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More error checking, bugfix for mplayer (use visual CopyFromParent)

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This commit is contained in:
Michael Stapelberg
2009-02-14 03:46:20 +01:00
parent fb4c851e2a
commit 031cf4ccda
3 changed files with 12 additions and 8 deletions
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14
src/xcb.c
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@ -14,6 +14,7 @@
#include <xcb/xcb.h>
/* All the helper functions needed for efficiently using XCB */
#include "util.h"
/*
* Returns the colorpixel to use for the given hex color (think of HTML).
@ -25,6 +26,7 @@
*
*/
uint32_t get_colorpixel(xcb_connection_t *conn, xcb_window_t window, char *hex) {
/* TODO: We need to store the colorpixels per child to remove these unnecessary requests every time */
#define RGB_8_TO_16(i) (65535 * ((i) & 0xFF) / 255)
char strgroups[3][3] = {{hex[1], hex[2], '\0'},
{hex[3], hex[4], '\0'},
@ -35,18 +37,20 @@ uint32_t get_colorpixel(xcb_connection_t *conn, xcb_window_t window, char *hex)
xcb_screen_t *root_screen = xcb_setup_roots_iterator(xcb_get_setup(conn)).data;
xcb_colormap_t colormapId = xcb_generate_id(conn);
xcb_create_colormap(conn, XCB_COLORMAP_ALLOC_NONE, colormapId, window, root_screen->root_visual);
xcb_colormap_t colormap_id = xcb_generate_id(conn);
xcb_void_cookie_t cookie = xcb_create_colormap_checked(conn, XCB_COLORMAP_ALLOC_NONE,
colormap_id, window, root_screen->root_visual);
check_error(conn, cookie, "Could not create colormap");
xcb_alloc_color_reply_t *reply = xcb_alloc_color_reply(conn,
xcb_alloc_color(conn, colormapId, rgb16[0], rgb16[1], rgb16[2]), NULL);
xcb_alloc_color(conn, colormap_id, rgb16[0], rgb16[1], rgb16[2]), NULL);
if (!reply) {
printf("color fail\n");
printf("Could not allocate color\n");
exit(1);
}
uint32_t pixel = reply->pixel;
free(reply);
xcb_free_colormap(conn, colormapId);
xcb_free_colormap(conn, colormap_id);
return pixel;
}