]> git.sesse.net Git - vlc/blobdiff - modules/video_filter/logo.c
* modules/video_filter/blend.c: do not compare signed and unsigned.
[vlc] / modules / video_filter / logo.c
index 62ec22e4b602eba12554012d81c523e3dc861525..b009aabc1fcf3de6258bbf84a13821d83e3973d0 100644 (file)
@@ -1,8 +1,8 @@
 /*****************************************************************************
  * logo.c : logo video plugin for vlc
  *****************************************************************************
- * Copyright (C) 2000, 2001, 2002, 2003 VideoLAN
- * $Id: logo.c,v 1.3 2003/09/18 21:42:54 garf Exp $
+ * Copyright (C) 2003-2004 VideoLAN
+ * $Id$
  *
  * Authors: Simon Latapie <garf@videolan.org>
  *
@@ -55,23 +55,25 @@ static int MouseEvent( vlc_object_t *, char const *,
  * Module descriptor
  *****************************************************************************/
 
-#define FILE_TEXT N_("Logo File")
-#define FILE_LONGTEXT N_("It must be a PNG in RGBA 8bits (for now)")
-#define POSX_TEXT N_("x postion of the logo")
-#define POSX_LONGTEXT N_("You can move the logo by left-clicking on it" )
-#define POSY_TEXT N_("y position of the logo")
-#define POSY_LONGTEXT N_("You can move the logo by left-clicking on it" )
-#define TRANS_TEXT N_("transparency of the logo")
-#define TRANS_LONGTEXT N_("You can change it by middle-clicking and moving mouse left or right")
+#define FILE_TEXT N_("Logo filename")
+#define FILE_LONGTEXT N_("The file must be in PNG RGBA 8bits format (for now).")
+#define POSX_TEXT N_("X coordinate of the logo")
+#define POSX_LONGTEXT N_("You can move the logo by left-clicking on it." )
+#define POSY_TEXT N_("Y coordinate of the logo")
+#define POSY_LONGTEXT N_("You can move the logo by left-clicking on it." )
+#define TRANS_TEXT N_("Transparency of the logo (255-0)")
+#define TRANS_LONGTEXT N_("You can change it by middle-clicking and moving mouse left or right.")
 
 vlc_module_begin();
-    add_category_hint( N_("logo"), NULL, VLC_FALSE );
-    add_file( "logo_file", NULL, NULL, FILE_TEXT, FILE_LONGTEXT, VLC_FALSE );
-    add_integer( "logo_x", 0, NULL, POSX_TEXT, POSX_LONGTEXT, VLC_FALSE );
-    add_integer( "logo_y", 0, NULL, POSY_TEXT, POSY_LONGTEXT, VLC_FALSE );
-    add_float( "logo_transparency", 1, NULL, TRANS_TEXT, TRANS_LONGTEXT, VLC_FALSE );
-    set_description( _("logo video filter") );
+    set_description( _("Logo video filter") );
     set_capability( "video filter", 0 );
+
+    add_file( "logo-file", NULL, NULL, FILE_TEXT, FILE_LONGTEXT, VLC_FALSE );
+    add_integer( "logo-x", 0, NULL, POSX_TEXT, POSX_LONGTEXT, VLC_FALSE );
+    add_integer( "logo-y", 0, NULL, POSY_TEXT, POSY_LONGTEXT, VLC_FALSE );
+    add_integer_with_range( "logo-transparency", 255, 0, 255, NULL,
+        TRANS_TEXT, TRANS_LONGTEXT, VLC_FALSE );
+
     add_shortcut( "logo" );
     set_callbacks( Create, Destroy );
 vlc_module_end();
@@ -98,6 +100,14 @@ struct vout_sys_t
     int trans;
 };
 
