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Commit c624c5f7 authored by Eric Petit's avatar Eric Petit
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ALL: splitted screen module (needed as BeOS requires C++)

parent ca9c15af
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Showing with 650 additions and 5 deletions
configure.ac
View file @ c624c5f7
......@@ -1622,7 +1622,14 @@ dnl
AC_ARG_ENABLE(screen,
[ --enable-screen Screen capture support (default enabled)])
if test "${enable_screen}" != "no" && test "${SYS}" != "darwin"; then
if test "${SYS}" != "mingw32"; then
if test "${SYS}" = "mingw32"; then
VLC_ADD_PLUGINS([screen])
VLC_ADD_LDFLAGS([screen],[-lgdi32])
elif test "${SYS}" = "beos"; then
VLC_ADD_PLUGINS([screen])
VLC_ADD_CXXFLAGS([screen],[])
VLC_ADD_LDFLAGS([screen],[-lbe])
else
CPPFLAGS="${CPPFLAGS_save} -I${x_includes}"
AC_CHECK_HEADERS(X11/Xlib.h, [
VLC_ADD_PLUGINS([screen])
......@@ -1630,9 +1637,6 @@ if test "${enable_screen}" != "no" && test "${SYS}" != "darwin"; then
VLC_ADD_CPPFLAGS([screen],[-I${x_includes}])
])
CPPFLAGS="${CPPFLAGS_save}"
else
VLC_ADD_PLUGINS([screen])
VLC_ADD_LDFLAGS([screen],[-lgdi32])
fi
fi
......@@ -3936,6 +3940,7 @@ AC_CONFIG_FILES([
modules/access/cdda/Makefile
modules/access/vcd/Makefile
modules/access/vcdx/Makefile
modules/access/screen/Makefile
modules/access_output/Makefile
modules/audio_filter/Makefile
modules/audio_filter/channel_mixer/Makefile
......
modules/access/Modules.am
View file @ c624c5f7
......@@ -7,7 +7,6 @@ SOURCES_access_ftp = ftp.c
SOURCES_dvdnav = dvdnav.c
SOURCES_dvdread = dvdread.c
SOURCES_slp = slp.c
SOURCES_screen = screen.c
SOURCES_cdda = \
cdda.c \
vcd/cdrom.c \
......
modules/access/screen/Modules.am 0 → 100644
View file @ c624c5f7
if HAVE_WIN32
screen_extra = win32.c
else
if HAVE_BEOS
screen_extra = beos.cpp
else
screen_extra = x11.c
endif
endif
SOURCES_screen = \
screen.c \
screen.h \
$(screen_extra) \
$(NULL)
modules/access/screen/beos.cpp 0 → 100644
View file @ c624c5f7
/*****************************************************************************
* beos.cpp: Screen capture module.
*****************************************************************************
* Copyright (C) 2004 VideoLAN
* $Id: screen.c 8284 2004-07-26 10:27:55Z gbazin $
*
* Authors: Eric Petit <titer@m0k.org>
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
#include <stdlib.h>
#include <vlc/vlc.h>
#include <vlc/input.h>
#include <Screen.h>
#include <Bitmap.h>
extern "C"
{
#include "screen.h"
struct screen_data_t
{
BScreen * p_screen;
BBitmap * p_bitmap;
};
int screen_InitCapture( demux_t *p_demux )
{
demux_sys_t *p_sys = p_demux->p_sys;
screen_data_t *p_data;
BRect rect;
p_sys->p_data = p_data =
(screen_data_t *)malloc( sizeof( screen_data_t ) );
p_data->p_screen = new BScreen();
rect = p_data->p_screen->Frame();
p_data->p_bitmap = new BBitmap( rect, p_data->p_screen->ColorSpace() );
/* FIXME */
es_format_Init( &p_sys->fmt, VIDEO_ES, VLC_FOURCC('R','V','3','2') );
p_sys->fmt.video.i_width = (int)rect.Width();
p_sys->fmt.video.i_height = (int)rect.Height();
p_sys->fmt.video.i_bits_per_pixel = 32;
return VLC_SUCCESS;
}
int screen_CloseCapture( demux_t *p_demux )
