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sdl.c
资源名称：vlc-1.0.5.zip　[点击查看]
上传用户：kjfoods
上传日期：2020-07-06
资源大小：29949k
文件大小：37k
源码类别：

midi

开发平台：

Unix_Linux

sdl.c：源码内容
  1. /*****************************************************************************
  2.  * sdl.c: SDL video output display method
  3.  *****************************************************************************
  4.  * Copyright (C) 1998-2001 the VideoLAN team
  5.  * $Id: ac19b285905b9388cf81d8177d4b978912e1bfe7 $
  6.  *
  7.  * Authors: Samuel Hocevar <sam@zoy.org>
  8.  *          Pierre Baillet <oct@zoy.org>
  9.  *          Arnaud de Bossoreille de Ribou <bozo@via.ecp.fr>
  10.  *
  11.  * This program is free software; you can redistribute it and/or modify
  12.  * it under the terms of the GNU General Public License as published by
  13.  * the Free Software Foundation; either version 2 of the License, or
  14.  * (at your option) any later version.
  15.  *
  16.  * This program is distributed in the hope that it will be useful,
  17.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19.  * GNU General Public License for more details.
  20.  *
  21.  * You should have received a copy of the GNU General Public License
  22.  * along with this program; if not, write to the Free Software
  23.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  24.  *****************************************************************************/
  26. /*****************************************************************************
  27.  * Preamble
  28.  *****************************************************************************/
  29. #include <errno.h>                                                 /* ENOMEM */
  31. #ifdef HAVE_CONFIG_H
  32. # include "config.h"
  33. #endif
  35. #include <vlc_common.h>
  36. #include <vlc_plugin.h>
  37. #include <vlc_interface.h>
  38. #include <vlc_playlist.h>
  39. #include <vlc_vout.h>
  40. #include <vlc_keys.h>
  41. //#include <vlc_aout.h>
  43. #include <sys/types.h>
  44. #ifndef WIN32
  45. #   include <netinet/in.h>                            /* BSD: struct in_addr */
  46. #endif
  48. #include SDL_INCLUDE_FILE
  50. /* SDL is not able to crop overlays - so use only 1 direct buffer */
  51. #define SDL_MAX_DIRECTBUFFERS 1
  52. #define SDL_DEFAULT_BPP 16
  54. /*****************************************************************************
  55.  * vout_sys_t: video output SDL method descriptor
  56.  *****************************************************************************
  57.  * This structure is part of the video output thread descriptor.
  58.  * It describes the SDL specific properties of an output thread.
  59.  *****************************************************************************/
  60. struct vout_sys_t
  61. {
  62.     SDL_Surface *   p_display;                             /* display device */
  64.     int i_width;
  65.     int i_height;
  67. #if SDL_VERSION_ATLEAST(1,2,10)
  68.     unsigned int i_desktop_width;
  69.     unsigned int i_desktop_height;
  70. #endif
  72.     /* For YUV output */
  73.     SDL_Overlay * p_overlay;   /* An overlay we keep to grab the XVideo port */
  75.     /* For RGB output */
  76.     int i_surfaces;
  78.     bool  b_cursor;
  79.     bool  b_cursor_autohidden;
  80.     mtime_t     i_lastmoved;
  81.     mtime_t     i_mouse_hide_timeout;
  82.     mtime_t     i_lastpressed;                        /* to track dbl-clicks */
  83. };
  85. /*****************************************************************************
  86.  * picture_sys_t: direct buffer method descriptor
  87.  *****************************************************************************
  88.  * This structure is part of the picture descriptor, it describes the
  89.  * SDL specific properties of a direct buffer.
  90.  *****************************************************************************/
  91. struct picture_sys_t
  92. {
  93.     SDL_Overlay *p_overlay;
  94. };
  96. /*****************************************************************************
  97.  * Local prototypes
  98.  *****************************************************************************/
  99. static int  Open      ( vlc_object_t * );
  100. static void Close     ( vlc_object_t * );
  101. static int  Init      ( vout_thread_t * );
  102. static void End       ( vout_thread_t * );
  103. static int  Manage    ( vout_thread_t * );
  104. static void Display   ( vout_thread_t *, picture_t * );
  106. static int  OpenDisplay     ( vout_thread_t * );
  107. static void CloseDisplay    ( vout_thread_t * );
  108. static int  NewPicture      ( vout_thread_t *, picture_t * );
  109. static void SetPalette      ( vout_thread_t *,
  110.                               uint16_t *, uint16_t *, uint16_t * );
  112. static int ConvertKey( SDLKey );
  115. #define CHROMA_TEXT N_("SDL chroma format")
  116. #define CHROMA_LONGTEXT N_( 
  117.     "Force the SDL renderer to use a specific chroma format instead of " 
  118.     "trying to improve performances by using the most efficient one.")
  120. /*****************************************************************************
  121.  * Module descriptor
  122.  *****************************************************************************/
  123. vlc_module_begin ()
  124.     set_shortname( "SDL" )
  125.     set_category( CAT_VIDEO )
  126.     set_subcategory( SUBCAT_VIDEO_VOUT )
  127.     set_description( N_("Simple DirectMedia Layer video output") )
  128.     set_capability( "video output", 60 )
  129.     add_shortcut( "sdl" )
  130.     add_string( "sdl-chroma", NULL, NULL, CHROMA_TEXT, CHROMA_LONGTEXT, true )
  131.     set_callbacks( Open, Close )
  132. #if defined( __i386__ ) || defined( __x86_64__ )
  133.     /* On i386, SDL is linked against svgalib */
  134.     linked_with_a_crap_library_which_uses_atexit ()
  135. #endif
  136. vlc_module_end ()
  138. static vlc_mutex_t sdl_lock = VLC_STATIC_MUTEX;
  140. /*****************************************************************************
  141.  * OpenVideo: allocate SDL video thread output method
  142.  *****************************************************************************
  143.  * This function allocate and initialize a SDL vout method. It uses some of the
  144.  * vout properties to choose the correct mode, and change them according to the
  145.  * mode actually used.
