+++ /dev/null
-/*****************************************************************************
- * vout.c: Windows DirectX video output display method
- *****************************************************************************
- * Copyright (C) 2001 VideoLAN
- * $Id: vout.c,v 1.4 2002/08/30 19:16:05 sam Exp $
- *
- * Authors: Gildas Bazin <gbazin@netcourrier.com>
- *
- * 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:
- *
- * This plugin will use YUV overlay if supported, using overlay will result in
- * the best video quality (hardware interpolation when rescaling the picture)
- * and the fastest display as it requires less processing.
- *
- * If YUV overlay is not supported this plugin will use RGB offscreen video
- * surfaces that will be blitted onto the primary surface (display) to
- * effectively display the pictures. This fallback method also enables us to
- * display video in window mode.
- *
- *****************************************************************************/
-#include <errno.h> /* ENOMEM */
-#include <stdlib.h> /* free() */
-#include <string.h> /* strerror() */
-
-#include <vlc/vlc.h>
-#include <vlc/intf.h>
-#include <vlc/vout.h>
-
-#include <ddraw.h>
-
-#include "netutils.h"
-
-#include "vout.h"
-
-/*****************************************************************************
- * DirectDraw GUIDs.
- * Defining them here allows us to get rid of the dxguid library during
- * the linking stage.
- *****************************************************************************/
-#include <initguid.h>
-DEFINE_GUID( IID_IDirectDraw2, 0xB3A6F3E0,0x2B43,0x11CF,0xA2,0xDE,0x00,0xAA,0x00,0xB9,0x33,0x56 );
-DEFINE_GUID( IID_IDirectDrawSurface2, 0x57805885,0x6eec,0x11cf,0x94,0x41,0xa8,0x23,0x03,0xc1,0x0e,0x27 );
-
-/*****************************************************************************
- * Local prototypes.
- *****************************************************************************/
-int E_(OpenVideo) ( vlc_object_t * );
-void E_(CloseVideo) ( vlc_object_t * );
-
-static int Init ( vout_thread_t * );
-static void End ( vout_thread_t * );
-static int Manage ( vout_thread_t * );
-static void Display ( vout_thread_t *, picture_t * );
-
-static int NewPictureVec ( vout_thread_t *, picture_t *, int );
-static void FreePictureVec ( vout_thread_t *, picture_t *, int );
-static int UpdatePictureStruct( vout_thread_t *, picture_t *, int );
-
-static int DirectXInitDDraw ( vout_thread_t *p_vout );
-static void DirectXCloseDDraw ( vout_thread_t *p_vout );
-static int DirectXCreateDisplay ( vout_thread_t *p_vout );
-static void DirectXCloseDisplay ( vout_thread_t *p_vout );
-static int DirectXCreateSurface ( vout_thread_t *p_vout,
- LPDIRECTDRAWSURFACE2 *, int, int, int );
-static void DirectXCloseSurface ( vout_thread_t *p_vout,
- LPDIRECTDRAWSURFACE2 );
-static int DirectXCreateClipper ( vout_thread_t *p_vout );
-static void DirectXGetDDrawCaps ( vout_thread_t *p_vout );
-static int DirectXGetSurfaceDesc ( picture_t *p_pic );
-
-/*****************************************************************************
- * OpenVideo: allocate DirectX video thread output method
- *****************************************************************************
- * This function allocates and initialize the DirectX vout method.
- *****************************************************************************/
-int E_(OpenVideo) ( vlc_object_t *p_this )
-{
- vout_thread_t * p_vout = (vout_thread_t *)p_this;
-
- /* Allocate structure */
- p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
- if( p_vout->p_sys == NULL )
- {
- msg_Err( p_vout, "out of memory" );
- return 1;
- }
-
- /* Initialisations */
- p_vout->pf_init = Init;
- p_vout->pf_end = End;
- p_vout->pf_manage = Manage;
- p_vout->pf_render = NULL;
- p_vout->pf_display = Display;
-
- p_vout->p_sys->p_ddobject = NULL;
- p_vout->p_sys->p_display = NULL;
- p_vout->p_sys->p_current_surface = NULL;
- p_vout->p_sys->p_clipper = NULL;
- p_vout->p_sys->hbrush = NULL;
- p_vout->p_sys->hwnd = NULL;
- p_vout->p_sys->i_changes = 0;
- p_vout->p_sys->b_caps_overlay_clipping = 0;
- SetRectEmpty( &p_vout->p_sys->rect_display );
- p_vout->p_sys->b_using_overlay = config_GetInt( p_vout, "overlay" );
- p_vout->p_sys->b_use_sysmem = config_GetInt( p_vout, "directx-use-sysmem");
- p_vout->p_sys->b_hw_yuv = config_GetInt( p_vout, "directx-hw-yuv" );
-
- p_vout->p_sys->b_cursor_hidden = 0;
- p_vout->p_sys->i_lastmoved = mdate();
-
- /* Set main window's size */
- p_vout->p_sys->i_window_width = p_vout->i_window_width;
- p_vout->p_sys->i_window_height = p_vout->i_window_height;
-
- /* Create the DirectXEventThread, this thread is created by us to isolate
- * the Win32 PeekMessage function calls. We want to do this because
- * Windows can stay blocked inside this call for a long time, and when
- * this happens it thus blocks vlc's video_output thread.
- * DirectXEventThread will take care of the creation of the video
- * window (because PeekMessage has to be called from the same thread which
- * created the window). */
- msg_Dbg( p_vout, "creating DirectXEventThread" );
- p_vout->p_sys->p_event =
- vlc_object_create( p_vout, sizeof(event_thread_t) );
- p_vout->p_sys->p_event->p_vout = p_vout;
- if( vlc_thread_create( p_vout->p_sys->p_event,
- "DirectX Events Thread", DirectXEventThread,
- VLC_THREAD_PRIORITY_LOW, 1 ) )
- {
- msg_Err( p_vout, "cannot create DirectXEventThread" );
- vlc_object_destroy( p_vout->p_sys->p_event );
- p_vout->p_sys->p_event = NULL;
- goto error;
- }
-
- if( p_vout->p_sys->p_event->b_error )
- {
- msg_Err( p_vout, "DirectXEventThread failed" );
- goto error;
- }
-
- vlc_object_attach( p_vout->p_sys->p_event, p_vout );
-
- msg_Dbg( p_vout, "DirectXEventThread running" );
-
- /* Initialise DirectDraw */
- if( DirectXInitDDraw( p_vout ) )
- {
- msg_Err( p_vout, "cannot initialize DirectDraw" );
- goto error;
- }
-
- /* Create the directx display */
- if( DirectXCreateDisplay( p_vout ) )
- {
- msg_Err( p_vout, "cannot initialize DirectDraw" );
- goto error;
- }
-
- return 0;
-
- error:
- E_(CloseVideo)( VLC_OBJECT(p_vout) );
- return 1;
-
-}
-
-/*****************************************************************************
- * Init: initialize DirectX video thread output method
- *****************************************************************************
- * This function create the directx surfaces needed by the output thread.