{
demux_sys_t *p_sys = p_demux->p_sys;
screen_data_t *p_data = p_sys->p_data;
delete p_data->p_bitmap;
delete p_data->p_screen;
free( p_data );
return VLC_SUCCESS;
}
block_t *screen_Capture( demux_t *p_demux )
{
demux_sys_t *p_sys = p_demux->p_sys;
screen_data_t *p_data = p_sys->p_data;
block_t *p_block;
p_block = block_New( p_demux, 4 * p_sys->fmt.video.i_width *
p_sys->fmt.video.i_height );
p_data->p_screen->ReadBitmap( p_data->p_bitmap );
for( unsigned i = 0; i < p_sys->fmt.video.i_height; i++ )
{
memcpy( p_block->p_buffer + i * 4 * p_sys->fmt.video.i_width,
(uint8_t *) p_data->p_bitmap->Bits() +
i * p_data->p_bitmap->BytesPerRow(),
p_sys->fmt.video.i_width );
}
return p_block;
}
} /* extern "C" */
modules/access/screen.c → modules/access/screen/screen.c
View file @ c624c5f7
......@@ -29,10 +29,7 @@
#include <vlc/vlc.h>
#include <vlc/input.h>
#ifndef WIN32
# include <X11/Xlib.h>
# include <X11/Xutil.h>
#endif
#include "screen.h"
/*****************************************************************************
* Module descriptor
......@@ -63,34 +60,9 @@ vlc_module_end();
/*****************************************************************************
* Local prototypes
*****************************************************************************/
struct demux_sys_t
{
es_format_t fmt;
es_out_id_t *es;
float f_fps;
mtime_t i_next_date;
int i_incr;
#ifndef WIN32
Display *p_display;
#else
HDC hdc_src;
HDC hdc_dst;
HBITMAP hbmp;
HGDIOBJ hgdi_backup;
uint8_t *p_buffer;
#endif
};
static int Control( demux_t *, int, va_list );
static int Demux ( demux_t * );
static int InitCapture ( demux_t * );
static int CloseCapture( demux_t * );
static block_t *Capture( demux_t * );
/*****************************************************************************
* DemuxOpen:
*****************************************************************************/
......@@ -106,7 +78,7 @@ static int Open( vlc_object_t *p_this )
p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
memset( p_sys, 0, sizeof( demux_sys_t ) );
if( InitCapture( p_demux ) != VLC_SUCCESS )
if( screen_InitCapture( p_demux ) != VLC_SUCCESS )
{
free( p_sys );
return VLC_EGENERIC;
......@@ -138,7 +110,7 @@ static void Close( vlc_object_t *p_this )
demux_t *p_demux = (demux_t*)p_this;
demux_sys_t *p_sys = p_demux->p_sys;
CloseCapture( p_demux );
screen_CloseCapture( p_demux );
free( p_sys );
}
......@@ -157,7 +129,7 @@ static int Demux( demux_t *p_demux )
p_sys->i_next_date += p_sys->i_incr;
mwait( p_sys->i_next_date );
p_block = Capture( p_demux );
p_block = screen_Capture( p_demux );
if( !p_block ) return 0;
p_block->i_dts = p_block->i_pts = p_sys->i_next_date;
......@@ -170,244 +142,6 @@ static int Demux( demux_t *p_demux )
return 1;
}
/*****************************************************************************
* Platform dependant capture functions
*****************************************************************************/
#ifdef WIN32
static int InitCapture( demux_t *p_demux )
{
demux_sys_t *p_sys = p_demux->p_sys;
int i_chroma, i_bits_per_pixel;
BITMAPINFO bmi;
/* Get the device context for the whole screen */
p_sys->hdc_src = CreateDC( "DISPLAY", NULL, NULL, NULL );