+/*****************************************************************************
+ * Control: control facility for the vout (forwards to child vout)
+ *****************************************************************************/
+static int Control( vout_thread_t *p_vout, int i_query, va_list args )
+{
+    return vout_vaControl( p_vout->p_sys->p_vout, i_query, args );
+}
+
 /*****************************************************************************
  * Create: allocates logo video thread output method
  *****************************************************************************
@@ -120,6 +130,7 @@ static int Create( vlc_object_t *p_this )
     p_vout->pf_manage = NULL;
     p_vout->pf_render = Render;
     p_vout->pf_display = NULL;
+    p_vout->pf_control = Control;
 
     return VLC_SUCCESS;
 }
@@ -150,11 +161,11 @@ static int Init( vout_thread_t *p_vout )
     int i_parity_height;
 
     /*  read png file  */
-    filename = config_GetPsz( p_vout, "logo_file" );
+    filename = config_GetPsz( p_vout, "logo-file" );
     fp = fopen( filename , "rb");
     png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL , NULL , NULL);
     info_ptr = png_create_info_struct(png_ptr);
-    
+
     if (fp == NULL)
     {
         p_vout->p_sys->error=1;
@@ -181,7 +192,7 @@ static int Init( vout_thread_t *p_vout )
         /* initialize yuv plans of the image */
         i_parity_width = p_vout->p_sys->width % 2;
         i_parity_height = p_vout->p_sys->height % 2;
-        
+
         p_vout->p_sys->height = p_vout->p_sys->height
                              + (p_vout->p_sys->height % 2);
         p_vout->p_sys->width = p_vout->p_sys->width
@@ -203,7 +214,7 @@ static int Init( vout_thread_t *p_vout )
                 uint8_t (*p)[4];
                 int idx;
                 int idxc;
-                 
+
                 /* FIXME FIXME */
                 p = (void*)row_pointers[y];
                 idx = x + y * p_vout->p_sys->width;
@@ -219,7 +230,7 @@ static int Init( vout_thread_t *p_vout )
 
                     if( ( x % 2 == 0 ) && ( y % 2 == 0 ) )
                     {
-                
+
                         temp = (p[x][2] * 439
                               - p[x][0] * 148
                               - p[x][1] * 291)/1000 + 128;
@@ -235,7 +246,7 @@ static int Init( vout_thread_t *p_vout )
                         p_vout->p_sys->png_image_a[1][idxc] = p_vout->p_sys->png_image_a[0][idx];
 
                     }
-                    
+
                 } else
                 {
                     p_vout->p_sys->png_image_a[0][idx]= 0;
@@ -245,7 +256,7 @@ static int Init( vout_thread_t *p_vout )
         /* now we can free row_pointers*/
         free(row_pointers);
     }
-    
+
     I_OUTPUTPICTURES = 0;
 
     /* Initialize the output structure */
@@ -276,10 +287,12 @@ static int Init( vout_thread_t *p_vout )
     ALLOCATE_DIRECTBUFFERS( VOUT_MAX_PICTURES );
 
     ADD_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
-    
-    p_vout->p_sys->posx = config_GetInt( p_vout, "logo_x" );
-    p_vout->p_sys->posy = config_GetInt( p_vout, "logo_y" );
-    p_vout->p_sys->trans = (int)(config_GetFloat( p_vout, "logo_transparency" ) * 255);
+
+    ADD_PARENT_CALLBACKS( SendEventsToChild );
+
+    p_vout->p_sys->posx = config_GetInt( p_vout, "logo-x" );
+    p_vout->p_sys->posy = config_GetInt( p_vout, "logo-y" );
+    p_vout->p_sys->trans = config_GetInt( p_vout, "logo-transparency");
 
     return VLC_SUCCESS;
 }
@@ -301,13 +314,15 @@ static void End( vout_thread_t *p_vout )
     var_DelCallback( p_vout->p_sys->p_vout, "mouse-x", MouseEvent, p_vout);
     var_DelCallback( p_vout->p_sys->p_vout, "mouse-y", MouseEvent, p_vout);
 
-    DEL_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
-    vlc_object_detach( p_vout->p_sys->p_vout );
-    vout_Destroy( p_vout->p_sys->p_vout );
+    if( p_vout->p_sys->p_vout )
+    {
+        DEL_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
+        vlc_object_detach( p_vout->p_sys->p_vout );
+        vout_Destroy( p_vout->p_sys->p_vout );
+    }
 
