--- /dev/null
+/*****************************************************************************
+ * 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();
+}
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