HD1000 video output

AUTHORS

@@ -282,6 +282,7 @@ D: Familiar and PDA Linux interface
 D: Opie PDA Linux interface
 D: Dutch Translation
 D: DVB-S/C/T on v4l2 API
+D: HD1000 port 
 S: Netherlands
 
 N: Arnaud Schauly

configure.ac

@@ -2677,6 +2677,31 @@ dnl  LDFLAGS="${LDFLAGS_save}"
 dnl  AX_ADD_CXXFLAGS([qt_video],[-I/usr/include/qt3 -I/usr/include/qt -I${QTDIR}/include])
 dnl fi
 
+dnl
+dnl Roku HD1000 Video output module
+dnl
+AC_ARG_ENABLE(hd1000v,
+  [  --enable-hd1000v        HD1000 Video Output module (default enabled on HD1 000)])
+if test "${enable_hd1000v}" != "no" &&
+  (test "${SYS}" != "mingw32" || test "${enable_hd1000v}" = "yes")
+then
+  AC_LANG_PUSH([C++])
+  AC_CHECK_HEADERS([cascade/graphics/CascadeScreen.h cascade/graphics/CascadeBitmap.h],
+  [
+    can_build_roku="yes"
+  ],
+  [
+    can_build_roku="no"
+    AC_MSG_WARN([Not building Roku HD1000 compatible video output])
+  ])
+  if test "$can_build_roku" = "yes"
+  then
+    AX_ADD_PLUGINS([hd1000v])
+    AX_ADD_LDFLAGS([hd1000v],[-lCascade])
+  fi
+  AC_LANG_POP([C++])
+fi
+
 dnl
 dnl  Windows DirectX module
 dnl

modules/LIST

@@ -187,6 +187,8 @@ $Id$
 
  * hd1000a: audio output module for the Roku HD1000 Set-Top-Box
 
+ * hd1000v: video output module for the Roku HD1000 Set-Top-Box
+
  * headphone_channel_mixer:
 	 headphone channel mixer with virtual spatialization effect.
 
@@ -338,9 +340,9 @@ $Id$
 
  * qt: interface module using the Qt widget set.
 
- * qte: video output module for Qt Embedded.
+ * qt_video: video output module for Qt.
 
- * qte_main: QT Embedded wrapper for gte_main
+ * qte: video output module for Qt Embedded.
  
  * quicktime: Quicktime decoder that uses the QT library
 

modules/video_output/Modules.am

@@ -7,3 +7,4 @@ SOURCES_vout_sdl = sdl.c
 SOURCES_svgalib = svgalib.c
 SOURCES_wingdi = wingdi.c
 SOURCES_mga = mga.c
+SOURCES_hd1000v = hd1000v.cpp