-    config_PutInt( p_vout, "logo_x", p_vout->p_sys->posx );
-    config_PutInt( p_vout, "logo_y", p_vout->p_sys->posy );
-    config_PutFloat( p_vout, "logo_transparency", (float)(p_vout->p_sys->trans) / 255.0 );
+    config_PutInt( p_vout, "logo-x", p_vout->p_sys->posx );
+    config_PutInt( p_vout, "logo-y", p_vout->p_sys->posy );
 
     if (p_vout->p_sys->error == 0)
     {
@@ -328,6 +343,8 @@ static void Destroy( vlc_object_t *p_this )
 {
     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 
+    DEL_PARENT_CALLBACKS( SendEventsToChild );
+
     free( p_vout->p_sys );
 }
 
@@ -358,13 +375,13 @@ static void Render( vout_thread_t *p_vout, picture_t *p_pic )
     vout_DatePicture( p_vout->p_sys->p_vout, p_outpic, p_pic->date );
     vout_LinkPicture( p_vout->p_sys->p_vout, p_outpic );
 
-    
+
     tr = p_vout->p_sys->trans;
-    
+
     for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
     {
         memcpy( p_outpic->p[i_index].p_pixels,
-                p_pic->p[i_index].p_pixels, 
+                p_pic->p[i_index].p_pixels,
                 p_pic->p[i_index].i_lines * p_pic->p[i_index].i_pitch);
 
 
@@ -387,22 +404,22 @@ static void Render( vout_thread_t *p_vout, picture_t *p_pic )
             } else
             {
                 p_out  = p_outpic->p[i_index].p_pixels +
-                         (p_vout->p_sys->posy/2)* p_outpic->p[i_index].i_pitch +
+                            p_vout->p_sys->posy / 2 * p_outpic->p[i_index].i_pitch +
                          p_vout->p_sys->posx / 2;
                 i_max = p_vout->p_sys->height / 2;
                 j_max = p_vout->p_sys->width / 2;
             }
             i_delta = p_outpic->p[i_index].i_pitch - j_max;
-            
+
             p_in_a = p_vout->p_sys->png_image_a[i_index];
             p_in   = p_vout->p_sys->png_image[i_index];
 
-            
+
             for( i = 0; i < i_max ; i++ )
             {
                 for( j = 0 ; j < j_max ; j++)
                 {
-                    *p_out = ( *p_out * ( 65025 - *p_in_a * tr) + *p_in * *p_in_a * tr) >> 16;
+                    *p_out = ( *p_out * ( 65025 - *p_in_a * tr) + *p_in * *p_in_a * tr ) >> 16;
                     p_out++;
                     p_in++;
                     p_in_a++;
@@ -444,7 +461,7 @@ static int MouseEvent( vlc_object_t *p_this, char const *psz_var,
     #define width p_vout->p_sys->width
     #define height p_vout->p_sys->height
     #define trans p_vout->p_sys->trans
-        
+
     var_Get( p_vout->p_sys->p_vout, "mouse-button-down", &valb );
 
     i_delta = newval.i_int - oldval.i_int;
@@ -467,7 +484,7 @@ static int MouseEvent( vlc_object_t *p_this, char const *psz_var,
         {
             posx = __MIN( __MAX( posx + i_delta , 0 ) , p_vout->output.i_width - width );
         }
-        
+
     }
     else if( psz_var[6] == 'y' )
     {
@@ -499,3 +516,14 @@ static int MouseEvent( vlc_object_t *p_this, char const *psz_var,
 
     return VLC_SUCCESS;
 }
+
+/*****************************************************************************
+ * SendEventsToChild: forward events to the child/children vout
+ *****************************************************************************/
+static int SendEventsToChild( vlc_object_t *p_this, char const *psz_var,
+                       vlc_value_t oldval, vlc_value_t newval, void *p_data )
+{
+    vout_thread_t *p_vout = (vout_thread_t *)p_this;
+    var_Set( p_vout->p_sys->p_vout, psz_var, newval );
+    return VLC_SUCCESS;
+}