+++ /dev/null
-/*****************************************************************************
- * ggi.c : GGI plugin for vlc
- *****************************************************************************
- * Copyright (C) 2000-2009 the VideoLAN team
- * $Id$
- *
- * Authors: Vincent Seguin <seguin@via.ecp.fr>
- * Samuel Hocevar <sam@zoy.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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
- *****************************************************************************/
-
-/*****************************************************************************
- * Preamble
- *****************************************************************************/
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#include <ggi/ggi.h>
-
-#include <vlc_common.h>
-#include <vlc_plugin.h>
-#include <vlc_interface.h>
-#include <vlc_vout.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 Display ( vout_thread_t *, picture_t * );
-
-static int OpenDisplay ( vout_thread_t * );
-static void CloseDisplay ( vout_thread_t * );
-static void SetPalette ( vout_thread_t *, uint16_t *, uint16_t *, uint16_t * );
-
-/*****************************************************************************
- * Module descriptor
- *****************************************************************************/
-#define DISPLAY_TEXT N_("X11 display")
-#define DISPLAY_LONGTEXT N_( \
- "X11 hardware display to use.\n" \
- "By default, VLC will use the value of the DISPLAY " \
- "environment variable.")
-
-vlc_module_begin ()
- add_string( "ggi-display", NULL, NULL, DISPLAY_TEXT, DISPLAY_LONGTEXT, true )
- set_description( "General Graphics Interface video output" )
- set_capability( "video output", 30 )
- set_callbacks( Create, Destroy )
-vlc_module_end ()
-
-/*****************************************************************************
- * vout_sys_t: video output GGI method descriptor
- *****************************************************************************
- * This structure is part of the video output thread descriptor.
- * It describes the GGI specific properties of an output thread.
- *****************************************************************************/
-struct vout_sys_t
-{
- /* GGI system information */
- ggi_visual_t p_display; /* display device */
-
- ggi_mode mode; /* mode descriptor */
- int i_bits_per_pixel;
-
- /* Buffer information */
- ggi_directbuffer * pp_buffer[2]; /* buffers */
- int i_index;
-
- bool b_must_acquire; /* must be acquired before writing */
-};
-
-/*****************************************************************************
- * Create: allocate GGI video thread output method
- *****************************************************************************
- * This function allocate and initialize a GGI vout method. It uses some of the
- * vout properties to choose the correct mode, and change them according to the
- * mode actually used.
- *****************************************************************************/
-static int Create( vlc_object_t *p_this )
-{
- vout_thread_t *p_vout = (vout_thread_t *)p_this;
-
- /* Allocate structure */
- p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
- if( p_vout->p_sys == NULL )
- return VLC_ENOMEM;
-
- /* Open and initialize device */
- if( OpenDisplay( p_vout ) )
- {
- msg_Err( p_vout, "cannot initialize GGI display" );
- free( p_vout->p_sys );
- return VLC_EGENERIC;
- }
-
- p_vout->pf_init = Init;
- p_vout->pf_end = End;
- p_vout->pf_manage = Manage;
- p_vout->pf_render = NULL;
- p_vout->pf_display = Display;
-
- return VLC_SUCCESS;
-}
-
-/*****************************************************************************
- * Init: initialize GGI video thread output method
- *****************************************************************************
- * This function initialize the GGI display device.
