/***************************************************************************** * vout_sdl.c: SDL video output display method ***************************************************************************** * Copyright (C) 1998-2001 VideoLAN * $Id: vout_sdl.c,v 1.70 2001/12/16 16:18:36 sam Exp $ * * Authors: Samuel Hocevar <sam@zoy.org> * Pierre Baillet <oct@zoy.org> * Arnaud de Bossoreille de Ribou <bozo@via.ecp.fr> * * 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. *****************************************************************************/ #define MODULE_NAME sdl #include "modules_inner.h" /***************************************************************************** * Preamble *****************************************************************************/ #include "defs.h" #include <errno.h> /* ENOMEM */ #include <stdlib.h> /* free() */ #include <string.h> /* strerror() */ #include <sys/types.h> #ifndef WIN32 # include <netinet/in.h> /* BSD: struct in_addr */ #endif #include SDL_INCLUDE_FILE #include "common.h" #include "intf_msg.h" #include "threads.h" #include "mtime.h" #include "tests.h" #include "video.h" #include "video_output.h" #include "interface.h" #include "modules.h" #include "modules_export.h" #define SDL_MAX_DIRECTBUFFERS 5 #define SDL_DEFAULT_BPP 16 /***************************************************************************** * vout_sys_t: video output SDL method descriptor ***************************************************************************** * This structure is part of the video output thread descriptor. * It describes the SDL specific properties of an output thread. *****************************************************************************/ typedef struct vout_sys_s { SDL_Surface * p_display; /* display device */ int i_width; int i_height; boolean_t b_cursor; boolean_t b_cursor_autohidden; mtime_t i_lastmoved; } vout_sys_t; /***************************************************************************** * picture_sys_t: direct buffer method descriptor ***************************************************************************** * This structure is part of the picture descriptor, it describes the * SDL specific properties of a direct buffer. *****************************************************************************/ typedef struct picture_sys_s { SDL_Overlay *p_overlay; } picture_sys_t; /***************************************************************************** * Local prototypes. *****************************************************************************/ static int vout_Probe ( probedata_t *p_data ); static int vout_Create ( struct vout_thread_s * ); static int vout_Init ( struct vout_thread_s * ); static void vout_End ( struct vout_thread_s * ); static void vout_Destroy ( struct vout_thread_s * ); static int vout_Manage ( struct vout_thread_s * ); static void vout_Display ( struct vout_thread_s *, struct picture_s * ); static int SDLOpenDisplay ( vout_thread_t *p_vout ); static void SDLCloseDisplay ( vout_thread_t *p_vout ); static int SDLNewPicture ( vout_thread_t *p_vout, picture_t *p_pic ); /***************************************************************************** * 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->pf_probe = vout_Probe; 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_setpalette = NULL; } /***************************************************************************** * vout_Probe: probe the video driver and return a score ***************************************************************************** * This function tries to initialize SDL and returns a score to the * plugin manager so that it can select the best plugin. *****************************************************************************/ static int vout_Probe( probedata_t *p_data ) { if( TestMethod( VOUT_METHOD_VAR, "sdl" ) ) { return( 999 ); } return( 100 ); } /***************************************************************************** * vout_Create: allocate SDL video thread output method ***************************************************************************** * This function allocate and initialize a SDL vout method. It uses some of the * vout properties to choose the correct mode, and change them according to the * mode actually used. *****************************************************************************/ static int vout_Create( vout_thread_t *p_vout ) { /* Allocate structure */ p_vout->p_sys = malloc( sizeof( vout_sys_t ) ); if( p_vout->p_sys == NULL ) { intf_ErrMsg( "vout error: can't create p_sys (%s)", strerror(ENOMEM) ); return( 1 ); } /* Initialize library */ if( SDL_Init( SDL_INIT_VIDEO #ifndef WIN32 /* Win32 SDL implementation doesn't support SDL_INIT_EVENTTHREAD yet*/ | SDL_INIT_EVENTTHREAD #endif #ifdef DEBUG /* In debug mode you may want vlc to dump a core instead of staying * stuck */ | SDL_INIT_NOPARACHUTE #endif ) < 0 ) { intf_ErrMsg( "vout error: can't initialize SDL (%s)", SDL_GetError() ); free( p_vout->p_sys ); return( 1 ); } p_vout->p_sys->b_cursor = 1; /* TODO should be done with a main_GetInt.. */ p_vout->p_sys->b_cursor_autohidden = 0; p_vout->p_sys->i_lastmoved = mdate(); 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; } if( p_vout->p_sys->i_width <= 400 && p_vout->p_sys->i_height <= 300 ) { p_vout->p_sys->i_width *= 2; p_vout->p_sys->i_height *= 2; } if( SDLOpenDisplay( p_vout ) ) { intf_ErrMsg( "vout error: can't set up SDL (%s)", SDL_GetError() ); free( p_vout->p_sys ); return( 1 ); } return( 0 ); } /***************************************************************************** * vout_Init: initialize SDL video thread output method ***************************************************************************** * This function initialize the SDL display device. *****************************************************************************/ static int vout_Init( vout_thread_t *p_vout ) { int i_index; picture_t *p_pic; I_OUTPUTPICTURES = 0; /* Initialize the output structure */ switch( p_vout->render.i_chroma ) { case YUV_420_PICTURE: p_vout->output.i_chroma = p_vout->render.i_chroma; 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; break; default: return( 0 ); } /* Try to initialize SDL_MAX_DIRECTBUFFERS direct buffers */ while( I_OUTPUTPICTURES < SDL_MAX_DIRECTBUFFERS ) { 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; } } /* Allocate the picture */ if( SDLNewPicture( p_vout, p_pic ) ) { break; } p_pic->i_status = DESTROYED_PICTURE; p_pic->i_type = DIRECT_PICTURE; p_pic->i_left_margin = p_pic->i_right_margin = p_pic->i_top_margin = p_pic->i_bottom_margin = 0; PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic; I_OUTPUTPICTURES++; } return( 0 ); } /***************************************************************************** * vout_End: terminate Sys video thread output method ***************************************************************************** * Terminate an output method created by vout_SDLCreate *****************************************************************************/ static void vout_End( vout_thread_t *p_vout ) { int i_index; /* Free the output buffers we allocated */ for( i_index = I_OUTPUTPICTURES ; i_index ; ) { i_index--; SDL_UnlockYUVOverlay( PP_OUTPUTPICTURE[ i_index ]->p_sys->p_overlay ); SDL_FreeYUVOverlay( PP_OUTPUTPICTURE[ i_index ]->p_sys->p_overlay ); free( PP_OUTPUTPICTURE[ i_index ]->p_sys ); } } /***************************************************************************** * vout_Destroy: destroy Sys video thread output method ***************************************************************************** * Terminate an output method created by vout_SDLCreate *****************************************************************************/ static void vout_Destroy( vout_thread_t *p_vout ) { SDLCloseDisplay( p_vout ); SDL_QuitSubSystem( SDL_INIT_VIDEO ); free( p_vout->p_sys ); } /***************************************************************************** * vout_Manage: handle Sys events ***************************************************************************** * This function should be called regularly by video output thread. It returns * a non null value if an error occured. *****************************************************************************/ static int vout_Manage( vout_thread_t *p_vout ) { SDL_Event event; /* SDL event */ /* Process events */ while( SDL_PollEvent(&event) ) { switch( event.type ) { case SDL_VIDEORESIZE: /* Resizing of window */ p_vout->p_sys->i_width = event.resize.w; p_vout->p_sys->i_height = event.resize.h; SDLCloseDisplay( p_vout ); SDLOpenDisplay( p_vout ); break; case SDL_MOUSEMOTION: if( p_vout->p_sys->b_cursor && (abs(event.motion.xrel) > 2 || abs(event.motion.yrel) > 2) ) { if( p_vout->p_sys->b_cursor_autohidden ) { p_vout->p_sys->b_cursor_autohidden = 0; SDL_ShowCursor( 1 ); } else { p_vout->p_sys->i_lastmoved = mdate(); } } break; case SDL_MOUSEBUTTONUP: switch( event.button.button ) { case SDL_BUTTON_RIGHT: p_main->p_intf->b_menu_change = 1; break; } break; case SDL_MOUSEBUTTONDOWN: switch( event.button.button ) { case SDL_BUTTON_LEFT: /* Handle clicks */ break; } break; case SDL_QUIT: p_main->p_intf->b_die = 1; break; case SDL_KEYDOWN: /* if a key is pressed */ switch( event.key.keysym.sym ) { case SDLK_q: /* quit */ case SDLK_ESCAPE: p_main->p_intf->b_die = 1; break; case SDLK_f: /* switch to fullscreen */ p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE; break; case SDLK_c: /* toggle grayscale */ p_vout->b_grayscale = ! p_vout->b_grayscale; p_vout->i_changes |= VOUT_GRAYSCALE_CHANGE; break; case SDLK_i: /* toggle info */ p_vout->b_info = ! p_vout->b_info; p_vout->i_changes |= VOUT_INFO_CHANGE; break; case SDLK_s: /* toggle scaling */ p_vout->b_scale = ! p_vout->b_scale; p_vout->i_changes |= VOUT_SCALE_CHANGE; break; case SDLK_SPACE: /* toggle interface */ p_vout->b_interface = ! p_vout->b_interface; p_vout->i_changes |= VOUT_INTF_CHANGE; break; case SDLK_MENU: p_main->p_intf->b_menu_change = 1; break; case SDLK_F10: network_ChannelJoin( 0 ); break; case SDLK_F1: network_ChannelJoin( 1 ); break; case SDLK_F2: network_ChannelJoin( 2 ); break; case SDLK_F3: network_ChannelJoin( 3 ); break; case SDLK_F4: network_ChannelJoin( 4 ); break; case SDLK_F5: network_ChannelJoin( 5 ); break; case SDLK_F6: network_ChannelJoin( 6 ); break; case SDLK_F7: network_ChannelJoin( 7 ); break; case SDLK_F8: network_ChannelJoin( 8 ); break; case SDLK_F9: network_ChannelJoin( 9 ); break; default: intf_DbgMsg( "unhandled key %i", event.key.keysym.sym ); break; } break; default: break; } } /* Fullscreen change */ if( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE ) { p_vout->b_fullscreen = ! p_vout->b_fullscreen; SDL_WM_ToggleFullScreen(p_vout->p_sys->p_display); p_vout->p_sys->b_cursor_autohidden = 0; SDL_ShowCursor( p_vout->p_sys->b_cursor && ! p_vout->p_sys->b_cursor_autohidden ); p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE; } /* Pointer change */ if( ! p_vout->p_sys->b_cursor_autohidden && ( mdate() - p_vout->p_sys->i_lastmoved > 2000000 ) ) { /* Hide the mouse automatically */ p_vout->p_sys->b_cursor_autohidden = 1; SDL_ShowCursor( 0 ); } return( 0 ); } /***************************************************************************** * vout_Display: displays previously rendered output ***************************************************************************** * This function sends the currently rendered image to the display. *****************************************************************************/ static void vout_Display( vout_thread_t *p_vout, picture_t *p_pic ) { int x, y, w, h; SDL_Rect disp; vout_PlacePicture( p_vout, p_vout->p_sys->i_width, p_vout->p_sys->i_height, &x, &y, &w, &h ); disp.x = x; disp.y = y; disp.w = w; disp.h = h; SDL_UnlockYUVOverlay( p_pic->p_sys->p_overlay); SDL_DisplayYUVOverlay( p_pic->p_sys->p_overlay , &disp ); SDL_LockYUVOverlay( p_pic->p_sys->p_overlay); } /* following functions are local */ /***************************************************************************** * SDLOpenDisplay: open and initialize SDL device ***************************************************************************** * Open and initialize display according to preferences specified in the vout * thread fields. *****************************************************************************/ static int SDLOpenDisplay( vout_thread_t *p_vout ) { Uint32 i_flags; int i_bpp; /* Initialize flags and cursor */ i_flags = SDL_ANYFORMAT | SDL_HWPALETTE | SDL_HWSURFACE; i_flags |= p_vout->b_fullscreen ? SDL_FULLSCREEN : SDL_RESIZABLE; i_bpp = SDL_VideoModeOK( p_vout->p_sys->i_width, p_vout->p_sys->i_height, SDL_DEFAULT_BPP, i_flags ); if( i_bpp == 0 ) { intf_ErrMsg( "vout error: no video mode available" ); return( 1 ); } p_vout->p_sys->p_display = SDL_SetVideoMode( p_vout->p_sys->i_width, p_vout->p_sys->i_height, i_bpp, i_flags ); if( p_vout->p_sys->p_display == NULL ) { intf_ErrMsg( "vout error: cannot set video mode" ); return( 1 ); } SDL_LockSurface( p_vout->p_sys->p_display ); SDL_WM_SetCaption( VOUT_TITLE " (SDL output)", VOUT_TITLE " (SDL output)" ); SDL_EventState( SDL_KEYUP, SDL_IGNORE ); /* ignore keys up */ return( 0 ); } /***************************************************************************** * SDLCloseDisplay: close and reset SDL device ***************************************************************************** * This function returns all resources allocated by SDLOpenDisplay and restore * the original state of the device. *****************************************************************************/ static void SDLCloseDisplay( vout_thread_t *p_vout ) { SDL_UnlockSurface ( p_vout->p_sys->p_display ); SDL_FreeSurface( p_vout->p_sys->p_display ); } /***************************************************************************** * SDLNewPicture: allocate a picture ***************************************************************************** * Returns 0 on success, -1 otherwise *****************************************************************************/ static int SDLNewPicture( vout_thread_t *p_vout, picture_t *p_pic ) { int i_width = p_vout->output.i_width; int i_height = p_vout->output.i_height; switch( p_vout->output.i_chroma ) { case YUV_420_PICTURE: /* We know this chroma, allocate a buffer which will be used * directly by the decoder */ p_pic->p_sys = malloc( sizeof( picture_sys_t ) ); if( p_pic->p_sys == NULL ) { return -1; } p_pic->p_sys->p_overlay = SDL_CreateYUVOverlay( i_width, i_height, SDL_YV12_OVERLAY, p_vout->p_sys->p_display ); if( p_pic->p_sys->p_overlay == NULL ) { free( p_pic->p_sys ); return -1; } SDL_LockYUVOverlay( p_pic->p_sys->p_overlay ); /* Precalculate some values */ p_pic->i_size = i_width * i_height; p_pic->i_chroma_width = i_width / 2; p_pic->i_chroma_size = i_height * ( i_width / 2 ); /* FIXME: try to get the right i_bytes value from p_overlay */ p_pic->planes[ Y_PLANE ].p_data = p_pic->p_sys->p_overlay->pixels[ 0 ]; p_pic->planes[ Y_PLANE ].i_bytes = p_pic->i_size * sizeof( u8 ); p_pic->planes[ Y_PLANE ].i_line_bytes = i_width * sizeof( u8 ); p_pic->planes[ U_PLANE ].p_data = p_pic->p_sys->p_overlay->pixels[ 2 ]; p_pic->planes[ U_PLANE ].i_bytes = p_pic->i_size * sizeof( u8 ) / 4; p_pic->planes[ U_PLANE ].i_line_bytes = p_pic->i_chroma_width * sizeof( u8 ); p_pic->planes[ V_PLANE ].p_data = p_pic->p_sys->p_overlay->pixels[ 1 ]; p_pic->planes[ V_PLANE ].i_bytes = p_pic->i_size * sizeof( u8 ) / 4; p_pic->planes[ V_PLANE ].i_line_bytes = p_pic->i_chroma_width * sizeof( u8 ); p_pic->i_planes = 3; return 0; default: /* Unknown chroma, tell the guy to get lost */ p_pic->i_planes = 0; return 0; } }