-
/**
* Functions related to EGLDisplay.
*/
#include <stdlib.h>
#include <string.h>
#include "eglcontext.h"
+#include "eglsurface.h"
#include "egldisplay.h"
#include "egldriver.h"
#include "eglglobals.h"
-#include "eglhash.h"
#include "eglstring.h"
+#include "eglmutex.h"
+#include "egllog.h"
+
+
+/**
+ * Finish display management.
+ */
+void
+_eglFiniDisplay(void)
+{
+ _EGLDisplay *dpyList, *dpy;
+
+ /* atexit function is called with global mutex locked */
+ dpyList = _eglGlobal.DisplayList;
+ while (dpyList) {
+ /* pop list head */
+ dpy = dpyList;
+ dpyList = dpyList->Next;
+
+ if (dpy->ContextList || dpy->SurfaceList)
+ _eglLog(_EGL_DEBUG, "Display %p is destroyed with resources", dpy);
+
+ free(dpy);
+ }
+ _eglGlobal.DisplayList = NULL;
+}
/**
{
_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().
+ * Link a display to itself and return the handle of the link.
+ * The handle can be passed to client directly.
*/
EGLDisplay
-_eglGetDisplayHandle(_EGLDisplay *display)
+_eglLinkDisplay(_EGLDisplay *dpy)
{
- if (display)
- return display->Handle;
- else
- return EGL_NO_DISPLAY;
+ _eglLockMutex(_eglGlobal.Mutex);
+
+ dpy->Next = _eglGlobal.DisplayList;
+ _eglGlobal.DisplayList = dpy;
+
+ _eglUnlockMutex(_eglGlobal.Mutex);
+
+ return (EGLDisplay) dpy;
}
-
+
/**
- * Return the _EGLDisplay object that corresponds to the given public/
- * opaque display handle.
- * This is the inverse of _eglGetDisplayHandle().
+ * Unlink a linked display from itself.
+ * Accessing an unlinked display should generate EGL_BAD_DISPLAY error.
*/
-_EGLDisplay *
-_eglLookupDisplay(EGLDisplay dpy)
+void
+_eglUnlinkDisplay(_EGLDisplay *dpy)
{
- EGLuint key = (EGLuint) dpy;
- if (!_eglGlobal.Displays)
- return NULL;
- return (_EGLDisplay *) _eglHashLookup(_eglGlobal.Displays, key);
+ _EGLDisplay *prev;
+
+ _eglLockMutex(_eglGlobal.Mutex);
+
+ prev = _eglGlobal.DisplayList;
+ if (prev != dpy) {
+ while (prev) {
+ if (prev->Next == dpy)
+ break;
+ prev = prev->Next;
+ }
+ assert(prev);
+ prev->Next = dpy->Next;
+ }
+ else {
+ _eglGlobal.DisplayList = dpy->Next;
+ }
+
+ _eglUnlockMutex(_eglGlobal.Mutex);
}
-void
-_eglSaveDisplay(_EGLDisplay *dpy)
+/**
+ * Find the display corresponding to the specified native display id in all
+ * linked displays.
+ */
+_EGLDisplay *
+_eglFindDisplay(NativeDisplayType nativeDisplay)
{
- EGLuint key = _eglHashGenKey(_eglGlobal.Displays);
- assert(dpy);
- assert(!dpy->Handle);
- dpy->Handle = (EGLDisplay) key;
- assert(dpy->Handle);
- _eglHashInsert(_eglGlobal.Displays, key, dpy);
+ _EGLDisplay *dpy;
+
+ _eglLockMutex(_eglGlobal.Mutex);
+
+ dpy = _eglGlobal.DisplayList;
+ while (dpy) {
+ if (dpy->NativeDisplay == nativeDisplay) {
+ _eglUnlockMutex(_eglGlobal.Mutex);
+ return dpy;
+ }
+ dpy = dpy->Next;
+ }
+
+ _eglUnlockMutex(_eglGlobal.Mutex);
+
+ return NULL;
}
-_EGLDisplay *
-_eglGetCurrentDisplay(void)
+/**
+ * Destroy the contexts and surfaces that are linked to the display.
