xcb_image_t * xcb_image_shm_put (xcb_connection_t * conn, xcb_drawable_t draw, xcb_gcontext_t gc, xcb_image_t * image, xcb_shm_segment_info_t shminfo, int16_t src_x, int16_t src_y, int16_t dest_x, int16_t dest_y, uint16_t src_width, uint16_t src_height, uint8_t send_event) { if (!xcb_image_native(conn, image, 0)) return 0; if (!shminfo.shmaddr) return 0; xcb_shm_put_image(conn, draw, gc, image->width, image->height, src_x, src_y, src_width, src_height, dest_x, dest_y, image->depth, image->format, send_event, shminfo.shmseg, image->data - shminfo.shmaddr); return image; }
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; }