImage2D ) },
{ GL_CALL( glScissor ) },
{ GL_CALL( glGetTexImage ) },
{ GL_CALL( glGetTexEnviv ) },
{ GL_CALL( glPolygonOffset ) },
{ GL_CALL( glPolygonMode ) },
{ GL_CALL( glPolygonStipple ) },
{ GL_CALL( glClipPlane ) },
{ GL_CALL( glGetClipPlane ) },
{ GL_CALL( glShadeModel ) },
{ GL_CALL( glGetTexLevelParameteriv ) },
{ GL_CALL( glGetTexLevelParameterfv ) },
{ GL_CALL( glFogfv ) },
{ GL_CALL( glFogf ) },
{ GL_CALL( glFogi ) },
{ NULL , NULL }
};
static dllfunc_t debugoutputfuncs[] =
{
{ GL_CALL( glDebugMessageControlARB ) },
{ GL_CALL( glDebugMessageInsertARB ) },
{ GL_CALL( glDebugMessageCallbackARB ) },
{ GL_CALL( glGetDebugMessageLogARB ) },
{ NULL , NULL }
};
static dllfunc_t multitexturefuncs[] =
{
{ GL_CALL( glMultiTexCoord1f ) },
{ GL_CALL( glMultiTexCoord2f ) },
{ GL_CALL( glMultiTexCoord3f ) },
{ GL_CALL( glMultiTexCoord4f ) },
{ GL_CALL( glActiveTexture ) },
{ GL_CALL( glActiveTextureARB ) },
{ GL_CALL( glClientActiveTexture ) },
{ GL_CALL( glClientActiveTextureARB ) },
{ NULL , NULL }
};
static dllfunc_t texture3dextfuncs[] =
{
{ GL_CALL( glTexImage3D ) },
{ GL_CALL( glTexSubImage3D ) },
{ GL_CALL( glCopyTexSubImage3D ) },
{ NULL , NULL }
};
static dllfunc_t texturecompressionfuncs[] =
{
{ GL_CALL( glCompressedTexImage3DARB ) },
{ GL_CALL( glCompressedTexImage2DARB ) },
{ GL_CALL( glCompressedTexImage1DARB ) },
{ GL_CALL( glCompressedTexSubImage3DARB ) },
{ GL_CALL( glCompressedTexSubImage2DARB ) },
{ GL_CALL( glCompressedTexSubImage1DARB ) },
{ GL_CALL( glGetCompressedTexImage ) },
{ NULL , NULL }
};
static dllfunc_t vbofuncs[] =
{
{ GL_CALL( glBindBufferARB ) },
{ GL_CALL( glDeleteBuffersARB ) },
{ GL_CALL( glGenBuffersARB ) },
{ GL_CALL( glIsBufferARB ) },
{ GL_CALL( glMapBufferARB ) },
{ GL_CALL( glUnmapBufferARB ) }, // ,
{ GL_CALL( glBufferDataARB ) },
{ GL_CALL( glBufferSubDataARB ) },
{ NULL, NULL}
};
/*
========================
DebugCallback
For ARB_debug_output
========================
*/
static void APIENTRY GL_DebugOutput( GLuint source, GLuint type, GLuint id, GLuint severity, GLint length, const GLcharARB *message, GLvoid *userParam )
{
switch( type )
{
case GL_DEBUG_TYPE_ERROR_ARB:
gEngfuncs.Con_Printf( S_OPENGL_ERROR "%s\n", message );
break;
case GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR_ARB:
gEngfuncs.Con_Printf( S_OPENGL_WARN "%s\n", message );
break;
case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR_ARB:
gEngfuncs.Con_Printf( S_OPENGL_WARN "%s\n", message );
break;
case GL_DEBUG_TYPE_PORTABILITY_ARB:
gEngfuncs.Con_Reportf( S_OPENGL_WARN "%s\n", message );
break;
case GL_DEBUG_TYPE_PERFORMANCE_ARB:
gEngfuncs.Con_Printf( S_OPENGL_NOTE "%s\n", message );
break;
case GL_DEBUG_TYPE_OTHER_ARB:
default:
gEngfuncs.Con_Printf( S_OPENGL_NOTE "%s\n", message );
break;
}
}
/*
=================
GL_SetExtension
=================
*/
void GL_SetExtension( int r_ext, int enable )
{
if( r_ext >= 0 && r_ext < GL_EXTCOUNT )
glConfig.extension[r_ext] = enable ? GL_TRUE : GL_FALSE;
else gEngfuncs.Con_Printf( S_ERROR "GL_SetExtension: invalid extension %d\n", r_ext );
}
/*
=================
GL_Support
=================
*/
qboolean GL_Support( int r_ext )
{
if( r_ext >= 0 && r_ext < GL_EXTCOUNT )
return glConfig.extension[r_ext] ? true : false;
gEngfuncs.Con_Printf( S_ERROR "GL_Support: invalid extension %d\n", r_ext );
return false;
}
/*
=================
GL_MaxTextureUnits
=================
*/
int GL_MaxTextureUnits( void )
{
if( GL_Support( GL_SHADER_GLSL100_EXT ))
return Q_min( Q_max( glConfig.max_texture_coords, glConfig.max_teximage_units ), MAX_TEXTURE_UNITS );
return glConfig.max_texture_units;
}
/*
=================
GL_CheckExtension
=================
*/
void GL_CheckExtension( const char *name, const dllfunc_t *funcs, const char *cvarname, int r_ext )
{
const dllfunc_t *func;
cvar_t *parm = NULL;
const char *extensions_string;
gEngfuncs.Con_Reportf( "GL_CheckExtension: %s ", name );
GL_SetExtension( r_ext, true );
if( cvarname )
{
// system config disable extensions
parm = gEngfuncs.Cvar_Get( cvarname, "1", FCVAR_GLCONFIG, va( CVAR_GLCONFIG_DESCRIPTION, name ));