  146.  *****************************************************************************/
  147. static int Open ( vlc_object_t *p_this )
  148. {
  149.     vout_thread_t * p_vout = (vout_thread_t *)p_this;
  150.     /* XXX: check for conflicts with the SDL audio output */
  151.     vlc_mutex_lock( &sdl_lock );
  153. #ifdef HAVE_SETENV
  154.     char *psz_method;
  155. #endif
  157.     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
  158.     if( p_vout->p_sys == NULL )
  159.     {
  160.         vlc_mutex_unlock( &sdl_lock );
  161.         return VLC_ENOMEM;
  162.     }
  164.     memset( p_vout->p_sys, 0, sizeof( vout_sys_t ) );
  166.     /* Check if SDL video module has been initialized */
  167.     if( SDL_WasInit( SDL_INIT_VIDEO ) != 0 )
  168.     {
  169.         vlc_mutex_unlock( &sdl_lock );
  170.         free( p_vout->p_sys );
  171.         return VLC_EGENERIC;
  172.     }
  174.     /* Allocate structure */
  175.     p_vout->pf_init = Init;
  176.     p_vout->pf_end = End;
  177.     p_vout->pf_manage = Manage;
  178.     p_vout->pf_render = NULL;
  179.     p_vout->pf_display = Display;
  180.     p_vout->pf_control = NULL;
  182. #ifdef HAVE_SETENV
  183.     char* psz = psz_method = config_GetPsz( p_vout, "vout" );
  184.     if( psz_method )
  185.     {
  186.         while( *psz_method && *psz_method != ':' )
  187.         {
  188.             psz_method++;
  189.         }
  191.         if( *psz_method )
  192.         {
  193.             setenv( "SDL_VIDEODRIVER", psz_method + 1, 1 );
  194.         }
  195.     }
  196.     free( psz );
  197. #endif
  199.     /* Initialize library */
  200.     if( SDL_Init( SDL_INIT_VIDEO
  201. #ifndef WIN32
  202.     /* Win32 SDL implementation doesn't support SDL_INIT_EVENTTHREAD yet*/
  203.                 | SDL_INIT_EVENTTHREAD
  204. #endif
  205. #ifndef NDEBUG
  206.     /* In debug mode you may want vlc to dump a core instead of staying
  207.      * stuck */
  208.                 | SDL_INIT_NOPARACHUTE
  209. #endif
  210.                 ) < 0 )
  211.     {
  212.         msg_Err( p_vout, "cannot initialize SDL (%s)", SDL_GetError() );
  213.         free( p_vout->p_sys );
  214.         vlc_mutex_unlock( &sdl_lock );
  215.         return VLC_EGENERIC;
  216.     }
  218.     vlc_mutex_unlock( &sdl_lock );
  220.     /* Translate keys into unicode */
  221.     SDL_EnableUNICODE(1);
  223.     /* Get the desktop resolution */
  224. #if SDL_VERSION_ATLEAST(1,2,10)
  225.     /* FIXME: SDL has a problem with virtual desktop */
  226.     p_vout->p_sys->i_desktop_width = SDL_GetVideoInfo()->current_w;
  227.     p_vout->p_sys->i_desktop_height = SDL_GetVideoInfo()->current_h;
  228. #endif
  230.     /* Create the cursor */
  231.     p_vout->p_sys->b_cursor = 1;
  232.     p_vout->p_sys->b_cursor_autohidden = 0;
  233.     p_vout->p_sys->i_lastmoved = p_vout->p_sys->i_lastpressed = mdate();
  234.     p_vout->p_sys->i_mouse_hide_timeout =
  235.         var_GetInteger(p_vout, "mouse-hide-timeout") * 1000;
  237.     if( OpenDisplay( p_vout ) )
  238.     {
  239.         msg_Err( p_vout, "cannot set up SDL (%s)", SDL_GetError() );
  240.         SDL_QuitSubSystem( SDL_INIT_VIDEO );
  241.         free( p_vout->p_sys );
  242.         return VLC_EGENERIC;
  243.     }
  245.     return VLC_SUCCESS;
  246. }
  248. /*****************************************************************************
  249.  * Init: initialize SDL video thread output method
  250.  *****************************************************************************
  251.  * This function initialize the SDL display device.
