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xash3d-fwgs/ref_gl/gl_opengl.c
Gleb Mazovetskiy 5e0a0765ce Trim all trailing whitespace 
The `.editorconfig` file in this repo is configured to trim all trailing
whitespace regardless of whether the line is modified.

Trims all trailing whitespace in the repository to make the codebase easier
to work with in editors that respect `.editorconfig`.

`git blame` becomes less useful on these lines but it already isn't very useful.

Commands:

```
find . -type f -name '*.h' -exec sed --in-place 's/[[:space:]]\+$//' {} \+
find . -type f -name '*.c' -exec sed --in-place 's/[[:space:]]\+$//' {} \+
```
2021-01-04 20:55:10 +03:00

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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_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;
#ifdef XASH_GL_STATIC
#define GL_CALL( x ) #x, NULL
#else
#define GL_CALL( x ) #x, (void**)&p##x
#endif
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 }
};
static dllfunc_t drawrangeelementsfuncs[] =
{
{ GL_CALL( glDrawRangeElements ) },
{ NULL, NULL }
};
static dllfunc_t drawrangeelementsextfuncs[] =
{
{ GL_CALL( glDrawRangeElementsEXT ) },
{ 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
=================
*/
qboolean 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 false; // 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 false;
}
#ifndef XASH_GL_STATIC
// clear exports
for( func = funcs; func && func->name; func++ )
*func->func = NULL;
for( func = funcs; func && func->name; 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
}
#endif
if( GL_Support( r_ext ))
{
gEngfuncs.Con_Reportf( "- ^2enabled\n" );
return true;
}
gEngfuncs.Con_Reportf( "- ^1failed\n" );
return false;
}
/*
==============
GL_GetProcAddress
defined just for nanogl/glwes, so it don't link to SDL2 directly, nor use dlsym
==============
*/
void GAME_EXPORT *GL_GetProcAddress( const char *name )
{
return gEngfuncs.GL_GetProcAddress( name );
}
/*
===============
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 );
if( glConfig.wrapper == GLES_WRAPPER_GL4ES )
{
const char *vendor = pglGetString( GL_VENDOR | 0x10000 );
const char *renderer = pglGetString( GL_RENDERER | 0x10000 );
const char *version = pglGetString( GL_VERSION | 0x10000 );
const char *extensions = pglGetString( GL_EXTENSIONS | 0x10000 );
if( vendor )
gEngfuncs.Con_Printf( "GL4ES_VENDOR: %s\n", vendor );
if( renderer )
gEngfuncs.Con_Printf( "GL4ES_RENDERER: %s\n", renderer );
if( version )
gEngfuncs.Con_Printf( "GL4ES_VERSION: %s\n", version );
if( extensions )
gEngfuncs.Con_Reportf( "GL4ES_EXTENSIONS: %s\n", extensions );
}
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 )
{
int extid;
// 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;
#else
#error "unknown gles wrapper"
#endif
glConfig.hardware_type = GLHW_GENERIC;
for( extid = GL_OPENGL_110 + 1; extid < GL_EXTCOUNT; extid++ )
{
switch( extid )
{
case GL_ARB_VERTEX_BUFFER_OBJECT_EXT:
GL_SetExtension( extid, true );
break;
case GL_ARB_MULTITEXTURE:
GL_SetExtension( extid, true ); // required to be supported by wrapper
pglGetIntegerv( GL_MAX_TEXTURE_UNITS_ARB, &glConfig.max_texture_units );
if( glConfig.max_texture_units <= 1 )
{
GL_SetExtension( extid, false );
glConfig.max_texture_units = 1;
}