}
if(( parm && !CVAR_TO_BOOL( parm )) || ( !CVAR_TO_BOOL( gl_extensions ) && r_ext != GL_OPENGL_110 ))
{
gEngfuncs.Con_Reportf( "- disabled\n" );
GL_SetExtension( r_ext, false );
return; // nothing to process at
}
extensions_string = glConfig.extensions_string;
if(( name[2] == '_' || name[3] == '_' ) && !Q_strstr( extensions_string, name ))
{
GL_SetExtension( r_ext, false ); // update render info
gEngfuncs.Con_Reportf( "- ^1failed\n" );
return;
}
// clear exports
for( func = funcs; func && func->name; func++ )
*func->func = NULL;
for( func = funcs; func && func->name != NULL; func++ )
{
// functions are cleared before all the extensions are evaluated
if((*func->func = (void *)gEngfuncs.GL_GetProcAddress( func->name )) == NULL )
GL_SetExtension( r_ext, false ); // one or more functions are invalid, extension will be disabled
}
if( GL_Support( r_ext ))
gEngfuncs.Con_Reportf( "- ^2enabled\n" );
else gEngfuncs.Con_Reportf( "- ^1failed\n" );
}
/*
===============
GL_SetDefaultTexState
===============
*/
static void GL_SetDefaultTexState( void )
{
int i;
memset( glState.currentTextures, -1, MAX_TEXTURE_UNITS * sizeof( *glState.currentTextures ));
memset( glState.texCoordArrayMode, 0, MAX_TEXTURE_UNITS * sizeof( *glState.texCoordArrayMode ));
memset( glState.genSTEnabled, 0, MAX_TEXTURE_UNITS * sizeof( *glState.genSTEnabled ));
for( i = 0; i < MAX_TEXTURE_UNITS; i++ )
{
glState.currentTextureTargets[i] = GL_NONE;
glState.texIdentityMatrix[i] = true;
}
}
/*
===============
GL_SetDefaultState
===============
*/
static void GL_SetDefaultState( void )
{
memset( &glState, 0, sizeof( glState ));
GL_SetDefaultTexState ();
// init draw stack
tr.draw_list = &tr.draw_stack[0];
tr.draw_stack_pos = 0;
}
/*
===============
GL_SetDefaults
===============
*/
static void GL_SetDefaults( void )
{
pglFinish();
pglClearColor( 0.5f, 0.5f, 0.5f, 1.0f );
pglDisable( GL_DEPTH_TEST );
pglDisable( GL_CULL_FACE );
pglDisable( GL_SCISSOR_TEST );
pglDepthFunc( GL_LEQUAL );
pglColor4f( 1.0f, 1.0f, 1.0f, 1.0f );
if( glState.stencilEnabled )
{
pglDisable( GL_STENCIL_TEST );
pglStencilMask( ( GLuint ) ~0 );
pglStencilFunc( GL_EQUAL, 0, ~0 );
pglStencilOp( GL_KEEP, GL_INCR, GL_INCR );
}
pglPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
pglPolygonOffset( -1.0f, -2.0f );
GL_CleanupAllTextureUnits();
pglDisable( GL_BLEND );
pglDisable( GL_ALPHA_TEST );
pglDisable( GL_POLYGON_OFFSET_FILL );
pglAlphaFunc( GL_GREATER, DEFAULT_ALPHATEST );
pglEnable( GL_TEXTURE_2D );
pglShadeModel( GL_SMOOTH );
pglFrontFace( GL_CCW );
pglPointSize( 1.2f );
pglLineWidth( 1.2f );
GL_Cull( GL_NONE );
}
/*
=================
R_RenderInfo_f
=================
*/
void R_RenderInfo_f( void )
{
gEngfuncs.Con_Printf( "\n" );
gEngfuncs.Con_Printf( "GL_VENDOR: %s\n", glConfig.vendor_string );
gEngfuncs.Con_Printf( "GL_RENDERER: %s\n", glConfig.renderer_string );
gEngfuncs.Con_Printf( "GL_VERSION: %s\n", glConfig.version_string );
// don't spam about extensions
gEngfuncs.Con_Reportf( "GL_EXTENSIONS: %s\n", glConfig.extensions_string );
gEngfuncs.Con_Printf( "GL_MAX_TEXTURE_SIZE: %i\n", glConfig.max_2d_texture_size );
if( GL_Support( GL_ARB_MULTITEXTURE ))
gEngfuncs.Con_Printf( "GL_MAX_TEXTURE_UNITS_ARB: %i\n", glConfig.max_texture_units );
if( GL_Support( GL_TEXTURE_CUBEMAP_EXT ))
gEngfuncs.Con_Printf( "GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB: %i\n", glConfig.max_cubemap_size );
if( GL_Support( GL_ANISOTROPY_EXT ))
gEngfuncs.Con_Printf( "GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT: %.1f\n", glConfig.max_texture_anisotropy );
if( GL_Support( GL_TEXTURE_2D_RECT_EXT ))
gEngfuncs.Con_Printf( "GL_MAX_RECTANGLE_TEXTURE_SIZE: %i\n", glConfig.max_2d_rectangle_size );
if( GL_Support( GL_TEXTURE_ARRAY_EXT ))
gEngfuncs.Con_Printf( "GL_MAX_ARRAY_TEXTURE_LAYERS_EXT: %i\n", glConfig.max_2d_texture_layers );
if( GL_Support( GL_SHADER_GLSL100_EXT ))
{
gEngfuncs.Con_Printf( "GL_MAX_TEXTURE_COORDS_ARB: %i\n", glConfig.max_texture_coords );
gEngfuncs.Con_Printf( "GL_MAX_TEXTURE_IMAGE_UNITS_ARB: %i\n", glConfig.max_teximage_units );
