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