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expedite/src/bin/engine_software_xcb.c

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#include "main.h"
#include <xcb/xcb.h>
#include <xcb/xcb_keysyms.h>
#include <Evas_Engine_Software_X11.h>
#define XK_MISCELLANY
#include <X11/keysymdef.h>
enum {
XCB_SIZE_US_POSITION_HINT = 1 << 0,
XCB_SIZE_US_SIZE_HINT = 1 << 1,
XCB_SIZE_P_POSITION_HINT = 1 << 2,
XCB_SIZE_P_SIZE_HINT = 1 << 3,
XCB_SIZE_P_MIN_SIZE_HINT = 1 << 4,
XCB_SIZE_P_MAX_SIZE_HINT = 1 << 5,
XCB_SIZE_P_RESIZE_INC_HINT = 1 << 6,
XCB_SIZE_P_ASPECT_HINT = 1 << 7,
XCB_SIZE_BASE_SIZE_HINT = 1 << 8,
XCB_SIZE_P_WIN_GRAVITY_HINT = 1 << 9
};
struct xcb_size_hints_t {
uint32_t flags;
int32_t x, y, width, height;
int32_t min_width, min_height;
int32_t max_width, max_height;
int32_t width_inc, height_inc;
int32_t min_aspect_num, min_aspect_den;
int32_t max_aspect_num, max_aspect_den;
int32_t base_width, base_height;
uint32_t win_gravity;
};
static xcb_connection_t *conn = NULL;
static xcb_screen_t *screen = NULL;
static xcb_window_t win = 0;
static int first_expose = 0;
Eina_Bool
engine_software_xcb_args(const char *engine, int width, int height)
{
struct xcb_size_hints_t hints;
uint32_t value_list[6];
xcb_screen_iterator_t iter;
Evas_Engine_Info_Software_X11 *einfo;
xcb_intern_atom_reply_t *reply;
const char *str;
xcb_intern_atom_cookie_t cookie1;
xcb_intern_atom_cookie_t cookie2;
xcb_intern_atom_cookie_t cookie3;
xcb_intern_atom_cookie_t cookie4;
xcb_intern_atom_cookie_t cookie5;
xcb_atom_t string;
xcb_atom_t wm_name;
xcb_atom_t wm_class;
xcb_atom_t wm_normal_hint;
xcb_atom_t wm_size_hint;
uint32_t value_mask;
int s;
int s_tmp;
int l1;
int l2;
int i;
conn = xcb_connect(NULL, &s);
if (xcb_connection_has_error(conn)) return EINA_FALSE;
cookie1 = xcb_intern_atom_unchecked(conn, 0, strlen("STRING"), "STRING");
cookie2 = xcb_intern_atom_unchecked(conn, 0, strlen("WM_NAME"), "WM_NAME");
cookie3 = xcb_intern_atom_unchecked(conn, 0, strlen("WM_CLASS"), "WM_CLASS");
cookie4 = xcb_intern_atom_unchecked(conn, 0, strlen("WM_NORMAL_HINTS)"), "WM_NORMAL_HINTS)");
cookie5 = xcb_intern_atom_unchecked(conn, 0, strlen("WM_SIZE_HINTS)"), "WM_SIZE_HINTS)");
s_tmp = s;
iter = xcb_setup_roots_iterator(xcb_get_setup(conn));
for (; iter.rem; --s_tmp, xcb_screen_next (&iter))
if (s_tmp == 0)
{
screen = iter.data;
break;
}
evas_output_method_set(evas, evas_render_method_lookup("software_x11"));
einfo = (Evas_Engine_Info_Software_X11 *)evas_engine_info_get(evas);
if (!einfo)
{
printf("Evas does not support the Software XCB Engine\n");
goto close_connection;
}
einfo->info.backend = EVAS_ENGINE_INFO_SOFTWARE_X11_BACKEND_XCB;
einfo->info.connection = conn;
einfo->info.screen = screen;
einfo->info.visual = einfo->func.best_visual_get(1, conn, s);
einfo->info.colormap = einfo->func.best_colormap_get(1, conn, s);
einfo->info.depth = einfo->func.best_depth_get(1, conn, s);
einfo->info.rotation = 0;
einfo->info.debug = 0;
value_mask =
XCB_CW_BACK_PIXMAP | XCB_CW_BORDER_PIXEL | XCB_CW_BIT_GRAVITY |
XCB_CW_BACKING_STORE | XCB_CW_EVENT_MASK | XCB_CW_COLORMAP;