- * It is called at the beginning of the thread.
- *****************************************************************************/
-static int Init( vout_thread_t *p_vout )
-{
- int i_chroma_backup;
-
- /* Initialize the output structure.
- * Since DirectDraw can do rescaling for us, stick to the default
- * coordinates and aspect. */
- 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;
-
-#define MAX_DIRECTBUFFERS 1
- /* Right now we use only 1 directbuffer because we don't want the
- * video decoder to decode directly into direct buffers as they are
- * created into video memory and video memory is _really_ slow */
-
- /* Choose the chroma we will try first. */
- switch( p_vout->render.i_chroma )
- {
- case VLC_FOURCC('Y','U','Y','2'):
- case VLC_FOURCC('Y','U','N','V'):
- p_vout->output.i_chroma = VLC_FOURCC('Y','U','Y','2');
- break;
- case VLC_FOURCC('U','Y','V','Y'):
- case VLC_FOURCC('U','Y','N','V'):
- case VLC_FOURCC('Y','4','2','2'):
- p_vout->output.i_chroma = VLC_FOURCC('U','Y','V','Y');
- break;
- case VLC_FOURCC('Y','V','Y','U'):
- p_vout->output.i_chroma = VLC_FOURCC('Y','V','Y','U');
- break;
- default:
- p_vout->output.i_chroma = VLC_FOURCC('Y','V','1','2');
- break;
- }
-
- NewPictureVec( p_vout, p_vout->p_picture, MAX_DIRECTBUFFERS );
-
- i_chroma_backup = p_vout->output.i_chroma;
-
- if( !I_OUTPUTPICTURES )
- {
- /* hmmm, it didn't work! Let's try commonly supported chromas */
- p_vout->output.i_chroma = VLC_FOURCC('Y','V','1','2');
- NewPictureVec( p_vout, p_vout->p_picture, MAX_DIRECTBUFFERS );
- if( !I_OUTPUTPICTURES )
- {
- /* hmmm, it didn't work! Let's try commonly supported chromas */
- p_vout->output.i_chroma = VLC_FOURCC('Y','U','Y','2');
- NewPictureVec( p_vout, p_vout->p_picture, MAX_DIRECTBUFFERS );
- }
- }
-
- if( !I_OUTPUTPICTURES )
- {
- /* If it still didn't work then don't try to use an overlay */
- p_vout->output.i_chroma = i_chroma_backup;
- p_vout->p_sys->b_using_overlay = 0;
- NewPictureVec( p_vout, p_vout->p_picture, MAX_DIRECTBUFFERS );
- }
-
- /* Change the window title bar text */
- if( p_vout->p_sys->b_using_overlay )
- SetWindowText( p_vout->p_sys->hwnd,
- VOUT_TITLE " (hardware YUV overlay DirectX output)" );
- else if( p_vout->p_sys->b_hw_yuv )
- SetWindowText( p_vout->p_sys->hwnd,
- VOUT_TITLE " (hardware YUV DirectX output)" );
- else SetWindowText( p_vout->p_sys->hwnd,
- VOUT_TITLE " (software RGB DirectX output)" );
-
- return 0;
-}
-
-/*****************************************************************************
- * End: terminate Sys video thread output method
- *****************************************************************************
- * Terminate an output method created by Create.
- * It is called at the end of the thread.
- *****************************************************************************/
-static void End( vout_thread_t *p_vout )
-{
- FreePictureVec( p_vout, p_vout->p_picture, I_OUTPUTPICTURES );
- return;
-}
-
-/*****************************************************************************
- * CloseVideo: destroy Sys video thread output method
- *****************************************************************************
- * Terminate an output method created by Create
- *****************************************************************************/
-void E_(CloseVideo) ( vlc_object_t *p_this )
-{
- vout_thread_t * p_vout = (vout_thread_t *)p_this;
-
- msg_Dbg( p_vout, "CloseVideo" );
-
- DirectXCloseDisplay( p_vout );
- DirectXCloseDDraw( p_vout );
-
- if( p_vout->p_sys->p_event )
- {
- vlc_object_detach( p_vout->p_sys->p_event );
-
- /* Kill DirectXEventThread */
- p_vout->p_sys->p_event->b_die = 1;
-
- /* we need to be sure DirectXEventThread won't stay stuck in
- * GetMessage, so we send a fake message */
- if( p_vout->p_sys->hwnd )
- PostMessage( p_vout->p_sys->hwnd, WM_NULL, 0, 0);
-
- vlc_thread_join( p_vout->p_sys->p_event );
- vlc_object_destroy( p_vout->p_sys->p_event );
- }
-
- if( p_vout->p_sys )
- {
- free( p_vout->p_sys );
- p_vout->p_sys = NULL;
- }
-}
-
-/*****************************************************************************
- * Manage: handle Sys events
- *****************************************************************************
- * This function should be called regularly by the video output thread.
- * It returns a non null value if an error occured.