glConfig.max_texture_coords = glConfig.max_teximage_units = glConfig.max_texture_units;
break;
case GL_TEXTURE_CUBEMAP_EXT:
if( GL_CheckExtension( "GL_OES_texture_cube_map", NULL, "gl_texture_cubemap", extid ))
pglGetIntegerv( GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB, &glConfig.max_cubemap_size );
break;
case GL_ANISOTROPY_EXT:
glConfig.max_texture_anisotropy = 0.0f;
if( GL_CheckExtension( "GL_EXT_texture_filter_anisotropic", NULL, "gl_ext_anisotropic_filter", extid ))
pglGetFloatv( GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &glConfig.max_texture_anisotropy );
break;
case GL_TEXTURE_LOD_BIAS:
if( GL_CheckExtension( "GL_EXT_texture_lod_bias", NULL, "gl_texture_mipmap_biasing", extid ))
pglGetFloatv( GL_MAX_TEXTURE_LOD_BIAS_EXT, &glConfig.max_texture_lod_bias );
break;
case GL_ARB_TEXTURE_NPOT_EXT:
GL_CheckExtension( "GL_OES_texture_npot", NULL, "gl_texture_npot", extid );
break;
case GL_DEBUG_OUTPUT:
if( glw_state.extended )
GL_CheckExtension( "GL_KHR_debug", NULL, NULL, extid );
break;
// case GL_TEXTURE_COMPRESSION_EXT: NOPE
// case GL_SHADER_GLSL100_EXT: NOPE
// case GL_TEXTURE_2D_RECT_EXT: NOPE
// case GL_TEXTURE_ARRAY_EXT: NOPE
// case GL_TEXTURE_3D_EXT: NOPE
// case GL_CLAMPTOEDGE_EXT: NOPE
// case GL_CLAMP_TEXBORDER_EXT: NOPE
// case GL_ARB_TEXTURE_FLOAT_EXT: NOPE
// case GL_ARB_DEPTH_FLOAT_EXT: NOPE
// case GL_ARB_SEAMLESS_CUBEMAP: NOPE
// case GL_EXT_GPU_SHADER4: NOPE
// case GL_DEPTH_TEXTURE: NOPE
// case GL_DRAWRANGEELEMENTS_EXT: NOPE
default:
GL_SetExtension( extid, false );
}
}
}
#else
void GL_InitExtensionsBigGL( void )
{
// 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;
// gl4es may be used system-wide
if( Q_stristr( glConfig.renderer_string, "gl4es" ))
{
const char *vendor = pglGetString( GL_VENDOR | 0x10000 );
const char *renderer = pglGetString( GL_RENDERER | 0x10000 );
const char *version = pglGetString( GL_VERSION | 0x10000 );
const char *extensions = pglGetString( GL_EXTENSIONS | 0x10000 );
glConfig.wrapper = GLES_WRAPPER_GL4ES;
}
// multitexture
glConfig.max_texture_units = glConfig.max_texture_coords = glConfig.max_teximage_units = 1;
if( GL_CheckExtension( "GL_ARB_multitexture", multitexturefuncs, "gl_arb_multitexture", 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
if( GL_CheckExtension( "GL_EXT_texture3D", texture3dextfuncs, "gl_texture_3d", 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
if( GL_CheckExtension( "GL_EXT_texture_array", texture3dextfuncs, "gl_texture_2d_array", GL_TEXTURE_ARRAY_EXT ))
pglGetIntegerv( GL_MAX_ARRAY_TEXTURE_LAYERS_EXT, &glConfig.max_2d_texture_layers );
// cubemaps support
if( GL_CheckExtension( "GL_ARB_texture_cube_map", NULL, "gl_texture_cubemap", 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_texture_dxt_compression", GL_TEXTURE_COMPRESSION_EXT );
if( !GL_CheckExtension( "GL_EXT_texture_edge_clamp", NULL, "gl_clamp_to_edge", GL_CLAMPTOEDGE_EXT ))
GL_CheckExtension( "GL_SGIS_texture_edge_clamp", NULL, "gl_clamp_to_edge", GL_CLAMPTOEDGE_EXT );
glConfig.max_texture_anisotropy = 0.0f;
if( GL_CheckExtension( "GL_EXT_texture_filter_anisotropic", NULL, "gl_texture_anisotropic_filter", GL_ANISOTROPY_EXT ))
pglGetFloatv( GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &glConfig.max_texture_anisotropy );
#if XASH_WIN32 // Win32 only drivers?
