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vlc/plugins/beos/vout_beos.cpp

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/*****************************************************************************
* vout_beos.cpp: beos video output display method
*****************************************************************************
* Copyright (C) 2000, 2001 VideoLAN
* $Id: vout_beos.cpp,v 1.42 2002/02/24 20:51:09 gbazin Exp $
*
* Authors: Jean-Marc Dressler <polux@via.ecp.fr>
* Samuel Hocevar <sam@zoy.org>
* Tony Castley <tcastley@mail.powerup.com.au>
* Richard Shepherd <richard@rshepherd.demon.co.uk>
*
* 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
*****************************************************************************/
#include <errno.h> /* ENOMEM */
#include <stdlib.h> /* free() */
#include <stdio.h>
#include <string.h> /* strerror() */
#include <InterfaceKit.h>
#include <DirectWindow.h>
#include <Application.h>
#include <Bitmap.h>
extern "C"
{
#include <videolan/vlc.h>
#include "video.h"
#include "video_output.h"
#include "interface.h"
}
#include "VideoWindow.h"
#define BITS_PER_PLANE 16
#define BYTES_PER_PIXEL 2
/*****************************************************************************
* vout_sys_t: BeOS video output method descriptor
*****************************************************************************
* This structure is part of the video output thread descriptor.
* It describes the BeOS specific properties of an output thread.
*****************************************************************************/
typedef struct vout_sys_s
{
VideoWindow * p_window;
s32 i_width;
s32 i_height;
u8 *pp_buffer[2];
int i_index;
} vout_sys_t;
/*****************************************************************************
* beos_GetAppWindow : retrieve a BWindow pointer from the window name
*****************************************************************************/
BWindow *beos_GetAppWindow(char *name)
{
int32 index;
BWindow *window;
for (index = 0 ; ; index++)
{
window = be_app->WindowAt(index);
if (window == NULL)
break;
if (window->LockWithTimeout(20000) == B_OK)
{
if (strcmp(window->Name(), name) == 0)
{
window->Unlock();
break;
}
window->Unlock();
}
}
return window;
}
/****************************************************************************
* DrawingThread : thread that really does the drawing
****************************************************************************/
int32 Draw(void *data)
{
//rudolf: sync init:
BScreen *screen;
display_mode disp_mode;
static uint32 refresh, oldrefresh = 0;
screen = new BScreen();
screen-> GetMode(&disp_mode);
refresh =
(disp_mode.timing.pixel_clock * 1000)/((disp_mode.timing.h_total)*
(disp_mode.timing.v_total));
if (!(refresh == oldrefresh))
{
intf_WarnMsg( 1, "vout info: new refreshrate is %ld:Hz", refresh );
oldrefresh = refresh;
if (refresh < 61 )
{
intf_WarnMsg( 1, "vout info: enabling retrace sync" );
}
else
{
intf_WarnMsg( 1, "vout info: disabling retrace sync" );
}
}
VideoWindow* p_win;
p_win = (VideoWindow *) data;
if ( p_win-> voutWindow-> LockLooper() )
{
//rudolf: sync:
if (refresh < 61)
{
screen-> WaitForRetrace(22000);//set timeout for < 45 Hz...