- *****************************************************************************/
-static int Manage( vout_thread_t *p_vout )
-{
- WINDOWPLACEMENT window_placement;
-
- /* We used to call the Win32 PeekMessage function here to read the window
- * messages. But since window can stay blocked into this function for a
- * long time (for example when you move your window on the screen), I
- * decided to isolate PeekMessage in another thread. */
-
- /*
- * Scale Change
- */
- if( p_vout->i_changes & VOUT_SCALE_CHANGE
- || p_vout->p_sys->i_changes & VOUT_SCALE_CHANGE)
- {
- msg_Dbg( p_vout, "Scale Change" );
- if( !p_vout->p_sys->b_using_overlay )
- InvalidateRect( p_vout->p_sys->hwnd, NULL, TRUE );
- else
- DirectXUpdateOverlay( p_vout );
- p_vout->i_changes &= ~VOUT_SCALE_CHANGE;
- p_vout->p_sys->i_changes &= ~VOUT_SCALE_CHANGE;
- }
-
- /*
- * Size Change
- */
- if( p_vout->i_changes & VOUT_SIZE_CHANGE
- || p_vout->p_sys->i_changes & VOUT_SIZE_CHANGE )
- {
- msg_Dbg( p_vout, "Size Change" );
- if( !p_vout->p_sys->b_using_overlay )
- InvalidateRect( p_vout->p_sys->hwnd, NULL, TRUE );
- else
- DirectXUpdateOverlay( p_vout );
- p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
- p_vout->p_sys->i_changes &= ~VOUT_SIZE_CHANGE;
- }
-
- /*
- * Fullscreen change
- */
- if( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE
- || p_vout->p_sys->i_changes & VOUT_FULLSCREEN_CHANGE )
- {
- p_vout->b_fullscreen = ! p_vout->b_fullscreen;
-
- /* We need to switch between Maximized and Normal sized window */
- window_placement.length = sizeof(WINDOWPLACEMENT);
- GetWindowPlacement( p_vout->p_sys->hwnd, &window_placement );
- if( p_vout->b_fullscreen )
- {
- /* Maximized window */
- window_placement.showCmd = SW_SHOWMAXIMIZED;
- /* Change window style, no borders and no title bar */
- SetWindowLong( p_vout->p_sys->hwnd, GWL_STYLE, 0 );
-
- }
- else
- {
- /* Normal window */
- window_placement.showCmd = SW_SHOWNORMAL;
- /* Change window style, borders and title bar */
- SetWindowLong( p_vout->p_sys->hwnd, GWL_STYLE,
- WS_OVERLAPPEDWINDOW | WS_SIZEBOX | WS_VISIBLE );
- }
-
- SetWindowPlacement( p_vout->p_sys->hwnd, &window_placement );
-
- p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
- p_vout->p_sys->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
- }
-
- /*
- * Pointer change
- */
- if( (!p_vout->p_sys->b_cursor_hidden) &&
- ( (mdate() - p_vout->p_sys->i_lastmoved) > 5000000 ) )
- {
- /* Hide the mouse automatically */
- p_vout->p_sys->b_cursor_hidden = 1;
- PostMessage( p_vout->p_sys->hwnd, WM_VLC_HIDE_MOUSE, 0, 0 );
- }
-
- /* Check if the event thread is still running */
- if( p_vout->p_sys->p_event->b_die )
- return 1; /* exit */
-
- return 0;
-}
-
-/*****************************************************************************
- * Display: displays previously rendered output
- *****************************************************************************
- * This function sends the currently rendered image to the display, wait until
- * it is displayed and switch the two rendering buffers, preparing next frame.
- *****************************************************************************/
-static void Display( vout_thread_t *p_vout, picture_t *p_pic )
-{
- HRESULT dxresult;
-
- if( (p_vout->p_sys->p_display == NULL) )
- {
- msg_Warn( p_vout, "no display!!" );
- return;
- }
-
- if( !p_vout->p_sys->b_using_overlay )
- {
- DDBLTFX ddbltfx;
-
- /* We ask for the "NOTEARING" option */
- memset( &ddbltfx, 0, sizeof(DDBLTFX) );
- ddbltfx.dwSize = sizeof(DDBLTFX);
- ddbltfx.dwDDFX = DDBLTFX_NOTEARING;
-
- /* Blit video surface to display */
- dxresult = IDirectDrawSurface2_Blt(p_vout->p_sys->p_display,
- &p_vout->p_sys->rect_dest_clipped,
- p_pic->p_sys->p_surface,
- &p_vout->p_sys->rect_src_clipped,
- DDBLT_ASYNC, &ddbltfx );
- if ( dxresult == DDERR_SURFACELOST )
- {
- /* Our surface can be lost so be sure
- * to check this and restore it if needed */
- IDirectDrawSurface2_Restore( p_vout->p_sys->p_display );
-
- /* Now that the surface has been restored try to display again */
- dxresult = IDirectDrawSurface2_Blt(p_vout->p_sys->p_display,
- &p_vout->p_sys->rect_dest_clipped,
- p_pic->p_sys->p_surface,
- &p_vout->p_sys->rect_src_clipped,
- DDBLT_ASYNC, &ddbltfx );
- }
-
- if( dxresult != DD_OK )
- {
- msg_Warn( p_vout, "could not Blit the surface" );
- return;
- }
-
- }
- else /* using overlay */
- {
-
- /* Flip the overlay buffers if we are using back buffers */
- if( p_pic->p_sys->p_front_surface == p_pic->p_sys->p_surface )
- return;
-
- dxresult = IDirectDrawSurface2_Flip( p_pic->p_sys->p_front_surface,
- NULL, DDFLIP_WAIT );
- if ( dxresult == DDERR_SURFACELOST )
- {
- /* Our surface can be lost so be sure
- * to check this and restore it if needed */
- IDirectDrawSurface2_Restore( p_vout->p_sys->p_display );
- IDirectDrawSurface2_Restore( p_pic->p_sys->p_front_surface );
-
- /* Now that the surface has been restored try to display again */
- dxresult = IDirectDrawSurface2_Flip( p_pic->p_sys->p_front_surface,
- NULL, DDFLIP_WAIT );
- DirectXUpdateOverlay( p_vout );
- }
-
- if( dxresult != DD_OK )
- msg_Warn( p_vout, "could not flip overlay surface" );
-
- if( !DirectXGetSurfaceDesc( p_pic ) )
- {
- /* AAARRGG */
- msg_Err( p_vout, "cannot get surface desc" );
- return;
- }
-
- if( !UpdatePictureStruct( p_vout, p_pic, p_vout->output.i_chroma ) )
- {
- /* AAARRGG */
- msg_Err( p_vout, "invalid pic chroma" );
- return;
- }
-
- /* set currently displayed pic */
- p_vout->p_sys->p_current_surface = p_pic->p_sys->p_front_surface;
- }
-
-}
-
-
-/* following functions are local */
-
-/*****************************************************************************
- * DirectXInitDDraw: Takes care of all the DirectDraw initialisations
- *****************************************************************************
- * This function initialise and allocate resources for DirectDraw.