value_list[0] = XCB_NONE;
value_list[1] = 0;
value_list[2] = XCB_GRAVITY_BIT_FORGET;
value_list[3] = XCB_BACKING_STORE_NOT_USEFUL;
value_list[4] =
XCB_EVENT_MASK_KEY_PRESS | XCB_EVENT_MASK_KEY_RELEASE |
XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE |
XCB_EVENT_MASK_ENTER_WINDOW | XCB_EVENT_MASK_LEAVE_WINDOW |
XCB_EVENT_MASK_POINTER_MOTION | XCB_EVENT_MASK_EXPOSURE |
XCB_EVENT_MASK_STRUCTURE_NOTIFY;
value_list[5] = einfo->info.colormap;
win = xcb_generate_id(conn);
if (!win)
goto close_connection;
xcb_create_window(conn,
einfo->info.depth,
win, screen->root, 0, 0, width, height, 0,
XCB_WINDOW_CLASS_INPUT_OUTPUT,
((xcb_visualtype_t *)einfo->info.visual)->visual_id,
value_mask,
value_list);
einfo->info.drawable = win;
xcb_map_window(conn, win);
if (!evas_engine_info_set(evas, (Evas_Engine_Info *) einfo))
{
printf("Evas can not setup the informations of the Software XCB Engine\n");
goto destroy_window;
}
str = "expedite\0Expedite";
memset(&hints, 0, sizeof(hints));
hints.flags = XCB_SIZE_US_SIZE_HINT | XCB_SIZE_P_SIZE_HINT | XCB_SIZE_P_MIN_SIZE_HINT | XCB_SIZE_P_MAX_SIZE_HINT;
hints.min_width = width;
hints.max_width = width;
hints.min_height = height;
hints.max_height = height;
reply = xcb_intern_atom_reply(conn, cookie1, NULL);
string = reply->atom;
free(reply);
reply = xcb_intern_atom_reply(conn, cookie2, NULL);
wm_name = reply->atom;
free(reply);
xcb_change_property(conn, XCB_PROP_MODE_REPLACE, win,
wm_name, string, 8,
strlen("Expedite - Evas Test Suite"), "Expedite - Evas Test Suite");
reply = xcb_intern_atom_reply(conn, cookie3, NULL);
wm_class = reply->atom;
free(reply);
xcb_change_property(conn, XCB_PROP_MODE_REPLACE, win,
wm_class, string, 8,
l1 + l2 + 1, str);
reply = xcb_intern_atom_reply(conn, cookie4, NULL);
wm_normal_hint = reply->atom;
free(reply);
reply = xcb_intern_atom_reply(conn, cookie5, NULL);
wm_size_hint = reply->atom;
free(reply);
xcb_change_property(conn, XCB_PROP_MODE_REPLACE, win,
wm_normal_hint, wm_size_hint, 32,
sizeof(hints) / 4, &hints);
free(xcb_get_input_focus_reply(conn, xcb_get_input_focus_unchecked(conn), NULL));
while (!first_expose)
engine_software_xcb_loop();
return EINA_TRUE;
destroy_window:
xcb_destroy_window(conn, win);
close_connection:
free(xcb_intern_atom_reply(conn, cookie1, NULL));
free(xcb_intern_atom_reply(conn, cookie2, NULL));
free(xcb_intern_atom_reply(conn, cookie3, NULL));
free(xcb_intern_atom_reply(conn, cookie4, NULL));
free(xcb_intern_atom_reply(conn, cookie5, NULL));
xcb_disconnect(conn);
return EINA_FALSE;
}
void
engine_software_xcb_loop(void)
{
xcb_generic_event_t *ev;
again:
ev = xcb_poll_for_event(conn);
if (!ev)
return;
switch (ev->response_type)
{
case XCB_BUTTON_PRESS:
{
xcb_button_press_event_t *e;
e = (xcb_button_press_event_t *)ev;
evas_event_feed_mouse_move(evas, e->event_x, e->event_y, 0, NULL);
evas_event_feed_mouse_down(evas, e->detail, EVAS_BUTTON_NONE, 0, NULL);
break;
}
case XCB_BUTTON_RELEASE:
{
xcb_button_release_event_t *e;
e = (xcb_button_release_event_t *)ev;
evas_event_feed_mouse_move(evas, e->event_x, e->event_y, 0, NULL);
