Commit af20b62a authored by Antoine Lejeune's avatar Antoine Lejeune Committed by Rémi Denis-Courmont

Add an omap framebuffer video output module

It is used to speed up video output on N800/N810 devices.

X11 is used to handle events.
Signed-off-by: default avatarRémi Denis-Courmont <rdenis@simphalempin.com>
parent b451524f
......@@ -4375,6 +4375,20 @@ AC_ARG_ENABLE(mga,
VLC_ADD_PLUGIN([mga])
fi ])
dnl
dnl OMAP Framebuffer module
dnl
AC_ARG_ENABLE(omapfb,
[ --enable-omapfb OMAP framebuffer support (default disabled)])
if test "${enable_omapfb}" = "yes"
then
AC_CHECK_HEADERS(asm/arch-omap/omapfb.h, [
VLC_ADD_PLUGIN([omapfb])
AC_CHECK_HEADERS(X11/Xlib.h, [
VLC_ADD_LIBS([omapfb],[${X_LIBS} ${X_PRE_LIBS} -lX11]) ])
])
fi
dnl
dnl SVGAlib module
dnl
......@@ -5564,8 +5578,8 @@ AM_CONDITIONAL(BUILD_MOZILLA,${mozilla})
dnl Tests for Osso and Xsp
AC_CHECK_LIB(osso, osso_display_blanking_pause, [
PKG_CHECK_MODULES(GLIB2, glib-2.0, [
VLC_ADD_CPPFLAGS([x11 xvideo xvmc glx],[-DHAVE_OSSO ${DBUS_CFLAGS} ${GLIB2_CFLAGS}])
VLC_ADD_LIBS([x11 xvideo xvmc glx],[-losso])
VLC_ADD_CPPFLAGS([x11 xvideo xvmc glx omapfb],[-DHAVE_OSSO ${DBUS_CFLAGS} ${GLIB2_CFLAGS}])
VLC_ADD_LIBS([x11 xvideo xvmc glx omapfb],[-losso])
])
])
AC_CHECK_LIB(Xsp, XSPSetPixelDoubling,[
......
......@@ -7,6 +7,7 @@ LIBTOOL=@LIBTOOL@ --tag=CC
SOURCES_aa = aa.c
SOURCES_caca = caca.c
SOURCES_fb = fb.c
SOURCES_omapfb = omapfb.c
SOURCES_ggi = ggi.c
SOURCES_vout_sdl = sdl.c
SOURCES_svgalib = svgalib.c
......
/*****************************************************************************
* omapfb.c : omap framebuffer plugin for vlc
*****************************************************************************
* Copyright (C) 2008 the VideoLAN team
* $Id$
*
* Authors: Antoine Lejeune <phytos @ videolan.org>
* Based on fb.c and work of Siarhei Siamashka on mplayer for Maemo
* Needs a recent omapfb.h to compile
*
* 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <errno.h> /* ENOMEM */
#include <fcntl.h> /* open() */
#include <unistd.h> /* close() */
#include <sys/ioctl.h>
#include <sys/mman.h> /* mmap() */
#include <linux/fb.h>
#include <asm/arch-omap/omapfb.h>
/* Embedded window handling */
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/keysym.h>
#ifdef HAVE_OSSO
#include <libosso.h>
#endif
#include <vlc_common.h>
#include <vlc_plugin.h>
#include <vlc_keys.h>
#include <vlc_vout.h>
#include <vlc_playlist.h>
/*****************************************************************************
* Local prototypes
*****************************************************************************/
static int Create ( vlc_object_t * );
static void Destroy ( vlc_object_t * );
static int Init ( vout_thread_t * );
static void End ( vout_thread_t * );
static int Manage ( vout_thread_t * );
static void DisplayVideo ( vout_thread_t *, picture_t * );
static int Control ( vout_thread_t *, int, va_list );
static void FreePicture ( vout_thread_t *, picture_t * );
static int OpenDisplay ( vout_thread_t * );
static void CloseDisplay ( vout_thread_t * );
static void UpdateScreen ( vout_thread_t *,
int, int, int, int, int, int, int );
static int InitWindow ( vout_thread_t * );
static void CreateWindow ( vout_sys_t * );
static void ToggleFullScreen ( vout_thread_t * );
#ifdef HAVE_OSSO
static const int i_backlight_on_interval = 300;
#endif
/*****************************************************************************
* Module descriptor
*****************************************************************************/
#define FB_DEV_VAR "omapfbdev"
#define DEVICE_TEXT N_("OMAP Framebuffer device")
#define DEVICE_LONGTEXT N_( \
"OMAP Framebuffer device to use for rendering (usually /dev/fb0).")
