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/**************************************************************************
*
* Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* 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, sub license, 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 NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.
*
**************************************************************************/
/**
* Small/misc EGL functions
*/
#include <assert.h>
#include <string.h>
#include "eglglobals.h"
#include "eglmisc.h"
/**
* Examine the individual extension enable/disable flags and recompute
* the driver's Extensions string.
*/
static void
_eglUpdateExtensionsString(_EGLDriver *drv)
{
drv->Extensions.String[0] = 0;
if (drv->Extensions.MESA_screen_surface)
strcat(drv->Extensions.String, "EGL_MESA_screen_surface ");
if (drv->Extensions.MESA_copy_context)
strcat(drv->Extensions.String, "EGL_MESA_copy_context ");
assert(strlen(drv->Extensions.String) < _EGL_MAX_EXTENSIONS_LEN);
}
const char *
_eglQueryString(_EGLDriver *drv, EGLDisplay dpy, EGLint name)
{
(void) drv;
(void) dpy;
switch (name) {
case EGL_VENDOR:
return _EGL_VENDOR_STRING;
case EGL_VERSION:
return drv->Version;
case EGL_EXTENSIONS:
_eglUpdateExtensionsString(drv);
return drv->Extensions.String;
#ifdef EGL_VERSION_1_2
case EGL_CLIENT_APIS:
/* XXX need to initialize somewhere */
return drv->ClientAPIs;
#endif
default:
_eglError(EGL_BAD_PARAMETER, "eglQueryString");
return NULL;
}
}
EGLBoolean
_eglWaitGL(_EGLDriver *drv, EGLDisplay dpy)
{
/* just a placeholder */
(void) drv;
(void) dpy;
return EGL_TRUE;
}
EGLBoolean
_eglWaitNative(_EGLDriver *drv, EGLDisplay dpy, EGLint engine)
{
/* just a placeholder */
(void) drv;
(void) dpy;
switch (engine) {
case EGL_CORE_NATIVE_ENGINE:
break;
default:
_eglError(EGL_BAD_PARAMETER, "eglWaitNative(engine)");
return EGL_FALSE;
}
return EGL_TRUE;
}
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