C++ xcb_free_pixmap函数代码示例

void xcbosd_resize(xcbosd *osd, int width, int height)
{
  assert (osd);
  assert (width);
  assert (height);

  lprintf("resize old:%dx%d new:%dx%d\n", osd->width, osd->height, width, height );

  osd->width = width;
  osd->height = height;

  xcb_free_pixmap(osd->connection, osd->bitmap);
  switch(osd->mode) {
    case XCBOSD_SHAPED: {
      unsigned int window_config[] = { osd->width, osd->height };
      xcb_configure_window(osd->connection, osd->u.shaped.window, XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT, window_config);
      xcb_free_pixmap(osd->connection, osd->u.shaped.mask_bitmap);
      osd->u.shaped.mask_bitmap = xcb_generate_id(osd->connection);
      xcb_create_pixmap(osd->connection, 1, osd->u.shaped.mask_bitmap, osd->u.shaped.window, osd->width, osd->height);
      osd->bitmap = xcb_generate_id(osd->connection);
      xcb_create_pixmap(osd->connection, osd->depth, osd->bitmap, osd->u.shaped.window, osd->width, osd->height);
      break;
      }
    case XCBOSD_COLORKEY:
      osd->bitmap = xcb_generate_id(osd->connection);
      xcb_create_pixmap(osd->connection, osd->depth, osd->bitmap, osd->window, osd->width, osd->height);
      break;
  }

  osd->clean = UNDEFINED;
  xcbosd_clear(osd);
}

x_client_icon::~x_client_icon(void)
{
  m_c.detach(XCB_PROPERTY_NOTIFY, this);
  xcb_free_pixmap(m_c(), m_net_wm_icon);
  xcb_free_pixmap(m_c(), m_wm_hints_icon);
  xcb_free_pixmap(m_c(), m_default_icon);
}

 //______________________________________________
 void ShadowHelper::reset( void )
 {
     #if OXYGEN_HAVE_X11
     if( _helper.isX11() )
     {
         // round pixmaps
         foreach( const quint32& value, _pixmaps  ) xcb_free_pixmap( _helper.connection(), value );
         foreach( const quint32& value, _dockPixmaps  ) xcb_free_pixmap( _helper.connection(), value );
     }

static void DeleteBuffers(vout_display_t *vd)
{
    vout_display_sys_t *sys = vd->sys;
    xcb_connection_t *conn = sys->conn;

    xcb_render_free_picture(conn, sys->picture.scale);
    xcb_render_free_picture(conn, sys->picture.crop);
    xcb_free_pixmap(conn, sys->drawable.scale);
    xcb_free_pixmap(conn, sys->drawable.crop);
}

void X11WindowedBackend::createCursor(const QImage &img, const QPoint &hotspot)
{
    const xcb_pixmap_t pix = xcb_generate_id(m_connection);
    const xcb_gcontext_t gc = xcb_generate_id(m_connection);
    const xcb_cursor_t cid = xcb_generate_id(m_connection);

    xcb_create_pixmap(m_connection, 32, pix, m_screen->root, img.width(), img.height());
    xcb_create_gc(m_connection, gc, pix, 0, nullptr);

    xcb_put_image(m_connection, XCB_IMAGE_FORMAT_Z_PIXMAP, pix, gc, img.width(), img.height(), 0, 0, 0, 32, img.byteCount(), img.constBits());

    XRenderPicture pic(pix, 32);
    xcb_render_create_cursor(m_connection, cid, pic, hotspot.x(), hotspot.y());
    for (auto it = m_windows.constBegin(); it != m_windows.constEnd(); ++it) {
        xcb_change_window_attributes(m_connection, (*it).window, XCB_CW_CURSOR, &cid);
    }

    xcb_free_pixmap(m_connection, pix);
    xcb_free_gc(m_connection, gc);
    if (m_cursor) {
        xcb_free_cursor(m_connection, m_cursor);
    }
    m_cursor = cid;
    xcb_flush(m_connection);
    markCursorAsRendered();
}

static EGLBoolean
dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
{
   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
   struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);

   (void) drv;

   if (!_eglPutSurface(surf))
      return EGL_TRUE;

   (*dri2_dpy->core->destroyDrawable)(dri2_surf->dri_drawable);
   
   if (dri2_dpy->dri2) {
      xcb_dri2_destroy_drawable (dri2_dpy->conn, dri2_surf->drawable);
   } else {
      assert(dri2_dpy->swrast);
      swrastDestroyDrawable(dri2_dpy, dri2_surf);
   }

   if (surf->Type == EGL_PBUFFER_BIT)
      xcb_free_pixmap (dri2_dpy->conn, dri2_surf->drawable);

   free(surf);

   return EGL_TRUE;
}

static void
drawin_update_drawing(drawin_t *w)
{
    /* If this drawin isn't visible, we don't need an up-to-date cairo surface
     * for it. (drawin_map() will later make sure we are called again) */
    if(!w->visible)
        return;
    /* Clean up old stuff */
    if(w->surface)
    {
        /* In case lua still got a reference to the surface, it still won't be
         * able to do anything with it because we finish it. */
        cairo_surface_finish(w->surface);
        cairo_surface_destroy(w->surface);
    }
    if(w->pixmap)
        xcb_free_pixmap(globalconf.connection, w->pixmap);

