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/**
* Functions related to EGLDisplay.
*/
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include "eglcontext.h"
#include "egldisplay.h"
#include "egldriver.h"
#include "eglglobals.h"
#include "eglhash.h"
#include "eglstring.h"
/**
* Allocate a new _EGLDisplay object for the given nativeDisplay handle.
* We'll also try to determine the device driver name at this time.
*
* Note that nativeDisplay may be an X Display ptr, or a string.
*/
_EGLDisplay *
_eglNewDisplay(NativeDisplayType nativeDisplay)
{
_EGLDisplay *dpy = (_EGLDisplay *) calloc(1, sizeof(_EGLDisplay));
if (dpy) {
EGLuint key = _eglHashGenKey(_eglGlobal.Displays);
dpy->Handle = (EGLDisplay) key;
_eglHashInsert(_eglGlobal.Displays, key, dpy);
dpy->NativeDisplay = nativeDisplay;
#if defined(_EGL_PLATFORM_X)
dpy->Xdpy = (Display *) nativeDisplay;
#endif
dpy->DriverName = _eglChooseDriver(dpy);
if (!dpy->DriverName) {
free(dpy);
return NULL;
}
}
return dpy;
}
/**
* Return the public handle for an internal _EGLDisplay.
* This is the inverse of _eglLookupDisplay().
*/
EGLDisplay
_eglGetDisplayHandle(_EGLDisplay *display)
{
if (display)
return display->Handle;
else
return EGL_NO_DISPLAY;
}
/**
* Return the _EGLDisplay object that corresponds to the given public/
* opaque display handle.
* This is the inverse of _eglGetDisplayHandle().
*/
_EGLDisplay *
_eglLookupDisplay(EGLDisplay dpy)
{
EGLuint key = (EGLuint) dpy;
if (!_eglGlobal.Displays)
return NULL;
return (_EGLDisplay *) _eglHashLookup(_eglGlobal.Displays, key);
}
void
_eglSaveDisplay(_EGLDisplay *dpy)
{
EGLuint key = _eglHashGenKey(_eglGlobal.Displays);
assert(dpy);
assert(!dpy->Handle);
dpy->Handle = (EGLDisplay) key;
assert(dpy->Handle);
_eglHashInsert(_eglGlobal.Displays, key, dpy);
}
_EGLDisplay *
_eglGetCurrentDisplay(void)
{
_EGLContext *ctx = _eglGetCurrentContext();
if (ctx)
return ctx->Display;
else
return NULL;
}
/**
* Free all the data hanging of an _EGLDisplay object, but not
* the object itself.
*/
void
_eglCleanupDisplay(_EGLDisplay *disp)
{
EGLint i;
for (i = 0; i < disp->NumConfigs; i++) {
free(disp->Configs[i]);
}
free(disp->Configs);
disp->Configs = NULL;
/* XXX incomplete */
free((void *) disp->DriverName);
disp->DriverName = NULL;
/* driver deletes the _EGLDisplay object */
}
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