}
p_win-> view-> DrawBitmap( p_win-> bitmap[p_win-> i_buffer],
p_win-> bitmap[p_win-> i_buffer]-> Bounds(),
p_win-> voutWindow-> Bounds() );
p_win-> voutWindow-> UnlockLooper();
}
return B_OK;
}
/*****************************************************************************
* bitmapWindow : This is the bitmap window output
*****************************************************************************/
bitmapWindow::bitmapWindow(BRect frame, VideoWindow *theOwner)
: BWindow( frame, NULL, B_TITLED_WINDOW,
B_OUTLINE_RESIZE | B_NOT_CLOSABLE | B_NOT_MINIMIZABLE )
{
is_zoomed = false;
origRect = frame;
owner = theOwner;
SetTitle(VOUT_TITLE " (BBitmap output)");
}
bitmapWindow::~bitmapWindow()
{
}
void bitmapWindow::FrameResized( float width, float height )
{
if (is_zoomed)
{
return;
}
float width_scale;
float height_scale;
width_scale = width / origRect.Width();
height_scale = height / origRect.Height();
/* if the width is proportionally smaller */
if (width_scale <= height_scale)
{
ResizeTo(width, origRect.Height() * width_scale);
}
else /* if the height is proportionally smaller */
{
ResizeTo(origRect.Width() * height_scale, height);
}
}
void bitmapWindow::Zoom(BPoint origin, float width, float height )
{
if(is_zoomed)
{
MoveTo(origRect.left, origRect.top);
ResizeTo(origRect.IntegerWidth(), origRect.IntegerHeight());
be_app->ShowCursor();
}
else
{
BScreen *screen;
screen = new BScreen(this);
BRect rect = screen->Frame();
delete screen;
MoveTo(0,0);
ResizeTo(rect.IntegerWidth(), rect.IntegerHeight());
be_app->HideCursor();
}
is_zoomed = !is_zoomed;
}
/*****************************************************************************
* directWindow : This is the bitmap window output
*****************************************************************************/
directWindow::directWindow(BRect frame, VideoWindow *theOwner)
: BDirectWindow( frame, NULL, B_TITLED_WINDOW,
B_OUTLINE_RESIZE | B_NOT_CLOSABLE | B_NOT_MINIMIZABLE )
{
is_zoomed = false;
origRect = frame;
owner = theOwner;
SetTitle(VOUT_TITLE " (DirectWindow output)");
}
directWindow::~directWindow()
{
}
void directWindow::DirectConnected(direct_buffer_info *info)
{
}
void directWindow::FrameResized( float width, float height )
{
if (is_zoomed)
{
return;
}
float width_scale;
float height_scale;
width_scale = width / origRect.Width();
height_scale = height / origRect.Height();
/* if the width is proportionally smaller */
if (width_scale <= height_scale)
{
ResizeTo(width, origRect.Height() * width_scale);
}
else /* if the height is proportionally smaller */
{
ResizeTo(origRect.Width() * height_scale, height);
}
}
void directWindow::Zoom(BPoint origin, float width, float height )
{
if(is_zoomed)
{
SetFullScreen(false);
MoveTo(origRect.left, origRect.top);
ResizeTo(origRect.IntegerWidth(), origRect.IntegerHeight());
be_app->ShowCursor();
}
else
{
SetFullScreen(true);
BScreen *screen;
screen = new BScreen(this);
BRect rect = screen->Frame();
delete screen;
MoveTo(0,0);
ResizeTo(rect.IntegerWidth(), rect.IntegerHeight());
be_app->HideCursor();
}
is_zoomed = !is_zoomed;
}
/*****************************************************************************
* VideoWindow constructor and destructor
*****************************************************************************/
VideoWindow::VideoWindow( int width, int height,
vout_thread_t *p_video_output )
{
if ( BDirectWindow::SupportsWindowMode() )
{
voutWindow = new directWindow( BRect( 80, 50,
80 + width, 50 + height ), this );
}
else
{
voutWindow = new bitmapWindow( BRect( 80, 50,
80 + width, 50 + height ), this );
}
/* set the VideoWindow variables */
teardownwindow = false;
/* create the view to do the display */
view = new VLCView( voutWindow->Bounds() );
voutWindow->AddChild(view);
/* Bitmap mode overlay not available, set the system to 32bits
* and let BeOS do all the work */
bitmap[0] = new BBitmap( voutWindow->Bounds(), B_RGB32);
bitmap[1] = new BBitmap( voutWindow->Bounds(), B_RGB32);
memset(bitmap[0]->Bits(), 0, bitmap[0]->BitsLength());
memset(bitmap[1]->Bits(), 0, bitmap[1]->BitsLength());
i_width = bitmap[0]->Bounds().IntegerWidth();