- *****************************************************************************/
-static int Init( vout_thread_t *p_vout )
-{
-#define p_b p_vout->p_sys->pp_buffer
- int i_index;
- picture_t *p_pic;
-
- I_OUTPUTPICTURES = 0;
-
- p_vout->output.i_width = p_vout->p_sys->mode.visible.x;
- p_vout->output.i_height = p_vout->p_sys->mode.visible.y;
- p_vout->output.i_aspect = p_vout->p_sys->mode.visible.x
- * VOUT_ASPECT_FACTOR
- / p_vout->p_sys->mode.visible.y;
-
- switch( p_vout->p_sys->i_bits_per_pixel )
- {
- case 8:
- p_vout->output.i_chroma = VLC_CODEC_RGB8;
- p_vout->output.pf_setpalette = SetPalette;
- break;
- case 15:
- p_vout->output.i_chroma = VLC_CODEC_RGB15; break;
- case 16:
- p_vout->output.i_chroma = VLC_CODEC_RGB16; break;
- case 24:
- p_vout->output.i_chroma = VLC_CODEC_RGB24; break;
- case 32:
- p_vout->output.i_chroma = VLC_CODEC_RGB32; break;
- default:
- msg_Err( p_vout, "unknown screen depth %i",
- p_vout->p_sys->i_bits_per_pixel );
- return VLC_EGENERIC;
- }
-
- /* Only useful for bits_per_pixel != 8 */
- p_vout->output.i_rmask = p_b[ 0 ]->buffer.plb.pixelformat->red_mask;
- p_vout->output.i_gmask = p_b[ 0 ]->buffer.plb.pixelformat->green_mask;
- p_vout->output.i_bmask = p_b[ 0 ]->buffer.plb.pixelformat->blue_mask;
-
- p_pic = NULL;
-
- /* Find an empty picture slot */
- 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;
- }
- }
-
- if( p_pic == NULL )
- {
- return VLC_EGENERIC;
- }
-
- /* We know the chroma, allocate a buffer which will be used
- * directly by the decoder */
- p_vout->p_sys->i_index = 0;
- p_pic->p->p_pixels = p_b[ 0 ]->write;
- p_pic->p->i_pixel_pitch = p_b[ 0 ]->buffer.plb.pixelformat->size / 8;
- p_pic->p->i_lines = p_vout->p_sys->mode.visible.y;
- p_pic->p->i_visible_lines = p_vout->p_sys->mode.visible.y;
-
- p_pic->p->i_pitch = p_b[ 0 ]->buffer.plb.stride;
-
- if( p_b[ 0 ]->buffer.plb.pixelformat->size / 8
- * p_vout->p_sys->mode.visible.x
- != p_b[ 0 ]->buffer.plb.stride )
- {
- p_pic->p->i_visible_pitch = p_b[ 0 ]->buffer.plb.pixelformat->size
- / 8 * p_vout->p_sys->mode.visible.x;
- }
- else
- {
- p_pic->p->i_visible_pitch = p_b[ 0 ]->buffer.plb.stride;
- }
-
- 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++;
-
- /* Acquire first buffer */
- if( p_vout->p_sys->b_must_acquire )
- {
- ggiResourceAcquire( p_b[ 0 ]->resource,
- GGI_ACTYPE_WRITE );
- }
-
- /* Listen to the keyboard and the mouse buttons */
- ggiSetEventMask( p_vout->p_sys->p_display,
- emKeyboard | emPtrButtonPress | emPtrButtonRelease );
-
- /* Set asynchronous display mode -- usually quite faster */
- ggiAddFlags( p_vout->p_sys->p_display, GGIFLAG_ASYNC );
-
- return VLC_SUCCESS;
-#undef p_b
-}
-
-/*****************************************************************************
- * End: terminate GGI video thread output method
- *****************************************************************************
- * Terminate an output method created by Create
- *****************************************************************************/
-static void End( vout_thread_t *p_vout )
-{
-#define p_b p_vout->p_sys->pp_buffer
- /* Release buffer */
- if( p_vout->p_sys->b_must_acquire )
- {
- ggiResourceRelease( p_b[ p_vout->p_sys->i_index ]->resource );
- }
-#undef p_b
-}
-
-/*****************************************************************************
- * Destroy: destroy GGI 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 );
-
- free( p_vout->p_sys );
-}
-
-/*****************************************************************************
- * Manage: handle GGI events
- *****************************************************************************
- * This function should be called regularly by video output thread. It returns
- * a non null value if an error occurred.
