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Imported Upstream version 0.13.2+dsfg1

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Sebastian Ramacher 2016-02-24 00:16:51 +01:00
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plugins/linux-capture/xhelpers.h Normal file
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/*
Copyright (C) 2014 by Leonhard Oelke <leonhard@in-verted.de>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
#include <xcb/shm.h>
#include <xcb/xproto.h>
#include <obs.h>
typedef struct {
xcb_connection_t *xcb;
xcb_shm_seg_t seg;
int shmid;
uint8_t *data;
} xcb_shm_t;
/**
* Check for Xinerama extension
*
* @return true if xinerama is available and active
*/
bool xinerama_is_active(xcb_connection_t *xcb);
/**
* Get the number of Xinerama screens
*
* @return number of screens
*/
int xinerama_screen_count(xcb_connection_t *xcb);
/**
* Get screen geometry for a Xinerama screen
*
* @note On error the passed coordinates/sizes will be set to 0.
*
* @param xcb xcb connection
* @param screen screen number to get geometry for
* @param x x-coordinate of the screen
* @param y y-coordinate of the screen
* @param w width of the screen
* @param h height of the screen
*
* @return < 0 on error
*/
int xinerama_screen_geo(xcb_connection_t *xcb, int_fast32_t screen,
int_fast32_t *x, int_fast32_t *y,
int_fast32_t *w, int_fast32_t *h);
/**
* Get screen geometry for a X11 screen
*
* @note On error the passed sizes will be set to 0.
*
* @param xcb xcb connection
* @param screen screen number to get geometry for
* @param w width of the screen
* @param h height of the screen
*
* @return < 0 on error
*/
int x11_screen_geo(xcb_connection_t *xcb, int_fast32_t screen,
int_fast32_t *w, int_fast32_t *h);
/**
* Attach a shared memory segment to the X-Server
*
* @param xcb xcb connection
* @param w width of the captured screen
* @param h height of the captured screen
*
* @return NULL on error
*/
xcb_shm_t *xshm_xcb_attach(xcb_connection_t *xcb, const int w, const int h);
/**
* Detach a shared memory segment
*/
void xshm_xcb_detach(xcb_shm_t *shm);
/**
* Get screen by id for a xcb connection
*
* @param xcb xcb connection
* @param screen id of the screen
* @return screen info structure
*/
xcb_screen_t *xcb_get_screen(xcb_connection_t *xcb, int screen);
#ifdef __cplusplus
}
#endif