From: Michael Stapelberg Date: Tue, 3 Jan 2012 20:56:05 +0000 (+0000) Subject: Refactor the unlock indicator into its own source code file X-Git-Tag: 2.3~20 X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=57585bef70d82b82b8f5a4b1a7eed2d2db7fa8c9;p=i3%2Fi3lock Refactor the unlock indicator into its own source code file --- diff --git a/i3lock.c b/i3lock.c index f9255d7..8a365f3 100644 --- a/i3lock.c +++ b/i3lock.c @@ -22,7 +22,6 @@ #include #include #include -#include #include #include @@ -36,20 +35,13 @@ #include "ucs2_to_utf8.h" #include "xcb.h" #include "cursors.h" +#include "unlock_indicator.h" -#define BUTTON_RADIUS 90 -#define BUTTON_SPACE (BUTTON_RADIUS + 5) -#define BUTTON_CENTER (BUTTON_RADIUS + 5) -#define BUTTON_DIAMETER (5 * BUTTON_SPACE) - -static char color[7] = "ffffff"; -static uint32_t last_resolution[2]; -static xcb_connection_t *conn; -static xcb_window_t win; -static xcb_visualtype_t *vistype; +char color[7] = "ffffff"; +uint32_t last_resolution[2]; +xcb_window_t win; static xcb_cursor_t cursor; static xcb_key_symbols_t *symbols; -static xcb_screen_t *scr; static pam_handle_t *pam_handle; static int input_position = 0; /* Holds the password you enter (in UTF-8). */ @@ -62,26 +54,13 @@ static int numlockmask; static bool beep = false; static bool debug_mode = false; static bool dpms = false; -static bool unlock_indicator = true; +bool unlock_indicator = true; static bool dont_fork = false; static struct ev_loop *main_loop; static struct ev_timer *clear_pam_wrong_timeout; static struct ev_timer *clear_indicator_timeout; - -static enum { - STATE_STARTED = 0, /* default state */ - STATE_KEY_PRESSED = 1, /* key was pressed, show unlock indicator */ - STATE_KEY_ACTIVE = 2, /* a key was pressed recently, highlight part - of the unlock indicator. */ - STATE_BACKSPACE_ACTIVE = 3 /* backspace was pressed recently, highlight - part of the unlock indicator in red. */ -} unlock_state; - -static enum { - STATE_PAM_IDLE = 0, /* no PAM interaction at the moment */ - STATE_PAM_VERIFY = 1, /* currently verifying the password via PAM */ - STATE_PAM_WRONG = 2 /* the password was wrong */ -} pam_state; +extern unlock_state_t unlock_state; +extern pam_state_t pam_state; #define DEBUG(fmt, ...) do { \ if (debug_mode) \ @@ -89,8 +68,8 @@ static enum { } while (0) #ifndef NOLIBCAIRO -static cairo_surface_t *img = NULL; -static bool tile = false; +cairo_surface_t *img = NULL; +bool tile = false; #endif /* @@ -110,188 +89,6 @@ static void clear_password_memory() { vpassword[c] = c + (int)beep; } -/* - * Draws global image with fill color onto a pixmap with the given - * resolution and returns it. - * - */ -static xcb_pixmap_t draw_image(xcb_visualtype_t *vistype, u_int32_t* resolution) { - xcb_pixmap_t bg_pixmap = XCB_NONE; - -#ifndef NOLIBCAIRO - bg_pixmap = create_bg_pixmap(conn, scr, resolution, color); - /* Initialize cairo */ - cairo_surface_t *output; - output = cairo_xcb_surface_create(conn, bg_pixmap, vistype, - resolution[0], resolution[1]); - cairo_t *ctx = cairo_create(output); - if (img) { - if (!tile) { - cairo_set_source_surface(ctx, img, 0, 0); - cairo_paint(ctx); - } else { - /* create a pattern and fill a rectangle as big as the screen */ - cairo_pattern_t *pattern; - pattern = cairo_pattern_create_for_surface(img); - cairo_set_source(ctx, pattern); - cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT); - cairo_rectangle(ctx, 