  252.  *****************************************************************************/
  253. static int Init( vout_thread_t *p_vout )
  254. {
  255.     int i_index;
  256.     picture_t *p_pic;
  258.     p_vout->p_sys->i_surfaces = 0;
  260.     I_OUTPUTPICTURES = 0;
  262.     /* Initialize the output structure */
  263.     if( p_vout->p_sys->p_overlay == NULL )
  264.     {
  265.         /* All we have is an RGB image with square pixels */
  266.         p_vout->output.i_width  = p_vout->p_sys->i_width;
  267.         p_vout->output.i_height = p_vout->p_sys->i_height;
  268.         p_vout->output.i_aspect = p_vout->output.i_width
  269.                                    * VOUT_ASPECT_FACTOR
  270.                                    / p_vout->output.i_height;
  271.     }
  272.     else
  273.     {
  274.         /* We may need to convert the chroma, but at least we keep the
  275.          * aspect ratio */
  276.         p_vout->output.i_width  = p_vout->render.i_width;
  277.         p_vout->output.i_height = p_vout->render.i_height;
  278.         p_vout->output.i_aspect = p_vout->render.i_aspect;
  279.     }
  281.     /* Try to initialize SDL_MAX_DIRECTBUFFERS direct buffers */
  282.     while( I_OUTPUTPICTURES < SDL_MAX_DIRECTBUFFERS )
  283.     {
  284.         p_pic = NULL;
  286.         /* Find an empty picture slot */
  287.         for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
  288.         {
  289.             if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
  290.             {
  291.                 p_pic = p_vout->p_picture + i_index;
  292.                 break;
  293.             }
  294.         }
  296.         /* Allocate the picture if we found one */
  297.         if( p_pic == NULL || NewPicture( p_vout, p_pic ) )
  298.         {
  299.             break;
  300.         }
  302.         p_pic->i_status = DESTROYED_PICTURE;
  303.         p_pic->i_type   = DIRECT_PICTURE;
  305.         PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
  307.         I_OUTPUTPICTURES++;
  308.     }
  310.     return VLC_SUCCESS;
  311. }
  313. /*****************************************************************************
  314.  * End: terminate Sys video thread output method
  315.  *****************************************************************************
  316.  * Terminate an output method created by OpenVideo
  317.  *****************************************************************************/
  318. static void End( vout_thread_t *p_vout )
  319. {
  320.     int i_index;
  322.     /* Free the output buffers we allocated */
  323.     for( i_index = I_OUTPUTPICTURES ; i_index ; )
  324.     {
  325.         i_index--;
  326.         if( p_vout->p_sys->p_overlay == NULL )
  327.         {
  328.             /* RGB picture */
  329.         }
  330.         else
  331.         {
  332.             SDL_UnlockYUVOverlay(
  333.                     PP_OUTPUTPICTURE[ i_index ]->p_sys->p_overlay );
  334.             SDL_FreeYUVOverlay(
  335.                     PP_OUTPUTPICTURE[ i_index ]->p_sys->p_overlay );
  336.         }
  337.         free( PP_OUTPUTPICTURE[ i_index ]->p_sys );
  338.     }
  339. }
  341. /*****************************************************************************
  342.  * CloseVideo: destroy Sys video thread output method
  343.  *****************************************************************************
  344.  * Terminate an output method created by vout_SDLCreate
  345.  *****************************************************************************/
  346. static void Close ( vlc_object_t *p_this )
  347. {
  348.     vout_thread_t * p_vout = (vout_thread_t *)p_this;
  350.     CloseDisplay( p_vout );
  351.     SDL_QuitSubSystem( SDL_INIT_VIDEO );
  353.     free( p_vout->p_sys );
  354. }
  356. /*****************************************************************************
  357.  * Manage: handle Sys events
  358.  *****************************************************************************
  359.  * This function should be called regularly by video output thread. It returns
  360.  * a non null value if an error occurred.
  361.  *****************************************************************************/
  362. static int Manage( vout_thread_t *p_vout )
  363. {
  364.     SDL_Event event;                                            /* SDL event */
  365.     vlc_value_t val;
  366.     unsigned int i_width, i_height, i_x, i_y;
  368.     /* Process events */
  369.     while( SDL_PollEvent( &event ) )
  370.     {
  371.         switch( event.type )
  372.         {
  373.         /* Resizing of window */
  374.         case SDL_VIDEORESIZE:
  375.             p_vout->i_changes |= VOUT_SIZE_CHANGE;
  376.             p_vout->i_window_width = p_vout->p_sys->i_width = event.resize.w;
  377.             p_vout->i_window_height = p_vout->p_sys->i_height = event.resize.h;
  378.             break;
  380.         /* Mouse move */
  381.         case SDL_MOUSEMOTION:
  382.             vout_PlacePicture( p_vout, p_vout->p_sys->i_width,
  383.                                p_vout->p_sys->i_height,
  384.                                &i_x, &i_y, &i_width, &i_height );
  386.             /* Compute the x coordinate and check if the value is
  387.                in [0,p_vout->fmt_in.i_visible_width] */
  388.             val.i_int = ( event.motion.x - i_x ) *
  389.                         p_vout->fmt_in.i_visible_width / i_width +
  390.                         p_vout->fmt_in.i_x_offset;
  392.             if( (int)(event.motion.x - i_x) < 0 )
  393.                 val.i_int = 0;
  394.             else if( (unsigned int)val.i_int > p_vout->fmt_in.i_visible_width )
  395.                 val.i_int = p_vout->fmt_in.i_visible_width;
  397.             var_Set( p_vout, "mouse-x", val );
  399.             /* compute the y coordinate and check if the value is
  400.                in [0,p_vout->fmt_in.i_visible_height] */
  401.             val.i_int = ( event.motion.y - i_y ) *
  402.                         p_vout->fmt_in.i_visible_height / i_height +
  403.                         p_vout->fmt_in.i_y_offset;
  405.             if( (int)(event.motion.y - i_y) < 0 )
  406.                 val.i_int = 0;
