* ggi.c : GGI plugin for vlc
*****************************************************************************
* Copyright (C) 2000, 2001 VideoLAN
- * $Id: ggi.c,v 1.7 2001/05/30 17:03:12 sam Exp $
+ * $Id: ggi.c,v 1.18 2002/03/17 17:00:38 sam Exp $
*
- * Authors: Samuel Hocevar <sam@zoy.org>
+ * 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
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
-#define MODULE_NAME ggi
-#include "modules_inner.h"
-
/*****************************************************************************
* Preamble
*****************************************************************************/
-#include "defs.h"
-
#include <stdlib.h> /* malloc(), free() */
+#include <string.h>
+#include <errno.h> /* ENOMEM */
-#include "config.h"
-#include "common.h" /* boolean_t, byte_t */
-#include "threads.h"
-#include "mtime.h"
+#include <ggi/ggi.h>
+
+#include <videolan/vlc.h>
#include "video.h"
#include "video_output.h"
-#include "modules.h"
-#include "modules_export.h"
+#include "intf_msg.h"
+#include "interface.h"
/*****************************************************************************
- * Capabilities defined in the other files.
+ * Local prototypes.
*****************************************************************************/
-void _M( vout_getfunctions )( function_list_t * p_function_list );
+static void vout_getfunctions( function_list_t * p_function_list );
+
+static int vout_Create ( vout_thread_t * );
+static int vout_Init ( vout_thread_t * );
+static void vout_End ( vout_thread_t * );
+static void vout_Destroy ( vout_thread_t * );
+static int vout_Manage ( vout_thread_t * );
+static void vout_Render ( vout_thread_t *, picture_t * );
+static void vout_Display ( vout_thread_t *, picture_t * );
+
+static int OpenDisplay ( vout_thread_t * );
+static void CloseDisplay ( vout_thread_t * );
+static void SetPalette ( vout_thread_t *, u16 *, u16 *, u16 * );
/*****************************************************************************
* Building configuration tree
*****************************************************************************/
MODULE_CONFIG_START
-ADD_WINDOW( "Configuration for GGI module" )
- ADD_COMMENT( "For now, the GGI module cannot be configured" )
MODULE_CONFIG_STOP
MODULE_INIT_START
- p_module->i_capabilities = MODULE_CAPABILITY_NULL
- | MODULE_CAPABILITY_VOUT;
- p_module->psz_longname = "General Graphics Interface module";
+ SET_DESCRIPTION( "General Graphics Interface video output" )
+ ADD_CAPABILITY( VOUT, 30 )
+ ADD_SHORTCUT( "ggi" )
MODULE_INIT_STOP
MODULE_ACTIVATE_START
- _M( vout_getfunctions )( &p_module->p_functions->vout );
+ vout_getfunctions( &p_module->p_functions->vout );
MODULE_ACTIVATE_STOP
MODULE_DEACTIVATE_START
MODULE_DEACTIVATE_STOP
+/*****************************************************************************
+ * 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.
+ *****************************************************************************/
+typedef struct vout_sys_s
+{
+ /* GGI system informations */
+ 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;
+
+ boolean_t b_must_acquire; /* must be acquired before writing */
+} vout_sys_t;
+
+/*****************************************************************************
+ * Functions exported as capabilities. They are declared as static so that
+ * we don't pollute the namespace too much.
+ *****************************************************************************/
+static void vout_getfunctions( function_list_t * p_function_list )
+{
+ p_function_list->functions.vout.pf_create = vout_Create;
+ p_function_list->functions.vout.pf_init = vout_Init;
+ p_function_list->functions.vout.pf_end = vout_End;
+ p_function_list->functions.vout.pf_destroy = vout_Destroy;
+ p_function_list->functions.vout.pf_manage = vout_Manage;
+ p_function_list->functions.vout.pf_render = vout_Render;
+ p_function_list->functions.vout.pf_display = vout_Display;
+}
+
+/*****************************************************************************
+ * vout_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.
+ *****************************************************************************/
+int vout_Create( vout_thread_t *p_vout )
+{
+ /* Allocate structure */
+ p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
+ if( p_vout->p_sys == NULL )
+ {
+ intf_ErrMsg( "vout error: %s", strerror(ENOMEM) );
+ return( 1 );
+ }
+
+ /* Open and initialize device */
+ if( OpenDisplay( p_vout ) )
+ {
+ intf_ErrMsg( "vout error: can't initialize GGI display" );
+ free( p_vout->p_sys );
+ return( 1 );
+ }
+
+ return( 0 );
+}
+
+/*****************************************************************************
+ * vout_Init: initialize GGI video thread output method
+ *****************************************************************************
+ * This function initialize the GGI display device.