#define CHROMA_TEXT N_("Chroma used.")
#define CHROMA_LONGTEXT N_( \
"Force use of a specific chroma for output. Default is Y420 (specific to N770/N8xx hardware)." )
#define OVERLAY_TEXT N_("Embed the overlay")
#define OVERLAY_LONGTEXT N_( \
"Embed the framebuffer overlay into a X11 window" )
vlc_module_begin();
set_shortname( "OMAP framebuffer" );
set_category( CAT_VIDEO );
set_subcategory( SUBCAT_VIDEO_VOUT );
add_file( FB_DEV_VAR, "/dev/fb0", NULL, DEVICE_TEXT, DEVICE_LONGTEXT,
false );
add_string( "omap-chroma", NULL, NULL, CHROMA_TEXT, CHROMA_LONGTEXT,
true );
add_bool( "omap-embedded", true, NULL, OVERLAY_TEXT, OVERLAY_LONGTEXT,
true );
set_description( N_("OMAP framebuffer video output") );
set_capability( "video output", 200 );
set_callbacks( Create, Destroy );
vlc_module_end();
/*****************************************************************************
* omap_window_t: simple structure with the geometry of a window
*****************************************************************************/
struct omap_window_t
{
uint32_t i_x;
uint32_t i_y;
uint32_t i_width;
uint32_t i_height;
};
/*****************************************************************************
* vout_sys_t: video output omap framebuffer method descriptor
*****************************************************************************
* This structure is part of the video output thread descriptor.
* It describes the FB specific properties of an output thread.
*****************************************************************************/
struct vout_sys_t
{
/* Framebuffer information */
int i_fd; /* device handle */
struct fb_var_screeninfo fb_vinfo; /* current mode information */
struct fb_fix_screeninfo fb_finfo;
struct omapfb_caps caps;
bool b_tearsync;
/* Window information */
struct omap_window_t output_window; /* Size of the real output window */
struct omap_window_t main_window; /* Size of the area we got to display */
struct omap_window_t embedded_window; /* Size of the embedded window */
/* Video information */
uint32_t i_video_width; /* video width */
uint32_t i_video_height; /* video height */
vlc_fourcc_t i_chroma;
int i_color_format; /* OMAPFB_COLOR_* */
bool b_embed;
bool b_video_enabled; /* Video must be displayed? */
picture_t *p_output_picture;
/* Video memory */
uint8_t *p_video; /* base adress */
uint8_t *p_center; /* output adress */
size_t i_page_size; /* page size */
int i_bytes_per_pixel; /* Bytes used by one pixel */
int i_line_len; /* Length of one line in bytes */
/* X11 */
Display *p_display;
Window owner_window;
Window window;
mtime_t i_time_button_last_pressed; /* To detect double click */
/* Dummy memory */
int i_null_fd;
uint8_t *p_null;
#ifdef HAVE_OSSO
osso_context_t *p_octx;
int i_backlight_on_counter;
#endif
};
/*****************************************************************************
* Create: allocates omapfb video thread output method
*****************************************************************************
* This function allocates and initializes a FB vout method.
