static void
redraw_handler(struct widget *widget, void *data)
{
struct ModeInfo *mi = data;
struct wscreensaver *wscr = mi->priv;
struct rectangle drawarea;
struct rectangle winarea;
struct wl_callback *callback;
int bottom;
mi->swap_buffers = 0;
widget_get_allocation(mi->widget, &drawarea);
window_get_allocation(mi->window, &winarea);
if (display_acquire_window_surface(wscr->display,
mi->window,
mi->eglctx) < 0) {
fprintf(stderr, "%s: unable to acquire window surface",
progname);
return;
}
bottom = winarea.height - (drawarea.height + drawarea.y);
glViewport(drawarea.x, bottom, drawarea.width, drawarea.height);
glScissor(drawarea.x, bottom, drawarea.width, drawarea.height);
glEnable(GL_SCISSOR_TEST);
if (mi->width != drawarea.width || mi->height != drawarea.height) {
mi->width = drawarea.width;
mi->height = drawarea.height;
wscr->plugin->reshape(mi, mi->width, mi->height);
}
wscr->plugin->draw(mi);
if (mi->swap_buffers == 0)
fprintf(stderr, "%s: swapBuffers not called\n", progname);
display_release_window_surface(wscr->display, mi->window);
callback = wl_surface_frame(window_get_wl_surface(mi->window));
wl_callback_add_listener(callback, &listener, mi);
}
static void
redraw_handler(struct widget *widget, void *data)
{
struct rectangle window_allocation;
struct rectangle allocation;
struct wl_callback *callback;
struct gears *gears = data;
widget_get_allocation(gears->widget, &allocation);
window_get_allocation(gears->window, &window_allocation);
if (display_acquire_window_surface(gears->d,
gears->window,
gears->context) < 0) {
die("Unable to acquire window surface, "
"compiled without cairo-egl?\n");
}
glViewport(allocation.x,
window_allocation.height - allocation.height - allocation.y,
allocation.width, allocation.height);
glScissor(allocation.x,
window_allocation.height - allocation.height - allocation.y,
allocation.width, allocation.height);
glEnable(GL_SCISSOR_TEST);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glTranslatef(0.0, 0.0, -50);
glRotatef(gears->view.rotx, 1.0, 0.0, 0.0);
glRotatef(gears->view.roty, 0.0, 1.0, 0.0);
glPushMatrix();
glTranslatef(-3.0, -2.0, 0.0);
glRotatef(gears->angle, 0.0, 0.0, 1.0);
glCallList(gears->gear_list[0]);
glPopMatrix();
glPushMatrix();
glTranslatef(3.1, -2.0, 0.0);
glRotatef(-2.0 * gears->angle - 9.0, 0.0, 0.0, 1.0);
glCallList(gears->gear_list[1]);
glPopMatrix();
glPushMatrix();
glTranslatef(-3.1, 4.2, 0.0);
glRotatef(-2.0 * gears->angle - 25.0, 0.0, 0.0, 1.0);
glCallList(gears->gear_list[2]);
glPopMatrix();
glPopMatrix();
glFlush();
display_release_window_surface(gears->d, gears->window);
callback = wl_surface_frame(window_get_wl_surface(gears->window));
wl_callback_add_listener(callback, &listener, gears);
}