- *****************************************************************************/
-static int Manage( vout_thread_t *p_vout )
-{
- struct timeval tv = { 0, 1000 }; /* 1 millisecond */
- gii_event_mask mask;
- gii_event event;
-
- mask = emKeyboard | emPtrButtonPress | emPtrButtonRelease;
-
- ggiEventPoll( p_vout->p_sys->p_display, mask, &tv );
-
- while( ggiEventsQueued( p_vout->p_sys->p_display, mask) )
- {
- ggiEventRead( p_vout->p_sys->p_display, &event, mask);
-
- switch( event.any.type )
- {
- case evKeyRelease:
-
- switch( event.key.sym )
- {
- case 'q':
- case 'Q':
- case GIIUC_Escape:
- libvlc_Quit( p_vout->p_libvlc );
- break;
-
- default:
- break;
- }
- break;
-
- case evPtrButtonRelease:
-
- switch( event.pbutton.button )
- {
- case GII_PBUTTON_LEFT:
- /*FIXME
- var_SetCoords( p_vout, "mouse-clicked", x, y );*/
- break;
-
- case GII_PBUTTON_RIGHT:
- var_SetBool( p_vout->p_libvlc, "intf-popupmenu", true );
- break;
- }
- break;
-
- default:
- break;
- }
- }
-
- return( 0 );
-}
-
-/*****************************************************************************
- * Display: displays previously rendered output
- *****************************************************************************/
-static void Display( vout_thread_t *p_vout, picture_t *p_pic )
-{
-#define p_b p_vout->p_sys->pp_buffer
- p_pic->p->p_pixels = p_b[ p_vout->p_sys->i_index ]->write;
-
- /* Change display frame */
- if( p_vout->p_sys->b_must_acquire )
- {
- ggiResourceRelease( p_b[ p_vout->p_sys->i_index ]->resource );
- }
- ggiSetDisplayFrame( p_vout->p_sys->p_display,
- p_b[ p_vout->p_sys->i_index ]->frame );
-
- /* Swap buffers and change write frame */
- p_vout->p_sys->i_index ^= 1;
- p_pic->p->p_pixels = p_b[ p_vout->p_sys->i_index ]->write;
-
- if( p_vout->p_sys->b_must_acquire )
- {
- ggiResourceAcquire( p_b[ p_vout->p_sys->i_index ]->resource,
- GGI_ACTYPE_WRITE );
- }
- ggiSetWriteFrame( p_vout->p_sys->p_display,
- p_b[ p_vout->p_sys->i_index ]->frame );
-
- /* Flush the output so that it actually displays */
- ggiFlush( p_vout->p_sys->p_display );
-#undef p_b
-}
-
-/* following functions are local */
-
-/*****************************************************************************
- * OpenDisplay: open and initialize GGI device
- *****************************************************************************
- * Open and initialize display according to preferences specified in the vout
- * thread fields.
- *****************************************************************************/
-static int OpenDisplay( vout_thread_t *p_vout )
-{
-#define p_b p_vout->p_sys->pp_buffer
- ggi_color col_fg; /* foreground color */
- ggi_color col_bg; /* background color */
- int i_index; /* all purposes index */
- char *psz_display;
-
- /* Initialize library */
- if( ggiInit() )
- {
- msg_Err( p_vout, "cannot initialize GGI library" );
- return VLC_EGENERIC;
- }
-
- /* Open display */
- psz_display = var_InheritString( p_vout, "ggi-display" );
-
- p_vout->p_sys->p_display = ggiOpen( psz_display, NULL );
- free( psz_display );
-
- if( p_vout->p_sys->p_display == NULL )
- {
- msg_Err( p_vout, "cannot open GGI default display" );
- ggiExit();
- return VLC_EGENERIC;
- }
-
- /* Find most appropriate mode */
- p_vout->p_sys->mode.frames = 2; /* 2 buffers */
- p_vout->p_sys->mode.visible.x = var_InheritInteger( p_vout, "width" );
- p_vout->p_sys->mode.visible.y = var_InheritInteger( p_vout, "height" );
- p_vout->p_sys->mode.virt.x = GGI_AUTO;
- p_vout->p_sys->mode.virt.y = GGI_AUTO;
- p_vout->p_sys->mode.size.x = GGI_AUTO;
- p_vout->p_sys->mode.size.y = GGI_AUTO;
- p_vout->p_sys->mode.graphtype = GT_15BIT; /* minimum usable depth */