modules/video_output/hd1000v.cpp

+/*****************************************************************************
+ * hd1000v.cpp: HD1000 video output display method
+ *****************************************************************************
+ * Copyright (C) 2004 VideoLAN
+ * $Id: hd1000v.cpp 6961 2004-03-05 17:34:23Z jpsaman $
+ *
+ * Authors: Jean-Paul Saman <jpsaman@wxs.nl>
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
+ *****************************************************************************/
+
+/*****************************************************************************
+ * Preamble
+ *****************************************************************************/
+extern "C" {
+#include <errno.h>                                                 /* ENOMEM */
+#include <stdlib.h>                                                /* free() */
+#include <string.h>                                            /* strerror() */
+
+#include <vlc/vlc.h>
+#include <vlc/vout.h>
+#include <vlc/intf.h>
+}
+
+#include <cascade/graphics/CascadeBitmap.h>
+#include <cascade/graphics/CascadeScreen.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 void Display   ( vout_thread_t *, picture_t * );
+
+static int NewPicture ( vout_thread_t *, picture_t * );
+static void FreePicture( vout_thread_t *, picture_t * );
+
+/*****************************************************************************
+ * Module descriptor
+ *****************************************************************************/
+vlc_module_begin();
+    set_description( _("HD1000 video output") );
+    set_capability( "video output", 10 );
+    add_shortcut( "hd1000v" );
+    set_callbacks( Create, Destroy );
+vlc_module_end();
+
+/*****************************************************************************
+ * vout_sys_t: video output method descriptor
+ *****************************************************************************
+ * This structure is part of the video output thread descriptor.
+ * It describes the aa specific properties of an output thread.
+ *****************************************************************************/
+struct vout_sys_t
+{
+    uint32_t            i_width;                     /* width of main window */
+    uint32_t            i_height;                   /* height of main window */
+    uint32_t            i_screen_depth;
+    vlc_bool_t          b_double_buffered;
+    
+    uint32_t            u_current; /* Current output resolution. */
+    CascadeScreen      *p_screen;
+};
+
+struct picture_sys_t
+{
+    CascadeSharedMemZone *p_image;
+};
+
+/*****************************************************************************
+ * Create: allocates video thread output method
+ *****************************************************************************
+ * This function allocates and initializes a aa vout method.
+ *****************************************************************************/
+static int Create( vlc_object_t *p_this )
+{
+    vout_thread_t *p_vout = (vout_thread_t *)p_this;
+    bool b_double_buffered = false;
+    
+    p_vout->p_sys = (struct vout_sys_t*) malloc( sizeof(struct vout_sys_t) );
+    if( p_vout->p_sys == NULL )
+    {
+        msg_Err( p_vout, "out of memory" );
+        return VLC_EGENERIC;
+    }
+
+    /* Allocate a screen for VLC vout. */
+    p_vout->p_sys->p_screen = new CascadeScreen();
+    if( p_vout->p_sys->p_screen == NULL )
+    {
+        msg_Err( p_vout, "unable to allocate screen" );
+        free( p_vout->p_sys );
+        return VLC_EGENERIC;
+    }
+
+    p_vout->pf_init = Init;
+    p_vout->pf_end = End;
+    p_vout->pf_manage = NULL;
+    p_vout->pf_render = NULL;
+    p_vout->pf_display = Display;
+
+    /* Get current screen resolution */
+    msg_Dbg( p_vout, "Number of screen resolutions supported %u",
+      p_vout->p_sys->p_screen->GetNumScreenResolutionsSupported() );
+      
+    p_vout->p_sys->p_screen->GetCurrentOutputResolution( (u32) p_vout->p_sys->u_current );
+    p_vout->p_sys->p_screen->GetSupportedScreenResolutionAt( (u32) p_vout->p_sys->u_current,
+            (u32) p_vout->p_sys->i_width,
+            (u32) p_vout->p_sys->i_height,
+            (u8) p_vout->p_sys->i_screen_depth,
+            b_double_buffered);
+    p_vout->p_sys->b_double_buffered = (vlc_bool_t) b_double_buffered;
+    msg_Dbg( p_vout, "index = %u, width = %u, height = %u, depth = %u, double buffered = %d",
+            p_vout->p_sys->u_current,
+            p_vout->p_sys->i_width,
+            p_vout->p_sys->i_height,
+            p_vout->p_sys->i_screen_depth,
+            p_vout->p_sys->b_double_buffered );
+
+    return VLC_SUCCESS;
+}
+
+static void Destroy( vlc_object_t *p_this )
+{
+    vout_thread_t *p_vout = (vout_thread_t *)p_this;
+
+    delete p_vout->p_sys->p_screen;
+    free( p_vout->p_sys );
+}
+
+/*****************************************************************************
+ * Init: initialize video thread output method
+ *****************************************************************************/
+static int Init( vout_thread_t *p_vout )
+{
+    int i_index;
+    picture_t *p_pic = NULL;
+
+    I_OUTPUTPICTURES = 0;
+
+    p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2');
+    p_vout->output.i_width = p_vout->p_sys->i_width;
+    p_vout->output.i_height = p_vout->p_sys->i_height;
+    p_vout->output.i_aspect = p_vout->p_sys->i_width
+                               * VOUT_ASPECT_FACTOR / p_vout->p_sys->i_height;
+
+    /* Only RGBA 32bpp is supported by output device. */
+    switch( p_vout->p_sys->i_screen_depth )
+    {
+        case 8: /* FIXME: set the palette */