    /* Create a pixmap */
    xcb_screen_t *s = globalconf.screen;
    w->pixmap = xcb_generate_id(globalconf.connection);
    xcb_create_pixmap(globalconf.connection, globalconf.default_depth, w->pixmap, s->root,
                      w->geometry.width, w->geometry.height);
    /* and create a surface for that pixmap */
    w->surface = cairo_xcb_surface_create(globalconf.connection,
                                          w->pixmap, globalconf.visual,
                                          w->geometry.width, w->geometry.height);
    /* Make sure the pixmap doesn't contain garbage by filling it with black */
    cairo_t *cr = cairo_create(w->surface);
    cairo_set_operator(cr, CAIRO_OPERATOR_CLEAR);
    cairo_paint(cr);
    cairo_destroy(cr);
}

static void
_cairo_boilerplate_xcb_cleanup (void *closure)
{
    xcb_target_closure_t *xtc = closure;
    cairo_status_t status;

    cairo_surface_finish (xtc->surface);
    if (xtc->is_pixmap)
	xcb_free_pixmap (xtc->c, xtc->drawable);
    else
	xcb_destroy_window (xtc->c, xtc->drawable);
    cairo_surface_destroy (xtc->surface);

    cairo_device_finish (xtc->device);
    cairo_device_destroy (xtc->device);

    /* First synchronize with the X server to make sure there are no more errors
     * in-flight which we would miss otherwise */
    _cairo_boilerplate_xcb_sync_server (xtc);
    status = _cairo_boilerplate_xcb_handle_errors (xtc);
    assert (status == CAIRO_STATUS_SUCCESS);

    xcb_disconnect (xtc->c);

    free (xtc);
}

static void _destroy_similar (void *closure)
{
    struct similar *similar = closure;

    xcb_free_pixmap (similar->connection, similar->pixmap);
    free (similar);
}

static void
drawin_wipe(drawin_t *w)
{
    /* The drawin must already be unmapped, else it
     * couldn't be garbage collected -> no unmap needed */
    p_delete(&w->cursor);
    if(w->surface)
    {
        /* Make sure that cairo knows that this surface can't be unused anymore.
         * This is needed since lua could still have a reference to it. */
        cairo_surface_finish(w->surface);
        cairo_surface_destroy(w->surface);
        w->surface = NULL;
    }
    if(w->window)
    {
        /* Activate BMA */
        client_ignore_enterleave_events();
        /* Make sure we don't accidentally kill the systray window */
        drawin_systray_kickout(w);
        xcb_destroy_window(globalconf.connection, w->window);
        /* Deactivate BMA */
        client_restore_enterleave_events();
        w->window = XCB_NONE;
    }
    if(w->pixmap)
    {
        xcb_free_pixmap(globalconf.connection, w->pixmap);
        w->pixmap = XCB_NONE;
    }
}

void
_cairo_xcb_connection_free_pixmap (cairo_xcb_connection_t *connection,
				   xcb_pixmap_t pixmap)
{
    xcb_free_pixmap (connection->xcb_connection, pixmap);
    _cairo_xcb_connection_put_xid (connection, pixmap);
}

/*
 * Calls draw_image on a new pixmap and swaps that with the current pixmap
 *
 */
void redraw_screen(void) {

    /* avoid drawing if monitor state is not on */
    if (dpms_capable) {
        xcb_dpms_info_reply_t *dpms_info =
            xcb_dpms_info_reply(conn,xcb_dpms_info(conn), NULL);
        if (dpms_info) {
            /* monitor is off when DPMS state is enabled and power level is not
             * DPMS_MODE_ON */
            uint8_t monitor_off = dpms_info->state
                && dpms_info->power_level != XCB_DPMS_DPMS_MODE_ON;
            free(dpms_info);
            if (monitor_off)
                return;
        }
    }

    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, last_resolution[0], last_resolution[1]);
    xcb_free_pixmap(conn, bg_pixmap);
    xcb_flush(conn);
}

void xcbosd_destroy(xcbosd *osd)
{

  assert (osd);

  xcb_free_gc(osd->connection, osd->gc);
  xcb_free_pixmap(osd->connection, osd->bitmap);
  xcb_free_colormap(osd->connection, osd->cmap);
  if(osd->mode==XCBOSD_SHAPED) {
    xcb_free_gc(osd->connection, osd->u.shaped.mask_gc);
    xcb_free_gc(osd->connection, osd->u.shaped.mask_gc_back);
    xcb_free_pixmap(osd->connection, osd->u.shaped.mask_bitmap);
    xcb_destroy_window(osd->connection, osd->u.shaped.window);
  }

  free (osd);
}

void
_cairo_boilerplate_xcb_cleanup (void *closure)
{
    xcb_target_closure_t *xtc = closure;

    xcb_free_pixmap (xtc->c, xtc->pixmap);
    xcb_disconnect (xtc->c);
    free (xtc);
}

static void
_xcwm_window_composite_pixmap_release(xcwm_window_t *window)
{
  if (window->composite_pixmap_id)
    {
      xcb_free_pixmap(window->context->conn, window->composite_pixmap_id);
      window->composite_pixmap_id = 0;
    }
}