i_height = bitmap[0]->Bounds().IntegerHeight();
voutWindow->Show();
}
VideoWindow::~VideoWindow()
{
int32 result;
voutWindow->Hide();
voutWindow->Sync();
voutWindow->Lock();
voutWindow->Quit();
teardownwindow = true;
wait_for_thread(fDrawThreadID, &result);
delete bitmap[0];
delete bitmap[1];
}
void VideoWindow::resizeIfRequired( int newWidth, int newHeight )
{
if (( newWidth != i_width + 1) &&
( newHeight != i_height + 1) &&
( newWidth != 0 ))
{
if ( voutWindow->Lock() )
{
view->ClearViewBitmap();
i_width = newWidth - 1;
i_height = newHeight -1;
voutWindow->ResizeTo((float) i_width, (float) i_height);
voutWindow->Unlock();
}
}
}
void VideoWindow::drawBuffer(int bufferIndex)
{
status_t status;
i_buffer = bufferIndex;
fDrawThreadID = spawn_thread(Draw, "drawing_thread",
B_DISPLAY_PRIORITY, (void*) this);
wait_for_thread(fDrawThreadID, &status);
}
/*****************************************************************************
* VLCView::VLCView
*****************************************************************************/
VLCView::VLCView(BRect bounds) : BView(bounds, "", B_FOLLOW_ALL, B_WILL_DRAW)
{
SetViewColor(B_TRANSPARENT_32_BIT);
}
/*****************************************************************************
* VLCView::~VLCView
*****************************************************************************/
VLCView::~VLCView()
{
}
/*****************************************************************************
* VLCVIew::~VLCView
*****************************************************************************/
void VLCView::MouseDown(BPoint point)
{
BWindow *win = Window();
win->Zoom();
}
extern "C"
{
/*****************************************************************************
* Local prototypes
*****************************************************************************/
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_Display ( vout_thread_t *, picture_t * );
static void vout_Render ( vout_thread_t *, picture_t * );
static int BeosOpenDisplay ( vout_thread_t *p_vout );
static void BeosCloseDisplay( vout_thread_t *p_vout );
/*****************************************************************************
* Functions exported as capabilities. They are declared as static so that
* we don't pollute the namespace too much.
*****************************************************************************/
void _M( 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_display = vout_Display;
p_function_list->functions.vout.pf_render = vout_Render;
}
/*****************************************************************************
* vout_Create: allocates BeOS video thread output method
*****************************************************************************
* This function allocates and initializes a BeOS vout method.
*****************************************************************************/
int vout_Create( vout_thread_t *p_vout )
{
/* Allocate structure */
p_vout->p_sys = (vout_sys_t*) malloc( sizeof( vout_sys_t ) );
if( p_vout->p_sys == NULL )
{
intf_ErrMsg( "error: %s", strerror(ENOMEM) );
return( 1 );
}
if( p_vout->render.i_height * p_vout->render.i_aspect
>= p_vout->render.i_width * VOUT_ASPECT_FACTOR )
{
p_vout->p_sys->i_width = p_vout->render.i_height
* p_vout->render.i_aspect / VOUT_ASPECT_FACTOR;
p_vout->p_sys->i_height = p_vout->render.i_height;
}
else
{
p_vout->p_sys->i_width = p_vout->render.i_width;
p_vout->p_sys->i_height = p_vout->render.i_width
* VOUT_ASPECT_FACTOR / p_vout->render.i_aspect;
}
/* Open and initialize device */
if( BeosOpenDisplay( p_vout ) )
{
intf_ErrMsg("vout error: can't open display");
free( p_vout->p_sys );
return( 1 );
}
return( 0 );
}
/*****************************************************************************
* vout_Init: initialize BeOS video thread output method
*****************************************************************************/
int vout_Init( vout_thread_t *p_vout )
{
VideoWindow *p_win = p_vout->p_sys->p_window;
int i_index;
picture_t *p_pic;
I_OUTPUTPICTURES = 0;
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;
p_vout->output.i_chroma = FOURCC_RV32;