// g-cont. because lodbias it too glitchy on Intel's cards
if( glConfig.hardware_type != GLHW_INTEL )
#endif
{
if( GL_CheckExtension( "GL_EXT_texture_lod_bias", NULL, "gl_texture_mipmap_biasing", GL_TEXTURE_LOD_BIAS ))
pglGetFloatv( GL_MAX_TEXTURE_LOD_BIAS_EXT, &glConfig.max_texture_lod_bias );
}
GL_CheckExtension( "GL_ARB_texture_border_clamp", NULL, NULL, GL_CLAMP_TEXBORDER_EXT );
GL_CheckExtension( "GL_ARB_depth_texture", NULL, NULL, GL_DEPTH_TEXTURE );
GL_CheckExtension( "GL_ARB_texture_float", NULL, "gl_texture_float", GL_ARB_TEXTURE_FLOAT_EXT );
GL_CheckExtension( "GL_ARB_depth_buffer_float", NULL, "gl_texture_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_vertex_buffer_object", vbofuncs, "gl_vertex_buffer_object", GL_ARB_VERTEX_BUFFER_OBJECT_EXT );
if( GL_CheckExtension( "GL_ARB_shading_language_100", NULL, NULL, 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 );
#if XASH_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;
}
// rectangle textures support
GL_CheckExtension( "GL_ARB_texture_rectangle", NULL, "gl_texture_rectangle", GL_TEXTURE_2D_RECT_EXT );
if( !GL_CheckExtension( "glDrawRangeElements", drawrangeelementsfuncs, "gl_drawrangeelements", GL_DRAW_RANGEELEMENTS_EXT ) )
{
if( GL_CheckExtension( "glDrawRangeElementsEXT", drawrangeelementsextfuncs,
"gl_drawrangelements", GL_DRAW_RANGEELEMENTS_EXT ) )
{
#ifndef XASH_GL_STATIC
pglDrawRangeElements = pglDrawRangeElementsEXT;
#endif
}
}
// this won't work without extended context
if( glw_state.extended )
GL_CheckExtension( "GL_ARB_debug_output", debugoutputfuncs, "gl_debug_output", GL_DEBUG_OUTPUT );
}
#endif
void GL_InitExtensions( void )
{
GL_OnContextCreated();
// initialize gl extensions
GL_CheckExtension( "OpenGL 1.1.0", opengl_110funcs, NULL, GL_OPENGL_110 );
// get our various GL strings
glConfig.vendor_string = (const char *)pglGetString( GL_VENDOR );
glConfig.renderer_string = (const char *)pglGetString( GL_RENDERER );
glConfig.version_string = (const char *)pglGetString( GL_VERSION );
glConfig.extensions_string = (const char *)pglGetString( GL_EXTENSIONS );
gEngfuncs.Con_Reportf( "^3Video^7: %s\n", glConfig.renderer_string );
#ifdef XASH_GLES
GL_InitExtensionsGLES();
#else
GL_InitExtensionsBigGL();
#endif
pglGetIntegerv( GL_MAX_TEXTURE_SIZE, &glConfig.max_2d_texture_size );
if( glConfig.max_2d_texture_size <= 0 ) glConfig.max_2d_texture_size = 256;
#ifndef XASH_GL4ES
// 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
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
#if XASH_WIN32
if( Q_strstr( glConfig.renderer_string, "gdi" ))
gEngfuncs.Cvar_SetValue( "gl_finish", 1 );
#endif
R_RenderInfo_f();
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_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.pfnGetCvarPointer( "gl_clear", 0 );
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_GLCONFIG, "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" );
}
/*
===============
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();
// Why? Host_Error again???
// 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
#elif defined XASH_GL4ES
gEngfuncs.GL_SetAttribute( REF_GL_CONTEXT_PROFILE_MASK, REF_GL_CONTEXT_PROFILE_ES );
gEngfuncs.GL_SetAttribute( REF_GL_CONTEXT_EGL, 1 );
gEngfuncs.GL_SetAttribute( REF_GL_CONTEXT_MAJOR_VERSION, 2 );
gEngfuncs.GL_SetAttribute( REF_GL_CONTEXT_MINOR_VERSION, 0 );
#else // GL1.x
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( 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;
}
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", gpGlobals->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( gpGlobals->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( gpGlobals->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 wes_init( const char *gles2 );
int nanoGL_Init( void );
#ifdef XASH_GL4ES
#include "gl4es/include/gl4esinit.h"
#include "gl4es/include/gl4eshint.h"
void GL4ES_GetMainFBSize( int *width, int *height )
{
*width = gpGlobals->width;
*height = gpGlobals->height;
}
void *GL4ES_GetProcAddress( const char *name )
{
if( !Q_strcmp(name, "glShadeModel") )
// combined gles/gles2/gl implementation exports this, but it is invalid
return NULL;
return gEngfuncs.GL_GetProcAddress( name );
}
#endif
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
wes_init( "" );
#endif
#ifdef XASH_GL4ES
set_getprocaddress( GL4ES_GetProcAddress );
set_getmainfbsize( GL4ES_GetMainFBSize );
initialize_gl4es();
// merge glBegin/glEnd in beams and console
pglHint( GL_BEGINEND_HINT_GL4ES, 1 );
// dxt unpacked to 16-bit looks ugly
pglHint( GL_AVOID16BITS_HINT_GL4ES, 1 );
#endif
}
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