/************************************************************************** * * 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" #include "egldisplay.h" /** * Examine the individual extension enable/disable flags and recompute * the driver's Extensions string. */ static void _eglUpdateExtensionsString(_EGLDisplay *dpy) { char *exts = dpy->Extensions.String; if (exts[0]) return; if (dpy->Extensions.MESA_screen_surface) strcat(exts, "EGL_MESA_screen_surface "); if (dpy->Extensions.MESA_copy_context) strcat(exts, "EGL_MESA_copy_context "); assert(strlen(exts) < _EGL_MAX_EXTENSIONS_LEN); } static void _eglUpdateAPIsString(_EGLDisplay *dpy) { char *apis = dpy->ClientAPIs; if (apis[0] || !dpy->ClientAPIsMask) return; if (dpy->ClientAPIsMask & EGL_OPENGL_BIT) strcat(apis, "OpenGL "); if (dpy->ClientAPIsMask & EGL_OPENGL_ES_BIT) strcat(apis, "OpenGL_ES "); if (dpy->ClientAPIsMask & EGL_OPENGL_ES2_BIT) strcat(apis, "OpenGL_ES2 "); if (dpy->ClientAPIsMask & EGL_OPENVG_BIT) strcat(apis, "OpenVG "); assert(strlen(apis) < sizeof(dpy->ClientAPIs)); } 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 dpy->Version; case EGL_EXTENSIONS: _eglUpdateExtensionsString(dpy); return dpy->Extensions.String; #ifdef EGL_VERSION_1_2 case EGL_CLIENT_APIS: _eglUpdateAPIsString(dpy); return dpy->ClientAPIs; #endif default: _eglError(EGL_BAD_PARAMETER, "eglQueryString"); return NULL; } } EGLBoolean _eglWaitClient(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx) { /* just a placeholder */ (void) drv; (void) dpy; (void) ctx; 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; }