- p_vout->p_sys->mode.dpp.x = GGI_AUTO;
- p_vout->p_sys->mode.dpp.y = GGI_AUTO;
- ggiCheckMode( p_vout->p_sys->p_display, &p_vout->p_sys->mode );
-
- /* FIXME: Check that returned mode has some minimum properties */
-
- /* Set mode */
- if( ggiSetMode( p_vout->p_sys->p_display, &p_vout->p_sys->mode ) )
- {
- msg_Err( p_vout, "cannot set GGI mode" );
- ggiClose( p_vout->p_sys->p_display );
- ggiExit();
- return VLC_EGENERIC;
- }
-
- /* Check buffers properties */
- p_vout->p_sys->b_must_acquire = 0;
- for( i_index = 0; i_index < 2; i_index++ )
- {
- /* Get buffer address */
- p_vout->p_sys->pp_buffer[ i_index ] =
- (ggi_directbuffer *)ggiDBGetBuffer( p_vout->p_sys->p_display,
- i_index );
- if( p_b[ i_index ] == NULL )
- {
- msg_Err( p_vout, "double buffering is not possible" );
- ggiClose( p_vout->p_sys->p_display );
- ggiExit();
- return VLC_EGENERIC;
- }
-
- /* Check buffer properties */
- if( ! ( p_b[ i_index ]->type & GGI_DB_SIMPLE_PLB )
- || ( p_b[ i_index ]->page_size != 0 )
- || ( p_b[ i_index ]->write == NULL )
- || ( p_b[ i_index ]->noaccess != 0 )
- || ( p_b[ i_index ]->align != 0 ) )
- {
- msg_Err( p_vout, "incorrect video memory type" );
- ggiClose( p_vout->p_sys->p_display );
- ggiExit();
- return VLC_EGENERIC;
- }
-
- /* Check if buffer needs to be acquired before write */
- if( ggiResourceMustAcquire( p_b[ i_index ]->resource ) )
- {
- p_vout->p_sys->b_must_acquire = 1;
- }
- }
-
- /* Set graphic context colors */
- col_fg.r = col_fg.g = col_fg.b = -1;
- col_bg.r = col_bg.g = col_bg.b = 0;
- if( ggiSetGCForeground(p_vout->p_sys->p_display,
- ggiMapColor(p_vout->p_sys->p_display,&col_fg)) ||
- ggiSetGCBackground(p_vout->p_sys->p_display,
- ggiMapColor(p_vout->p_sys->p_display,&col_bg)) )
- {
- msg_Err( p_vout, "cannot set colors" );
- ggiClose( p_vout->p_sys->p_display );
- ggiExit();
- return VLC_EGENERIC;
- }
-
- /* Set clipping for text */
- if( ggiSetGCClipping( p_vout->p_sys->p_display, 0, 0,
- p_vout->p_sys->mode.visible.x,
- p_vout->p_sys->mode.visible.y ) )
- {
- msg_Err( p_vout, "cannot set clipping" );
- ggiClose( p_vout->p_sys->p_display );
- ggiExit();
- return VLC_EGENERIC;
- }
-
- /* FIXME: set palette in 8bpp */
- p_vout->p_sys->i_bits_per_pixel = p_b[ 0 ]->buffer.plb.pixelformat->depth;
-
- return VLC_SUCCESS;
-#undef p_b
-}
-
-/*****************************************************************************
- * CloseDisplay: close and reset GGI device
- *****************************************************************************
- * This function returns all resources allocated by OpenDisplay and restore
- * the original state of the device.
- *****************************************************************************/
-static void CloseDisplay( vout_thread_t *p_vout )
-{
- /* Restore original mode and close display */
- ggiClose( p_vout->p_sys->p_display );
-
- /* Exit library */
- ggiExit();
-}
-
-/*****************************************************************************
- * SetPalette: sets an 8 bpp palette
- *****************************************************************************/
-static void SetPalette( vout_thread_t *p_vout,
- uint16_t *red, uint16_t *green, uint16_t *blue )
-{
- ggi_color colors[256];
- int i;
-
- /* Fill colors with color information */
- for( i = 0; i < 256; i++ )
- {
- colors[ i ].r = red[ i ];
- colors[ i ].g = green[ i ];
- colors[ i ].b = blue[ i ];
- colors[ i ].a = 0;
- }
-
- /* Set palette */
- if( ggiSetPalette( p_vout->p_sys->p_display, 0, 256, colors ) < 0 )
- {
- msg_Err( p_vout, "failed to set palette" );
- }
-}
-
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