- *****************************************************************************/
-static int DirectXInitDDraw( vout_thread_t *p_vout )
-{
- HRESULT dxresult;
- HRESULT (WINAPI *OurDirectDrawCreate)(GUID *,LPDIRECTDRAW *,IUnknown *);
- LPDIRECTDRAW p_ddobject;
-
- msg_Dbg( p_vout, "DirectXInitDDraw" );
-
- /* load direct draw DLL */
- p_vout->p_sys->hddraw_dll = LoadLibrary("DDRAW.DLL");
- if( p_vout->p_sys->hddraw_dll == NULL )
- {
- msg_Warn( p_vout, "DirectXInitDDraw failed loading ddraw.dll" );
- goto error;
- }
-
- OurDirectDrawCreate =
- (void *)GetProcAddress(p_vout->p_sys->hddraw_dll, "DirectDrawCreate");
- if ( OurDirectDrawCreate == NULL )
- {
- msg_Err( p_vout, "DirectXInitDDraw failed GetProcAddress" );
- goto error;
- }
-
- /* Initialize DirectDraw now */
- dxresult = OurDirectDrawCreate( NULL, &p_ddobject, NULL );
- if( dxresult != DD_OK )
- {
- msg_Err( p_vout, "DirectXInitDDraw cannot initialize DDraw" );
- goto error;
- }
-
- /* Get the IDirectDraw2 interface */
- dxresult = IDirectDraw_QueryInterface( p_ddobject, &IID_IDirectDraw2,
- (LPVOID *)&p_vout->p_sys->p_ddobject );
- /* Release the unused interface */
- IDirectDraw_Release( p_ddobject );
- if( dxresult != DD_OK )
- {
- msg_Err( p_vout, "cannot get IDirectDraw2 interface" );
- goto error;
- }
-
- /* Set DirectDraw Cooperative level, ie what control we want over Windows
- * display */
- dxresult = IDirectDraw2_SetCooperativeLevel( p_vout->p_sys->p_ddobject,
- p_vout->p_sys->hwnd, DDSCL_NORMAL );
- if( dxresult != DD_OK )
- {
- msg_Err( p_vout, "cannot set direct draw cooperative level" );
- goto error;
- }
-
- /* Probe the capabilities of the hardware */
- DirectXGetDDrawCaps( p_vout );
-
- msg_Dbg( p_vout, "End DirectXInitDDraw" );
- return 0;
-
- error:
- if( p_vout->p_sys->p_ddobject )
- IDirectDraw2_Release( p_vout->p_sys->p_ddobject );
- if( p_vout->p_sys->hddraw_dll )
- FreeLibrary( p_vout->p_sys->hddraw_dll );
- p_vout->p_sys->hddraw_dll = NULL;
- p_vout->p_sys->p_ddobject = NULL;
- return 1;
-}
-
-/*****************************************************************************
- * DirectXCreateDisplay: create the DirectDraw display.
- *****************************************************************************
- * Create and initialize display according to preferences specified in the vout
- * thread fields.
- *****************************************************************************/
-static int DirectXCreateDisplay( vout_thread_t *p_vout )
-{
- HRESULT dxresult;
- DDSURFACEDESC ddsd;
- LPDIRECTDRAWSURFACE p_display;
- DDPIXELFORMAT pixel_format;
-
- msg_Dbg( p_vout, "DirectXCreateDisplay" );
-
- /* Now get the primary surface. This surface is what you actually see
- * on your screen */
- memset( &ddsd, 0, sizeof( DDSURFACEDESC ));
- ddsd.dwSize = sizeof(DDSURFACEDESC);
- ddsd.dwFlags = DDSD_CAPS;
- ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;
-
- dxresult = IDirectDraw2_CreateSurface( p_vout->p_sys->p_ddobject,
- &ddsd,
- &p_display, NULL );
- if( dxresult != DD_OK )
- {
- msg_Err( p_vout, "cannot get direct draw primary surface" );
- return 1;
- }
-
- dxresult = IDirectDrawSurface_QueryInterface( p_display,
- &IID_IDirectDrawSurface2,
- (LPVOID *)&p_vout->p_sys->p_display );
- /* Release the old interface */
- IDirectDrawSurface_Release( p_display );
- if ( dxresult != DD_OK )
- {
- msg_Err( p_vout, "cannot get IDirectDrawSurface2 interface" );
- return 1;
- }
-
- /* The clipper will be used only in non-overlay mode */
- DirectXCreateClipper( p_vout );
-
-
-#if 1
- /* compute the colorkey pixel value from the RGB value we've got */
- memset( &pixel_format, 0, sizeof( DDPIXELFORMAT ));
- pixel_format.dwSize = sizeof( DDPIXELFORMAT );
- dxresult = IDirectDrawSurface2_GetPixelFormat( p_vout->p_sys->p_display,
- &pixel_format );
- if( dxresult != DD_OK )
- msg_Warn( p_vout, "DirectXUpdateOverlay GetPixelFormat failed" );
- p_vout->p_sys->i_colorkey = (DWORD)((( p_vout->p_sys->i_rgb_colorkey
- * pixel_format.dwRBitMask) / 255)
- & pixel_format.dwRBitMask);
-#endif
-
- return 0;
-}
-
-
-/*****************************************************************************
- * DirectXCreateClipper: Create a clipper that will be used when blitting the
- * RGB surface to the main display.
- *****************************************************************************
- * This clipper prevents us to modify by mistake anything on the screen
- * which doesn't belong to our window. For example when a part of our video
- * window is hidden by another window.
- *****************************************************************************/
-static int DirectXCreateClipper( vout_thread_t *p_vout )
-{
- HRESULT dxresult;
-
- msg_Dbg( p_vout, "DirectXCreateClipper" );
-
- /* Create the clipper */
- dxresult = IDirectDraw2_CreateClipper( p_vout->p_sys->p_ddobject, 0,
- &p_vout->p_sys->p_clipper, NULL );
- if( dxresult != DD_OK )
- {
- msg_Warn( p_vout, "DirectXCreateClipper cannot create clipper" );
- goto error;
- }
-
- /* associate the clipper to the window */
- dxresult = IDirectDrawClipper_SetHWnd(p_vout->p_sys->p_clipper, 0,
- p_vout->p_sys->hwnd);
- if( dxresult != DD_OK )
- {
- msg_Warn( p_vout,
- "DirectXCreateClipper cannot attach clipper to window" );
- goto error;
- }
-
- /* associate the clipper with the surface */
- dxresult = IDirectDrawSurface_SetClipper(p_vout->p_sys->p_display,
- p_vout->p_sys->p_clipper);
- if( dxresult != DD_OK )
- {
- msg_Warn( p_vout,
- "DirectXCreateClipper cannot attach clipper to surface" );
- goto error;
- }
-
- return 0;
-
- error:
- if( p_vout->p_sys->p_clipper )
- IDirectDrawClipper_Release( p_vout->p_sys->p_clipper );
- p_vout->p_sys->p_clipper = NULL;
- return 1;
-
-}
-
-/*****************************************************************************
- * DirectXCreateSurface: create an YUV overlay or RGB surface for the video.
- *****************************************************************************
- * The best method of display is with an YUV overlay because the YUV->RGB
- * conversion is done in hardware.
- * You can also create a plain RGB surface.
- * ( Maybe we could also try an RGB overlay surface, which could have hardware
- * scaling and which would also be faster in window mode because you don't
- * need to do any blitting to the main display...)