evas_event_feed_mouse_up(evas, e->detail, EVAS_BUTTON_NONE, 0, NULL);
break;
}
case XCB_MOTION_NOTIFY:
{
xcb_motion_notify_event_t *e;
e = (xcb_motion_notify_event_t *)ev;
evas_event_feed_mouse_move(evas, e->event_x, e->event_y, 0, NULL);
break;
}
case XCB_EXPOSE:
{
xcb_expose_event_t *e;
e = (xcb_expose_event_t *)ev;
first_expose = 1;
evas_damage_rectangle_add(evas,
e->x,
e->y,
e->width,
e->height);
break;
}
case XCB_CONFIGURE_NOTIFY:
{
xcb_configure_notify_event_t *e;
e = (xcb_configure_notify_event_t *)ev;
evas_output_viewport_set(evas, 0, 0,
e->width,
e->height);
evas_output_size_set(evas,
e->width,
e->height);
win_w = e->width;
win_h = e->height;
break;
}
case XCB_ENTER_NOTIFY:
evas_event_feed_mouse_in(evas, 0, NULL);
break;
case XCB_LEAVE_NOTIFY:
evas_event_feed_mouse_out(evas, 0, NULL);
break;
case XCB_KEY_PRESS:
{
xcb_key_press_event_t *e;
xcb_key_symbols_t *kss;
xcb_keysym_t ks;
char *str = "";
e = (xcb_key_press_event_t *)ev;
kss = xcb_key_symbols_alloc(conn);
ks = xcb_key_symbols_get_keysym(kss, e->detail, 0);
if ((ks == XK_Shift_L) || (ks == XK_Shift_R))
evas_key_modifier_on(evas, "Shift");
else if ((ks == XK_Control_L) || (ks == XK_Control_R))
evas_key_modifier_on(evas, "Control");
else if ((ks == XK_Alt_L) || (ks == XK_Alt_R))
evas_key_modifier_on(evas, "Alt");
else if ((ks == XK_Super_L) || (ks == XK_Super_R))
evas_key_modifier_on(evas, "Super");
else if (ks == XK_Caps_Lock)
{
if (evas_key_lock_is_set(evas_key_lock_get(evas), "Caps_Lock"))
evas_key_lock_off(evas, "Caps_Lock");
else
evas_key_lock_on(evas, "Caps_Lock");
}
else if (ks == XK_Scroll_Lock)
{
if (evas_key_lock_is_set(evas_key_lock_get(evas), "Scroll_Lock"))
evas_key_lock_off(evas, "Scroll_Lock");
else
evas_key_lock_on(evas, "Scroll_Lock");
}
if (ks == XK_Left)
str = "Left";
if (ks == XK_Right)
str = "Right";
if (ks == XK_Escape)
str = "Escape";
if (ks == XK_Return)
str = "Return";
if (ks == 113)
str = "q";
evas_event_feed_key_down(evas, str, str, NULL, NULL, 0, NULL);
xcb_key_symbols_free(kss);
break;
}
case XCB_KEY_RELEASE:
{
xcb_key_release_event_t *e;
xcb_key_symbols_t *kss;
xcb_keysym_t ks;
char *str = "";
e = (xcb_key_release_event_t *)ev;
kss = xcb_key_symbols_alloc(conn);
ks = xcb_key_symbols_get_keysym(kss, e->detail, 0);
if ((ks == XK_Shift_L) || (ks == XK_Shift_R))
evas_key_modifier_on(evas, "Shift");
else if ((ks == XK_Control_L) || (ks == XK_Control_R))
evas_key_modifier_on(evas, "Control");
else if ((ks == XK_Alt_L) || (ks == XK_Alt_R))
evas_key_modifier_on(evas, "Alt");
else if ((ks == XK_Super_L) || (ks == XK_Super_R))
evas_key_modifier_on(evas, "Super");
if (ks == XK_Left)
str = "Left";
if (ks == XK_Right)
str = "Right";
if (ks == XK_Escape)
str = "Escape";
if (ks == XK_Return)
str = "Return";
if (ks == 113)
str = "q";
evas_event_feed_key_up(evas, str, str, NULL, NULL, 0, NULL);
xcb_key_symbols_free(kss);
break;
}
default:
free(ev);
return;
}
free(ev);
goto again;
}
void
engine_software_xcb_shutdown(void)
{
xcb_destroy_window(conn, win);
xcb_disconnect(conn);
}
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