From aaa1253b09a6a38e7fcd695aa36e89b9d4bd8dfe Mon Sep 17 00:00:00 2001 From: Chia-I Wu Date: Wed, 30 Sep 2009 15:08:34 +0800 Subject: egl: Update comments about eglapi.c. Mention that opaque handles are looked up and checked. Signed-off-by: Chia-I Wu --- src/egl/main/eglapi.c | 25 ++++++++++++++++++++----- 1 file changed, 20 insertions(+), 5 deletions(-) (limited to 'src/egl/main/eglapi.c') diff --git a/src/egl/main/eglapi.c b/src/egl/main/eglapi.c index 1512c0a14e..1d370db471 100644 --- a/src/egl/main/eglapi.c +++ b/src/egl/main/eglapi.c @@ -9,12 +9,27 @@ * heterogeneous hardware devices in the future. * * The EGLDisplay, EGLConfig, EGLContext and EGLSurface types are - * opaque handles implemented with 32-bit unsigned integers. - * It's up to the driver function or fallback function to look up the - * handle and get an object. - * By using opaque handles, we leave open the possibility of having - * indirect rendering in the future, like GLX. + * opaque handles. Internal objects are linked to a display to + * create the handles. * + * For each public API entry point, the opaque handles are looked up + * before being dispatched to the drivers. When it fails to look up + * a handle, one of + * + * EGL_BAD_DISPLAY + * EGL_BAD_CONFIG + * EGL_BAD_CONTEXT + * EGL_BAD_SURFACE + * EGL_BAD_SCREEN_MESA + * EGL_BAD_MODE_MESA + * + * is generated and the driver function is not called. An + * uninitialized EGLDisplay has no driver associated with it. When + * such display is detected, + * + * EGL_NOT_INITIALIZED + * + * is generated. * * Notes on naming conventions: * -- cgit v1.2.3