- *****************************************************************************/
-static int DirectXCreateSurface( vout_thread_t *p_vout,
- LPDIRECTDRAWSURFACE2 *pp_surface_final,
- int i_chroma, int b_overlay,
- int i_backbuffers )
-{
- HRESULT dxresult;
- LPDIRECTDRAWSURFACE p_surface;
- DDSURFACEDESC ddsd;
-
- /* Create the video surface */
- if( b_overlay )
- {
- /* Now try to create the YUV overlay surface.
- * This overlay will be displayed on top of the primary surface.
- * A color key is used to determine whether or not the overlay will be
- * displayed, ie the overlay will be displayed in place of the primary
- * surface wherever the primary surface will have this color.
- * The video window has been created with a background of this color so
- * the overlay will be only displayed on top of this window */
-
- memset( &ddsd, 0, sizeof( DDSURFACEDESC ));
- ddsd.dwSize = sizeof(DDSURFACEDESC);
- ddsd.ddpfPixelFormat.dwSize = sizeof(DDPIXELFORMAT);
- ddsd.ddpfPixelFormat.dwFlags = DDPF_FOURCC;
- ddsd.ddpfPixelFormat.dwFourCC = i_chroma;
- ddsd.dwFlags = DDSD_CAPS |
- DDSD_HEIGHT |
- DDSD_WIDTH |
- DDSD_PIXELFORMAT;
- ddsd.dwFlags |= (i_backbuffers ? DDSD_BACKBUFFERCOUNT : 0);
- ddsd.ddsCaps.dwCaps = DDSCAPS_OVERLAY |
- DDSCAPS_VIDEOMEMORY;
- ddsd.ddsCaps.dwCaps |= (i_backbuffers ? DDSCAPS_COMPLEX | DDSCAPS_FLIP
- : 0 );
- ddsd.dwHeight = p_vout->render.i_height;
- ddsd.dwWidth = p_vout->render.i_width;
- ddsd.dwBackBufferCount = i_backbuffers;
-
- dxresult = IDirectDraw2_CreateSurface( p_vout->p_sys->p_ddobject,
- &ddsd,
- &p_surface, NULL );
- if( dxresult != DD_OK )
- {
- *pp_surface_final = NULL;
- return 0;
- }
- }
-
- if( !b_overlay )
- {
- vlc_bool_t b_rgb_surface =
- ( i_chroma == VLC_FOURCC('R','G','B','2') )
- || ( i_chroma == VLC_FOURCC('R','V','1','5') )
- || ( i_chroma == VLC_FOURCC('R','V','1','6') )
- || ( i_chroma == VLC_FOURCC('R','V','2','4') )
- || ( i_chroma == VLC_FOURCC('R','V','3','2') );
-
- memset( &ddsd, 0, sizeof( DDSURFACEDESC ) );
- ddsd.dwSize = sizeof(DDSURFACEDESC);
- ddsd.ddpfPixelFormat.dwSize = sizeof(DDPIXELFORMAT);
- ddsd.dwFlags = DDSD_HEIGHT |
- DDSD_WIDTH |
- DDSD_CAPS;
- ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN;
- ddsd.dwHeight = p_vout->render.i_height;
- ddsd.dwWidth = p_vout->render.i_width;
-
- if( p_vout->p_sys->b_use_sysmem )
- ddsd.ddsCaps.dwCaps |= DDSCAPS_SYSTEMMEMORY;
- else
- ddsd.ddsCaps.dwCaps |= DDSCAPS_VIDEOMEMORY;
-
- if( !b_rgb_surface )
- {
- ddsd.dwFlags |= DDSD_PIXELFORMAT;
- ddsd.ddpfPixelFormat.dwFlags = DDPF_FOURCC;
- ddsd.ddpfPixelFormat.dwFourCC = i_chroma;
- }
-
- dxresult = IDirectDraw2_CreateSurface( p_vout->p_sys->p_ddobject,
- &ddsd,
- &p_surface, NULL );
- if( dxresult != DD_OK )
- {
- *pp_surface_final = NULL;
- return 0;
- }
- }
-
- /* Now that the surface is created, try to get a newer DirectX interface */
- dxresult = IDirectDrawSurface_QueryInterface( p_surface,
- &IID_IDirectDrawSurface2,
- (LPVOID *)pp_surface_final );
- IDirectDrawSurface_Release( p_surface ); /* Release the old interface */
- if ( dxresult != DD_OK )
- {
- msg_Err( p_vout, "cannot get IDirectDrawSurface2 interface" );
- *pp_surface_final = NULL;
- return 0;
- }
-
- return 1;
-}
-
-/*****************************************************************************
- * DirectXUpdateOverlay: Move or resize overlay surface on video display.
- *****************************************************************************
- * This function is used to move or resize an overlay surface on the screen.
- * Ususally the overlay is moved by the user and thus, by a move or resize
- * event (in Manage).
- *****************************************************************************/
-void DirectXUpdateOverlay( vout_thread_t *p_vout )
-{
- DDOVERLAYFX ddofx;
- DWORD dwFlags;
- HRESULT dxresult;
-
- if( p_vout->p_sys->p_current_surface == NULL ||
- !p_vout->p_sys->b_using_overlay )
- return;
-
- /* The new window dimensions should already have been computed by the
- * caller of this function */
-
- /* Position and show the overlay */
- memset(&ddofx, 0, sizeof(DDOVERLAYFX));
- ddofx.dwSize = sizeof(DDOVERLAYFX);
- ddofx.dckDestColorkey.dwColorSpaceLowValue = p_vout->p_sys->i_colorkey;
- ddofx.dckDestColorkey.dwColorSpaceHighValue = p_vout->p_sys->i_colorkey;
-
- dwFlags = DDOVER_SHOW;
- if( !p_vout->p_sys->b_caps_overlay_clipping )
- dwFlags |= DDOVER_KEYDESTOVERRIDE;
-
- dxresult = IDirectDrawSurface2_UpdateOverlay(
- p_vout->p_sys->p_current_surface,
- &p_vout->p_sys->rect_src_clipped,
- p_vout->p_sys->p_display,
- &p_vout->p_sys->rect_dest_clipped,
- dwFlags,
- &ddofx );
- if(dxresult != DD_OK)
- {
- msg_Warn( p_vout,
- "DirectXUpdateOverlay cannot move or resize overlay" );
- }
-
-}
-
-/*****************************************************************************
- * DirectXCloseDDraw: Release the DDraw object allocated by DirectXInitDDraw
- *****************************************************************************
- * This function returns all resources allocated by DirectXInitDDraw.
