xserver-multidpi/hw/kdrive/ephyr/hostx.h
Keith Packard c17a417945 ephyr: Process queued X events before blocking [v2]
If we end up reading all pending X events in the course of other server
execution, then our notify FD callback won't get invoked and we won't
process them. Fix this by noting that there are queued events in the
block handler, setting the poll timeout to zero and queuing a work
proc to clear the event queue.

v2: use a work proc to clear the event queue rather than doing it in
    the block handler directly.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2016-06-20 11:55:15 -07:00

194 lines
4.7 KiB
C

/*
* Xephyr - A kdrive X server thats runs in a host X window.
* Authored by Matthew Allum <mallum@o-hand.com>
*
* Copyright © 2004 Nokia
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Nokia not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Nokia makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* NOKIA DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL NOKIA BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _XLIBS_STUFF_H_
#define _XLIBS_STUFF_H_
#include <X11/X.h>
#include <X11/Xmd.h>
#include <xcb/xcb.h>
#include <xcb/render.h>
#include "ephyr.h"
#define EPHYR_WANT_DEBUG 0
#if (EPHYR_WANT_DEBUG)
#define EPHYR_DBG(x, a...) \
fprintf(stderr, __FILE__ ":%d,%s() " x "\n", __LINE__, __func__, ##a)
#else
#define EPHYR_DBG(x, a...) do {} while (0)
#endif
typedef struct EphyrHostXVars EphyrHostXVars;
typedef struct {
VisualID visualid;
int screen;
int depth;
int class;
unsigned long red_mask;
unsigned long green_mask;
unsigned long blue_mask;
int colormap_size;
int bits_per_rgb;
} EphyrHostVisualInfo;
typedef struct {
int x, y;
int width, height;
int visualid;
} EphyrHostWindowAttributes;
typedef struct {
int x, y, width, height;
} EphyrBox;
typedef struct {
short x1, y1, x2, y2;
} EphyrRect;
int
hostx_want_screen_geometry(KdScreenInfo *screen, int *width, int *height, int *x, int *y);
int
hostx_want_host_cursor(void);
void
hostx_use_sw_cursor(void);
xcb_cursor_t
hostx_get_empty_cursor(void);
void
hostx_get_output_geometry(const char *output,
int *x, int *y,
int *width, int *height);
void
hostx_use_fullscreen(void);
int
hostx_want_fullscreen(void);
int
hostx_want_preexisting_window(KdScreenInfo *screen);
void
hostx_use_preexisting_window(unsigned long win_id);
void
hostx_use_resname(char *name, int fromcmd);
void
hostx_set_title(char *name);
void
hostx_handle_signal(int signum);
int
hostx_init(void);
void
hostx_add_screen(KdScreenInfo *screen, unsigned long win_id, int screen_num, Bool use_geometry, const char *output);
void
hostx_set_display_name(char *name);
void
hostx_set_screen_number(KdScreenInfo *screen, int number);
void
hostx_set_win_title(KdScreenInfo *screen, const char *extra_text);
int
hostx_get_depth(void);
int
hostx_get_server_depth(KdScreenInfo *screen);
int
hostx_get_bpp(KdScreenInfo *screen);
void
hostx_get_visual_masks(KdScreenInfo *screen,
CARD32 *rmsk, CARD32 *gmsk, CARD32 *bmsk);
void
hostx_set_cmap_entry(ScreenPtr pScreen, unsigned char idx,
unsigned char r, unsigned char g, unsigned char b);
void *hostx_screen_init(KdScreenInfo *screen,
int x, int y,
int width, int height, int buffer_height,
int *bytes_per_line, int *bits_per_pixel);
void
hostx_paint_rect(KdScreenInfo *screen,
int sx, int sy, int dx, int dy, int width, int height);
Bool
hostx_load_keymap(KeySymsPtr keySyms, CARD8 *modmap, XkbControlsPtr controls);
void
hostx_size_set_from_configure(Bool);
xcb_connection_t *
hostx_get_xcbconn(void);
xcb_generic_event_t *
hostx_get_event(Bool queued_only);
Bool
hostx_has_queued_event(void);
int
hostx_get_screen(void);
int
hostx_get_window(int a_screen_number);
int
hostx_get_window_attributes(int a_window, EphyrHostWindowAttributes * a_attr);
int
hostx_get_visuals_info(EphyrHostVisualInfo ** a_visuals, int *a_num_entries);
int hostx_create_window(int a_screen_number,
EphyrBox * a_geometry,
int a_visual_id, int *a_host_win /*out parameter */ );
int hostx_destroy_window(int a_win);
int hostx_set_window_geometry(int a_win, EphyrBox * a_geo);
int hostx_set_window_bounding_rectangles(int a_window,
EphyrRect * a_rects, int a_num_rects);
int hostx_has_extension(xcb_extension_t *extension);
int hostx_get_fd(void);
#endif /*_XLIBS_STUFF_H_*/