0, 0, resolution[0], resolution[1]); - cairo_fill(ctx); - cairo_pattern_destroy(pattern); - } - } - - if (unlock_state >= STATE_KEY_PRESSED && unlock_indicator) { - cairo_pattern_t *outer_pat = NULL; - - outer_pat = cairo_pattern_create_linear(0, 0, 0, BUTTON_DIAMETER); - switch (pam_state) { - case STATE_PAM_VERIFY: - cairo_pattern_add_color_stop_rgb(outer_pat, 0, 139.0/255, 0, 250.0/255); - cairo_pattern_add_color_stop_rgb(outer_pat, 1, 51.0/255, 0, 250.0/255); - break; - case STATE_PAM_WRONG: - cairo_pattern_add_color_stop_rgb(outer_pat, 0, 255.0/250, 139.0/255, 0); - cairo_pattern_add_color_stop_rgb(outer_pat, 1, 125.0/255, 51.0/255, 0); - break; - case STATE_PAM_IDLE: - cairo_pattern_add_color_stop_rgb(outer_pat, 0, 139.0/255, 125.0/255, 0); - cairo_pattern_add_color_stop_rgb(outer_pat, 1, 51.0/255, 125.0/255, 0); - break; - } - - /* Draw a (centered) circle with transparent background. */ - cairo_set_line_width(ctx, 10.0); - cairo_arc(ctx, - (resolution[0] / 2) /* x */, - (resolution[1] / 2) /* y */, - BUTTON_RADIUS /* radius */, - 0 /* start */, - 2 * M_PI /* end */); - - /* Use the appropriate color for the different PAM states - * (currently verifying, wrong password, or default) */ - switch (pam_state) { - case STATE_PAM_VERIFY: - cairo_set_source_rgba(ctx, 0, 114.0/255, 255.0/255, 0.75); - break; - case STATE_PAM_WRONG: - cairo_set_source_rgba(ctx, 250.0/255, 0, 0, 0.75); - break; - default: - cairo_set_source_rgba(ctx, 0, 0, 0, 0.75); - break; - } - cairo_fill_preserve(ctx); - cairo_set_source(ctx, outer_pat); - cairo_stroke(ctx); - - /* Draw an inner seperator line. */ - cairo_set_source_rgb(ctx, 0, 0, 0); - cairo_set_line_width(ctx, 2.0); - cairo_arc(ctx, - (resolution[0] / 2) /* x */, - (resolution[1] / 2) /* y */, - BUTTON_RADIUS - 5 /* radius */, - 0, - 2 * M_PI); - cairo_stroke(ctx); - - cairo_set_line_width(ctx, 10.0); - - /* Display a (centered) text of the current PAM state. */ - char *text = NULL; - switch (pam_state) { - case STATE_PAM_VERIFY: - text = "verifying…"; - break; - case STATE_PAM_WRONG: - text = "wrong!"; - break; - default: - break; - } - - if (text) { - cairo_text_extents_t extents; - double x, y; - - cairo_set_source_rgb(ctx, 0, 0, 0); - cairo_set_font_size(ctx, 28.0); - - cairo_text_extents(ctx, text, &extents); - x = (resolution[0] / 2.0) - ((extents.width / 2) + extents.x_bearing); - y = (resolution[1] / 2.0) - ((extents.height / 2) + extents.y_bearing); - - cairo_move_to(ctx, x, y); - cairo_show_text(ctx, text); - cairo_close_path(ctx); - } - - /* After the user pressed any valid key or the backspace key, we - * highlight a random part of the unlock indicator to confirm this - * keypress. */ - if (unlock_state == STATE_KEY_ACTIVE || - unlock_state == STATE_BACKSPACE_ACTIVE) { - cairo_new_sub_path(ctx); - double highlight_start = (rand() % (int)(2 * M_PI * 100)) / 100.0; - DEBUG("Highlighting part %.2f\n", highlight_start); - cairo_arc(ctx, resolution[0] / 2 /* x */, resolution[1] / 2 /* y */, - BUTTON_RADIUS /* radius */, highlight_start, - highlight_start + (M_PI / 3.0)); - if (unlock_state == STATE_KEY_ACTIVE) { - /* For normal keys, we use a lighter green. */ - outer_pat = cairo_pattern_create_linear(0, 0, 0, BUTTON_DIAMETER); - cairo_pattern_add_color_stop_rgb(outer_pat, 0, 139.0/255, 219.0/255, 0); - cairo_pattern_add_color_stop_rgb(outer_pat, 1, 51.0/255, 219.0/255, 0); - } else { - /* For