* wingdi.c : Win32 / WinCE GDI video output plugin for vlc
*****************************************************************************
* Copyright (C) 2002 VideoLAN
- * $Id: wingdi.c,v 1.1 2002/11/21 13:53:32 sam Exp $
+ * $Id: wingdi.c,v 1.2 2002/11/22 15:19:47 sam Exp $
*
* Authors: Samuel Hocevar <sam@zoy.org>
*
#include <vlc/vlc.h>
#include <vlc/vout.h>
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
#define MAX_DIRECTBUFFERS 10
+#define DEFAULT_BPP 8
/*****************************************************************************
* Local prototypes
static int Manage ( vout_thread_t * );
static void Render ( vout_thread_t *, picture_t * );
static void Display ( vout_thread_t *, picture_t * );
+static void SetPalette( vout_thread_t *, u16 *, u16 *, u16 * );
+
+static void EventThread ( vlc_object_t * );
+static long FAR PASCAL WndProc ( HWND, UINT, WPARAM, LPARAM );
+static void InitOffscreen ( vout_thread_t * );
+
+/*****************************************************************************
+ * Private structure
+ *****************************************************************************/
+struct vout_sys_t
+{
+ /* The event thread */
+ vlc_object_t * p_event;
+
+ /* Our video output window */
+ HWND window;
+
+ /* Our offscreen bitmap and its framebuffer */
+ HDC off_dc;
+ HBITMAP off_bitmap;
+ BITMAPINFO bitmapinfo;
+ uint8_t * p_buffer;
+};
/*****************************************************************************
* Module descriptor
static int OpenVideo ( vlc_object_t *p_this )
{
vout_thread_t * p_vout = (vout_thread_t *)p_this;
+ vlc_value_t val;
+
+ p_vout->p_sys = malloc( sizeof(vout_sys_t) );
+ if( !p_vout->p_sys )
+ {
+ return VLC_ENOMEM;
+ }
+
+ p_vout->p_sys->p_event = vlc_object_create( p_vout, VLC_OBJECT_GENERIC );
+ if( !p_vout->p_sys->p_event )
+ {
+ free( p_vout->p_sys );
+ return VLC_ENOMEM;
+ }
+
+ var_Create( p_vout->p_sys->p_event, "p_vout", VLC_VAR_ADDRESS );
+ val.p_address = (void *)p_vout;
+ var_Set( p_vout->p_sys->p_event, "p_vout", val );
p_vout->pf_init = Init;
p_vout->pf_end = End;
*****************************************************************************/
static void CloseVideo ( vlc_object_t *p_this )
{
- ;
+ vout_thread_t * p_vout = (vout_thread_t *)p_this;
+
+ var_Destroy( p_vout->p_sys->p_event, "p_vout" );
+ vlc_object_destroy( p_vout->p_sys->p_event );
+ free( p_vout->p_sys );
}
/*****************************************************************************
int i_index;
picture_t *p_pic;
+ if( vlc_thread_create( p_vout->p_sys->p_event, "GDI Event Thread",
+ EventThread, 0, 1 ) )
+ {
+ msg_Err( p_vout, "cannot spawn EventThread" );
+ return VLC_ETHREAD;
+ }
+
I_OUTPUTPICTURES = 0;
- /* Initialize the output structure */
- p_vout->output.i_chroma = VLC_FOURCC('R','V','1','6');
- p_vout->output.i_rmask = 0xf800;
- p_vout->output.i_gmask = 0x07e0;
+ /* Initialize the output structure - we can use either 8 or 15bpp */
+#if DEFAULT_BPP == 8
+ p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2');
+ p_vout->output.pf_setpalette = SetPalette;
+#else
+ p_vout->output.i_chroma = VLC_FOURCC('R','V','1','5');
+ p_vout->output.i_rmask = 0x7c00;
+ p_vout->output.i_gmask = 0x03e0;
p_vout->output.i_bmask = 0x001f;
+#endif
p_vout->output.i_width = p_vout->render.i_width;
p_vout->output.i_height = p_vout->render.i_height;
p_vout->output.i_aspect = p_vout->render.i_aspect;
i_index--;
free( PP_OUTPUTPICTURE[ i_index ]->p_data_orig );
}
+
+ p_vout->p_sys->p_event->b_die = VLC_TRUE;
+ PostMessage( p_vout->p_sys->window, WM_NULL, 0, 0 );
+ vlc_thread_join( p_vout->p_sys->p_event );
}
/*****************************************************************************
static void Display( vout_thread_t *p_vout, picture_t *p_pic )
{
/* No need to do anything, the fake direct buffers stay as they are */
+ HDC hdc;
+ int y;
+
+ hdc = GetDC( p_vout->p_sys->window );
+ SelectObject( p_vout->p_sys->off_dc, p_vout->p_sys->off_bitmap );
+
+ /* Stupid GDI is upside-down */
+ for( y = p_pic->p->i_lines ; y-- ; )
+ {
+ memcpy( p_vout->p_sys->p_buffer
+ + p_pic->p->i_pitch * (p_pic->p->i_lines-y),
+ p_pic->p->p_pixels + p_pic->p->i_pitch * y,
+ p_pic->p->i_pitch );
+ }
+
+ BitBlt( hdc, 0, 0, p_vout->output.i_width, p_vout->output.i_height,
+ p_vout->p_sys->off_dc, 0, 0, SRCCOPY );
+