*****************************************************************************/
static int Create( vlc_object_t *p_this )
{
vout_thread_t *p_vout = (vout_thread_t *)p_this;
vout_sys_t *p_sys;
if( p_vout->fmt_in.i_chroma != VLC_FOURCC('I','4','2','0') &&
p_vout->fmt_in.i_chroma != VLC_FOURCC('I','Y','U','V') &&
p_vout->fmt_in.i_chroma != VLC_FOURCC('Y','V','1','2') )
return VLC_EGENERIC;
/* Allocate instance and initialize some members */
p_vout->p_sys = p_sys = malloc( sizeof( vout_sys_t ) );
if( p_vout->p_sys == NULL )
return VLC_ENOMEM;
memset( p_sys, 0, sizeof(vout_sys_t) );
p_vout->pf_init = Init;
p_vout->pf_end = End;
p_vout->pf_manage = Manage;
p_vout->pf_render = NULL;
p_vout->pf_display = DisplayVideo;
p_vout->pf_control = Control;
p_sys->b_embed = var_CreateGetInteger( p_vout, "omap-embedded" );
p_sys->b_video_enabled = true;
if( OpenDisplay( p_vout ) )
{
free( p_vout->p_sys );
return VLC_EGENERIC;
}
if( InitWindow( p_vout ) )
{
free( p_vout->p_sys );
return VLC_EGENERIC;
}
#ifdef HAVE_OSSO
p_vout->p_sys->i_backlight_on_counter = i_backlight_on_interval;
p_vout->p_sys->p_octx = osso_initialize( "vlc", VERSION, 0, NULL );
if ( p_vout->p_sys->p_octx == NULL ) {
msg_Err( p_vout, "Could not get osso context" );
} else {
msg_Dbg( p_vout, "Initialized osso context" );
}
#endif
return VLC_SUCCESS;
}
/*****************************************************************************
* Destroy: destroy omapfb video thread output method
*****************************************************************************
* Terminate an output method created by Create
*****************************************************************************/
static void Destroy( vlc_object_t *p_this )
{
vout_thread_t *p_vout = (vout_thread_t *)p_this;
CloseDisplay( p_vout );
if( p_vout->p_sys->b_embed )
{
vout_ReleaseWindow( p_vout, (void *)p_vout->p_sys->owner_window );
if( p_vout->b_fullscreen )
XDestroyWindow( p_vout->p_sys->p_display, p_vout->p_sys->window );
XCloseDisplay( p_vout->p_sys->p_display );
}
#ifdef HAVE_OSSO
if ( p_vout->p_sys->p_octx != NULL ) {
msg_Dbg( p_vout, "Deinitializing osso context" );
osso_deinitialize( p_vout->p_sys->p_octx );
}
#endif
/* Destroy structure */
free( p_vout->p_sys );
}
/*****************************************************************************
* Init: initialize omap framebuffer video thread output method
*****************************************************************************/
static int Init( vout_thread_t *p_vout )
{
vout_sys_t *p_sys = (vout_sys_t *)p_vout->p_sys;
// We want to keep the same aspect
p_vout->fmt_out.i_aspect = p_vout->output.i_aspect = p_vout->render.i_aspect;
// We ask where the video should be displayed in the video area
vout_PlacePicture( p_vout, p_sys->main_window.i_width,
p_sys->main_window.i_height,
&p_sys->output_window.i_x,
&p_sys->output_window.i_y,
&p_sys->output_window.i_width,
&p_sys->output_window.i_height );
p_sys->output_window.i_x = ( p_sys->output_window.i_x +
p_sys->main_window.i_x ) & ~1;
p_sys->output_window.i_y = ( p_sys->output_window.i_y +
p_sys->main_window.i_y ) & ~1;
// Hardware upscaling better than software
if( p_vout->fmt_render.i_width <= p_sys->main_window.i_width &&
p_vout->fmt_render.i_height <= p_sys->main_window.i_height )
{
p_sys->i_video_width =
p_vout->output.i_width =
p_vout->fmt_out.i_width =
p_vout->fmt_out.i_visible_width = p_vout->fmt_render.i_width;
p_sys->i_video_height =
p_vout->output.i_height =
p_vout->fmt_out.i_height =
p_vout->fmt_out.i_visible_height = p_vout->fmt_render.i_height;
}
else
{
p_sys->i_video_width =
p_vout->output.i_width =
p_vout->fmt_out.i_width =
p_vout->fmt_out.i_visible_width = p_sys->output_window.i_width;
p_sys->i_video_height =
p_vout->output.i_height =
p_vout->fmt_out.i_height =
p_vout->fmt_out.i_visible_height = p_sys->output_window.i_height;
}
p_vout->output.i_chroma =
p_vout->fmt_out.i_chroma = VLC_FOURCC( 'Y','4','2','0' );
p_sys->i_color_format = OMAPFB_COLOR_YUV420;
// place in the framebuffer where we have to write
p_sys->p_center = p_sys->p_video + p_sys->output_window.i_x*p_sys->i_bytes_per_pixel
+ p_sys->output_window.i_y*p_sys->i_line_len;
// We get and set a direct render vlc picture
I_OUTPUTPICTURES = 0;
picture_t *p_pic = NULL;
int i_index;
for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
{
if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
{
p_pic = p_vout->p_picture + i_index;
break;
}
}
/* Allocate the picture */
if( p_pic == NULL )
{
return VLC_EGENERIC;
}
p_sys->p_output_picture = p_pic;
p_pic->p->p_pixels = p_vout->p_sys->p_center;
p_pic->p->i_pixel_pitch = p_vout->p_sys->i_bytes_per_pixel;
p_pic->p->i_lines = p_sys->i_video_height;
p_pic->p->i_visible_lines = p_sys->i_video_height;
p_pic->p->i_pitch = p_sys->i_line_len;
p_pic->p->i_visible_pitch = p_sys->i_line_len;
p_pic->i_planes = 1;
p_pic->i_status = DESTROYED_PICTURE;
p_pic->i_type = DIRECT_PICTURE;
PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
I_OUTPUTPICTURES++;
return VLC_SUCCESS;
}
/*****************************************************************************
* End: terminate omap framebuffer video thread output method
*****************************************************************************/
static void End( vout_thread_t *p_vout )
{
/* Clear the screen */
UpdateScreen( p_vout, 0, 0,
p_vout->p_sys->fb_vinfo.xres,
p_vout->p_sys->fb_vinfo.yres,
p_vout->p_sys->fb_vinfo.xres,
p_vout->p_sys->fb_vinfo.yres,
OMAPFB_COLOR_RGB565 );
}
/*****************************************************************************
* Control: control facility for the vout
*****************************************************************************/
static int Control( vout_thread_t *p_vout, int i_query, va_list args )
{
switch( i_query )
{
default:
return vout_vaControlDefault( p_vout, i_query, args );
}
}
/*****************************************************************************
* FreePicture: Destroy the picture and make it free again
******************************************************************************/
static void FreePicture( vout_thread_t *p_vout, picture_t *p_pic )
{
p_pic->p->p_pixels = NULL;
p_pic->i_status = FREE_PICTURE;
}
/*****************************************************************************
* Manage: handle omapfb events
*****************************************************************************
* This function should be called regularly by video output thread.
*****************************************************************************/
static int Manage( vout_thread_t *p_vout )
{
XEvent xevent;
while( XPending( p_vout->p_sys->p_display ) )
{
XNextEvent( p_vout->p_sys->p_display, &xevent );
if( xevent.type == ButtonPress &&
((XButtonEvent *)&xevent)->button == Button1 )
{
/* detect double-clicks */
if( ( ((XButtonEvent *)&xevent)->time -
p_vout->p_sys->i_time_button_last_pressed ) < 300 )
{
p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
}
p_vout->p_sys->i_time_button_last_pressed =
((XButtonEvent *)&xevent)->time;
}
else if( xevent.type == KeyPress )
{
KeySym x_key_symbol;
vlc_value_t val;
x_key_symbol = XKeycodeToKeysym( p_vout->p_sys->p_display,
xevent.xkey.keycode, 0 );
switch( x_key_symbol )
{
case XK_Return:
val.i_int = ACTIONID_PLAY_PAUSE; break;
case XK_Escape:
val.i_int = ACTIONID_QUIT; break;
case XK_Down:
val.i_int = ACTIONID_JUMP_BACKWARD_MEDIUM; break;
case XK_Up:
val.i_int = ACTIONID_JUMP_FORWARD_MEDIUM; break;
case XK_Right:
val.i_int = ACTIONID_JUMP_FORWARD_SHORT; break;
case XK_Left:
val.i_int = ACTIONID_JUMP_BACKWARD_SHORT; break;
case XK_F6:
val.i_int = ACTIONID_TOGGLE_FULLSCREEN; break;
case XK_F7:
val.i_int = ACTIONID_VOL_UP; break;
case XK_F8:
val.i_int = ACTIONID_VOL_DOWN; break;
}
var_SetInteger( p_vout->p_libvlc, "key-action", val.i_int );
}
else if( ( xevent.type == VisibilityNotify &&
xevent.xvisibility.state == VisibilityUnobscured ) ||
xevent.type == FocusIn )
{
p_vout->p_sys->b_video_enabled = true;
p_vout->p_sys->p_output_picture->p->p_pixels =
p_vout->p_sys->p_center;
XSetInputFocus( p_vout->p_sys->p_display, p_vout->p_sys->window,
RevertToParent, CurrentTime );
}
else if( ( xevent.type == VisibilityNotify &&
xevent.xvisibility.state != VisibilityUnobscured ) ||
xevent.type == FocusOut || xevent.type == UnmapNotify )
{
UpdateScreen( p_vout, 0, 0,
p_vout->p_sys->fb_vinfo.xres,
p_vout->p_sys->fb_vinfo.yres,
p_vout->p_sys->fb_vinfo.xres,
p_vout->p_sys->fb_vinfo.yres,
OMAPFB_COLOR_RGB565 );
p_vout->p_sys->b_video_enabled = false;
p_vout->p_sys->p_output_picture->p->p_pixels =
p_vout->p_sys->p_null;
}
}
if( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
{
/* Update the object variable and trigger callback */
var_SetBool( p_vout, "fullscreen", !p_vout->b_fullscreen );
if( p_vout->p_sys->b_embed )
ToggleFullScreen( p_vout );
p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
}
if( p_vout->i_changes & VOUT_SIZE_CHANGE )
{
FreePicture( p_vout, p_vout->p_sys->p_output_picture );
if( Init( p_vout ) )
{
msg_Err( p_vout, "cannot reinit framebuffer screen" );
return VLC_EGENERIC;
}
}
#ifdef HAVE_OSSO
if ( p_vout->p_sys->p_octx != NULL ) {
if ( p_vout->p_sys->i_backlight_on_counter == i_backlight_on_interval ) {
if ( osso_display_blanking_pause( p_vout->p_sys->p_octx ) != OSSO_OK ) {
msg_Err( p_vout, "Could not disable backlight blanking" );
} else {
msg_Dbg( p_vout, "Backlight blanking disabled" );
}
p_vout->p_sys->i_backlight_on_counter = 0;
} else {
p_vout->p_sys->i_backlight_on_counter ++;
}
}
#endif
return VLC_SUCCESS;
}
/*****************************************************************************
* DisplayVideo: displays previously rendered output
*****************************************************************************
* This function update the screen resulting in the display of the last
* rendered picture.