  407.             else if( (unsigned int)val.i_int > p_vout->fmt_in.i_visible_height )
  408.                 val.i_int = p_vout->fmt_in.i_visible_height;
  410.             var_Set( p_vout, "mouse-y", val );
  411.             var_SetBool( p_vout, "mouse-moved", true );
  413.             if( p_vout->p_sys->b_cursor )
  414.             {
  415.                 if( p_vout->p_sys->b_cursor_autohidden )
  416.                 {
  417.                     p_vout->p_sys->b_cursor_autohidden = 0;
  418.                     SDL_ShowCursor( 1 );
  419.                 }
  420.                 else
  421.                 {
  422.                     p_vout->p_sys->i_lastmoved = mdate();
  423.                 }
  424.             }
  425.             break;
  427.         /* Mouse button released */
  428.         case SDL_MOUSEBUTTONUP:
  429.             switch( event.button.button )
  430.             {
  431.             case SDL_BUTTON_LEFT:
  432.                 {
  433.                     var_Get( p_vout, "mouse-button-down", &val );
  434.                     val.i_int &= ~1;
  435.                     var_Set( p_vout, "mouse-button-down", val );
  437.                     var_SetBool( p_vout, "mouse-clicked", true );
  438.                     var_SetBool( p_vout->p_libvlc, "intf-popupmenu", false );
  439.                 }
  440.                 break;
  442.             case SDL_BUTTON_MIDDLE:
  443.                 {
  444.                     var_Get( p_vout, "mouse-button-down", &val );
  445.                     val.i_int &= ~2;
  446.                     var_Set( p_vout, "mouse-button-down", val );
  448.                     var_Get( p_vout->p_libvlc, "intf-show", &val );
  449.                     val.b_bool = !val.b_bool;
  450.                     var_Set( p_vout->p_libvlc, "intf-show", val );
  451.                 }
  452.                 break;
  454.             case SDL_BUTTON_RIGHT:
  455.                 {
  456.                     var_Get( p_vout, "mouse-button-down", &val );
  457.                     val.i_int &= ~4;
  458.                     var_Set( p_vout, "mouse-button-down", val );
  460.                     var_SetBool( p_vout->p_libvlc, "intf-popupmenu", true );
  461.                 }
  462.                 break;
  463.             }
  464.             break;
  466.         /* Mouse button pressed */
  467.         case SDL_MOUSEBUTTONDOWN:
  468.             switch( event.button.button )
  469.             {
  470.             case SDL_BUTTON_LEFT:
  471.                 var_Get( p_vout, "mouse-button-down", &val );
  472.                 val.i_int |= 1;
  473.                 var_Set( p_vout, "mouse-button-down", val );
  475.                 /* detect double-clicks */
  476.                 if( ( mdate() - p_vout->p_sys->i_lastpressed ) < 300000 )
  477.                     p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
  479.                 p_vout->p_sys->i_lastpressed = mdate();
  480.                 break;
  482.             case SDL_BUTTON_MIDDLE:
  483.                 var_Get( p_vout, "mouse-button-down", &val );
  484.                 val.i_int |= 2;
  485.                 var_Set( p_vout, "mouse-button-down", val );
  486.                 break;
  488.             case SDL_BUTTON_RIGHT:
  489.                 var_Get( p_vout, "mouse-button-down", &val );
  490.                 val.i_int |= 4;
  491.                 var_Set( p_vout, "mouse-button-down", val );
  492.                 break;
  493.             }
  494.             break;
  496.         /* Quit event (close the window) */
  497.         case SDL_QUIT:
  498.             {
  499. #if 0
  500.                 playlist_t *p_playlist = pl_Hold( p_vout );
  501.                 if( p_playlist != NULL )
  502.                 {
  503.                     playlist_Stop( p_playlist );
  504.                     pl_Release( p_vout );
  505.                 }
  506. #else
  507. #warning FIXME FIXME ?
  508. #endif
  509.             }
  510.             break;
  512.         /* Key pressed */
  513.         case SDL_KEYDOWN:
  514.             /* convert the key if possible */
  515.             val.i_int = ConvertKey( event.key.keysym.sym );
  517.             if( !val.i_int )
  518.             {
  519.                 /* Find the right caracter */
  520.                 if( ( event.key.keysym.unicode & 0xff80 ) == 0 )
  521.                 {
  522.                     val.i_int = event.key.keysym.unicode & 0x7f;
  523.                     /* FIXME: find a better solution than this
  524.                               hack to find the right caracter */
  525.                     if( val.i_int >= 1 && val.i_int <= 26 )
  526.                         val.i_int += 96;
  527.                     else if( val.i_int >= 65 && val.i_int <= 90 )
  528.                         val.i_int += 32;
  529.                 }
  530.             }
  532.             if( val.i_int )
  533.             {
  534.                 if( ( event.key.keysym.mod & KMOD_SHIFT ) )
  535.                 {
  536.                     val.i_int |= KEY_MODIFIER_SHIFT;
  537.                 }
  538.                 if( ( event.key.keysym.mod & KMOD_CTRL ) )
  539.                 {
  540.                     val.i_int |= KEY_MODIFIER_CTRL;
  541.                 }
  542.                 if( ( event.key.keysym.mod & KMOD_ALT ) )
  543.                 {
  544.                     val.i_int |= KEY_MODIFIER_ALT;
  545.                 }
  546.                 var_Set( p_vout->p_libvlc, "key-pressed", val );
  547.             }
  549.         default:
  550.             break;
  551.         }
  552.     }
  554.     /* Fullscreen change */
  555.     if( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
  556.     {
  557.         vlc_value_t val_fs;
  559.         /* Update the object variable and trigger callback */
  560.         val_fs.b_bool = !p_vout->b_fullscreen;
  561.         p_vout->b_fullscreen = !p_vout->b_fullscreen;
  562.         var_Set( p_vout, "fullscreen", val_fs );
  564.         /*TODO: add the "always on top" code here !*/
  566.         p_vout->p_sys->b_cursor_autohidden = 0;
  567.         SDL_ShowCursor( p_vout->p_sys->b_cursor &&
  568.                         ! p_vout->p_sys->b_cursor_autohidden );
