static int _s52_draw_cb (gpointer user_data)
// return TRUE for the signal to be called again
{
s52engine *engine = (s52engine*)user_data;
//g_print("s52egl:_s52_draw_cb(): begin .. \n");
if (NULL == engine) {
g_print("_s52_draw_cb(): no engine ..\n");
goto exit;
}
// wait for libS52 to init - no use to go further - bailout
if (TRUE == engine->do_S52init) {
g_print("s52egl:_s52_draw_cb(): re-starting .. waiting for S52_init() to finish\n");
goto exit;
}
if ((NULL==engine->eglDisplay) || (EGL_NO_DISPLAY==engine->eglDisplay)) {
g_print("_s52_draw_cb(): no display ..\n");
goto exit;
}
// no draw at all, the window is not visible
if ((FALSE==engine->do_S52draw) && (FALSE==engine->do_S52drawLast)) {
//g_print("s52egl:_s52_draw_cb(): nothing to draw (do_S52draw & do_S52drawLast FALSE)\n");
goto exit;
}
#ifndef S52_USE_EGL
_egl_beg(engine);
#endif
// draw background
if (TRUE == engine->do_S52draw) {
if (TRUE == engine->do_S52setViewPort) {
eglQuerySurface(engine->eglDisplay, engine->eglSurface, EGL_WIDTH, &engine->width);
eglQuerySurface(engine->eglDisplay, engine->eglSurface, EGL_HEIGHT, &engine->height);
S52_setViewPort(0, 0, engine->width, engine->height);
engine->do_S52setViewPort = FALSE;
}
S52_draw();
engine->do_S52draw = FALSE;
}
// draw AIS
if (TRUE == engine->do_S52drawLast) {
#ifdef USE_FAKE_AIS
_s52_updTimeTag(engine);
#endif
S52_drawLast();
}
#ifndef S52_USE_EGL
_egl_end(engine);
#endif
exit:
// debug
//g_print("s52egl:_s52_draw_cb(): end .. \n");
return EGL_TRUE;
}
static int _s52_draw_cb(GtkWidget *widget,
GdkEventExpose *event,
gpointer user_data)
// return TRUE for the signal to be called again
{
(void)widget;
(void)event;
struct s52engine *engine = (struct s52engine*)user_data;
//g_print("s52egl:_s52_draw_cb(): begin .. \n");
/*
GTimeVal now; // 2 glong (at least 32 bits each - but amd64 !?
g_get_current_time(&now);
if (0 == (now.tv_sec - engine->timeLastDraw.tv_sec))
goto exit;
//*/
if (NULL == engine) {
g_print("_s52_draw_cb(): no engine ..\n");
goto exit;
}
if ((NULL==engine->eglDisplay) || (EGL_NO_DISPLAY==engine->eglDisplay)) {
g_print("_s52_draw_cb(): no display ..\n");
goto exit;
}
// wait for libS52 to init - no use to go further - bailout
if (TRUE == engine->state.do_S52init) {
g_print("s52egl:_s52_draw_cb(): re-starting .. waiting for S52_init() to finish\n");
goto exit;
}
// no draw at all, the window is not visible
if ((FALSE==engine->do_S52draw) && (FALSE==engine->do_S52drawLast)) {
//g_print("s52egl:_s52_draw_cb(): nothing to draw (do_S52draw & do_S52drawLast FALSE)\n");
goto exit;
}
#if !defined(S52_USE_EGL)
_egl_beg(engine, "test");
#endif
// draw background
if (TRUE == engine->do_S52draw) {
if (TRUE == engine->do_S52setViewPort) {
eglQuerySurface(engine->eglDisplay, engine->eglSurface, EGL_WIDTH, &engine->width);
eglQuerySurface(engine->eglDisplay, engine->eglSurface, EGL_HEIGHT, &engine->height);
S52_setViewPort(0, 0, engine->width, engine->height);
engine->do_S52setViewPort = FALSE;
}
S52_draw();
engine->do_S52draw = FALSE;
}
// draw AIS
if (TRUE == engine->do_S52drawLast) {
#ifdef USE_FAKE_AIS
_s52_updTimeTag(engine);
#endif
S52_drawLast();
}
#if !defined(S52_USE_EGL)
_egl_end(engine);
#endif
exit:
// debug
//g_print("s52egl:_s52_draw_cb(): end .. \n");
return EGL_TRUE;
}