*****************************************************************************/
static void DisplayVideo( vout_thread_t *p_vout, picture_t *p_pic )
{
VLC_UNUSED( p_pic );
if( !p_vout->p_sys->b_video_enabled )
return;
UpdateScreen( p_vout,
p_vout->p_sys->output_window.i_x,
p_vout->p_sys->output_window.i_y,
p_vout->p_sys->i_video_width,
p_vout->p_sys->i_video_height,
p_vout->p_sys->output_window.i_width,
p_vout->p_sys->output_window.i_height,
p_vout->p_sys->i_color_format );
// Wait for the window to be fully displayed
ioctl( p_vout->p_sys->i_fd, OMAPFB_SYNC_GFX);
}
/*****************************************************************************
* OpenDisplay: initialize framebuffer
*****************************************************************************/
static int OpenDisplay( vout_thread_t *p_vout )
{
vout_sys_t *p_sys = (vout_sys_t *) p_vout->p_sys;
char *psz_device; /* framebuffer device path */
/* Open framebuffer device */
if( !(psz_device = config_GetPsz( p_vout, FB_DEV_VAR )) )
{
msg_Err( p_vout, "don't know which fb device to open" );
return VLC_EGENERIC;
}
p_sys->i_fd = open( psz_device, O_RDWR );
if( p_sys->i_fd == -1 )
{
msg_Err( p_vout, "cannot open %s (%m)", psz_device );
free( psz_device );
return VLC_EGENERIC;
}
free( psz_device );
psz_device = NULL;
// Get caps, try older interface if needed
if( ioctl( p_sys->i_fd, OMAPFB_GET_CAPS, &p_sys->caps ) != 0 )
{
if( ioctl( p_sys->i_fd, OMAP_IOR( 42, unsigned long ), &p_sys->caps ) != 0 )
{
msg_Err( p_vout, "OMAPFB_GET_CAPS ioctl failed" );
close( p_sys->i_fd );
return VLC_EGENERIC;
}
}
if( ( p_sys->caps.ctrl & OMAPFB_CAPS_TEARSYNC ) != 0 )
p_sys->b_tearsync = true;
if( ioctl( p_sys->i_fd, FBIOGET_VSCREENINFO, &p_sys->fb_vinfo ) )
{
msg_Err( p_vout, "Can't get VSCREENINFO: %s", strerror(errno) );
return VLC_EGENERIC;
}
if( ioctl( p_sys->i_fd, FBIOGET_FSCREENINFO, &p_sys->fb_finfo ) )
{
msg_Err( p_vout, "Can't get FSCREENINFO: %s", strerror(errno) );
return VLC_EGENERIC;
}
p_sys->i_bytes_per_pixel = 2;
p_sys->i_page_size = p_sys->fb_finfo.smem_len;
p_sys->i_line_len = p_sys->fb_finfo.line_length;
if( (p_sys->p_video = (uint8_t *)mmap( 0, p_sys->i_page_size, PROT_READ | PROT_WRITE, MAP_SHARED,
p_sys->i_fd, 0 )) == MAP_FAILED )
{
msg_Err( p_vout, "Can't mmap: %s\n", strerror(errno) );
return VLC_EGENERIC;
}
p_sys->p_display = XOpenDisplay( NULL );
/* Open /dev/null and map it */
p_sys->i_null_fd = open( "/dev/zero", O_RDWR );