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#include <stdio.h>
#include <stdlib.h>
#include <xcb/xcb.h>
#include "xcb_aux.h"
/* Connection related functions */
uint8_t
xcb_aux_get_depth (xcb_connection_t *c,
xcb_screen_t *screen)
{
xcb_drawable_t drawable;
xcb_get_geometry_reply_t *geom;
int depth;
drawable = screen->root;
geom = xcb_get_geometry_reply (c, xcb_get_geometry(c, drawable), 0);
if (!geom) {
perror ("GetGeometry(root) failed");
exit (0);
}
depth = geom->depth;
free (geom);
return depth;
}
uint8_t
xcb_aux_get_depth_of_visual (xcb_screen_t *screen,
xcb_visualid_t id)
{
xcb_depth_iterator_t i;
xcb_visualtype_iterator_t j;
for (i = xcb_screen_allowed_depths_iterator(screen);
i.rem; xcb_depth_next(&i))
for (j = xcb_depth_visuals_iterator(i.data);
j.rem; xcb_visualtype_next(&j))
if (j.data->visual_id == id)
return i.data->depth;
return 0;
}
xcb_screen_t *
xcb_aux_get_screen (xcb_connection_t *c,
int screen)
{
xcb_screen_iterator_t i = xcb_setup_roots_iterator(xcb_get_setup(c));
for (; i.rem; --screen, xcb_screen_next(&i))
if (screen == 0)
return i.data;
return 0;
}
xcb_visualtype_t *
xcb_aux_get_visualtype (xcb_connection_t *c,
int scr,
xcb_visualid_t vid)
{
xcb_screen_t *screen;
xcb_depth_t *depth;
xcb_visualtype_iterator_t iter;
int cur;
screen = xcb_aux_get_screen (c, scr);
if (!screen) return NULL;
depth = xcb_screen_allowed_depths_iterator(screen).data;
if (!depth) return NULL;
iter = xcb_depth_visuals_iterator(depth);
for (cur = 0 ; cur < iter.rem ; xcb_visualtype_next(&iter), ++cur)
if (vid == iter.data->visual_id)
return iter.data;
return NULL;
}
xcb_visualtype_t *
xcb_aux_find_visual_by_id (xcb_screen_t *screen,
xcb_visualid_t id)
{
xcb_depth_iterator_t i;
xcb_visualtype_iterator_t j;
for (i = xcb_screen_allowed_depths_iterator(screen);
i.rem; xcb_depth_next(&i))
for (j = xcb_depth_visuals_iterator(i.data);
j.rem; xcb_visualtype_next(&j))
if (j.data->visual_id == id)
return j.data;
return 0;
}
xcb_visualtype_t *
xcb_aux_find_visual_by_attrs (xcb_screen_t *screen,
int8_t class,
int8_t depth)
{
xcb_depth_iterator_t i;
xcb_visualtype_iterator_t j;
for (i = xcb_screen_allowed_depths_iterator(screen);
i.rem; xcb_depth_next(&i)) {
if (depth != -1 && i.data->depth != depth)
continue;
for (j = xcb_depth_visuals_iterator(i.data);
j.rem; xcb_visualtype_next(&j))
if (class == -1 || j.data->visual_class == class)
return j.data;
}
return 0;
}
void
xcb_aux_sync (xcb_connection_t *c)
{
free(xcb_get_input_focus_reply(c, xcb_get_input_focus(c), NULL));
}
/* structs instead of value lists */
/* TODO: generate the struct types and functions from protocol masks and descriptions */
/* This generic implementation of pack_list depends on:
a) structs packed to uint32_t size
b) structs consist of just uint32_t/int32_t fields in the same order as bitmask
*/
static void
pack_list( uint32_t mask, const uint32_t *src, uint32_t *dest )
{
for ( ; mask; mask >>= 1, src++)
if (mask & 1)
*dest++ = *src;
}
xcb_void_cookie_t
xcb_aux_create_window (xcb_connection_t *c,
uint8_t depth,
xcb_window_t wid,
xcb_window_t parent,
int16_t x,
int16_t y,
uint16_t width,
uint16_t height,
uint16_t border_width,
uint16_t _class,
xcb_visualid_t visual,
uint32_t mask,
const xcb_params_cw_t *params)
{
uint32_t value_list[16];
pack_list(mask, (const uint32_t *)params, value_list);
return xcb_create_window(c, depth, wid, parent,
x, y, width, height, border_width,
_class, visual, mask, value_list);
}
xcb_void_cookie_t
xcb_aux_change_window_attributes (xcb_connection_t *c,
xcb_window_t window,
uint32_t mask,
const xcb_params_cw_t *params)
{
uint32_t value_list[16];
pack_list(mask, (const uint32_t *)params, value_list);
return xcb_change_window_attributes( c, window, mask, value_list );
}
xcb_void_cookie_t
xcb_aux_configure_window (xcb_connection_t *c,
xcb_window_t window,
uint16_t mask,
const xcb_params_configure_window_t *params)
{
uint32_t value_list[8];
pack_list(mask, (const uint32_t *)params, value_list);
return xcb_configure_window( c, window, mask, value_list );
}
xcb_void_cookie_t
xcb_aux_create_gc (xcb_connection_t *c,
xcb_gcontext_t gid,
xcb_drawable_t drawable,
uint32_t mask,
const xcb_params_gc_t *params)
{
uint32_t value_list[32];
pack_list(mask, (const uint32_t *)params, value_list);
return xcb_create_gc( c, gid, drawable, mask, value_list );
}
xcb_void_cookie_t
xcb_aux_change_gc (xcb_connection_t *c,
xcb_gcontext_t gc,
uint32_t mask,
const xcb_params_gc_t *params)
{
uint32_t value_list[32];
pack_list(mask, (const uint32_t *)params, value_list);
return xcb_change_gc( c, gc, mask, value_list );
}
xcb_void_cookie_t
xcb_aux_change_keyboard_control (xcb_connection_t *c,
uint32_t mask,
const xcb_params_keyboard_t *params)
{
uint32_t value_list[16];
pack_list(mask, (const uint32_t *)params, value_list);
return xcb_change_keyboard_control( c, mask, value_list );
}
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