} egl_platforms[_EGL_NUM_PLATFORMS] = {
{ _EGL_PLATFORM_WINDOWS, "gdi" },
{ _EGL_PLATFORM_X11, "x11" },
- { _EGL_PLATFORM_DRM, "kms" },
+ { _EGL_PLATFORM_DRM, "drm" },
{ _EGL_PLATFORM_FBDEV, "fbdev" }
};
_EGLPlatformType plat = _EGL_INVALID_PLATFORM;
/**
- * Link a resource to a display.
+ * Initialize a display resource.
*/
void
-_eglLinkResource(_EGLResource *res, _EGLResourceType type, _EGLDisplay *dpy)
+_eglInitResource(_EGLResource *res, EGLint size, _EGLDisplay *dpy)
{
- assert(!res->Display || res->Display == dpy);
-
+ memset(res, 0, size);
res->Display = dpy;
+ res->RefCount = 1;
+}
+
+
+/**
+ * Increment reference count for the resource.
+ */
+void
+_eglGetResource(_EGLResource *res)
+{
+ assert(res && res->RefCount > 0);
+ /* hopefully a resource is always manipulated with its display locked */
+ res->RefCount++;
+}
+
+
+/**
+ * Decrement reference count for the resource.
+ */
+EGLBoolean
+_eglPutResource(_EGLResource *res)
+{
+ assert(res && res->RefCount > 0);
+ res->RefCount--;
+ return (!res->RefCount);
+}
+
+
+/**
+ * Link a resource to its display.
+ */
+void
+_eglLinkResource(_EGLResource *res, _EGLResourceType type)
+{
+ assert(res->Display);
+
res->IsLinked = EGL_TRUE;
- res->Next = dpy->ResourceLists[type];
- dpy->ResourceLists[type] = res;
+ res->Next = res->Display->ResourceLists[type];
+ res->Display->ResourceLists[type] = res;
+ _eglGetResource(res);
}
}
res->Next = NULL;
- /* do not reset res->Display */
res->IsLinked = EGL_FALSE;
+ _eglPutResource(res);
+
+ /* We always unlink before destroy. The driver still owns a reference */
+ assert(res->RefCount);
}