+ */
+void
+_eglReleaseDisplayResources(_EGLDriver *drv, _EGLDisplay *display)
{
- _EGLContext *ctx = _eglGetCurrentContext();
- if (ctx)
- return ctx->Display;
- else
- return NULL;
+ _EGLContext *contexts;
+ _EGLSurface *surfaces;
+
+ contexts = display->ContextList;
+ surfaces = display->SurfaceList;
+
+ while (contexts) {
+ _EGLContext *ctx = contexts;
+ contexts = contexts->Next;
+
+ _eglUnlinkContext(ctx);
+ drv->API.DestroyContext(drv, display, ctx);
+ }
+ assert(!display->ContextList);
+
+ while (surfaces) {
+ _EGLSurface *surf = surfaces;
+ surfaces = surfaces->Next;
+
+ _eglUnlinkSurface(surf);
+ drv->API.DestroySurface(drv, display, surf);
+ }
+ assert(!display->SurfaceList);
}
{
EGLint i;
- for (i = 0; i < disp->NumConfigs; i++) {
- free(disp->Configs[i]);
+ if (disp->Configs) {
+ for (i = 0; i < disp->NumConfigs; i++)
+ free(disp->Configs[i]);
+ free(disp->Configs);
+ disp->Configs = NULL;
+ disp->NumConfigs = 0;
}
- free(disp->Configs);
- disp->Configs = NULL;
/* XXX incomplete */
+}
+
+
+/**
+ * Link a surface to a display and return the handle of the link.
+ * The handle can be passed to client directly.
+ */
+EGLSurface
+_eglLinkSurface(_EGLSurface *surf, _EGLDisplay *dpy)
+{
+ surf->Display = dpy;
+ surf->Next = dpy->SurfaceList;
+ dpy->SurfaceList = surf;
+ return (EGLSurface) surf;
+}
+
+
+/**
+ * Unlink a linked surface from its display.
+ * Accessing an unlinked surface should generate EGL_BAD_SURFACE error.
+ */
+void
+_eglUnlinkSurface(_EGLSurface *surf)
+{
+ _EGLSurface *prev;
+
+ prev = surf->Display->SurfaceList;
+ if (prev != surf) {
+ while (prev) {
+ if (prev->Next == surf)
+ break;
+ prev = prev->Next;
+ }
+ assert(prev);
+ prev->Next = surf->Next;
+ }
+ else {
+ prev = NULL;
+ surf->Display->SurfaceList = surf->Next;
+ }
+
+ surf->Next = NULL;
+ surf->Display = NULL;
+}
- free((void *) disp->DriverName);
- disp->DriverName = NULL;
- /* driver deletes the _EGLDisplay object */
+#ifndef _EGL_SKIP_HANDLE_CHECK
+
+
+/**
+ * Return EGL_TRUE if the given handle is a valid handle to a display.
+ */
+EGLBoolean
+_eglCheckDisplayHandle(EGLDisplay dpy)
+{
+ _EGLDisplay *cur;
+
+ _eglLockMutex(_eglGlobal.Mutex);
+ cur = _eglGlobal.DisplayList;
+ while (cur) {
+ if (cur == (_EGLDisplay *) dpy)
+ break;
+ cur = cur->Next;
+ }
+ _eglUnlockMutex(_eglGlobal.Mutex);
+ return (cur != NULL);
}
+
+
+/**
+ * Return EGL_TRUE if the given handle is a valid handle to a surface.
+ */
+EGLBoolean
+_eglCheckSurfaceHandle(EGLSurface surf, _EGLDisplay *dpy)
+{
+ _EGLSurface *cur = NULL;
+
+ if (dpy)
+ cur = dpy->SurfaceList;
+ while (cur) {
+ if (cur == (_EGLSurface *) surf) {
+ assert(cur->Display == dpy);
+ break;
+ }
+ cur = cur->Next;
+ }
+ return (cur != NULL);
+}
+
+
+#endif /* !_EGL_SKIP_HANDLE_CHECK */
projects / mesa.git / blobdiff