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// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/mesa/MesaLib/src/egl/main/egldriver.h"
#include "third_party/mesa/MesaLib/src/egl/main/eglconfig.h"
#include "third_party/mesa/MesaLib/src/egl/main/eglcontext.h"
#include "third_party/mesa/MesaLib/src/egl/main/egldisplay.h"
#include "third_party/mesa/MesaLib/src/egl/main/eglmisc.h"
#include "third_party/mesa/MesaLib/src/egl/main/eglsurface.h"
/**
* Functions for choosing and opening/loading device drivers.
*/
static _EGLDriver *_eglDriver;
static EGLBoolean _eglLoadDriver() {
assert(!_eglDriver);
_eglDriver = _eglMain(NULL);
return _eglDriver ? EGL_TRUE : EGL_FALSE;
}
/**
* Match a display to a driver. The display is initialized unless use_probe is
* true.
*/
_EGLDriver * _eglMatchDriver(_EGLDisplay *dpy, EGLBoolean use_probe) {
_EGLDriver * drv = NULL;
EGLint major = 0, minor = 0;
if (!_eglDriver && !_eglLoadDriver())
return NULL;
if (use_probe) {
if (_eglDriver->Probe)
_eglDriver->Probe(_eglDriver, dpy);
drv = _eglDriver;
} else {
if (_eglDriver->API.Initialize(_eglDriver, dpy, &major, &minor)) {
drv = _eglDriver;
dpy->Driver = drv;
dpy->Initialized = EGL_TRUE;
dpy->APImajor = major;
dpy->APIminor = minor;
}
}
return drv;
}
__eglMustCastToProperFunctionPointerType _eglGetDriverProc(
const char *procname) {
_EGLProc proc = NULL;
return proc;
}
/**
* Unload all drivers.
*/
void _eglUnloadDrivers(void) {
if (_eglDriver && _eglDriver->Unload)
_eglDriver->Unload(_eglDriver);
_eglDriver = NULL;
}
/**
* Plug all the available fallback routines into the given driver's
* dispatch table.
*/
void _eglInitDriverFallbacks(_EGLDriver *drv) {
/* If a pointer is set to NULL, then the device driver _really_ has
* to implement it.
*/
drv->API.Initialize = NULL;
drv->API.Terminate = NULL;
drv->API.GetConfigs = _eglGetConfigs;
drv->API.ChooseConfig = _eglChooseConfig;
drv->API.GetConfigAttrib = _eglGetConfigAttrib;
drv->API.CreateContext = _eglCreateContext;
drv->API.DestroyContext = _eglDestroyContext;
drv->API.MakeCurrent = _eglMakeCurrent;
drv->API.QueryContext = _eglQueryContext;
drv->API.CreateWindowSurface = _eglCreateWindowSurface;
drv->API.CreatePixmapSurface = _eglCreatePixmapSurface;
drv->API.CreatePbufferSurface = _eglCreatePbufferSurface;
drv->API.DestroySurface = _eglDestroySurface;
drv->API.QuerySurface = _eglQuerySurface;
drv->API.SurfaceAttrib = _eglSurfaceAttrib;
drv->API.BindTexImage = _eglBindTexImage;
drv->API.ReleaseTexImage = _eglReleaseTexImage;
drv->API.SwapInterval = _eglSwapInterval;
drv->API.SwapBuffers = _eglSwapBuffers;
drv->API.CopyBuffers = _eglCopyBuffers;
drv->API.QueryString = _eglQueryString;
drv->API.WaitClient = _eglWaitClient;
drv->API.WaitNative = _eglWaitNative;
}
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