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#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <xcb/xcb.h>
#include "../aux/xcb_aux.h"
#include "xcb_image.h"
#include "test.xbm"
static xcb_window_t make_window(xcb_connection_t *c,
xcb_screen_t *s,
uint32_t bg,
uint32_t fg,
uint32_t width,
uint32_t height) {
uint32_t mask = 0;
xcb_params_cw_t cwa;
xcb_window_t w;
xcb_void_cookie_t check_cookie;
xcb_generic_error_t *error;
xcb_visualtype_t *v = xcb_aux_find_visual_by_id(s, s->root_visual);
assert(v);
XCB_AUX_ADD_PARAM(&mask, &cwa, back_pixel, bg);
XCB_AUX_ADD_PARAM(&mask, &cwa, border_pixel, fg);
XCB_AUX_ADD_PARAM(&mask, &cwa, override_redirect, 1);
XCB_AUX_ADD_PARAM(&mask, &cwa, event_mask,
XCB_EVENT_MASK_BUTTON_PRESS |
XCB_EVENT_MASK_EXPOSURE);
w = xcb_generate_id(c);
check_cookie = xcb_aux_create_window_checked(c,
s->root_depth, w, s->root, 0, 0, width, height, 1,
XCB_WINDOW_CLASS_INPUT_OUTPUT, v->visual_id, mask, &cwa);
error = xcb_request_check(c, check_cookie);
assert(!error);
check_cookie = xcb_map_window_checked(c, w);
error = xcb_request_check(c, check_cookie);
assert(!error);
return w;
}
void process_events(xcb_connection_t *c,
xcb_gcontext_t g,
xcb_window_t w,
xcb_pixmap_t p,
uint32_t width,
uint32_t height) {
xcb_generic_event_t *e;
xcb_void_cookie_t cookie;
while ((e = xcb_wait_for_event(c))) {
uint32_t r = e->response_type & 0x7f;
xcb_generic_error_t *err;
fprintf(stderr, "event %d\n", r);
switch (r) {
case XCB_EXPOSE:
case XCB_MAP_NOTIFY:
cookie = xcb_copy_area_checked(c, p, w, g,
0, 0, 0, 0,
width, height);
assert(!xcb_request_check(c, cookie));
break;
case XCB_BUTTON_PRESS:
exit(0);
break;
case 0:
err = (xcb_generic_error_t *) e;
printf("error: %d (sequence %d)\n",
err->error_code, (unsigned int) err->full_sequence);
exit(1);
default:
break;
}
free(e);
}
}
#define INSET_X 31
#define INSET_Y 32
int main(int argc, char **argv) {
uint32_t width = test_width - 2 * INSET_X;
uint32_t height = test_height - 2 * INSET_Y;
int snum;
xcb_void_cookie_t check_cookie;
xcb_window_t w;
xcb_gcontext_t gc;
xcb_pixmap_t pix;
xcb_connection_t *c = xcb_connect(0, &snum);
xcb_screen_t *s = xcb_aux_get_screen(c, snum);
xcb_alloc_named_color_cookie_t bg_cookie =
xcb_alloc_named_color(c, s->default_colormap,
strlen("white"), "white");
xcb_alloc_named_color_cookie_t fg_cookie =
xcb_alloc_named_color(c, s->default_colormap,
strlen("black"), "black");
xcb_alloc_named_color_reply_t *bg_reply =
xcb_alloc_named_color_reply(c, bg_cookie, 0);
xcb_alloc_named_color_reply_t *fg_reply =
xcb_alloc_named_color_reply(c, fg_cookie, 0);
uint32_t fg, bg;
xcb_image_t *image, *native_image, *subimage;
uint32_t mask = 0;
xcb_params_gc_t gcv;
assert(bg_reply && fg_reply);
bg = bg_reply->pixel;
fg = fg_reply->pixel;
free(bg_reply);
free(fg_reply);
w = make_window(c, s, bg, fg, width, height);
gc = xcb_generate_id(c);
check_cookie = xcb_create_gc_checked(c, gc, w, 0, 0);
assert(!xcb_request_check(c, check_cookie));
image = xcb_image_create_from_bitmap_data((uint8_t *)test_bits,
test_width, test_height);
native_image = xcb_image_native(c, image, 1);
assert(native_image);
if (native_image != image)
xcb_image_destroy(image);
subimage = xcb_image_subimage(native_image, INSET_X, INSET_Y,
width, height,
0, 0, 0);
assert(subimage);
xcb_image_destroy(native_image);
subimage->format = XCB_IMAGE_FORMAT_XY_BITMAP;
pix = xcb_generate_id(c);
xcb_create_pixmap(c, s->root_depth, pix, w,
subimage->width, subimage->height);
gc = xcb_generate_id(c);
XCB_AUX_ADD_PARAM(&mask, &gcv, foreground, fg);
XCB_AUX_ADD_PARAM(&mask, &gcv, background, bg);
xcb_aux_create_gc(c, gc, pix, mask, &gcv);
xcb_image_put(c, pix, gc, subimage, 0, 0, 0);
process_events(c, gc, w, pix, width, height);
xcb_disconnect(c);
return 1;
}
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