/*
* Copyright © 2013 Intel Corporation
*
* Permission is hereby granted , free of charge , to any person obtaining a
* copy of this software and associated documentation files ( the " Software " ) ,
* to deal in the Software without restriction , including without limitation
* the rights to use , copy , modify , merge , publish , distribute , sublicense ,
* and / or sell copies of the Software , and to permit persons to whom the
* Software is furnished to do so , subject to the following conditions :
*
* The above copyright notice and this permission notice ( including the next
* paragraph ) shall be included in all copies or substantial portions of the
* Software .
*
* THE SOFTWARE IS PROVIDED " AS IS " , WITHOUT WARRANTY OF ANY KIND , EXPRESS OR
* IMPLIED , INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY ,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT . IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM , DAMAGES OR OTHER
* LIABILITY , WHETHER IN AN ACTION OF CONTRACT , TORT OR OTHERWISE , ARISING
* FROM , OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE .
*/
#include <assert.h>
#include <string.h>
#include <stdio.h>
#include "dispatch_common.h"
int
epoxy_conservative_egl_version(void )
{
EGLDisplay dpy = eglGetCurrentDisplay();
if (!dpy)
return 14 ;
return epoxy_egl_version(dpy);
}
/**
* @ brief Returns the version of OpenGL we are using
*
* The version is encoded as :
*
* ` ` `
*
* version = major * 10 + minor
*
* ` ` `
*
* So it can be easily used for version comparisons .
*
* @ param The EGL display
*
* @ return The encoded version of EGL we are using
*
* @ see epoxy_gl_version ( )
*/
int
epoxy_egl_version(EGLDisplay dpy)
{
int major, minor;
const char *version_string;
int ret;
version_string = eglQueryString(dpy, EGL_VERSION);
if (!version_string)
return 0 ;
ret = sscanf(version_string, "%d.%d" , &major, &minor);
assert(ret == 2 );
return major * 10 + minor;
}
bool
epoxy_conservative_has_egl_extension(const char *ext)
{
return epoxy_has_egl_extension(eglGetCurrentDisplay(), ext);
}
/**
* @ brief Returns true if the given EGL extension is supported in the current context .
*
* @ param dpy The EGL display
* @ param extension The name of the EGL extension
*
* @ return ` true ` if the extension is available
*
* @ see epoxy_has_gl_extension ( )
* @ see epoxy_has_glx_extension ( )
*/
bool
epoxy_has_egl_extension(EGLDisplay dpy, const char *ext)
{
return epoxy_extension_in_string(eglQueryString(dpy, EGL_EXTENSIONS), ext) || epoxy_extension_in_string(eglQueryString(NULL, EGL_EXTENSIONS), ext);
}
/**
* @ brief Checks whether EGL is available .
*
* @ return ` true ` if EGL is available
*
* @ newin { 1 , 4 }
*/
bool
epoxy_has_egl(void )
{
#if !PLATFORM_HAS_EGL
return false ;
#else
if (epoxy_load_egl(false , true )) {
EGLDisplay* (* pf_eglGetCurrentDisplay) (void );
pf_eglGetCurrentDisplay = epoxy_conservative_egl_dlsym("eglGetCurrentDisplay" , false );
if (pf_eglGetCurrentDisplay)
return true ;
}
return false ;
#endif /* PLATFORM_HAS_EGL */
}
Messung V0.5 in Prozent C=97 H=100 G=98
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-09-30)
¤
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