  570.         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
  571.         p_vout->i_changes |= VOUT_SIZE_CHANGE;
  572.     }
  574.     /* autoscale toggle */
  575.     if( p_vout->i_changes & VOUT_SCALE_CHANGE )
  576.     {
  577.         p_vout->i_changes &= ~VOUT_SCALE_CHANGE;
  579.         p_vout->b_autoscale = var_GetBool( p_vout, "autoscale" );
  580.         p_vout->i_zoom = (int) ZOOM_FP_FACTOR;
  582.         p_vout->i_changes |= VOUT_SIZE_CHANGE;
  583.     }
  585.     /* scaling factor (if no-autoscale) */
  586.     if( p_vout->i_changes & VOUT_ZOOM_CHANGE )
  587.     {
  588.         p_vout->i_changes &= ~VOUT_ZOOM_CHANGE;
  590.         p_vout->b_autoscale = false;
  591.         p_vout->i_zoom = (int)( ZOOM_FP_FACTOR * var_GetFloat( p_vout, "scale" ) );
  593.         p_vout->i_changes |= VOUT_SIZE_CHANGE;
  594.     }
  596.     /* Crop or Aspect Ratio Changes */
  597.     if( p_vout->i_changes & VOUT_CROP_CHANGE ||
  598.         p_vout->i_changes & VOUT_ASPECT_CHANGE )
  599.     {
  600.         p_vout->i_changes &= ~VOUT_CROP_CHANGE;
  601.         p_vout->i_changes &= ~VOUT_ASPECT_CHANGE;
  603.         p_vout->fmt_out.i_x_offset = p_vout->fmt_in.i_x_offset;
  604.         p_vout->fmt_out.i_y_offset = p_vout->fmt_in.i_y_offset;
  605.         p_vout->fmt_out.i_visible_width = p_vout->fmt_in.i_visible_width;
  606.         p_vout->fmt_out.i_visible_height = p_vout->fmt_in.i_visible_height;
  607.         p_vout->fmt_out.i_aspect = p_vout->fmt_in.i_aspect;
  608.         p_vout->fmt_out.i_sar_num = p_vout->fmt_in.i_sar_num;
  609.         p_vout->fmt_out.i_sar_den = p_vout->fmt_in.i_sar_den;
  610.         p_vout->output.i_aspect = p_vout->fmt_in.i_aspect;
  612.         p_vout->i_changes |= VOUT_SIZE_CHANGE;
  613.     }
  615.     /* Size change */
  616.     if( p_vout->i_changes & VOUT_SIZE_CHANGE )
  617.     {
  618.         msg_Dbg( p_vout, "video display resized (%dx%d)",
  619.                  p_vout->p_sys->i_width, p_vout->p_sys->i_height );
  621.         CloseDisplay( p_vout );
  622.         OpenDisplay( p_vout );
  624.         /* We don't need to signal the vout thread about the size change if
  625.          * we can handle rescaling ourselves */
  626.         if( p_vout->p_sys->p_overlay != NULL )
  627.             p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
  628.     }
  630.     /* Pointer change */
  631.     if( ! p_vout->p_sys->b_cursor_autohidden &&
  632.         ( mdate() - p_vout->p_sys->i_lastmoved >
  633.             p_vout->p_sys->i_mouse_hide_timeout ) )
  634.     {
  635.         /* Hide the mouse automatically */
  636.         p_vout->p_sys->b_cursor_autohidden = 1;
  637.         SDL_ShowCursor( 0 );
  638.     }
  640.     return VLC_SUCCESS;
  641. }
  643. /*****************************************************************************
  644.  * Key events handling
  645.  *****************************************************************************/
  646. static const struct
  647. {
  648.     SDLKey sdl_key;
  649.     int i_vlckey;
  650. } sdlkeys_to_vlckeys[] =
  651. {
  652.     { SDLK_F1,  KEY_F1 },
  653.     { SDLK_F2,  KEY_F2 },
  654.     { SDLK_F3,  KEY_F3 },
  655.     { SDLK_F4,  KEY_F4 },
  656.     { SDLK_F5,  KEY_F5 },
  657.     { SDLK_F6,  KEY_F6 },
  658.     { SDLK_F7,  KEY_F7 },
  659.     { SDLK_F8,  KEY_F8 },
  660.     { SDLK_F9,  KEY_F9 },
  661.     { SDLK_F10, KEY_F10 },
  662.     { SDLK_F11, KEY_F11 },
  663.     { SDLK_F12, KEY_F12 },
  665.     { SDLK_RETURN, KEY_ENTER },
  666.     { SDLK_KP_ENTER, KEY_ENTER },
  667.     { SDLK_SPACE, KEY_SPACE },
  668.     { SDLK_ESCAPE, KEY_ESC },
  670.     { SDLK_MENU, KEY_MENU },
  671.     { SDLK_LEFT, KEY_LEFT },
  672.     { SDLK_RIGHT, KEY_RIGHT },
  673.     { SDLK_UP, KEY_UP },
  674.     { SDLK_DOWN, KEY_DOWN },
  676.     { SDLK_HOME, KEY_HOME },
  677.     { SDLK_END, KEY_END },
  678.     { SDLK_PAGEUP, KEY_PAGEUP },
  679.     { SDLK_PAGEDOWN,  KEY_PAGEDOWN },
  681.     { SDLK_INSERT, KEY_INSERT },
  682.     { SDLK_DELETE, KEY_DELETE },
  683.     /*TODO: find a equivalent for SDL 
  684.     { , KEY_MEDIA_NEXT_TRACK }
  685.     { , KEY_MEDIA_PREV_TRACK }
  686.     { , KEY_VOLUME_MUTE }
  687.     { , KEY_VOLUME_DOWN }
  688.     { , KEY_VOLUME_UP }
  689.     { , KEY_MEDIA_PLAY_PAUSE }
  690.     { , KEY_MEDIA_PLAY_PAUSE }*/
  692.     { 0, 0 }
  693. };
  695. static int ConvertKey( SDLKey sdl_key )
  696. {
  697.     int i;
  698.     for( i=0; sdlkeys_to_vlckeys[i].sdl_key != 0; i++ )
  699.     {
  700.         if( sdlkeys_to_vlckeys[i].sdl_key == sdl_key )
  701.         {
  702.             return sdlkeys_to_vlckeys[i].i_vlckey;
  703.         }
  704.     }
  705.     return 0;
  706. }
  709. /*****************************************************************************
  710.  * Display: displays previously rendered output
  711.  *****************************************************************************
  712.  * This function sends the currently rendered image to the display.
  713.  *****************************************************************************/
  714. static void Display( vout_thread_t *p_vout, picture_t *p_pic )
  715. {
  716.     unsigned int x, y, w, h;
  717.     SDL_Rect disp;
  719.     vout_PlacePicture( p_vout, p_vout->p_sys->i_width, p_vout->p_sys->i_height,
  720.                        &x, &y, &w, &h );
  721.     disp.x = x;
  722.     disp.y = y;
  723.     disp.w = w;
  724.     disp.h = h;
  726.     if( p_vout->p_sys->p_overlay == NULL )
  727.     {
  728.         /* RGB picture */
  729.         SDL_Flip( p_vout->p_sys->p_display );
  730.     }
  731.     else
  732.     {
  733.         /* Overlay picture */
  734.         SDL_UnlockYUVOverlay( p_pic->p_sys->p_overlay);
  735.         SDL_DisplayYUVOverlay( p_pic->p_sys->p_overlay , &disp );
  736.         SDL_LockYUVOverlay( p_pic->p_sys->p_overlay);
  737.     }
  738. }
  740. /* following functions are local */
  742. /*****************************************************************************
  743.  * OpenDisplay: open and initialize SDL device
  744.  *****************************************************************************
  745.  * Open and initialize display according to preferences specified in the vout
  746.  * thread fields.