gEngfuncs.Con_Printf( "GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB: %i\n", glConfig.max_vertex_uniforms );
gEngfuncs.Con_Printf( "GL_MAX_VERTEX_ATTRIBS_ARB: %i\n", glConfig.max_vertex_attribs );
}
gEngfuncs.Con_Printf( "\n" );
gEngfuncs.Con_Printf( "MODE: %ix%i\n", gpGlobals->width, gpGlobals->height );
gEngfuncs.Con_Printf( "\n" );
gEngfuncs.Con_Printf( "VERTICAL SYNC: %s\n", gl_vsync->value ? "enabled" : "disabled" );
gEngfuncs.Con_Printf( "Color %d bits, Alpha %d bits, Depth %d bits, Stencil %d bits\n", glConfig.color_bits,
glConfig.alpha_bits, glConfig.depth_bits, glConfig.stencil_bits );
}
#ifdef XASH_GLES
void GL_InitExtensionsGLES( void )
{
// intialize wrapper type
#ifdef XASH_NANOGL
glConfig.context = CONTEXT_TYPE_GLES_1_X;
glConfig.wrapper = GLES_WRAPPER_NANOGL;
#elif defined( XASH_WES )
glConfig.context = CONTEXT_TYPE_GLES_2_X;
glConfig.wrapper = GLES_WRAPPER_WES;
#endif
glConfig.hardware_type = GLHW_GENERIC;
// initalize until base opengl functions loaded
GL_SetExtension( GL_DRAW_RANGEELEMENTS_EXT, true );
GL_SetExtension( GL_ARB_MULTITEXTURE, true );
pglGetIntegerv( GL_MAX_TEXTURE_UNITS_ARB, &glConfig.max_texture_units );
glConfig.max_texture_coords = glConfig.max_texture_units = 4;
GL_SetExtension( GL_ENV_COMBINE_EXT, true );
GL_SetExtension( GL_DOT3_ARB_EXT, true );
GL_SetExtension( GL_TEXTURE_3D_EXT, false );
GL_SetExtension( GL_SGIS_MIPMAPS_EXT, true ); // gles specs
GL_SetExtension( GL_ARB_VERTEX_BUFFER_OBJECT_EXT, true ); // gles specs
// hardware cubemaps
GL_CheckExtension( "GL_OES_texture_cube_map", NULL, "gl_texture_cubemap", GL_TEXTURECUBEMAP_EXT );
if( GL_Support( GL_TEXTURECUBEMAP_EXT ))
pglGetIntegerv( GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB, &glConfig.max_cubemap_size );
GL_SetExtension( GL_ARB_SEAMLESS_CUBEMAP, false );
GL_SetExtension( GL_EXT_POINTPARAMETERS, false );
GL_CheckExtension( "GL_OES_texture_npot", NULL, "gl_texture_npot", GL_ARB_TEXTURE_NPOT_EXT );
GL_SetExtension( GL_TEXTURE_COMPRESSION_EXT, false );
GL_SetExtension( GL_CUSTOM_VERTEX_ARRAY_EXT, false );
GL_SetExtension( GL_CLAMPTOEDGE_EXT, true ); // by gles1 specs
GL_SetExtension( GL_ANISOTROPY_EXT, false );
GL_SetExtension( GL_TEXTURE_LODBIAS, false );
GL_SetExtension( GL_CLAMP_TEXBORDER_EXT, false );
GL_SetExtension( GL_BLEND_MINMAX_EXT, false );
GL_SetExtension( GL_BLEND_SUBTRACT_EXT, false );
GL_SetExtension( GL_SEPARATESTENCIL_EXT, false );
GL_SetExtension( GL_STENCILTWOSIDE_EXT, false );
GL_SetExtension( GL_TEXTURE_ENV_ADD_EXT,false );
GL_SetExtension( GL_SHADER_OBJECTS_EXT, false );
GL_SetExtension( GL_SHADER_GLSL100_EXT, false );
GL_SetExtension( GL_VERTEX_SHADER_EXT,false );
GL_SetExtension( GL_FRAGMENT_SHADER_EXT, false );
GL_SetExtension( GL_SHADOW_EXT, false );
GL_SetExtension( GL_ARB_DEPTH_FLOAT_EXT, false );
GL_SetExtension( GL_OCCLUSION_QUERIES_EXT,false );
GL_CheckExtension( "GL_OES_depth_texture", NULL, "gl_depthtexture", GL_DEPTH_TEXTURE );
glConfig.texRectangle = glConfig.max_2d_rectangle_size = 0; // no rectangle
Cvar_FullSet( "gl_allow_mirrors", "0", CVAR_READ_ONLY); // No support for GLES
}
#else
void GL_InitExtensionsBigGL()
{
// intialize wrapper type
glConfig.context = CONTEXT_TYPE_GL;
glConfig.wrapper = GLES_WRAPPER_NONE;
if( Q_stristr( glConfig.renderer_string, "geforce" ))
glConfig.hardware_type = GLHW_NVIDIA;
else if( Q_stristr( glConfig.renderer_string, "quadro fx" ))
glConfig.hardware_type = GLHW_NVIDIA;
else if( Q_stristr(glConfig.renderer_string, "rv770" ))
glConfig.hardware_type = GLHW_RADEON;
else if( Q_stristr(glConfig.renderer_string, "radeon hd" ))
glConfig.hardware_type = GLHW_RADEON;
else if( Q_stristr( glConfig.renderer_string, "eah4850" ) || Q_stristr( glConfig.renderer_string, "eah4870" ))
glConfig.hardware_type = GLHW_RADEON;
else if( Q_stristr( glConfig.renderer_string, "radeon" ))
glConfig.hardware_type = GLHW_RADEON;
else if( Q_stristr( glConfig.renderer_string, "intel" ))
glConfig.hardware_type = GLHW_INTEL;
else glConfig.hardware_type = GLHW_GENERIC;
// multitexture