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;
}
p_vout->p_sys->i_index = 0;
p_pic->p->p_pixels = p_vout->p_sys->pp_buffer[0];
p_pic->p->i_pixel_bytes = 4;
p_pic->p->i_lines = p_vout->p_sys->i_height;
p_pic->p->b_margin = 0;
p_pic->p->i_pitch = 4 * p_vout->p_sys->i_width;
p_pic->p->i_red_mask = 0x00ff0000;
p_pic->p->i_green_mask = 0x0000ff00;
p_pic->p->i_blue_mask = 0x000000ff;
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( 0 );
}
/*****************************************************************************
* vout_End: terminate BeOS video thread output method
*****************************************************************************/
void vout_End( vout_thread_t *p_vout )
{
/* place code here to end the video */
}
/*****************************************************************************
* vout_Destroy: destroy BeOS video thread output method
*****************************************************************************
* Terminate an output method created by DummyCreateOutputMethod
*****************************************************************************/
void vout_Destroy( vout_thread_t *p_vout )
{
BeosCloseDisplay( p_vout );
free( p_vout->p_sys );
}
/*****************************************************************************
* vout_Manage: handle BeOS 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_Manage( vout_thread_t *p_vout )
{
VideoWindow * p_win = p_vout->p_sys->p_window;
// p_win->resizeIfRequired(p_vout->p_sys->pp_buffer[p_vout->p_sys->i_index].i_pic_width,
// p_vout->p_sys->pp_buffer[p_vout->p_sys->i_index].i_pic_height);
return( 0 );
}
/*****************************************************************************
* vout_Render: render previously calculated output
*****************************************************************************/
void vout_Render( vout_thread_t *p_vout, picture_t *p_pic )
{
;
}
/*****************************************************************************
* vout_Display: displays previously rendered output
*****************************************************************************
* This function send the currently rendered image to BeOS image, waits until
* it is displayed and switch the two rendering buffers, preparing next frame.
*****************************************************************************/
void vout_Display( vout_thread_t *p_vout, picture_t *p_pic )
{
VideoWindow * p_win = p_vout->p_sys->p_window;
/* draw buffer if required */
if (!p_win->teardownwindow)
{
p_win->drawBuffer(p_vout->p_sys->i_index);
}
/* change buffer */
p_vout->p_sys->i_index = ++p_vout->p_sys->i_index & 1;
p_pic->p->p_pixels = p_vout->p_sys->pp_buffer[p_vout->p_sys->i_index];
}
/* following functions are local */
/*****************************************************************************
* BeosOpenDisplay: open and initialize BeOS device
*****************************************************************************/
static int BeosOpenDisplay( vout_thread_t *p_vout )
{
p_vout->p_sys->p_window = new VideoWindow(
config_GetIntVariable( VOUT_WIDTH_VAR ) - 1,
config_GetIntVariable( VOUT_HEIGHT_VAR ) - 1,
p_vout );
if( p_vout->p_sys->p_window == NULL )
{
intf_ErrMsg( "error: cannot allocate memory for VideoWindow" );
return( 1 );
}
p_vout->p_sys->i_width = p_vout->p_sys->p_window->i_width + 1;
p_vout->p_sys->i_height = p_vout->p_sys->p_window->i_height + 1;
p_vout->p_sys->pp_buffer[0] = (u8*)p_vout->p_sys->p_window->bitmap[0]->Bits();
p_vout->p_sys->pp_buffer[1] = (u8*)p_vout->p_sys->p_window->bitmap[1]->Bits();
return( 0 );
}
/*****************************************************************************
* BeosDisplay: close and reset BeOS device
*****************************************************************************
* Returns all resources allocated by BeosOpenDisplay and restore the original
* state of the device.
*****************************************************************************/
static void BeosCloseDisplay( vout_thread_t *p_vout )
{
/* Destroy the video window */
delete p_vout->p_sys->p_window;
}
} /* extern "C" */