  747.  *****************************************************************************/
  748. static int OpenDisplay( vout_thread_t *p_vout )
  749. {
  750.     uint32_t i_flags;
  751.     int i_bpp;
  753.     /* SDL fucked up fourcc definitions on bigendian machines */
  754.     uint32_t i_sdl_chroma;
  755.     char *psz_chroma = NULL;
  756.     uint32_t i_chroma = 0;
  758.     bool b_overlay = config_GetInt( p_vout, "overlay" );
  760.     /* Set main window's size */
  761. #if SDL_VERSION_ATLEAST(1,2,10)
  762.     p_vout->p_sys->i_width = p_vout->b_fullscreen ? p_vout->p_sys->i_desktop_width :
  763.                                                     p_vout->i_window_width;
  764.     p_vout->p_sys->i_height = p_vout->b_fullscreen ? p_vout->p_sys->i_desktop_height :
  765.                                                      p_vout->i_window_height;
  766. #else
  767.     p_vout->p_sys->i_width = p_vout->b_fullscreen ? p_vout->output.i_width :
  768.                                                     p_vout->i_window_width;
  769.     p_vout->p_sys->i_height = p_vout->b_fullscreen ? p_vout->output.i_height :
  770.                                                      p_vout->i_window_height;
  771. #endif
  773.     /* Initialize flags and cursor */
  774.     i_flags = SDL_ANYFORMAT | SDL_HWPALETTE | SDL_HWSURFACE | SDL_DOUBLEBUF;
  775.     i_flags |= p_vout->b_fullscreen ? SDL_FULLSCREEN : SDL_RESIZABLE;
  777.     i_bpp = SDL_VideoModeOK( p_vout->p_sys->i_width, p_vout->p_sys->i_height,
  778.                              SDL_DEFAULT_BPP, i_flags );
  779.     if( i_bpp == 0 )
  780.     {
  781.         msg_Err( p_vout, "no video mode available" );
  782.         return VLC_EGENERIC;
  783.     }
  785.     p_vout->p_sys->p_display = SDL_SetVideoMode( p_vout->p_sys->i_width,
  786.                                                  p_vout->p_sys->i_height,
  787.                                                  i_bpp, i_flags );
  789.     if( p_vout->p_sys->p_display == NULL )
  790.     {
  791.         msg_Err( p_vout, "cannot set video mode" );
  792.         return VLC_EGENERIC;
  793.     }
  795.     SDL_LockSurface( p_vout->p_sys->p_display );
  797.     if( ( psz_chroma = config_GetPsz( p_vout, "sdl-chroma" ) ) )
  798.     {
  799.         if( strlen( psz_chroma ) >= 4 )
  800.         {
  801.             memcpy(&i_chroma, psz_chroma, 4);
  802.             msg_Dbg( p_vout, "Forcing chroma to 0x%.8x (%4.4s)", i_chroma, (char*)&i_chroma );
  803.         }
  804.         else
  805.         {
  806.             free( psz_chroma );
  807.             psz_chroma = NULL;
  808.         }
  809.     }
  811.     if( b_overlay )
  812.     {
  813.         /* Choose the chroma we will try first. */
  814.         do
  815.         {
  816.             if( !psz_chroma ) i_chroma = 0;
  817.             switch( i_chroma ? i_chroma : p_vout->render.i_chroma )
  818.             {
  819.                 case VLC_FOURCC('Y','U','Y','2'):
  820.                 case VLC_FOURCC('Y','U','N','V'):
  821.                     p_vout->output.i_chroma = VLC_FOURCC('Y','U','Y','2');
  822.                     i_sdl_chroma = SDL_YUY2_OVERLAY;
  823.                     break;
  824.                 case VLC_FOURCC('U','Y','V','Y'):
  825.                 case VLC_FOURCC('U','Y','N','V'):
  826.                 case VLC_FOURCC('Y','4','2','2'):
  827.                     p_vout->output.i_chroma = VLC_FOURCC('U','Y','V','Y');
  828.                     i_sdl_chroma = SDL_UYVY_OVERLAY;
  829.                     break;
  830.                 case VLC_FOURCC('Y','V','Y','U'):
  831.                     p_vout->output.i_chroma = VLC_FOURCC('Y','V','Y','U');
  832.                     i_sdl_chroma = SDL_YVYU_OVERLAY;
  833.                     break;
  834.                 case VLC_FOURCC('Y','V','1','2'):
  835.                 case VLC_FOURCC('I','4','2','0'):
  836.                 case VLC_FOURCC('I','Y','U','V'):
  837.                 default:
  838.                     p_vout->output.i_chroma = VLC_FOURCC('Y','V','1','2');
  839.                     i_sdl_chroma = SDL_YV12_OVERLAY;
  840.                     break;
  841.             }
  842.             free( psz_chroma ); psz_chroma = NULL;
  844.             p_vout->p_sys->p_overlay =
  845.                 SDL_CreateYUVOverlay( 32, 32, i_sdl_chroma,
  846.                                       p_vout->p_sys->p_display );
  847.             /* FIXME: if the first overlay we find is software, don't stop,
  848.              * because we may find a hardware one later ... */
  849.         }
  850.         while( i_chroma && !p_vout->p_sys->p_overlay );
  853.         /* If this best choice failed, fall back to other chromas */
  854.         if( p_vout->p_sys->p_overlay == NULL )
  855.         {
  856.             p_vout->output.i_chroma = VLC_FOURCC('I','Y','U','V');
  857.             p_vout->p_sys->p_overlay =
  858.                 SDL_CreateYUVOverlay( 32, 32, SDL_IYUV_OVERLAY,
  859.                                       p_vout->p_sys->p_display );
  860.         }
  862.         if( p_vout->p_sys->p_overlay == NULL )
  863.         {
  864.             p_vout->output.i_chroma = VLC_FOURCC('Y','V','1','2');
  865.             p_vout->p_sys->p_overlay =