glConfig.max_texture_units = glConfig.max_texture_coords = glConfig.max_teximage_units = 1;
GL_CheckExtension( "GL_ARB_multitexture", multitexturefuncs, "gl_arb_multitexture", GL_ARB_MULTITEXTURE );
if( GL_Support( GL_ARB_MULTITEXTURE ))
{
pglGetIntegerv( GL_MAX_TEXTURE_UNITS_ARB, &glConfig.max_texture_units );
}
if( glConfig.max_texture_units == 1 )
GL_SetExtension( GL_ARB_MULTITEXTURE, false );
// 3d texture support
GL_CheckExtension( "GL_EXT_texture3D", texture3dextfuncs, "gl_texture_3d", GL_TEXTURE_3D_EXT );
if( GL_Support( GL_TEXTURE_3D_EXT ))
{
pglGetIntegerv( GL_MAX_3D_TEXTURE_SIZE, &glConfig.max_3d_texture_size );
if( glConfig.max_3d_texture_size < 32 )
{
GL_SetExtension( GL_TEXTURE_3D_EXT, false );
gEngfuncs.Con_Printf( S_ERROR "GL_EXT_texture3D reported bogus GL_MAX_3D_TEXTURE_SIZE, disabled\n" );
}
}
// 2d texture array support
GL_CheckExtension( "GL_EXT_texture_array", texture3dextfuncs, "gl_texture_2d_array", GL_TEXTURE_ARRAY_EXT );
if( GL_Support( GL_TEXTURE_ARRAY_EXT ))
pglGetIntegerv( GL_MAX_ARRAY_TEXTURE_LAYERS_EXT, &glConfig.max_2d_texture_layers );
// cubemaps support
GL_CheckExtension( "GL_ARB_texture_cube_map", NULL, "gl_texture_cubemap", GL_TEXTURE_CUBEMAP_EXT );
if( GL_Support( GL_TEXTURE_CUBEMAP_EXT ))
{
pglGetIntegerv( GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB, &glConfig.max_cubemap_size );
// check for seamless cubemaps too
GL_CheckExtension( "GL_ARB_seamless_cube_map", NULL, "gl_texture_cubemap_seamless", GL_ARB_SEAMLESS_CUBEMAP );
}
GL_CheckExtension( "GL_ARB_texture_non_power_of_two", NULL, "gl_texture_npot", GL_ARB_TEXTURE_NPOT_EXT );
GL_CheckExtension( "GL_ARB_texture_compression", texturecompressionfuncs, "gl_dds_hardware_support", GL_TEXTURE_COMPRESSION_EXT );
GL_CheckExtension( "GL_EXT_texture_edge_clamp", NULL, "gl_clamp_to_edge", GL_CLAMPTOEDGE_EXT );
if( !GL_Support( GL_CLAMPTOEDGE_EXT ))
GL_CheckExtension( "GL_SGIS_texture_edge_clamp", NULL, "gl_clamp_to_edge", GL_CLAMPTOEDGE_EXT );
glConfig.max_texture_anisotropy = 0.0f;
GL_CheckExtension( "GL_EXT_texture_filter_anisotropic", NULL, "gl_ext_anisotropic_filter", GL_ANISOTROPY_EXT );
if( GL_Support( GL_ANISOTROPY_EXT ))
pglGetFloatv( GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &glConfig.max_texture_anisotropy );
#ifdef _WIN32 // Win32 only drivers?
// g-cont. because lodbias it too glitchy on Intel's cards
if( glConfig.hardware_type != GLHW_INTEL )
#endif
GL_CheckExtension( "GL_EXT_texture_lod_bias", NULL, "gl_texture_mipmap_biasing", GL_TEXTURE_LOD_BIAS );
if( GL_Support( GL_TEXTURE_LOD_BIAS ))
pglGetFloatv( GL_MAX_TEXTURE_LOD_BIAS_EXT, &glConfig.max_texture_lod_bias );
GL_CheckExtension( "GL_ARB_texture_border_clamp", NULL, "gl_ext_texborder_clamp", GL_CLAMP_TEXBORDER_EXT );
GL_CheckExtension( "GL_ARB_depth_texture", NULL, "gl_depthtexture", GL_DEPTH_TEXTURE );
GL_CheckExtension( "GL_ARB_texture_float", NULL, "gl_arb_texture_float", GL_ARB_TEXTURE_FLOAT_EXT );
GL_CheckExtension( "GL_ARB_depth_buffer_float", NULL, "gl_arb_depth_float", GL_ARB_DEPTH_FLOAT_EXT );
GL_CheckExtension( "GL_EXT_gpu_shader4", NULL, NULL, GL_EXT_GPU_SHADER4 ); // don't confuse users
GL_CheckExtension( "GL_ARB_shading_language_100", NULL, "gl_glslprogram", GL_SHADER_GLSL100_EXT );
GL_CheckExtension( "GL_ARB_vertex_buffer_object", vbofuncs, "gl_vertex_buffer_object", GL_ARB_VERTEX_BUFFER_OBJECT_EXT );
// rectangle textures support
GL_CheckExtension( "GL_ARB_texture_rectangle", NULL, "gl_texture_rectangle", GL_TEXTURE_2D_RECT_EXT );
// this won't work without extended context
if( glw_state.extended )
GL_CheckExtension( "GL_ARB_debug_output", debugoutputfuncs, "gl_debug_output", GL_DEBUG_OUTPUT );
if( GL_Support( GL_SHADER_GLSL100_EXT ))
{
pglGetIntegerv( GL_MAX_TEXTURE_COORDS_ARB, &glConfig.max_texture_coords );
pglGetIntegerv( GL_MAX_TEXTURE_IMAGE_UNITS_ARB, &glConfig.max_teximage_units );
// check for hardware skinning
pglGetIntegerv( GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB, &glConfig.max_vertex_uniforms );
pglGetIntegerv( GL_MAX_VERTEX_ATTRIBS_ARB, &glConfig.max_vertex_attribs );
#ifdef _WIN32 // Win32 only drivers?