+ *****************************************************************************/
+int vout_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 = FOURCC_RGB2;
+ p_vout->output.pf_setpalette = SetPalette;
+ break;
+ case 15:
+ p_vout->output.i_chroma = FOURCC_RV15; break;
+ case 16:
+ p_vout->output.i_chroma = FOURCC_RV16; break;
+ case 24:
+ p_vout->output.i_chroma = FOURCC_RV24; break;
+ case 32:
+ p_vout->output.i_chroma = FOURCC_RV32; break;
+ default:
+ intf_ErrMsg( "vout error: unknown screen depth" );
+ return 0;
+ }
+
+ /* 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 0;
+ }
+
+ /* 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_bytes = p_b[ 0 ]->buffer.plb.pixelformat->size / 8;
+ p_pic->p->i_lines = p_vout->p_sys->mode.visible.y;
+
+ 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->b_margin = 1;
+ p_pic->p->b_hidden = 1;
+ p_pic->p->i_pitch = p_b[ 0 ]->buffer.plb.stride;
+ p_pic->p->i_visible_bytes = p_b[ 0 ]->buffer.plb.pixelformat->size
+ / 8 * p_vout->p_sys->mode.visible.x;
+ }
+ else
+ {
+ p_pic->p->b_margin = 0;
+ p_pic->p->i_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( 0 );
+#undef p_b
+}
+
+/*****************************************************************************
+ * vout_End: terminate GGI video thread output method
+ *****************************************************************************
+ * Terminate an output method created by vout_Create
+ *****************************************************************************/
+void vout_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
+}
+
+/*****************************************************************************
+ * vout_Destroy: destroy GGI video thread output method
+ *****************************************************************************
+ * Terminate an output method created by vout_Create
+ *****************************************************************************/
+void vout_Destroy( vout_thread_t *p_vout )
+{
+ CloseDisplay( p_vout );
+
+ free( p_vout->p_sys );
+}
+
+/*****************************************************************************
+ * vout_Manage: handle GGI events
+ *****************************************************************************
+ * This function should be called regularly by video output thread. It returns
+ * a non null value if an error occured.
+ *****************************************************************************/
+int vout_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:
+ /* FIXME pass message ! */
+ p_main->p_intf->b_die = 1;
+ break;
+
+ default:
+ break;
+ }
+ break;
+
+ case evPtrButtonRelease:
+
+ switch( event.pbutton.button )
+ {
+ case GII_PBUTTON_RIGHT:
+ /* FIXME: need locking ! */
+ p_main->p_intf->b_menu_change = 1;
+ break;
+ }
+ break;
+
+ default:
+ break;
+ }
+ }
+
+ return( 0 );
+}
+
+/*****************************************************************************
+ * vout_Render: displays previously rendered output
+ *****************************************************************************/
+void vout_Render( vout_thread_t *p_vout, picture_t *p_pic )
+{
+ ;
+}
+
+/*****************************************************************************
+ * vout_Display: displays previously rendered output
+ *****************************************************************************/
+void vout_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() )
+ {
+ intf_ErrMsg( "vout error: can't initialize GGI library" );
+ return( 1 );
+ }
+
+ /* Open display */
+ psz_display = config_GetPszVariable( "display" );
+
+ p_vout->p_sys->p_display = ggiOpen( psz_display, NULL );
+ if( psz_display ) free( psz_display );
+
+ if( p_vout->p_sys->p_display == NULL )
+ {
+ intf_ErrMsg( "vout error: can't open GGI default display" );
+ ggiExit();
+ return( 1 );
+ }
+
+ /* Find most appropriate mode */
+ p_vout->p_sys->mode.frames = 2; /* 2 buffers */
+ p_vout->p_sys->mode.visible.x = config_GetIntVariable( "width" );
+ p_vout->p_sys->mode.visible.y = config_GetIntVariable( "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 ) )
+ {
+ intf_ErrMsg( "vout error: can't set GGI mode" );
+ ggiClose( p_vout->p_sys->p_display );
+ ggiExit();
+ return( 1 );
+ }
+
+ /* 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 )
+ {
+ intf_ErrMsg( "vout error: double buffering is not possible" );
+ ggiClose( p_vout->p_sys->p_display );
+ ggiExit();
+ return( 1 );
+ }
+
+ /* 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 ) )
+ {
+ intf_ErrMsg( "vout error: incorrect video memory type" );
+ ggiClose( p_vout->p_sys->p_display );
+ ggiExit();
+ return( 1 );
+ }
+
+ /* 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)) )
+ {
+ intf_ErrMsg( "vout error: can't set colors" );
+ ggiClose( p_vout->p_sys->p_display );
+ ggiExit();
+ return( 1 );
+ }
+
+ /* 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 ) )
+ {
+ intf_ErrMsg( "vout error: can't set clipping" );
+ ggiClose( p_vout->p_sys->p_display );
+ ggiExit();
+ return( 1 );
+ }
+
+ /* FIXME: set palette in 8bpp */
+ p_vout->p_sys->i_bits_per_pixel = p_b[ 0 ]->buffer.plb.pixelformat->depth;
+
+ return( 0 );
+#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, u16 *red, u16 *green, u16 *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 )
+ {
+ intf_ErrMsg( "vout error: failed setting palette" );
+ }
+}
+
projects / vlc / blobdiff