/* Function: al_create_display
*/
ALLEGRO_DISPLAY *al_create_display(int w, int h)
{
ALLEGRO_SYSTEM *system;
ALLEGRO_DISPLAY_INTERFACE *driver;
ALLEGRO_DISPLAY *display;
ALLEGRO_EXTRA_DISPLAY_SETTINGS *eds;
eds = _al_get_new_display_settings();
/* We cannot depend on al_reset_new_display_options() having been called
* anywhere because al_create_display() may be called from new threads.
*/
if (!eds)
al_reset_new_display_options();
else
_al_fill_display_settings(eds);
system = al_get_system_driver();
driver = system->vt->get_display_driver();
display = driver->create_display(w, h);
if (!display) {
ALLEGRO_DEBUG("Failed to create display (NULL)\n");
return NULL;
}
display->vertex_cache = 0;
display->num_cache_vertices = 0;
display->cache_enabled = false;
display->vertex_cache_size = 0;
display->cache_texture = 0;
al_identity_transform(&display->cur_transform);
_al_initialize_blender(&display->cur_blender);
_al_vector_init(&display->bitmaps, sizeof(ALLEGRO_BITMAP*));
al_set_current_display(display);
/* Clear the screen */
#ifndef ALLEGRO_GP2XWIZ
if (display->extra_settings.settings[ALLEGRO_COMPATIBLE_DISPLAY])
al_clear_to_color(al_map_rgb(0, 0, 0));
#else
al_clear_to_color(al_map_rgb(0, 0, 0));
#endif
/* on iphone, don't kill the initial splashscreen */
#ifndef ALLEGRO_IPHONE
al_flip_display();
#endif
/* Clear the backbuffer */
#ifndef ALLEGRO_GP2XWIZ
if (display->extra_settings.settings[ALLEGRO_COMPATIBLE_DISPLAY])
al_clear_to_color(al_map_rgb(0, 0, 0));
#else
al_clear_to_color(al_map_rgb(0, 0, 0));
#endif
#ifndef ALLEGRO_IPHONE
al_flip_display();
#endif
al_set_window_title(al_get_appname());
return display;
}
/* Function: al_create_display
*/
ALLEGRO_DISPLAY *al_create_display(int w, int h)
{
ALLEGRO_SYSTEM *system;
ALLEGRO_DISPLAY_INTERFACE *driver;
ALLEGRO_DISPLAY *display;
ALLEGRO_EXTRA_DISPLAY_SETTINGS *settings;
int flags;
system = al_get_system_driver();
driver = system->vt->get_display_driver();
if (!driver) {
ALLEGRO_ERROR("Failed to create display (no display driver)\n");
return NULL;
}
display = driver->create_display(w, h);
if (!display) {
ALLEGRO_ERROR("Failed to create display (NULL)\n");
return NULL;
}
ASSERT(display->vt);
settings = &display->extra_settings;
flags = settings->required | settings->suggested;
if (!(flags & (1 << ALLEGRO_AUTO_CONVERT_BITMAPS))) {
settings->settings[ALLEGRO_AUTO_CONVERT_BITMAPS] = 1;
}
display->min_w = 0;
display->min_h = 0;
display->max_w = 0;
display->max_h = 0;
display->use_constraints = false;
display->vertex_cache = 0;
display->num_cache_vertices = 0;
display->cache_enabled = false;
display->vertex_cache_size = 0;
display->cache_texture = 0;
al_identity_transform(&display->projview_transform);
display->default_shader = NULL;
_al_vector_init(&display->display_invalidated_callbacks, sizeof(void *));
_al_vector_init(&display->display_validated_callbacks, sizeof(void *));
display->render_state.write_mask = ALLEGRO_MASK_RGBA | ALLEGRO_MASK_DEPTH;
display->render_state.depth_test = false;
display->render_state.depth_function = ALLEGRO_RENDER_LESS;
display->render_state.alpha_test = false;
display->render_state.alpha_function = ALLEGRO_RENDER_ALWAYS;
display->render_state.alpha_test_value = 0;
_al_vector_init(&display->bitmaps, sizeof(ALLEGRO_BITMAP*));
if (settings->settings[ALLEGRO_COMPATIBLE_DISPLAY]) {
al_set_target_bitmap(al_get_backbuffer(display));
}
else {
ALLEGRO_DEBUG("ALLEGRO_COMPATIBLE_DISPLAY not set\n");
_al_set_current_display_only(display);
}
if (display->flags & ALLEGRO_PROGRAMMABLE_PIPELINE) {
display->default_shader = _al_create_default_shader(display->flags);
if (!display->default_shader) {
al_destroy_display(display);
return NULL;
}
al_use_shader(display->default_shader);
}
/* Clear the screen */
if (settings->settings[ALLEGRO_COMPATIBLE_DISPLAY]) {
al_clear_to_color(al_map_rgb(0, 0, 0));
/* TODO:
* on iphone, don't kill the initial splashscreen - in fact, it's also
* annoying in linux to have an extra black frame as first frame and I
* suppose we never really want it
*/
#if 0
al_flip_display();
#endif
}
if (settings->settings[ALLEGRO_AUTO_CONVERT_BITMAPS]) {
/* We convert video bitmaps to memory bitmaps when the display is
* destroyed, so seems only fair to re-convertt hem when the
* display is re-created again.
*/
al_convert_memory_bitmaps();
}
return display;
}