- *****************************************************************************/
-static void DirectXCloseDDraw( vout_thread_t *p_vout )
-{
- msg_Dbg( p_vout, "DirectXCloseDDraw" );
- if( p_vout->p_sys->p_ddobject != NULL )
- {
- IDirectDraw2_Release(p_vout->p_sys->p_ddobject);
- p_vout->p_sys->p_ddobject = NULL;
- }
-
- if( p_vout->p_sys->hddraw_dll != NULL )
- {
- FreeLibrary( p_vout->p_sys->hddraw_dll );
- p_vout->p_sys->hddraw_dll = NULL;
- }
-}
-
-/*****************************************************************************
- * DirectXCloseDisplay: close and reset the DirectX display device
- *****************************************************************************
- * This function returns all resources allocated by DirectXCreateDisplay.
- *****************************************************************************/
-static void DirectXCloseDisplay( vout_thread_t *p_vout )
-{
- msg_Dbg( p_vout, "DirectXCloseDisplay" );
-
- if( p_vout->p_sys->p_clipper != NULL )
- {
- msg_Dbg( p_vout, "DirectXCloseDisplay clipper" );
- IDirectDrawClipper_Release( p_vout->p_sys->p_clipper );
- p_vout->p_sys->p_clipper = NULL;
- }
-
- if( p_vout->p_sys->p_display != NULL )
- {
- msg_Dbg( p_vout, "DirectXCloseDisplay display" );
- IDirectDrawSurface2_Release( p_vout->p_sys->p_display );
- p_vout->p_sys->p_display = NULL;
- }
-}
-
-/*****************************************************************************
- * DirectXCloseSurface: close the YUV overlay or RGB surface.
- *****************************************************************************
- * This function returns all resources allocated for the surface.
- *****************************************************************************/
-static void DirectXCloseSurface( vout_thread_t *p_vout,
- LPDIRECTDRAWSURFACE2 p_surface )
-{
- msg_Dbg( p_vout, "DirectXCloseSurface" );
- if( p_surface != NULL )
- {
- IDirectDrawSurface2_Release( p_surface );
- }
-}
-
-/*****************************************************************************
- * NewPictureVec: allocate a vector of identical pictures
- *****************************************************************************
- * Returns 0 on success, -1 otherwise
- *****************************************************************************/
-static int NewPictureVec( vout_thread_t *p_vout, picture_t *p_pic,
- int i_num_pics )
-{
- int i;
- vlc_bool_t b_result_ok;
- LPDIRECTDRAWSURFACE2 p_surface;
-
- msg_Dbg( p_vout, "NewPictureVec" );
-
- I_OUTPUTPICTURES = 0;
-
- /* First we try to use an YUV overlay surface.
- * The overlay surface that we create won't be used to decode directly
- * into it because accessing video memory directly is way to slow (remember
- * that pictures are decoded macroblock per macroblock). Instead the video
- * will be decoded in picture buffers in system memory which will then be
- * memcpy() to the overlay surface. */
- if( p_vout->p_sys->b_using_overlay )
- {
- /* Triple buffering rocks! it doesn't have any processing overhead
- * (you don't have to wait for the vsync) and provides for a very nice
- * video quality (no tearing). */
-
- b_result_ok = DirectXCreateSurface( p_vout, &p_surface,
- p_vout->output.i_chroma,
- p_vout->p_sys->b_using_overlay,
- 2 /* number of backbuffers */ );
-
- if( !b_result_ok )
- /* Try to reduce the number of backbuffers */
- b_result_ok = DirectXCreateSurface( p_vout, &p_surface,
- p_vout->output.i_chroma,
- p_vout->p_sys->b_using_overlay,
- 0 /* number of backbuffers */);
-
- if( b_result_ok )
- {
- DDSCAPS dds_caps;
- picture_t front_pic;
- picture_sys_t front_pic_sys;
- front_pic.p_sys = &front_pic_sys;
-
- /* Allocate internal structure */
- p_pic[0].p_sys = malloc( sizeof( picture_sys_t ) );
- if( p_pic[0].p_sys == NULL )
- {
- DirectXCloseSurface( p_vout, p_surface );
- return -1;
- }
-
- /* set front buffer */
- p_pic[0].p_sys->p_front_surface = p_surface;
-
- /* Get the back buffer */
- memset( &dds_caps, 0, sizeof( DDSCAPS ) );
- dds_caps.dwCaps = DDSCAPS_BACKBUFFER;
- if( DD_OK != IDirectDrawSurface2_GetAttachedSurface(
- p_surface, &dds_caps,
- &p_pic[0].p_sys->p_surface ) )
- {
- msg_Warn( p_vout, "NewPictureVec could not get back buffer" );
- /* front buffer is the same as back buffer */
- p_pic[0].p_sys->p_surface = p_surface;
- }
-
-
- p_vout->p_sys->p_current_surface = front_pic.p_sys->p_surface =
- p_pic[0].p_sys->p_front_surface;
-
- /* reset the front buffer memory */
- if( DirectXGetSurfaceDesc( &front_pic ) &&
- UpdatePictureStruct( p_vout, &front_pic,
- p_vout->output.i_chroma ) )
- {
- int i,j;
- for( i = 0; i < front_pic.i_planes; i++ )
- for( j = 0; j < front_pic.p[i].i_lines; j++)
- memset( front_pic.p[i].p_pixels + j *
- front_pic.p[i].i_pitch, 127,
- front_pic.p[i].i_visible_pitch );
- }
-
- DirectXUpdateOverlay( p_vout );
- I_OUTPUTPICTURES = 1;
- msg_Dbg( p_vout, "DirectX YUV overlay created successfully" );
- }
- }
-
- /* As we can't have an overlay, we'll try to create a plain offscreen
- * surface. This surface will reside in video memory because there's a
- * better chance then that we'll be able to use some kind of hardware
- * acceleration like rescaling, blitting or YUV->RGB conversions.