if( glConfig.hardware_type == GLHW_RADEON && glConfig.max_vertex_uniforms > 512 )
glConfig.max_vertex_uniforms /= 4; // radeon returns not correct info
#endif
}
else
{
// just get from multitexturing
glConfig.max_texture_coords = glConfig.max_teximage_units = glConfig.max_texture_units;
}
pglGetIntegerv( GL_MAX_TEXTURE_SIZE, &glConfig.max_2d_texture_size );
if( glConfig.max_2d_texture_size <= 0 ) glConfig.max_2d_texture_size = 256;
if( GL_Support( GL_TEXTURE_2D_RECT_EXT ))
pglGetIntegerv( GL_MAX_RECTANGLE_TEXTURE_SIZE_EXT, &glConfig.max_2d_rectangle_size );
#ifndef XASH_GL_STATIC
// enable gldebug if allowed
if( GL_Support( GL_DEBUG_OUTPUT ))
{
if( gpGlobals->developer )
{
gEngfuncs.Con_Reportf( "Installing GL_DebugOutput...\n");
pglDebugMessageCallbackARB( GL_DebugOutput, NULL );
// force everything to happen in the main thread instead of in a separate driver thread
pglEnable( GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB );
}
// enable all the low priority messages
pglDebugMessageControlARB( GL_DONT_CARE, GL_DONT_CARE, GL_DEBUG_SEVERITY_LOW_ARB, 0, NULL, true );
}
#endif
}
#endif
void GL_InitExtensions( void )
{
// initialize gl extensions
GL_CheckExtension( "OpenGL 1.1.0", opengl_110funcs, NULL, GL_OPENGL_110 );
// get our various GL strings
glConfig.vendor_string = pglGetString( GL_VENDOR );
glConfig.renderer_string = pglGetString( GL_RENDERER );
glConfig.version_string = pglGetString( GL_VERSION );
glConfig.extensions_string = pglGetString( GL_EXTENSIONS );
gEngfuncs.Con_Reportf( "^3Video^7: %s\n", glConfig.renderer_string );
#ifdef XASH_GLES
GL_InitExtensionsGLES();
#else
GL_InitExtensionsBigGL();
#endif
if( GL_Support( GL_TEXTURE_2D_RECT_EXT ))
pglGetIntegerv( GL_MAX_RECTANGLE_TEXTURE_SIZE_EXT, &glConfig.max_2d_rectangle_size );
gEngfuncs.Cvar_Get( "gl_max_size", va( "%i", glConfig.max_2d_texture_size ), 0, "opengl texture max dims" );
gEngfuncs.Cvar_Set( "gl_anisotropy", va( "%f", bound( 0, gl_texture_anisotropy->value, glConfig.max_texture_anisotropy )));
if( GL_Support( GL_TEXTURE_COMPRESSION_EXT ))
gEngfuncs.Image_AddCmdFlags( IL_DDS_HARDWARE );
// MCD has buffering issues
#ifdef _WIN32
if( Q_strstr( glConfig.renderer_string, "gdi" ))
gEngfuncs.Cvar_SetValue( "gl_finish", 1 );
#endif
tr.framecount = tr.visframecount = 1;
glw_state.initialized = true;
}
void GL_ClearExtensions( void )
{
// now all extensions are disabled
memset( glConfig.extension, 0, sizeof( glConfig.extension ));
glw_state.initialized = false;
}
//=======================================================================
/*
=================
GL_InitCommands
=================
*/
void GL_InitCommands( void )
{
r_speeds = gEngfuncs.Cvar_Get( "r_speeds", "0", FCVAR_ARCHIVE, "shows renderer speeds" );
r_fullbright = gEngfuncs.Cvar_Get( "r_fullbright", "0", FCVAR_CHEAT, "disable lightmaps, get fullbright for entities" );
r_norefresh = gEngfuncs.Cvar_Get( "r_norefresh", "0", 0, "disable 3D rendering (use with caution)" );
r_showtree = gEngfuncs.Cvar_Get( "r_showtree", "0", FCVAR_ARCHIVE, "build the graph of visible BSP tree" );
r_lighting_extended = gEngfuncs.Cvar_Get( "r_lighting_extended", "1", FCVAR_ARCHIVE, "allow to get lighting from world and bmodels" );
r_lighting_modulate = gEngfuncs.Cvar_Get( "r_lighting_modulate", "0.6", FCVAR_ARCHIVE, "lightstyles modulate scale" );
r_lighting_ambient = gEngfuncs.Cvar_Get( "r_lighting_ambient", "0.3", FCVAR_ARCHIVE, "map ambient lighting scale" );
r_novis = gEngfuncs.Cvar_Get( "r_novis", "0", 0, "ignore vis information (perfomance test)" );
r_nocull = gEngfuncs.Cvar_Get( "r_nocull", "0", 0, "ignore frustrum culling (perfomance test)" );