  866.                 SDL_CreateYUVOverlay( 32, 32, SDL_YV12_OVERLAY,
  867.                                       p_vout->p_sys->p_display );
  868.         }
  870.         if( p_vout->p_sys->p_overlay == NULL )
  871.         {
  872.             p_vout->output.i_chroma = VLC_FOURCC('Y','U','Y','2');
  873.             p_vout->p_sys->p_overlay =
  874.                 SDL_CreateYUVOverlay( 32, 32, SDL_YUY2_OVERLAY,
  875.                                       p_vout->p_sys->p_display );
  876.         }
  877.     }
  879.     if( p_vout->p_sys->p_overlay == NULL )
  880.     {
  881.         if( b_overlay )
  882.             msg_Warn( p_vout, "no SDL overlay for 0x%.8x (%4.4s)",
  883.                       p_vout->render.i_chroma,
  884.                       (char*)&p_vout->render.i_chroma );
  885.         else
  886.             msg_Warn( p_vout, "SDL overlay disabled by the user" );
  888.         switch( p_vout->p_sys->p_display->format->BitsPerPixel )
  889.         {
  890.             case 8:
  891.                 p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2');
  892.                 p_vout->output.pf_setpalette = SetPalette;
  893.                 break;
  894.             case 15:
  895.                 p_vout->output.i_chroma = VLC_FOURCC('R','V','1','5');
  896.                 break;
  897.             case 16:
  898.                 p_vout->output.i_chroma = VLC_FOURCC('R','V','1','6');
  899.                 break;
  900.             case 24:
  901.                 p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4');
  902.                 break;
  903.             case 32:
  904.                 p_vout->output.i_chroma = VLC_FOURCC('R','V','3','2');
  905.                 break;
  906.             default:
  907.                 msg_Err( p_vout, "unknown screen depth %i",
  908.                          p_vout->p_sys->p_display->format->BitsPerPixel );
  909.                 SDL_UnlockSurface( p_vout->p_sys->p_display );
  910.                 SDL_FreeSurface( p_vout->p_sys->p_display );
  911.                 return VLC_EGENERIC;
  912.         }
  914.         p_vout->output.i_rmask = p_vout->p_sys->p_display->format->Rmask;
  915.         p_vout->output.i_gmask = p_vout->p_sys->p_display->format->Gmask;
  916.         p_vout->output.i_bmask = p_vout->p_sys->p_display->format->Bmask;
  918.         SDL_WM_SetCaption( VOUT_TITLE " (software RGB SDL output)",
  919.                            VOUT_TITLE " (software RGB SDL output)" );
  920.     }
  921.     else
  922.     {
  923.         if( p_vout->p_sys->p_overlay->hw_overlay )
  924.         {
  925.             SDL_WM_SetCaption( VOUT_TITLE " (hardware YUV SDL output)",
  926.                                VOUT_TITLE " (hardware YUV SDL output)" );
  927.         }
  928.         else
  929.         {
  930.             SDL_WM_SetCaption( VOUT_TITLE " (software YUV SDL output)",
  931.                                VOUT_TITLE " (software YUV SDL output)" );
  932.         }
  933.     }
  935.     SDL_EventState( SDL_KEYUP, SDL_IGNORE );               /* ignore keys up */
  937.     return VLC_SUCCESS;
  938. }
  940. /*****************************************************************************
  941.  * CloseDisplay: close and reset SDL device
  942.  *****************************************************************************
  943.  * This function returns all resources allocated by OpenDisplay and restore
  944.  * the original state of the device.
  945.  *****************************************************************************/
  946. static void CloseDisplay( vout_thread_t *p_vout )
  947. {
  948.     SDL_FreeYUVOverlay( p_vout->p_sys->p_overlay );
  949.     SDL_UnlockSurface ( p_vout->p_sys->p_display );
  950.     SDL_FreeSurface( p_vout->p_sys->p_display );
  951. }
  953. /*****************************************************************************
  954.  * NewPicture: allocate a picture
  955.  *****************************************************************************
  956.  * Returns 0 on success, -1 otherwise
  957.  *****************************************************************************/
  958. static int NewPicture( vout_thread_t *p_vout, picture_t *p_pic )
  959. {
  960.     int i_width  = p_vout->output.i_width;
  961.     int i_height = p_vout->output.i_height;
  963.     if( p_vout->p_sys->p_overlay == NULL )
  964.     {
  965.         /* RGB picture */
  966.         if( p_vout->p_sys->i_surfaces )
  967.         {
  968.             /* We already allocated this surface, return */
  969.             return VLC_EGENERIC;
  970.         }
  972.         p_pic->p_sys = malloc( sizeof( picture_sys_t ) );
  974.         if( p_pic->p_sys == NULL )
  975.         {
  976.             return VLC_ENOMEM;
  977.         }
  979.         switch( p_vout->p_sys->p_display->format->BitsPerPixel )
  980.         {
  981.             case 8:
  982.                 p_pic->p->i_pixel_pitch = 1;
  983.                 break;
  984.             case 15:
  985.             case 16:
  986.                 p_pic->p->i_pixel_pitch = 2;
  987.                 break;
  988.             case 24:
  989.             case 32:
  990.                 p_pic->p->i_pixel_pitch = 4;