- * We then only need to blit this surface onto the main display when we
- * want to display it */
- if( !p_vout->p_sys->b_using_overlay )
- {
-
- if( p_vout->p_sys->b_hw_yuv )
- b_result_ok = DirectXCreateSurface( p_vout, &p_surface,
- p_vout->output.i_chroma,
- p_vout->p_sys->b_using_overlay,
- 0 /* no back buffers */ );
-
- if( !p_vout->p_sys->b_hw_yuv || !b_result_ok )
- {
- /* Our last choice is to use a plain RGB surface */
- DDPIXELFORMAT ddpfPixelFormat;
-
- ddpfPixelFormat.dwSize = sizeof(DDPIXELFORMAT);
- IDirectDrawSurface2_GetPixelFormat( p_vout->p_sys->p_display,
- &ddpfPixelFormat );
-
- if( ddpfPixelFormat.dwFlags & DDPF_RGB )
- {
- switch( ddpfPixelFormat.dwRGBBitCount )
- {
- 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" );
- return 0;
- }
- p_vout->output.i_rmask = ddpfPixelFormat.dwRBitMask;
- p_vout->output.i_gmask = ddpfPixelFormat.dwGBitMask;
- p_vout->output.i_bmask = ddpfPixelFormat.dwBBitMask;
- }
-
- p_vout->p_sys->b_hw_yuv = 0;
-
- b_result_ok = DirectXCreateSurface( p_vout, &p_surface,
- p_vout->output.i_chroma,
- p_vout->p_sys->b_using_overlay,
- 0 /* no back buffers */ );
- }
-
- if( b_result_ok )
- {
- /* Allocate internal structure */
- p_pic[0].p_sys = malloc( sizeof( picture_sys_t ) );
- if( p_pic[0].p_sys == NULL )
- {
- DirectXCloseSurface( p_vout, p_surface );
- return -1;
- }
- p_pic[0].p_sys->p_surface = p_pic[0].p_sys->p_front_surface
- = p_surface;
-
- I_OUTPUTPICTURES = 1;
-
- msg_Dbg( p_vout, "DirectX plain surface created successfully" );
- }
- }
-
-
- /* Now that we've got all our direct-buffers, we can finish filling in the
- * picture_t structures */
- for( i = 0; i < I_OUTPUTPICTURES; i++ )
- {
- p_pic[i].i_status = DESTROYED_PICTURE;
- p_pic[i].i_type = DIRECT_PICTURE;
- PP_OUTPUTPICTURE[i] = &p_pic[i];
-
- if( !DirectXGetSurfaceDesc( &p_pic[i] ) )
- {
- /* AAARRGG */
- FreePictureVec( p_vout, p_pic, I_OUTPUTPICTURES );
- I_OUTPUTPICTURES = 0;
- return -1;
- }
-
- if( !UpdatePictureStruct(p_vout, &p_pic[i], p_vout->output.i_chroma) )
- {
-
- /* Unknown chroma, tell the guy to get lost */
- msg_Err( p_vout, "never heard of chroma 0x%.8x (%4.4s)",
- p_vout->output.i_chroma, (char*)&p_vout->output.i_chroma );
- FreePictureVec( p_vout, p_pic, I_OUTPUTPICTURES );
- I_OUTPUTPICTURES = 0;
- return -1;
- }
- }
-
- msg_Dbg( p_vout, "End NewPictureVec");
- return 0;
-}
-
-/*****************************************************************************
- * FreePicture: destroy a picture vector allocated with NewPictureVec
- *****************************************************************************
- *
- *****************************************************************************/
-static void FreePictureVec( vout_thread_t *p_vout, picture_t *p_pic,
- int i_num_pics )
-{
- int i;
-
- for( i = 0; i < i_num_pics; i++ )
- {
- DirectXCloseSurface( p_vout, p_pic[i].p_sys->p_front_surface );
-
- for( i = 0; i < i_num_pics; i++ )
- {
- free( p_pic[i].p_sys );
- }
- }
-}
-
-/*****************************************************************************
- * UpdatePictureStruct: updates the internal data in the picture_t structure
- *****************************************************************************
- * This will setup stuff for use by the video_output thread
- *****************************************************************************/
-static int UpdatePictureStruct( vout_thread_t *p_vout, picture_t *p_pic,
- int i_chroma )
-{
-
- switch( p_vout->output.i_chroma )
- {
- case VLC_FOURCC('R','G','B','2'):
- case VLC_FOURCC('R','V','1','5'):
- case VLC_FOURCC('R','V','1','6'):
- case VLC_FOURCC('R','V','2','4'):
- case VLC_FOURCC('R','V','3','2'):
- p_pic->p->p_pixels = p_pic->p_sys->ddsd.lpSurface;
- p_pic->p->i_lines = p_vout->output.i_height;
- p_pic->p->i_pitch = p_pic->p_sys->ddsd.lPitch;
- switch( p_vout->output.i_chroma )
- {
- case VLC_FOURCC('R','G','B','2'):
- p_pic->p->i_pixel_pitch = 1;
- break;
- case VLC_FOURCC('R','V','1','5'):
- case VLC_FOURCC('R','V','1','6'):
- p_pic->p->i_pixel_pitch = 2;
- break;
- case VLC_FOURCC('R','V','2','4'):
- case VLC_FOURCC('R','V','3','2'):
- p_pic->p->i_pixel_pitch = 4;
- break;
- default:
- return -1;
- }
- p_pic->p->i_visible_pitch = p_vout->output.i_width *
- p_pic->p->i_pixel_pitch;
- p_pic->i_planes = 1;
- break;
-
- case VLC_FOURCC('Y','V','1','2'):
-
- p_pic->Y_PIXELS = p_pic->p_sys->ddsd.lpSurface;
- p_pic->p[Y_PLANE].i_lines = p_vout->output.i_height;
- p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->ddsd.lPitch;
- p_pic->p[Y_PLANE].i_pixel_pitch = 1;
- p_pic->p[Y_PLANE].i_visible_pitch = p_vout->output.i_width *
- p_pic->p[Y_PLANE].i_pixel_pitch;
-
- p_pic->V_PIXELS = p_pic->Y_PIXELS
- + p_pic->p[Y_PLANE].i_lines * p_pic->p[Y_PLANE].i_pitch;
- p_pic->p[V_PLANE].i_lines = p_vout->output.i_height / 2;
- p_pic->p[V_PLANE].i_pitch = p_pic->p[Y_PLANE].i_pitch / 2;
- p_pic->p[V_PLANE].i_pixel_pitch = 1;
- p_pic->p[V_PLANE].i_visible_pitch = p_vout->output.i_width *
- p_pic->p[V_PLANE].i_pixel_pitch;
-
- p_pic->U_PIXELS = p_pic->V_PIXELS
- + p_pic->p[V_PLANE].i_lines * p_pic->p[V_PLANE].i_pitch;
- p_pic->p[U_PLANE].i_lines = p_vout->output.i_height / 2;
- p_pic->p[U_PLANE].i_pitch = p_pic->p[Y_PLANE].i_pitch / 2;
- p_pic->p[U_PLANE].i_pixel_pitch = 1;