r_detailtextures = gEngfuncs.Cvar_Get( "r_detailtextures", "1", FCVAR_ARCHIVE, "enable detail textures support, use '2' for autogenerate detail.txt" );
r_lockpvs = gEngfuncs.Cvar_Get( "r_lockpvs", "0", FCVAR_CHEAT, "lockpvs area at current point (pvs test)" );
r_lockfrustum = gEngfuncs.Cvar_Get( "r_lockfrustum", "0", FCVAR_CHEAT, "lock frustrum area at current point (cull test)" );
r_dynamic = gEngfuncs.Cvar_Get( "r_dynamic", "1", FCVAR_ARCHIVE, "allow dynamic lighting (dlights, lightstyles)" );
r_traceglow = gEngfuncs.Cvar_Get( "r_traceglow", "1", FCVAR_ARCHIVE, "cull flares behind models" );
r_lightmap = gEngfuncs.Cvar_Get( "r_lightmap", "0", FCVAR_CHEAT, "lightmap debugging tool" );
r_drawentities = gEngfuncs.Cvar_Get( "r_drawentities", "1", FCVAR_CHEAT, "render entities" );
r_decals = gEngfuncs.pfnGetCvarPointer( "r_decals", 0 );
r_showhull = gEngfuncs.pfnGetCvarPointer( "r_showhull", 0 );
gl_extensions = gEngfuncs.Cvar_Get( "gl_allow_extensions", "1", FCVAR_GLCONFIG, "allow gl_extensions" );
gl_texture_nearest = gEngfuncs.Cvar_Get( "gl_texture_nearest", "0", FCVAR_ARCHIVE, "disable texture filter" );
gl_lightmap_nearest = gEngfuncs.Cvar_Get( "gl_lightmap_nearest", "0", FCVAR_ARCHIVE, "disable lightmap filter" );
gl_check_errors = gEngfuncs.Cvar_Get( "gl_check_errors", "1", FCVAR_ARCHIVE, "ignore video engine errors" );
gl_vsync = gEngfuncs.pfnGetCvarPointer( "gl_vsync", 0 );
gl_detailscale = gEngfuncs.Cvar_Get( "gl_detailscale", "4.0", FCVAR_ARCHIVE, "default scale applies while auto-generate list of detail textures" );
gl_texture_anisotropy = gEngfuncs.Cvar_Get( "gl_anisotropy", "8", FCVAR_ARCHIVE, "textures anisotropic filter" );
gl_texture_lodbias = gEngfuncs.Cvar_Get( "gl_texture_lodbias", "0.0", FCVAR_ARCHIVE, "LOD bias for mipmapped textures (perfomance|quality)" );
gl_keeptjunctions = gEngfuncs.Cvar_Get( "gl_keeptjunctions", "1", FCVAR_ARCHIVE, "removing tjuncs causes blinking pixels" );
gl_emboss_scale = gEngfuncs.Cvar_Get( "gl_emboss_scale", "0", FCVAR_ARCHIVE|FCVAR_LATCH, "fake bumpmapping scale" );
gl_showtextures = gEngfuncs.pfnGetCvarPointer( "r_showtextures", 0 );
gl_finish = gEngfuncs.Cvar_Get( "gl_finish", "0", FCVAR_ARCHIVE, "use glFinish instead of glFlush" );
gl_nosort = gEngfuncs.Cvar_Get( "gl_nosort", "0", FCVAR_ARCHIVE, "disable sorting of translucent surfaces" );
gl_clear = gEngfuncs.Cvar_Get( "gl_clear", "0", FCVAR_ARCHIVE, "clearing screen after each frame" );
gl_test = gEngfuncs.Cvar_Get( "gl_test", "0", 0, "engine developer cvar for quick testing new features" );
gl_wireframe = gEngfuncs.Cvar_Get( "gl_wireframe", "0", FCVAR_ARCHIVE|FCVAR_SPONLY, "show wireframe overlay" );
gl_msaa = gEngfuncs.Cvar_Get( "gl_msaa", "1", FCVAR_ARCHIVE, "enable or disable multisample anti-aliasing" );
gl_stencilbits = gEngfuncs.Cvar_Get( "gl_stencilbits", "8", FCVAR_GLCONFIG, "pixelformat stencil bits (0 - auto)" );
gl_round_down = gEngfuncs.Cvar_Get( "gl_round_down", "2", FCVAR_RENDERINFO, "round texture sizes to nearest POT value" );
// these cvar not used by engine but some mods requires this
gl_polyoffset = gEngfuncs.Cvar_Get( "gl_polyoffset", "2.0", FCVAR_ARCHIVE, "polygon offset for decals" );
// make sure gl_vsync is checked after vid_restart
SetBits( gl_vsync->flags, FCVAR_CHANGED );
vid_gamma = gEngfuncs.pfnGetCvarPointer( "gamma", 0 );
vid_brightness = gEngfuncs.pfnGetCvarPointer( "brightness", 0 );
tracerred = gEngfuncs.Cvar_Get( "tracerred", "0.8", 0, "tracer red component weight ( 0 - 1.0 )" );
tracergreen = gEngfuncs.Cvar_Get( "tracergreen", "0.8", 0, "tracer green component weight ( 0 - 1.0 )" );
tracerblue = gEngfuncs.Cvar_Get( "tracerblue", "0.4", 0, "tracer blue component weight ( 0 - 1.0 )" );
traceralpha = gEngfuncs.Cvar_Get( "traceralpha", "0.5", 0, "tracer alpha amount ( 0 - 1.0 )" );