if( !p_sys->hdc_src )
{
msg_Err( p_demux, "cannot get device context" );
return VLC_EGENERIC;
}
p_sys->hdc_dst = CreateCompatibleDC( p_sys->hdc_src );
if( !p_sys->hdc_dst )
{
msg_Err( p_demux, "cannot get compat device context" );
ReleaseDC( 0, p_sys->hdc_src );
return VLC_EGENERIC;
}
i_bits_per_pixel = GetDeviceCaps( p_sys->hdc_src, BITSPIXEL );
switch( i_bits_per_pixel )
{
case 8: /* FIXME: set the palette */
i_chroma = VLC_FOURCC('R','G','B','2'); break;
case 15:
i_chroma = VLC_FOURCC('R','V','1','5'); break;
case 16:
i_chroma = VLC_FOURCC('R','V','1','6'); break;
case 24:
i_chroma = VLC_FOURCC('R','V','2','4'); break;
case 32:
i_chroma = VLC_FOURCC('R','V','3','2'); break;
default:
msg_Err( p_demux, "unknown screen depth %i",
p_sys->fmt.video.i_bits_per_pixel );
ReleaseDC( 0, p_sys->hdc_src );
ReleaseDC( 0, p_sys->hdc_dst );
return VLC_EGENERIC;
}
#if 1 /* For now we force RV24 because of chroma inversion in the other cases*/
i_chroma = VLC_FOURCC('R','V','2','4');
i_bits_per_pixel = 24;
#endif
es_format_Init( &p_sys->fmt, VIDEO_ES, i_chroma );
p_sys->fmt.video.i_width = GetDeviceCaps( p_sys->hdc_src, HORZRES );
p_sys->fmt.video.i_height = GetDeviceCaps( p_sys->hdc_src, VERTRES );
p_sys->fmt.video.i_bits_per_pixel = i_bits_per_pixel;
/* Create the bitmap info header */
bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
bmi.bmiHeader.biWidth = p_sys->fmt.video.i_width;
bmi.bmiHeader.biHeight = - p_sys->fmt.video.i_height;
bmi.bmiHeader.biPlanes = 1;
bmi.bmiHeader.biBitCount = p_sys->fmt.video.i_bits_per_pixel;
bmi.bmiHeader.biCompression = BI_RGB;
bmi.bmiHeader.biSizeImage = 0;
bmi.bmiHeader.biXPelsPerMeter =
bmi.bmiHeader.biYPelsPerMeter = 0;
bmi.bmiHeader.biClrUsed = 0;
bmi.bmiHeader.biClrImportant = 0;
/* Create the bitmap storage space */
p_sys->hbmp = CreateDIBSection( p_sys->hdc_dst, (BITMAPINFO *)&bmi,
DIB_RGB_COLORS, (void **)&p_sys->p_buffer, NULL, 0 );
if( !p_sys->hbmp || !p_sys->p_buffer )
{
msg_Err( p_demux, "cannot create bitmap" );
if( p_sys->hbmp ) DeleteObject( p_sys->hbmp );
ReleaseDC( 0, p_sys->hdc_src );
DeleteDC( p_sys->hdc_dst );
return VLC_EGENERIC;
}
/* Select the bitmap into the compatible DC */
p_sys->hgdi_backup = SelectObject( p_sys->hdc_dst, p_sys->hbmp );
if( !p_sys->hgdi_backup )
{
msg_Err( p_demux, "cannot select bitmap" );
}
return VLC_SUCCESS;
}
#else
static int InitCapture( demux_t *p_demux )
{
demux_sys_t *p_sys = p_demux->p_sys;
XWindowAttributes win_info;
int i_chroma;
/* Open the display */
p_sys->p_display = XOpenDisplay( NULL );
if( !p_sys->p_display )
{
msg_Err( p_demux, "cannot open display" );
return VLC_EGENERIC;
}
/* Get the parameters of the root window */
if( !XGetWindowAttributes( p_sys->p_display,
DefaultRootWindow( p_sys->p_display ),
&win_info ) )
{
msg_Err( p_demux, "can't get root window attributes" );
XCloseDisplay( p_sys->p_display );
return VLC_EGENERIC;
}
switch( win_info.depth )
{
case 8: /* FIXME: set the palette */
i_chroma = VLC_FOURCC('R','G','B','2'); break;
case 15:
i_chroma = VLC_FOURCC('R','V','1','5'); break;
case 16:
i_chroma = VLC_FOURCC('R','V','1','6'); break;
case 24:
i_chroma = VLC_FOURCC('R','V','2','4'); break;
case 32:
i_chroma = VLC_FOURCC('R','V','3','2'); break;
default:
msg_Err( p_demux, "unknown screen depth %i", win_info.depth );
XCloseDisplay( p_sys->p_display );
return VLC_EGENERIC;
}
es_format_Init( &p_sys->fmt, VIDEO_ES, i_chroma );
p_sys->fmt.video.i_width = win_info.width;
p_sys->fmt.video.i_height = win_info.height;
p_sys->fmt.video.i_bits_per_pixel = win_info.depth;
#if 0
win_info.visual->red_mask;
win_info.visual->green_mask;
win_info.visual->blue_mask;
win_info.visual->bits_per_rgb;
#endif
return VLC_SUCCESS;
}
#endif
#ifdef WIN32
static int CloseCapture( demux_t *p_demux )
{
demux_sys_t *p_sys = p_demux->p_sys;
SelectObject( p_sys->hdc_dst, p_sys->hgdi_backup );
DeleteObject( p_sys->hbmp );
DeleteDC( p_sys->hdc_dst );
ReleaseDC( 0, p_sys->hdc_src );
return VLC_SUCCESS;
}
#else
static int CloseCapture( demux_t *p_demux )
{
demux_sys_t *p_sys = p_demux->p_sys;
XCloseDisplay( p_sys->p_display );
return VLC_SUCCESS;
}
#endif
#ifdef WIN32
static block_t *Capture( demux_t *p_demux )
{
demux_sys_t *p_sys = p_demux->p_sys;
block_t *p_block;
int i_size;
if( !BitBlt( p_sys->hdc_dst, 0, 0,
p_sys->fmt.video.i_width, p_sys->fmt.video.i_height,
p_sys->hdc_src, 0, 0, SRCCOPY ) )
{
msg_Err( p_demux, "error during BitBlt()" );
return NULL;
}
i_size = (p_sys->fmt.video.i_bits_per_pixel + 7) / 8 *
p_sys->fmt.video.i_width * p_sys->fmt.video.i_height;
if( !( p_block = block_New( p_demux, i_size ) ) )
{
msg_Warn( p_demux, "cannot get block" );
return 0;
}
memcpy( p_block->p_buffer, p_sys->p_buffer, i_size );
return p_block;
}
#else
static block_t *Capture( demux_t *p_demux )
{
demux_sys_t *p_sys = p_demux->p_sys;
block_t *p_block;
XImage *image;
int i_size;
image = XGetImage( p_sys->p_display, DefaultRootWindow( p_sys->p_display ),
0, 0, p_sys->fmt.video.i_width,
p_sys->fmt.video.i_height, AllPlanes, ZPixmap );
if( !image )
{
msg_Warn( p_demux, "cannot get image" );
return 0;
}
i_size = image->bytes_per_line * image->height;
if( !( p_block = block_New( p_demux, i_size ) ) )
{
msg_Warn( p_demux, "cannot get block" );
XDestroyImage( image );
return 0;
}
memcpy( p_block->p_buffer, image->data, i_size );
XDestroyImage( image );
return p_block;
}
#endif
/*****************************************************************************
* Control:
*****************************************************************************/
......
modules/access/screen/screen.h 0 → 100644
View file @ c624c5f7
/*****************************************************************************
* screen.h: Screen capture module.
*****************************************************************************
* Copyright (C) 2004 VideoLAN
* $Id$
*
* Authors: Gildas Bazin <gbazin@videolan.org>
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
typedef struct screen_data_t screen_data_t;
struct demux_sys_t
{
es_format_t fmt;
es_out_id_t *es;
float f_fps;
mtime_t i_next_date;
int i_incr;
screen_data_t *p_data;
};
int screen_InitCapture ( demux_t * );
int screen_CloseCapture( demux_t * );
block_t *screen_Capture( demux_t * );
modules/access/screen/win32.c 0 → 100644
View file @ c624c5f7
/*****************************************************************************
* win32.c: Screen capture module.