backspace, we use red. */ - outer_pat = cairo_pattern_create_linear(0, 0, 0, BUTTON_DIAMETER); - cairo_pattern_add_color_stop_rgb(outer_pat, 0, 219.0/255, 139.0/255, 0); - cairo_pattern_add_color_stop_rgb(outer_pat, 1, 219.0/255, 51.0/255, 0); - } - cairo_set_source(ctx, outer_pat); - cairo_stroke(ctx); - - /* Draw two little separators for the highlighted part of the - * unlock indicator. */ - cairo_set_source_rgb(ctx, 0, 0, 0); - cairo_arc(ctx, - (resolution[0] / 2) /* x */, - (resolution[1] / 2) /* y */, - BUTTON_RADIUS /* radius */, - highlight_start /* start */, - highlight_start + (M_PI / 128.0) /* end */); - cairo_stroke(ctx); - cairo_arc(ctx, - (resolution[0] / 2) /* x */, - (resolution[1] / 2) /* y */, - BUTTON_RADIUS /* radius */, - highlight_start + (M_PI / 3.0) /* start */, - (highlight_start + (M_PI / 3.0)) + (M_PI / 128.0) /* end */); - cairo_stroke(ctx); - } - } - - cairo_surface_destroy(output); - cairo_destroy(ctx); -#endif - return bg_pixmap; -} - -/* - * Calls draw_image on a new pixmap and swaps that with the current pixmap - * - */ -static void redraw_screen() { - xcb_pixmap_t bg_pixmap = draw_image(vistype, last_resolution); - xcb_change_window_attributes(conn, win, XCB_CW_BACK_PIXMAP, (uint32_t[1]){ bg_pixmap }); - /* XXX: Possible optimization: Only update the area in the middle of the - * screen instead of the whole screen. */ - xcb_clear_area(conn, 0, win, 0, 0, scr->width_in_pixels, scr->height_in_pixels); - xcb_free_pixmap(conn, bg_pixmap); - xcb_flush(conn); -} /* * Resets pam_state to STATE_PAM_IDLE 2 seconds after an unsuccesful @@ -594,10 +391,10 @@ static void handle_mapping_notify(xcb_mapping_notify_event_t *event) { * and also redraw the image, if any. * */ -void handle_screen_resize(xcb_visualtype_t *vistype, xcb_window_t win, uint32_t* last_resolution) { +void handle_screen_resize(xcb_window_t win, uint32_t* last_resolution) { xcb_get_geometry_cookie_t geomc; xcb_get_geometry_reply_t *geom; - geomc = xcb_get_geometry(conn, scr->root); + geomc = xcb_get_geometry(conn, screen->root); if ((geom = xcb_get_geometry_reply(conn, geomc, 0)) == NULL) { return; } @@ -609,11 +406,7 @@ void handle_screen_resize(xcb_visualtype_t *vistype, xcb_window_t win, uint32_t* last_resolution[1] = geom->height; #ifndef NOLIBCAIRO - if (img) { - xcb_pixmap_t bg_pixmap = draw_image(vistype, last_resolution); - xcb_change_window_attributes(conn, win, XCB_CW_BACK_PIXMAP, (uint32_t[1]){ bg_pixmap }); - xcb_free_pixmap(conn, bg_pixmap); - } + redraw_screen(); #endif uint32_t mask = XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT; @@ -730,7 +523,7 @@ static void xcb_check_cb(EV_P_ ev_check *w, int revents) { } if (type == XCB_CONFIGURE_NOTIFY) { - handle_screen_resize(vistype, win, last_resolution); + handle_screen_resize(win, last_resolution); continue; } @@ -747,7 +540,7 @@ int main(int argc, char *argv[]) { #endif int ret; struct pam_conv conv = {conv_callback, NULL}; - int screen; + int nscreen; int curs_choice = CURS_NONE; char o; int optind = 0; @@ -851,7 +644,7 @@ int main(int argc, char *argv[]) { err(EXIT_FAILURE, "Could not lock page in memory, check RLIMIT_MEMLOCK"); /* Initialize connection to X11 */ - if ((conn = xcb_connect(NULL, &screen)) == NULL || + if ((conn = xcb_connect(NULL, &nscreen)) == NULL || xcb_connection_has_error(conn)) errx(EXIT_FAILURE, "Could not connect to X11, maybe you need to set DISPLAY?"); @@ -865,11 +658,10 @@ int main(int argc, char *argv[]) { } } - scr = xcb_setup_roots_iterator(xcb_get_setup(conn)).data; - vistype = get_root_visual_type(scr); + screen = xcb_setup_roots_iterator(xcb_get_setup(conn)).data; - last_resolution[0] = scr->width_in_pixels; - last_resolution[1] = scr->height_in_pixels; + last_resolution[0] = screen->width_in_pixels; + last_resolution[1] = screen->height_in_pixels; #ifndef NOLIBCAIRO @@ -880,15 +672,15 @@ int main(int argc, char *argv[]) { #endif /* Pixmap on which the image is rendered to (if any) */ - xcb_pixmap_t bg_pixmap = draw_image(vistype, last_resolution); + xcb_pixmap_t bg_pixmap = draw_image(last_resolution); /* open the fullscreen window, already with the correct pixmap in place */ - win = open_fullscreen_window(conn, scr, color, bg_pixmap); + win = open_fullscreen_window(conn, screen, color, bg_pixmap); xcb_free_pixmap(conn, bg_pixmap); - cursor = create_cursor(conn, scr, win, curs_choice); + cursor = create_cursor(conn, screen, win, curs_choice); - grab_pointer_and_keyboard(conn, scr, cursor); + grab_pointer_and_keyboard(conn, screen, cursor); symbols = xcb_key_symbols_alloc(conn); modeswitchmask = get_mod_mask(conn, symbols, XK_Mode_switch); diff --git a/unlock_indicator.c b/unlock_indicator.c new file mode 100644 index 0000000..2c4d054 --- /dev/null +++ b/unlock_indicator.c @@ -0,0 +1,242 @@ +/* + * vim:ts=4:sw=4:expandtab + * + * © 2010-2012 Michael Stapelberg + * + * See LICENSE for licensing information + * + */ +#include +#include +#include +#include +#include + +#ifndef NOLIBCAIRO +#include +#include +#endif + +#include "xcb.h" +#include "unlock_indicator.h" + +#define BUTTON_RADIUS 90 +#define BUTTON_SPACE (BUTTON_RADIUS + 5) +#define BUTTON_CENTER (BUTTON_RADIUS + 5) +#define BUTTON_DIAMETER (5 * BUTTON_SPACE) + +/******************************************************************************* + * Variables defined in i3lock.c. + ******************************************************************************/ + +/* The lock window. */ +extern xcb_window_t win; + +/* The current resolution of the X11 root window. */ +extern uint32_t last_resolution[2]; + +/* Whether the unlock indicator is enabled (defaults to true). */ +extern bool unlock_indicator; + +/* A Cairo surface containing the specified image (-i), if any. */ +extern cairo_surface_t *img; +/* Whether the image should be tiled. */ +extern bool tile; +/* The background color to use (in hex). */ +extern char color[7]; + +/******************************************************************************* + * Local variables. + ******************************************************************************/ + +/* Cache the screen’s visual, necessary for creating a Cairo context. */ +static xcb_visualtype_t *vistype; + +/* Maintain the current unlock/PAM state to draw the appropriate unlock + * indicator. */ +unlock_state_t unlock_state; +pam_state_t pam_state; + +/* + * Draws global image with fill color onto a pixmap with the given + * resolution and returns it. + * + */ +xcb_pixmap_t draw_image(uint32_t *resolution) { + xcb_pixmap_t bg_pixmap = XCB_NONE; + +#ifndef NOLIBCAIRO + if (!vistype) + vistype = get_root_visual_type(screen); + bg_pixmap = create_bg_pixmap(conn, screen, resolution, color); + /* Initialize cairo */ + cairo_surface_t *output; + output = cairo_xcb_surface_create(conn, bg_pixmap, vistype, + resolution[0], resolution[1]); + cairo_t *ctx = cairo_create(output); + if (img) { + if (!tile) { + cairo_set_source_surface(ctx, img, 0, 0); + cairo_paint(ctx); + } else { + /* create a pattern and fill a rectangle as big as the screen */ + cairo_pattern_t *pattern; + pattern = cairo_pattern_create_for_surface(img); + cairo_set_source(ctx, pattern); + cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT); + cairo_rectangle(ctx, 0, 0, resolution[0], resolution[1]); + cairo_fill(ctx); + cairo_pattern_destroy(pattern); + } + } + + if (unlock_state >= STATE_KEY_PRESSED && unlock_indicator) { + cairo_pattern_t *outer_pat = NULL; + + outer_pat = cairo_pattern_create_linear(0, 0, 0, BUTTON_DIAMETER); + switch (pam_state) { + case STATE_PAM_VERIFY: + cairo_pattern_add_color_stop_rgb(outer_pat, 0, 139.0/255, 0, 250.0/255); + cairo_pattern_add_color_stop_rgb(outer_pat, 1, 51.0/255, 0, 250.0/255); + break; + case STATE_PAM_WRONG: + cairo_pattern_add_color_stop_rgb(outer_pat, 0, 255.0/250, 139.0/255, 0); + cairo_pattern_add_color_stop_rgb(outer_pat, 1, 125.0/255, 51.0/255, 0); + break; + case STATE_PAM_IDLE: + cairo_pattern_add_color_stop_rgb(outer_pat, 0, 139.0/255, 125.0/255, 0); + cairo_pattern_add_color_stop_rgb(outer_pat, 1, 51.0/255, 125.0/255, 0); + break; + } + + /* Draw a (centered) circle with transparent background. */ + cairo_set_line_width(ctx, 10.0); + cairo_arc(ctx, + (resolution[0] / 2) /* x */, + (resolution[1] / 2) /* y */, + BUTTON_RADIUS /* radius */, + 0 /* start */, + 2 * M_PI /* end */); + + /* Use the appropriate color for the different PAM states + * (currently verifying, wrong password, or default) */ + switch (pam_state) { + case STATE_PAM_VERIFY: + cairo_set_source_rgba(ctx, 0, 114.0/255, 255.0/255, 0.75); + break; + case STATE_PAM_WRONG: + cairo_set_source_rgba(ctx, 250.0/255, 0, 0, 0.75); + break; + default: + cairo_set_source_rgba(ctx, 0, 0, 0, 0.75); + break; + } + cairo_fill_preserve(ctx); + cairo_set_source(ctx, outer_pat); + cairo_stroke(ctx); + + /* Draw an inner seperator line. */ + cairo_set_source_rgb(ctx, 0, 0, 0); + cairo_set_line_width(ctx, 2.0); + cairo_arc(ctx, + (resolution[0] / 2) /* x */, + (resolution[1] / 2) /* y */, + BUTTON_RADIUS - 5 /* radius */, + 0, + 2 * M_PI); + cairo_stroke(ctx); + + cairo_set_line_width(ctx, 10.0); + + /* Display a (centered) text of the current PAM state. */ + char *text = NULL; + switch (pam_state) { + case STATE_PAM_VERIFY: + text = "verifying…"; + break; + case STATE_PAM_WRONG: + text = "wrong!"; + break; + default: + break; + } + + if (text) { + cairo_text_extents_t extents; + double x, y; + + cairo_set_source_rgb(ctx, 0, 0, 0); + cairo_set_font_size(ctx, 28.0); + + cairo_text_extents(ctx, text, &extents); + x = (resolution[0] / 2.0) - ((extents.width / 2) + extents.x_bearing); + y = (resolution[1] / 2.0) - ((extents.height / 2) + extents.y_bearing); + + cairo_move_to(ctx, x, y); + cairo_show_text(ctx, text); + cairo_close_path(ctx); + } + + /* After the user pressed any valid key or the backspace key, we + * highlight a random part of the unlock indicator to confirm this + * keypress. */ + if (unlock_state == STATE_KEY_ACTIVE || + unlock_state == STATE_BACKSPACE_ACTIVE) { + cairo_new_sub_path(ctx); + double highlight_start = (rand() % (int)(2 * M_PI * 100)) / 100.0; + cairo_arc(ctx, resolution[0] / 2 /* x */, resolution[1] / 2 /* y */, + BUTTON_RADIUS /* radius */, highlight_start, + highlight_start + (M_PI / 3.0)); + if (unlock_state == STATE_KEY_ACTIVE) { + /* For normal keys, we use a lighter green. */ + outer_pat = cairo_pattern_create_linear(0, 0, 0, BUTTON_DIAMETER); + cairo_pattern_add_color_stop_rgb(outer_pat, 0, 139.0/255, 219.0/255, 0); + cairo_pattern_add_color_stop_rgb(outer_pat, 1, 51.0/255, 219.0/255, 0); + } else { + /* For backspace, we use red. */ + outer_pat = cairo_pattern_create_linear(0, 0, 0, BUTTON_DIAMETER); + cairo_pattern_add_color_stop_rgb(outer_pat, 0, 219.0/255, 139.0/255, 0); + cairo_pattern_add_color_stop_rgb(outer_pat, 1, 219.0/255, 51.0/255, 0); + } + cairo_set_source(ctx, outer_pat); + cairo_stroke(ctx); + + /* Draw two little separators for the highlighted part of the + * unlock indicator. */ + cairo_set_source_rgb(ctx, 0, 0, 0); + cairo_arc(ctx, + (resolution[0] / 2) /* x */, + (resolution[1] / 2) /* y */, + BUTTON_RADIUS /* radius */, + highlight_start /* start */, + highlight_start + (M_PI / 128.0) /* end */); + cairo_stroke(ctx); + cairo_arc(ctx, + (resolution[0] / 2) /* x */, + (resolution[1] / 2) /* y */, + BUTTON_RADIUS /* radius */, + highlight_start + (M_PI / 3.0) /* start */, + (highlight_start + (M_PI / 3.0)) + (M_PI / 128.0) /* end */); + cairo_stroke(ctx); + } + } + + cairo_surface_destroy(output); + cairo_destroy(ctx); +#endif + return bg_pixmap; +} + +/* + * Calls draw_image on a new pixmap and swaps that with the current pixmap + * + */ +void redraw_screen() { + xcb_pixmap_t bg_pixmap = draw_image(last_resolution); + xcb_change_window_attributes(conn, win, XCB_CW_BACK_PIXMAP, (uint32_t[1]){ bg_pixmap }); + /* XXX: Possible optimization: Only update the area in the middle of the + * screen instead of the whole screen. */ + xcb_clear_area(conn, 0, win, 0, 0, screen->width_in_pixels, screen->height_in_pixels); + xcb_free_pixmap(conn, bg_pixmap); + xcb_flush(conn); +} diff --git a/unlock_indicator.h b/unlock_indicator.h new file mode 100644 index 0000000..6cd7b54 --- /dev/null +++ b/unlock_indicator.h @@ -0,0 +1,22 @@ +#ifndef _UNLOCK_INDICATOR_H +#define _UNLOCK_INDICATOR_H + +typedef enum { + STATE_STARTED = 0, /* default state */ + STATE_KEY_PRESSED = 1, /* key was pressed, show unlock indicator */ + STATE_KEY_ACTIVE = 2, /* a key was pressed recently, highlight part + of the unlock indicator. */ + STATE_BACKSPACE_ACTIVE = 3 /* backspace was pressed recently, highlight + part of the unlock indicator in red. */ +} unlock_state_t; + +typedef enum { + STATE_PAM_IDLE = 0, /* no PAM interaction at the moment */ + STATE_PAM_VERIFY = 1, /* currently verifying the password via PAM */ + STATE_PAM_WRONG = 2 /* the password was wrong */ +} pam_state_t; + +xcb_pixmap_t draw_image(uint32_t* resolution); +void redraw_screen(); + +#endif diff --git a/xcb.c b/xcb.c index 65493a3..d27b98c 100644 --- a/xcb.c +++ b/xcb.c @@ -20,6 +20,9 @@ #include "cursors.h" +xcb_connection_t *conn; +xcb_screen_t *screen; + #define curs_invisible_width 8 #define curs_invisible_height 8 diff --git a/xcb.h b/xcb.h index 54d667e..e4f700c 100644 --- a/xcb.h +++ b/xcb.h @@ -3,6 +3,9 @@ #include +extern xcb_connection_t *conn; +extern xcb_screen_t *screen; + xcb_visualtype_t *get_root_visual_type(xcb_screen_t *s); xcb_pixmap_t create_bg_pixmap(xcb_connection_t *conn, xcb_screen_t *scr, u_int32_t *resolution, char *color); xcb_window_t open_fullscreen_window(xcb_connection_t *conn, xcb_screen_t *scr, char *color, xcb_pixmap_t pixmap);