cl_lightstyle_lerping = gEngfuncs.pfnGetCvarPointer( "cl_lightstyle_lerping", 0 );
gEngfuncs.Cmd_AddCommand( "r_info", R_RenderInfo_f, "display renderer info" );
gEngfuncs.Cmd_AddCommand( "timerefresh", SCR_TimeRefresh_f, "turn quickly and print rendering statistcs" );
// give initial OpenGL configuration
gEngfuncs.Cbuf_SetOpenGLConfigHack( true );
gEngfuncs.Cbuf_AddText( "exec opengl.cfg\n" );
gEngfuncs.Cbuf_Execute();
gEngfuncs.Cbuf_SetOpenGLConfigHack( false );
// apply actual video mode to window
gEngfuncs.Cbuf_AddText( "exec video.cfg\n" );
gEngfuncs.Cbuf_Execute();
}
/*
===============
R_CheckVBO
register VBO cvars and get default value
===============
*/
static void R_CheckVBO( void )
{
const char *def = "1";
const char *dlightmode = "1";
int flags = FCVAR_ARCHIVE;
qboolean disable = false;
// some bad GLES1 implementations breaks dlights completely
if( glConfig.max_texture_units < 3 )
disable = true;
#ifdef XASH_MOBILE_PLATFORM
// VideoCore4 drivers have a problem with mixing VBO and client arrays
// Disable it, as there is no suitable workaround here
if( Q_stristr( glConfig.renderer_string, "VideoCore IV" ) || Q_stristr( glConfig.renderer_string, "vc4" ) )
disable = true;
// dlightmode 1 is not too much tested on android
// so better to left it off
dlightmode = "0";
#endif
if( disable )
{
// do not keep in config unless dev > 3 and enabled
flags = 0;
def = "0";
}
r_vbo = gEngfuncs.Cvar_Get( "r_vbo", def, flags, "draw world using VBO" );
r_vbo_dlightmode = gEngfuncs.Cvar_Get( "r_vbo_dlightmode", dlightmode, FCVAR_ARCHIVE, "vbo dlight rendering mode(0-1)" );
// check if enabled manually
if( CVAR_TO_BOOL(r_vbo) )
r_vbo->flags |= FCVAR_ARCHIVE;
}
/*
=================
GL_RemoveCommands
=================
*/
void GL_RemoveCommands( void )
{
gEngfuncs.Cmd_RemoveCommand( "r_info" );
}
/*
===============
R_Init
===============
*/
qboolean R_Init( void )
{
if( glw_state.initialized )
return true;
GL_InitCommands();
GL_InitRandomTable();
GL_SetDefaultState();
// create the window and set up the context
if( !gEngfuncs.R_Init_Video( REF_GL )) // request GL context
{
GL_RemoveCommands();
gEngfuncs.R_Free_Video();
gEngfuncs.Host_Error( "Can't initialize video subsystem\nProbably driver was not installed" );
return false;
}
r_temppool = Mem_AllocPool( "Render Zone" );
GL_SetDefaults();
R_CheckVBO();
R_InitImages();
R_SpriteInit();
R_StudioInit();
R_AliasInit();
R_ClearDecals();
R_ClearScene();
return true;
}
/*
===============
R_Shutdown
===============
*/
void R_Shutdown( void )
{
if( !glw_state.initialized )
return;
GL_RemoveCommands();
R_ShutdownImages();
Mem_FreePool( &r_temppool );
// shut down OS specific OpenGL stuff like contexts, etc.
gEngfuncs.R_Free_Video();
}
/*
=================
GL_ErrorString
convert errorcode to string
=================
*/
const char *GL_ErrorString( int err )
{
switch( err )
{
case GL_STACK_OVERFLOW:
return "GL_STACK_OVERFLOW";
case GL_STACK_UNDERFLOW:
return "GL_STACK_UNDERFLOW";
case GL_INVALID_ENUM:
return "GL_INVALID_ENUM";
case GL_INVALID_VALUE:
return "GL_INVALID_VALUE";
case GL_INVALID_OPERATION:
return "GL_INVALID_OPERATION";
case GL_OUT_OF_MEMORY:
return "GL_OUT_OF_MEMORY";
default:
return "UNKNOWN ERROR";
}
}
/*
=================
GL_CheckForErrors
obsolete
=================
*/
void GL_CheckForErrors_( const char *filename, const int fileline )
{
int err;
if( !CVAR_TO_BOOL( gl_check_errors ))
return;
if(( err = pglGetError( )) == GL_NO_ERROR )
return;
gEngfuncs.Con_Printf( S_OPENGL_ERROR "%s (called at %s:%i)\n", GL_ErrorString( err ), filename, fileline );
}
void GL_SetupAttributes( int safegl )
{
int context_flags = 0; // REFTODO!!!!!