*****************************************************************************
* Copyright (C) 2004 VideoLAN
* $Id$
*
* Authors: Gildas Bazin <gbazin@videolan.org>
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#include <stdlib.h>
#include <vlc/vlc.h>
#include <vlc/input.h>
#include "screen.h"
struct screen_data_t
{
HDC hdc_src;
HDC hdc_dst;
HBITMAP hbmp;
HGDIOBJ hgdi_backup;
uint8_t *p_buffer;
};
int screen_InitCapture( demux_t *p_demux )
{
demux_sys_t *p_sys = p_demux->p_sys;
screen_data_t *p_data;
int i_chroma, i_bits_per_pixel;
BITMAPINFO bmi;
p_sys->p_data = p_data = malloc( sizeof( screen_data_t ) );
/* Get the device context for the whole screen */
p_data->hdc_src = CreateDC( "DISPLAY", NULL, NULL, NULL );
if( !p_data->hdc_src )
{
msg_Err( p_demux, "cannot get device context" );
return VLC_EGENERIC;
}
p_data->hdc_dst = CreateCompatibleDC( p_data->hdc_src );
if( !p_data->hdc_dst )
{
msg_Err( p_demux, "cannot get compat device context" );
ReleaseDC( 0, p_data->hdc_src );
return VLC_EGENERIC;
}
i_bits_per_pixel = GetDeviceCaps( p_data->hdc_src, BITSPIXEL );
switch( i_bits_per_pixel )
{
case 8: /* FIXME: set the palette */
i_chroma = VLC_FOURCC('R','G','B','2'); break;
case 15:
i_chroma = VLC_FOURCC('R','V','1','5'); break;
case 16:
i_chroma = VLC_FOURCC('R','V','1','6'); break;
case 24:
i_chroma = VLC_FOURCC('R','V','2','4'); break;
case 32:
i_chroma = VLC_FOURCC('R','V','3','2'); break;
default:
msg_Err( p_demux, "unknown screen depth %i",
p_sys->fmt.video.i_bits_per_pixel );
ReleaseDC( 0, p_data->hdc_src );
ReleaseDC( 0, p_data->hdc_dst );
return VLC_EGENERIC;
}
#if 1 /* For now we force RV24 because of chroma inversion in the other cases*/
i_chroma = VLC_FOURCC('R','V','2','4');
i_bits_per_pixel = 24;
#endif
es_format_Init( &p_sys->fmt, VIDEO_ES, i_chroma );
p_sys->fmt.video.i_width = GetDeviceCaps( p_data->hdc_src, HORZRES );
p_sys->fmt.video.i_height = GetDeviceCaps( p_data->hdc_src, VERTRES );
p_sys->fmt.video.i_bits_per_pixel = i_bits_per_pixel;
/* Create the bitmap info header */
bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
bmi.bmiHeader.biWidth = p_sys->fmt.video.i_width;
bmi.bmiHeader.biHeight = - p_sys->fmt.video.i_height;
bmi.bmiHeader.biPlanes = 1;
bmi.bmiHeader.biBitCount = p_sys->fmt.video.i_bits_per_pixel;
bmi.bmiHeader.biCompression = BI_RGB;
bmi.bmiHeader.biSizeImage = 0;
bmi.bmiHeader.biXPelsPerMeter =
bmi.bmiHeader.biYPelsPerMeter = 0;
bmi.bmiHeader.biClrUsed = 0;
bmi.bmiHeader.biClrImportant = 0;
/* Create the bitmap storage space */
p_data->hbmp = CreateDIBSection( p_data->hdc_dst, (BITMAPINFO *)&bmi,
DIB_RGB_COLORS, (void **)&p_data->p_buffer, NULL, 0 );
if( !p_data->hbmp || !p_data->p_buffer )
{
msg_Err( p_demux, "cannot create bitmap" );
if( p_data->hbmp ) DeleteObject( p_data->hbmp );
ReleaseDC( 0, p_data->hdc_src );
DeleteDC( p_data->hdc_dst );
return VLC_EGENERIC;
}
/* Select the bitmap into the compatible DC */
p_data->hgdi_backup = SelectObject( p_data->hdc_dst, p_data->hbmp );
if( !p_data->hgdi_backup )
{
msg_Err( p_demux, "cannot select bitmap" );
}
return VLC_SUCCESS;
}
int screen_CloseCapture( demux_t *p_demux )
{
demux_sys_t *p_sys = p_demux->p_sys;
screen_data_t *p_data = p_sys->p_data;
SelectObject( p_data->hdc_dst, p_data->hgdi_backup );
DeleteObject( p_data->hbmp );
DeleteDC( p_data->hdc_dst );
ReleaseDC( 0, p_data->hdc_src );
free( p_data );
return VLC_SUCCESS;
}
block_t *screen_Capture( demux_t *p_demux )
{
demux_sys_t *p_sys = p_demux->p_sys;
screen_data_t *p_data = p_sys->p_data;
block_t *p_block;
int i_size;
if( !BitBlt( p_data->hdc_dst, 0, 0,
p_sys->fmt.video.i_width, p_sys->fmt.video.i_height,
p_data->hdc_src, 0, 0, SRCCOPY ) )
{
msg_Err( p_demux, "error during BitBlt()" );
return NULL;
}
i_size = (p_sys->fmt.video.i_bits_per_pixel + 7) / 8 *
p_sys->fmt.video.i_width * p_sys->fmt.video.i_height;
if( !( p_block = block_New( p_demux, i_size ) ) )
{
msg_Warn( p_demux, "cannot get block" );
return 0;
}
memcpy( p_block->p_buffer, p_data->p_buffer, i_size );
return p_block;
}
modules/access/screen/x11.c 0 → 100644
View file @ c624c5f7
/*****************************************************************************
* x11.c: Screen capture module.