+ ReleaseDC( p_vout->p_sys->window, hdc );
+}
+
+/*****************************************************************************
+ * SetPalette: sets an 8 bpp palette
+ *****************************************************************************/
+static void SetPalette( vout_thread_t *p_vout, u16 *red, u16 *green, u16 *blue )
+{
+ msg_Err( p_vout, "FIXME: SetPalette unimplemented" );
+}
+
+/*****************************************************************************
+ * EventThread: Event handling thread
+ *****************************************************************************/
+static void EventThread ( vlc_object_t *p_event )
+{
+ vout_thread_t * p_vout;
+ vlc_value_t val;
+
+ HINSTANCE instance;
+ WNDCLASS wc;
+ MSG msg;
+
+ var_Get( p_event, "p_vout", &val );
+ p_vout = (vout_thread_t *)val.p_address;
+
+ instance = GetModuleHandle( NULL );
+
+ /* Register window class */
+ memset( &wc, 0, sizeof(wc) );
+ wc.style = CS_HREDRAW | CS_VREDRAW;
+ wc.lpfnWndProc = (WNDPROC)WndProc;
+ wc.cbClsExtra = 0;
+ wc.cbWndExtra = 0;
+ wc.hInstance = instance;
+ wc.hIcon = 0;
+ wc.hCursor = 0;
+ wc.hbrBackground = (HBRUSH)GetStockObject( BLACK_BRUSH );
+ wc.lpszMenuName = 0;
+ wc.lpszClassName = L"VOUT";
+
+ RegisterClass( &wc );
+
+ /* Create output window */
+ p_vout->p_sys->window =
+ CreateWindow( L"VOUT", L"Video Output",
+ WS_VISIBLE | WS_SIZEBOX | WS_CAPTION,
+ CW_USEDEFAULT, CW_USEDEFAULT,
+ p_vout->render.i_width,
+ p_vout->render.i_height + 10,
+ NULL, NULL, instance, (LPVOID)p_vout );
+
+ /* Display our window */
+ ShowWindow( p_vout->p_sys->window, SW_SHOWNORMAL );
+ UpdateWindow( p_vout->p_sys->window );
+
+ vlc_thread_ready( p_event );
+
+ while( !p_event->b_die
+ && GetMessage( &msg, p_vout->p_sys->window, 0, 0 ) )
+ {
+ if( p_event->b_die )
+ {
+ break;
+ }
+
+ DispatchMessage( &msg );
+ }
+
+ DestroyWindow( p_vout->p_sys->window );
+}
+
+/*****************************************************************************
+ * Message handler for the main window
+ *****************************************************************************/
+static long FAR PASCAL WndProc ( HWND hWnd, UINT message,
+ WPARAM wParam, LPARAM lParam )
+{
+ /* Caution: this only works */
+ vout_thread_t *p_vout;
+
+ if( message == WM_CREATE )
+ {
+ /* Store p_vout for future use */
+ p_vout = (vout_thread_t *)((CREATESTRUCT *)lParam)->lpCreateParams;
+ SetWindowLong( hWnd, GWL_USERDATA, (LONG)p_vout );
+ }
+ else
+ {
+ p_vout = (vout_thread_t *)GetWindowLong( hWnd, GWL_USERDATA );
+ }
+
+ switch( message )
+ {
+ case WM_LBUTTONDOWN:
+ break;
+ case WM_MOUSEMOVE:
+ break;
+ case WM_LBUTTONUP:
+ break;
+
+ case WM_CREATE:
+ InitOffscreen( p_vout );
+ break;
+
+ case WM_DESTROY:
+ DeleteDC( p_vout->p_sys->off_dc );
+ DeleteObject( p_vout->p_sys->off_bitmap );
+ PostQuitMessage( 0 );
+ break;
+
+ default:
+ return DefWindowProc( hWnd, message, wParam, lParam );
+ }
+
+ return 0;
+}
+
+/*****************************************************************************
+ * InitOffscreen: initialize an offscreen bitmap for direct buffer operations.
+ *****************************************************************************/
+static void InitOffscreen( vout_thread_t *p_vout )
+{
+ BITMAPINFOHEADER *p_header = &p_vout->p_sys->bitmapinfo.bmiHeader;
+ HDC window_dc;
+
+ window_dc = GetDC( p_vout->p_sys->window );
+
+ p_header->biSize = sizeof( BITMAPINFOHEADER );
+ p_header->biPlanes = 1;
+ p_header->biCompression = BI_RGB;
+#if DEFAULT_BPP == 8
+ p_header->biBitCount = 8;
+ p_header->biSizeImage =
+ p_vout->render.i_height * p_vout->render.i_width;
+#else
+ p_header->biBitCount = 16;
+ p_header->biSizeImage =
+ p_vout->render.i_height * p_vout->render.i_width * 2;
+#endif
+ p_header->biWidth = p_vout->render.i_width;
+ p_header->biHeight = p_vout->render.i_height;
+ p_header->biClrImportant = 0;
+ p_header->biClrUsed = 0;
+ p_header->biXPelsPerMeter = 0;
+ p_header->biYPelsPerMeter = 0;
+
+ p_vout->p_sys->off_bitmap =
+ CreateDIBSection( window_dc, (BITMAPINFO *)p_header, DIB_RGB_COLORS,
+ (void**)&p_vout->p_sys->p_buffer, NULL, 0 );
+
+ p_vout->p_sys->off_dc = CreateCompatibleDC( window_dc );
+
+ SelectObject( p_vout->p_sys->off_dc, p_vout->p_sys->off_bitmap );
+ ReleaseDC( 0, window_dc );
}
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