  991.                 break;
  992.             default:
  993.                 return VLC_EGENERIC;
  994.         }
  996.         p_pic->p->p_pixels = p_vout->p_sys->p_display->pixels;
  997.         p_pic->p->i_lines = p_vout->p_sys->p_display->h;
  998.         p_pic->p->i_visible_lines = p_vout->p_sys->p_display->h;
  999.         p_pic->p->i_pitch = p_vout->p_sys->p_display->pitch;
  1000.         p_pic->p->i_visible_pitch =
  1001.             p_pic->p->i_pixel_pitch * p_vout->p_sys->p_display->w;
  1003.         p_vout->p_sys->i_surfaces++;
  1005.         p_pic->i_planes = 1;
  1006.     }
  1007.     else
  1008.     {
  1009.         p_pic->p_sys = malloc( sizeof( picture_sys_t ) );
  1011.         if( p_pic->p_sys == NULL )
  1012.         {
  1013.             return VLC_ENOMEM;
  1014.         }
  1016.         p_pic->p_sys->p_overlay =
  1017.             SDL_CreateYUVOverlay( i_width, i_height,
  1018.                                   p_vout->output.i_chroma,
  1019.                                   p_vout->p_sys->p_display );
  1021.         if( p_pic->p_sys->p_overlay == NULL )
  1022.         {
  1023.             free( p_pic->p_sys );
  1024.             return VLC_EGENERIC;
  1025.         }
  1027.         SDL_LockYUVOverlay( p_pic->p_sys->p_overlay );
  1029.         p_pic->Y_PIXELS = p_pic->p_sys->p_overlay->pixels[0];
  1030.         p_pic->p[Y_PLANE].i_lines = p_pic->p_sys->p_overlay->h;
  1031.         p_pic->p[Y_PLANE].i_visible_lines = p_pic->p_sys->p_overlay->h;
  1032.         p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->p_overlay->pitches[0];
  1034.         switch( p_vout->output.i_chroma )
  1035.         {
  1036.         case SDL_YV12_OVERLAY:
  1037.             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
  1038.             p_pic->p[Y_PLANE].i_visible_pitch = p_pic->p_sys->p_overlay->w;
  1040.             p_pic->U_PIXELS = p_pic->p_sys->p_overlay->pixels[2];
  1041.             p_pic->p[U_PLANE].i_lines = p_pic->p_sys->p_overlay->h / 2;
  1042.             p_pic->p[U_PLANE].i_visible_lines = p_pic->p_sys->p_overlay->h / 2;
  1043.             p_pic->p[U_PLANE].i_pitch = p_pic->p_sys->p_overlay->pitches[2];
  1044.             p_pic->p[U_PLANE].i_pixel_pitch = 1;
  1045.             p_pic->p[U_PLANE].i_visible_pitch = p_pic->p_sys->p_overlay->w / 2;
  1047.             p_pic->V_PIXELS = p_pic->p_sys->p_overlay->pixels[1];
  1048.             p_pic->p[V_PLANE].i_lines = p_pic->p_sys->p_overlay->h / 2;
  1049.             p_pic->p[V_PLANE].i_visible_lines = p_pic->p_sys->p_overlay->h / 2;
  1050.             p_pic->p[V_PLANE].i_pitch = p_pic->p_sys->p_overlay->pitches[1];
  1051.             p_pic->p[V_PLANE].i_pixel_pitch = 1;
  1052.             p_pic->p[V_PLANE].i_visible_pitch = p_pic->p_sys->p_overlay->w / 2;
  1054.             p_pic->i_planes = 3;
  1055.             break;
  1057.         case SDL_IYUV_OVERLAY:
  1058.             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
  1059.             p_pic->p[Y_PLANE].i_visible_pitch = p_pic->p_sys->p_overlay->w;
  1061.             p_pic->U_PIXELS = p_pic->p_sys->p_overlay->pixels[1];
  1062.             p_pic->p[U_PLANE].i_lines = p_pic->p_sys->p_overlay->h / 2;
  1063.             p_pic->p[U_PLANE].i_visible_lines = p_pic->p_sys->p_overlay->h / 2;
  1064.             p_pic->p[U_PLANE].i_pitch = p_pic->p_sys->p_overlay->pitches[1];
  1065.             p_pic->p[U_PLANE].i_pixel_pitch = 1;
  1066.             p_pic->p[U_PLANE].i_visible_pitch = p_pic->p_sys->p_overlay->w / 2;
  1068.             p_pic->V_PIXELS = p_pic->p_sys->p_overlay->pixels[2];
  1069.             p_pic->p[V_PLANE].i_lines = p_pic->p_sys->p_overlay->h / 2;
  1070.             p_pic->p[V_PLANE].i_visible_lines = p_pic->p_sys->p_overlay->h / 2;
  1071.             p_pic->p[V_PLANE].i_pitch = p_pic->p_sys->p_overlay->pitches[2];
  1072.             p_pic->p[V_PLANE].i_pixel_pitch = 1;
  1073.             p_pic->p[V_PLANE].i_visible_pitch = p_pic->p_sys->p_overlay->w / 2;
  1075.             p_pic->i_planes = 3;
  1076.             break;
  1078.         default:
  1079.             p_pic->p[Y_PLANE].i_pixel_pitch = 2;
  1080.             p_pic->p[U_PLANE].i_visible_pitch = p_pic->p_sys->p_overlay->w * 2;
  1082.             p_pic->i_planes = 1;
  1083.             break;
  1084.         }
  1085.     }
  1087.     return VLC_SUCCESS;
  1088. }
  1090. /*****************************************************************************
  1091.  * SetPalette: sets an 8 bpp palette
  1092.  *****************************************************************************/
  1093. static void SetPalette( vout_thread_t *p_vout,
  1094.                         uint16_t *red, uint16_t *green, uint16_t *blue )
  1095. {
  1096.     SDL_Color colors[256];
  1097.     int i;
  1099.     /* Fill colors with color information */
  1100.     for( i = 0; i < 256; i++ )
  1101.     {
  1102.         colors[ i ].r = red[ i ] >> 8;
  1103.         colors[ i ].g = green[ i ] >> 8;
  1104.         colors[ i ].b = blue[ i ] >> 8;
  1105.     }
  1107.     /* Set palette */
  1108.     if( SDL_SetColors( p_vout->p_sys->p_display, colors, 0, 256 ) == 0 )
  1109.     {
  1110.         msg_Err( p_vout, "failed to set palette" );
  1111.     }
  1112. }