*****************************************************************************
* Copyright (C) 2004 VideoLAN
* $Id$
*
* Authors: Gildas Bazin <gbazin@videolan.org>
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#include <stdlib.h>
#include <vlc/vlc.h>
#include <vlc/input.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include "screen.h"
int screen_InitCapture( demux_t *p_demux )
{
demux_sys_t *p_sys = p_demux->p_sys;
Display *p_display;
XWindowAttributes win_info;
int i_chroma;
/* Open the display */
p_display = XOpenDisplay( NULL );
if( !p_display )
{
msg_Err( p_demux, "cannot open display" );
return VLC_EGENERIC;
}
p_sys->p_data = (void *)p_display;
/* Get the parameters of the root window */
if( !XGetWindowAttributes( p_display,
DefaultRootWindow( p_display ),
&win_info ) )
{
msg_Err( p_demux, "can't get root window attributes" );
XCloseDisplay( p_display );
return VLC_EGENERIC;
}
switch( win_info.depth )
{
case 8: /* FIXME: set the palette */
i_chroma = VLC_FOURCC('R','G','B','2'); break;
case 15:
i_chroma = VLC_FOURCC('R','V','1','5'); break;
case 16:
i_chroma = VLC_FOURCC('R','V','1','6'); break;
case 24:
i_chroma = VLC_FOURCC('R','V','2','4'); break;
case 32:
i_chroma = VLC_FOURCC('R','V','3','2'); break;
default:
msg_Err( p_demux, "unknown screen depth %i", win_info.depth );
XCloseDisplay( p_display );
return VLC_EGENERIC;
}
es_format_Init( &p_sys->fmt, VIDEO_ES, i_chroma );
p_sys->fmt.video.i_width = win_info.width;
p_sys->fmt.video.i_height = win_info.height;
p_sys->fmt.video.i_bits_per_pixel = win_info.depth;
#if 0
win_info.visual->red_mask;
win_info.visual->green_mask;
win_info.visual->blue_mask;
win_info.visual->bits_per_rgb;
#endif
return VLC_SUCCESS;
}
int screen_CloseCapture( demux_t *p_demux )
{
demux_sys_t *p_sys = p_demux->p_sys;
Display *p_display = (Display *)p_sys->p_data;
XCloseDisplay( p_display );
return VLC_SUCCESS;
}
block_t *screen_Capture( demux_t *p_demux )
{
demux_sys_t *p_sys = p_demux->p_sys;
Display *p_display = (Display *)p_sys->p_data;
block_t *p_block;
XImage *image;
int i_size;
image = XGetImage( p_display, DefaultRootWindow( p_display ),
0, 0, p_sys->fmt.video.i_width,
p_sys->fmt.video.i_height, AllPlanes, ZPixmap );
if( !image )
{
msg_Warn( p_demux, "cannot get image" );
return 0;
}
i_size = image->bytes_per_line * image->height;
if( !( p_block = block_New( p_demux, i_size ) ) )
{
msg_Warn( p_demux, "cannot get block" );
XDestroyImage( image );
return 0;
}
memcpy( p_block->p_buffer, image->data, i_size );
XDestroyImage( image );
return p_block;
}
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