+            p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2'); break;
+        case 15:
+            p_vout->output.i_chroma = VLC_FOURCC('R','V','1','5'); break;
+        case 16:
+            p_vout->output.i_chroma = VLC_FOURCC('R','V','1','6'); break;
+        case 24:
+            p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4'); break;
+        case 32:
+            p_vout->output.i_chroma = VLC_FOURCC('R','V','3','2'); break;
+        default:
+            msg_Err( p_vout, "unknown screen depth %i",
+                     p_vout->p_sys->i_screen_depth );
+            return VLC_SUCCESS;
+    }
+
+    /* 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 || NewPicture( p_vout, p_pic ) )
+    {
+        return -1;
+    }
+
+    /* Allocate the picture */
+    p_pic->p->i_lines = p_vout->p_sys->i_height;
+    p_pic->p->i_pitch = p_vout->p_sys->i_width;
+    p_pic->p->i_pixel_pitch = 1;
+    p_pic->p->i_visible_pitch = p_vout->p_sys->i_width;
+    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 video thread output method
+ *****************************************************************************/
+static void End( vout_thread_t *p_vout )
+{
+    int i_index;
+
+    /* Free the direct buffers we allocated */
+    for( i_index = I_OUTPUTPICTURES ; i_index ; )
+    {
+        i_index--;
+        FreePicture( p_vout, PP_OUTPUTPICTURE[ i_index ] );
+    }
+}
+
+/*****************************************************************************
+ * NewPicture: Allocate shared memory zone for video output
+ *****************************************************************************/
+static int NewPicture( vout_thread_t *p_vout, picture_t *p_pic )
+{
+    CascadeDims p_dims = p_vout->p_sys->p_screen->GetDims();
+
+    p_pic->p_sys = (picture_sys_t *) malloc( sizeof( picture_sys_t ) );
+    if( p_pic->p_sys == NULL )
+    {
+        return -1;
+    }
+
+    /* Fill in picture_t fields */
+    vout_InitPicture( VLC_OBJECT(p_vout), p_pic, p_vout->output.i_chroma,
+                      p_vout->output.i_width, p_vout->output.i_height,
+                      p_vout->output.i_aspect );
+
+    p_pic->p_sys->p_image = new CascadeSharedMemZone();
+    if( p_pic->p_sys->p_image == NULL )
+    {
+        free( p_pic->p_sys );
+        return -1;
+    }
+
+    if( p_pic->p_sys->p_image->Open( "vlc_hd1000v", p_vout->output.i_width *
+            p_vout->output.i_height * p_vout->p_sys->i_screen_depth,
+            true ) )
+    {
+        msg_Err( p_vout, "failed to allocate shared memory" );
+        free( p_pic->p_sys );
+        return -1;
+    }
+    
+    p_pic->p->i_lines = p_vout->output.i_height;
+    p_pic->p->p_pixels = (uint8_t*) p_pic->p_sys->p_image->MapLock();
+    p_pic->p->i_pitch = p_vout->p_sys->i_screen_depth;
+    p_pic->p->i_visible_pitch = p_pic->p->i_pixel_pitch
+                                 * p_vout->output.i_width;
+
+    return VLC_SUCCESS;                                 
+}
+
+/*****************************************************************************
+ * FreePicture: destroy a picture allocated with NewPicture
+ *****************************************************************************
+ * Destroy SharedMemZoned AND associated data. The picture normally will be
+ * unlocked in the Display() function except when the video output is closed
+ * before the picture is displayed.
+ *****************************************************************************/
+static void FreePicture( vout_thread_t *p_vout, picture_t *p_pic )
+{
+    if( p_pic->p_sys->p_image->Unlock() )
+    { /* Just a test to see the effect described above. REMOVE THIS */
+        msg_Err( p_vout, "unlocking shared memory failed, already unlocked" );
+    }
+    
+    if( p_pic->p_sys->p_image->Close() )
+    {
+        msg_Err( p_vout, "closing shared memory failed. Leaking memory of %ul",
+                    p_pic->p_sys->p_image->GetSize() );
+    }
+    
+    delete p_pic->p_sys->p_image;
+    free( p_pic->p_sys );
+}
+
+/*****************************************************************************
+ * Display: Map p_image onto the screen
+ *****************************************************************************/
+static void Display( vout_thread_t *p_vout, picture_t *p_pic )
+{
+    uint32_t i_width, i_height, i_x, i_y;
+    uint32_t i_offset = 0;
+    
+    vout_PlacePicture( p_vout, p_vout->p_sys->i_width,
+                       p_vout->p_sys->i_height,
+                       &i_x, &i_y, &i_width, &i_height );
+    msg_Dbg( p_vout, "PlacePicture at x_left = %d, y_left = %d, x_bottom = %d, y_bottom = %d",
+                i_x, i_y, i_width, i_height );
+
+    /* Currently the only pixel format supported is 32bpp RGBA.*/
+    p_vout->p_sys->p_screen->LockScreen();
+    
+    /* Unlock the shared memory region first. */
+    if( p_pic->p_sys->p_image->Unlock() ) 
+    {
+        msg_Err( p_vout, "unlocking shared memory failed. Expect threading problems." );
+    }
+    
+    p_vout->p_sys->p_screen->Blit( CascadePoint( (u32) i_x, (u32) i_y ), /* Place bitmap at */
+            (*p_pic->p_sys->p_image)   ,                                      /* Image data */
+            (u32) i_offset,                                   /* Offset in SharedMemoryZone */
+            (u32) i_width,                                           /* Source bitmap width */
+            (u32) i_height,                                         /* Source bitmap height */
+            (u32) p_vout->p_sys->i_screen_depth,                      /* Source pixel depth */
+            CascadeRect( (u32) i_x, (u32) i_y, (u32) i_width, (u32) i_height ) );
+            
+    p_vout->p_sys->p_screen->UnlockScreen();
+}