int samples = 0;
#ifdef XASH_GLES
gEngfuncs.GL_SetAttribute( REF_GL_CONTEXT_PROFILE_MASK, REF_GL_CONTEXT_PROFILE_ES );
gEngfuncs.GL_SetAttribute( REF_GL_CONTEXT_EGL, 1 );
#ifdef XASH_NANOGL
gEngfuncs.GL_SetAttribute( REF_GL_CONTEXT_MAJOR_VERSION, 1 );
gEngfuncs.GL_SetAttribute( REF_GL_CONTEXT_MINOR_VERSION, 1 );
#elif defined( XASH_WES ) || defined( XASH_REGAL )
gEngfuncs.GL_SetAttribute( REF_GL_CONTEXT_MAJOR_VERSION, 2 );
gEngfuncs.GL_SetAttribute( REF_GL_CONTEXT_MINOR_VERSION, 0 );
#endif
#else // GL1.x
#ifndef XASH_GL_STATIC
if( gEngfuncs.Sys_CheckParm( "-gldebug" ) )
{
gEngfuncs.Con_Reportf( "Creating an extended GL context for debug...\n" );
SetBits( context_flags, FCONTEXT_DEBUG_ARB );
gEngfuncs.GL_SetAttribute( REF_GL_CONTEXT_FLAGS, REF_GL_CONTEXT_DEBUG_FLAG );
glw_state.extended = true;
}
#endif // XASH_GL_STATIC
if( gEngfuncs.Sys_CheckParm( "-glcore" ))
{
SetBits( context_flags, FCONTEXT_CORE_PROFILE );
gEngfuncs.GL_SetAttribute( REF_GL_CONTEXT_PROFILE_MASK, REF_GL_CONTEXT_PROFILE_CORE );
}
else
{
gEngfuncs.GL_SetAttribute( REF_GL_CONTEXT_PROFILE_MASK, REF_GL_CONTEXT_PROFILE_COMPATIBILITY );
}
#endif // XASH_GLES
if( safegl > SAFE_DONTCARE )
{
safegl = -1; // can't retry anymore, can only shutdown engine
return;
}
gEngfuncs.Con_Printf( "Trying safe opengl mode %d\n", safegl );
if( safegl == SAFE_DONTCARE )
return;
gEngfuncs.GL_SetAttribute( REF_GL_DOUBLEBUFFER, 1 );
if( safegl < SAFE_NOACC )
gEngfuncs.GL_SetAttribute( REF_GL_ACCELERATED_VISUAL, 1 );
gEngfuncs.Con_Printf( "bpp %d\n", glw_state.desktopBitsPixel );
if( safegl < SAFE_NOSTENCIL )
gEngfuncs.GL_SetAttribute( REF_GL_STENCIL_SIZE, gl_stencilbits->value );
if( safegl < SAFE_NOALPHA )
gEngfuncs.GL_SetAttribute( REF_GL_ALPHA_SIZE, 8 );
if( safegl < SAFE_NODEPTH )
gEngfuncs.GL_SetAttribute( REF_GL_DEPTH_SIZE, 24 );
else
gEngfuncs.GL_SetAttribute( REF_GL_DEPTH_SIZE, 8 );
if( safegl < SAFE_NOCOLOR )
{
if( glw_state.desktopBitsPixel >= 24 )
{
gEngfuncs.GL_SetAttribute( REF_GL_RED_SIZE, 8 );
gEngfuncs.GL_SetAttribute( REF_GL_GREEN_SIZE, 8 );
gEngfuncs.GL_SetAttribute( REF_GL_BLUE_SIZE, 8 );
}
else if( glw_state.desktopBitsPixel >= 16 )
{
gEngfuncs.GL_SetAttribute( REF_GL_RED_SIZE, 5 );
gEngfuncs.GL_SetAttribute( REF_GL_GREEN_SIZE, 6 );
gEngfuncs.GL_SetAttribute( REF_GL_BLUE_SIZE, 5 );
}
else
{
gEngfuncs.GL_SetAttribute( REF_GL_RED_SIZE, 3 );
gEngfuncs.GL_SetAttribute( REF_GL_GREEN_SIZE, 3 );
gEngfuncs.GL_SetAttribute( REF_GL_BLUE_SIZE, 2 );
}
}
if( safegl < SAFE_NOMSAA )
{
switch( (int)gEngfuncs.pfnGetCvarFloat( "gl_wgl_msaa_samples" ))
{
case 2:
case 4:
case 8:
case 16:
samples = gEngfuncs.pfnGetCvarFloat( "gl_wgl_msaa_samples" );
break;
default:
samples = 0; // don't use, because invalid parameter is passed
}
if( samples )
{
gEngfuncs.GL_SetAttribute( REF_GL_MULTISAMPLEBUFFERS, 1 );
gEngfuncs.GL_SetAttribute( REF_GL_MULTISAMPLESAMPLES, samples );
glConfig.max_multisamples = samples;
}
else
{
gEngfuncs.GL_SetAttribute( REF_GL_MULTISAMPLEBUFFERS, 0 );
gEngfuncs.GL_SetAttribute( REF_GL_MULTISAMPLESAMPLES, 0 );
glConfig.max_multisamples = 0;
}
}
else
{
gEngfuncs.Cvar_Set( "gl_wgl_msaa_samples", "0" );
}
}
void GL_OnContextCreated( void )
{
int colorBits[3];
#ifdef XASH_NANOGL
nanoGL_Init();
#endif
gEngfuncs.GL_GetAttribute( REF_GL_RED_SIZE, &colorBits[0] );
gEngfuncs.GL_GetAttribute( REF_GL_GREEN_SIZE, &colorBits[1] );
gEngfuncs.GL_GetAttribute( REF_GL_BLUE_SIZE, &colorBits[2] );
glConfig.color_bits = colorBits[0] + colorBits[1] + colorBits[2];
gEngfuncs.GL_GetAttribute( REF_GL_ALPHA_SIZE, &glConfig.alpha_bits );
gEngfuncs.GL_GetAttribute( REF_GL_DEPTH_SIZE, &glConfig.depth_bits );
gEngfuncs.GL_GetAttribute( REF_GL_STENCIL_SIZE, &glConfig.stencil_bits );
glState.stencilEnabled = glConfig.stencil_bits ? true : false;
gEngfuncs.GL_GetAttribute( REF_GL_MULTISAMPLESAMPLES, &glConfig.msaasamples );
#ifdef XASH_WES
void wes_init();
wes_init();
#endif
}
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