- p_pic->p[U_PLANE].i_visible_pitch = p_vout->output.i_width *
- p_pic->p[U_PLANE].i_pixel_pitch;
-
- p_pic->i_planes = 3;
- break;
-
- case VLC_FOURCC('I','Y','U','V'):
-
- p_pic->Y_PIXELS = p_pic->p_sys->ddsd.lpSurface;
- p_pic->p[Y_PLANE].i_lines = p_vout->output.i_height;
- p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->ddsd.lPitch;
- p_pic->p[Y_PLANE].i_pixel_pitch = 1;
- p_pic->p[Y_PLANE].i_visible_pitch = p_vout->output.i_width *
- p_pic->p[Y_PLANE].i_pixel_pitch;
-
- p_pic->U_PIXELS = p_pic->Y_PIXELS
- + p_pic->p[Y_PLANE].i_lines * p_pic->p[Y_PLANE].i_pitch;
- p_pic->p[U_PLANE].i_lines = p_vout->output.i_height / 2;
- p_pic->p[U_PLANE].i_pitch = p_pic->p[Y_PLANE].i_pitch / 2;
- p_pic->p[U_PLANE].i_pixel_pitch = 1;
- p_pic->p[U_PLANE].i_visible_pitch = p_vout->output.i_width *
- p_pic->p[U_PLANE].i_pixel_pitch;
-
- p_pic->V_PIXELS = p_pic->U_PIXELS
- + p_pic->p[U_PLANE].i_lines * p_pic->p[U_PLANE].i_pitch;
- p_pic->p[V_PLANE].i_lines = p_vout->output.i_height / 2;
- p_pic->p[V_PLANE].i_pitch = p_pic->p[Y_PLANE].i_pitch / 2;
- p_pic->p[V_PLANE].i_pixel_pitch = 1;
- p_pic->p[V_PLANE].i_visible_pitch = p_vout->output.i_width *
- p_pic->p[V_PLANE].i_pixel_pitch;
-
- p_pic->i_planes = 3;
- break;
-
- case VLC_FOURCC('Y','U','Y','2'):
-
- p_pic->p->p_pixels = p_pic->p_sys->ddsd.lpSurface;
- p_pic->p->i_lines = p_vout->output.i_height;
- p_pic->p->i_pitch = p_pic->p_sys->ddsd.lPitch;
- p_pic->p->i_pixel_pitch = 2;
- p_pic->p->i_visible_pitch = p_vout->output.i_width *
- p_pic->p->i_pixel_pitch;
-
- p_pic->i_planes = 1;
- break;
-
- default:
- /* Not supported */
- return 0;
-
- }
-
- return 1;
-}
-
-/*****************************************************************************
- * DirectXGetDDrawCaps: Probe the capabilities of the hardware
- *****************************************************************************
- * It is nice to know which features are supported by the hardware so we can
- * find ways to optimize our rendering.
- *****************************************************************************/
-static void DirectXGetDDrawCaps( vout_thread_t *p_vout )
-{
- DDCAPS ddcaps;
- HRESULT dxresult;
-
- /* This is just an indication of whether or not we'll support overlay,
- * but with this test we don't know if we support YUV overlay */
- memset( &ddcaps, 0, sizeof( DDCAPS ));
- ddcaps.dwSize = sizeof(DDCAPS);
- dxresult = IDirectDraw2_GetCaps( p_vout->p_sys->p_ddobject,
- &ddcaps, NULL );
- if(dxresult != DD_OK )
- {
- msg_Warn( p_vout, "cannot get caps" );
- }
- else
- {
- BOOL bHasOverlay, bHasOverlayFourCC, bCanClipOverlay,
- bHasColorKey, bCanStretch;
-
- /* Determine if the hardware supports overlay surfaces */
- bHasOverlay = ((ddcaps.dwCaps & DDCAPS_OVERLAY) ==
- DDCAPS_OVERLAY) ? TRUE : FALSE;
- /* Determine if the hardware supports overlay surfaces */
- bHasOverlayFourCC = ((ddcaps.dwCaps & DDCAPS_OVERLAYFOURCC) ==
- DDCAPS_OVERLAYFOURCC) ? TRUE : FALSE;
- /* Determine if the hardware supports overlay surfaces */
- bCanClipOverlay = ((ddcaps.dwCaps & DDCAPS_OVERLAYCANTCLIP) ==
- 0 ) ? TRUE : FALSE;
- /* Determine if the hardware supports colorkeying */
- bHasColorKey = ((ddcaps.dwCaps & DDCAPS_COLORKEY) ==
- DDCAPS_COLORKEY) ? TRUE : FALSE;
- /* Determine if the hardware supports scaling of the overlay surface */
- bCanStretch = ((ddcaps.dwCaps & DDCAPS_OVERLAYSTRETCH) ==
- DDCAPS_OVERLAYSTRETCH) ? TRUE : FALSE;
- msg_Dbg( p_vout, "DirectDraw Capabilities: overlay=%i yuvoverlay=%i "
- "can_clip_overlay=%i colorkey=%i stretch=%i",
- bHasOverlay, bHasOverlayFourCC, bCanClipOverlay,
- bHasColorKey, bCanStretch );
-
- /* Overlay clipping support is interesting for us as it means we can
- * get rid of the colorkey alltogether */
- p_vout->p_sys->b_caps_overlay_clipping = bCanClipOverlay;
-
- }
-}
-
-/*****************************************************************************
- * DirectXGetSurfaceDesc: Get some more information about the surface
- *****************************************************************************
- * This function get and stores the surface descriptor which among things
- * has the pointer to the picture data.
- *****************************************************************************/
-static int DirectXGetSurfaceDesc( picture_t *p_pic )
-{
- HRESULT dxresult;
-
- /* Lock the surface to get a valid pointer to the picture buffer */
- memset( &p_pic->p_sys->ddsd, 0, sizeof( DDSURFACEDESC ));
- p_pic->p_sys->ddsd.dwSize = sizeof(DDSURFACEDESC);
- dxresult = IDirectDrawSurface2_Lock( p_pic->p_sys->p_surface,
- NULL, &p_pic->p_sys->ddsd,
- DDLOCK_NOSYSLOCK | DDLOCK_WAIT,
- NULL );
- if ( dxresult == DDERR_SURFACELOST )
- {
- /* Your surface can be lost so be sure
- * to check this and restore it if needed */
- dxresult = IDirectDrawSurface2_Restore( p_pic->p_sys->p_surface );
- dxresult = IDirectDrawSurface2_Lock( p_pic->p_sys->p_surface, NULL,
- &p_pic->p_sys->ddsd,
- DDLOCK_NOSYSLOCK | DDLOCK_WAIT,
- NULL);
- }
- if( dxresult != DD_OK )
- {
-//X msg_Err( p_vout, "DirectXGetSurfaceDesc cannot lock surface" );
- return 0;
- }
-
- /* Unlock the Surface */
- dxresult = IDirectDrawSurface2_Unlock( p_pic->p_sys->p_surface, NULL );
-
- return 1;
-}
projects / vlc / blobdiff