. rajout du mode video 'dummy' pour les gens qui n'ont pas de carte

  video. Le premier qui se marre se prend une claque.

Makefile

@@ -16,6 +16,7 @@
 # Video output settings
 VIDEO=X11
 #VIDEO=DGA (not yet supported)
+#VIDEO=DUMMY
 #VIDEO=FB
 #VIDEO=GGI
 #VIDEO=BEOS (not yet supported)

src/video_output/video_dummy.c

+/******************************************************************************
+ * vout_dummy.c: Dummy video output display method for testing purposes
+ * (c)2000 VideoLAN
+ ******************************************************************************/
+
+/******************************************************************************
+ * Preamble
+ ******************************************************************************/
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/uio.h>                                        /* for input.h */
+
+#include "config.h"
+#include "common.h"
+#include "mtime.h"
+#include "vlc_thread.h"
+
+#include "input.h"
+#include "video.h"
+#include "video_output.h"
+#include "video_sys.h"
+#include "intf_msg.h"
+#include "main.h"
+
+#define WIDTH 128
+#define HEIGHT 64
+#define BITS_PER_PLANE 16
+#define BYTES_PER_PIXEL 2
+
+/******************************************************************************
+ * vout_sys_t: dummy video output method descriptor
+ ******************************************************************************
+ * This structure is part of the video output thread descriptor.
+ * It describes the dummy specific properties of an output thread.
+ ******************************************************************************/
+typedef struct vout_sys_s
+{
+    /* Dummy video memory */
+    byte_t *                    p_video;                       /* base adress */    
+    size_t                      i_page_size;                     /* page size */
+
+} vout_sys_t;
+
+/******************************************************************************
+ * Local prototypes
+ ******************************************************************************/
+static int     DummyOpenDisplay   ( vout_thread_t *p_vout );
+static void    DummyCloseDisplay  ( vout_thread_t *p_vout );
+
+/******************************************************************************
+ * vout_SysCreate: allocates dummy video thread output method
+ ******************************************************************************
+ * This function allocates and initializes a dummy vout method.
+ ******************************************************************************/
+int vout_SysCreate( vout_thread_t *p_vout, char *psz_display, int i_root_window )
+{
+    /* Allocate structure */
+    p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
+    if( p_vout->p_sys == NULL )
+    {   
+        intf_ErrMsg("error: %s\n", strerror(ENOMEM) );
+        return( 1 );
+    }
+
+    /* Open and initialize device */
+    if( DummyOpenDisplay( p_vout ) )
+    {
+        intf_ErrMsg("vout error: can't open display\n");
+        free( p_vout->p_sys );
+        return( 1 );
+    }
+
+    return( 0 );
+}
+
+/******************************************************************************
+ * vout_SysInit: initialize dummy video thread output method
+ ******************************************************************************/
+int vout_SysInit( vout_thread_t *p_vout )
+{
+    return( 0 );
+}
+
+/******************************************************************************
+ * vout_SysEnd: terminate dummy video thread output method
+ ******************************************************************************/
+void vout_SysEnd( vout_thread_t *p_vout )
+{       
+    ;    
+}
+
+/******************************************************************************
+ * vout_SysDestroy: destroy dummy video thread output method
+ ******************************************************************************
+ * Terminate an output method created by vout_DummyCreateOutputMethod
+ ******************************************************************************/
+void vout_SysDestroy( vout_thread_t *p_vout )
+{
+    DummyCloseDisplay( p_vout );
+    free( p_vout->p_sys );
+}
+
+/******************************************************************************
+ * vout_SysManage: handle dummy events
+ ******************************************************************************
+ * This function should be called regularly by video output thread. It manages
+ * console events. It returns a non null value on error.
+ ******************************************************************************/
+int vout_SysManage( vout_thread_t *p_vout )
+{
+    return 0;
+}
+
+/******************************************************************************
+ * vout_SysDisplay: displays previously rendered output
+ ******************************************************************************
+ * This function send the currently rendered image to dummy image, waits until
+ * it is displayed and switch the two rendering buffers, preparing next frame.
+ ******************************************************************************/
+void vout_SysDisplay( vout_thread_t *p_vout )
+{
+    ;
+}
+
+/* following functions are local */
+
+/******************************************************************************
+ * DummyOpenDisplay: open and initialize dummy device 
+ ******************************************************************************
+ * ?? The framebuffer mode is only provided as a fast and efficient way to
+ * display video, providing the card is configured and the mode ok. It is
+ * not portable, and is not supposed to work with many cards. Use at your
+ * own risk !
+ ******************************************************************************/
+
+static int DummyOpenDisplay( vout_thread_t *p_vout )
+{
+    p_vout->i_width =                   WIDTH;
+    p_vout->i_height =                  HEIGHT;
+    p_vout->i_screen_depth =            BITS_PER_PLANE;
+    p_vout->i_bytes_per_pixel =         BYTES_PER_PIXEL;
+    p_vout->i_bytes_per_line =          WIDTH * BYTES_PER_PIXEL;
+
+    p_vout->p_sys->i_page_size = WIDTH * HEIGHT * BYTES_PER_PIXEL;
+
+    /* Map two framebuffers a the very beginning of the fb */
+    p_vout->p_sys->p_video = malloc( p_vout->p_sys->i_page_size * 2 );
+    if( (int)p_vout->p_sys->p_video == -1 )
+    {
+        intf_ErrMsg("vout error: can't map video memory (%s)\n", strerror(errno) );
+        return( 1 );
+    }
+
+    /* Set and initialize buffers */
+    vout_SetBuffers( p_vout, p_vout->p_sys->p_video, 
+                     p_vout->p_sys->p_video + p_vout->p_sys->i_page_size );
+    return( 0 );
+}    
+
+/******************************************************************************
+ * DummyCloseDisplay: close and reset dummy device 
+ ******************************************************************************
+ * Returns all resources allocated by DummyOpenDisplay and restore the original
+ * state of the device.
+ ******************************************************************************/
+static void DummyCloseDisplay( vout_thread_t *p_vout )
+{
+    free( p_vout->p_sys->p_video );
+}
+