1 /*****************************************************************************
2 * hd1000v.cpp: HD1000 video output display method
3 *****************************************************************************
4 * Copyright (C) 2004 the VideoLAN team
7 * Authors: Jean-Paul Saman <jpsaman _at_ videolan _dot_ org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
28 #include <errno.h> /* ENOMEM */
35 #include <vlc_plugin.h>
37 #include <vlc_playlist.h>
40 #include <cascade/graphics/CascadeBitmap.h>
41 #include <cascade/graphics/CascadeScreen.h>
43 /*****************************************************************************
45 *****************************************************************************/
46 static int Create ( vlc_object_t * );
47 static void Destroy ( vlc_object_t * );
49 static int Init ( vout_thread_t * );
50 static void End ( vout_thread_t * );
51 static void Display ( vout_thread_t *, picture_t * );
53 static int NewPicture ( vout_thread_t *, picture_t * );
54 static void FreePicture( vout_thread_t *, picture_t * );
56 /*****************************************************************************
58 *****************************************************************************/
60 set_description( _("HD1000 video output") );
61 set_capability( "video output", 100 );
62 add_shortcut( "hd1000v" );
63 set_callbacks( Create, Destroy );
66 /*****************************************************************************
67 * vout_sys_t: video output method descriptor
68 *****************************************************************************
69 * This structure is part of the video output thread descriptor.
70 * It describes the aa specific properties of an output thread.
71 *****************************************************************************/
74 uint32_t i_width; /* width of main window */
75 uint32_t i_height; /* height of main window */
76 uint32_t i_screen_depth;
77 bool b_double_buffered;
79 uint32_t u_current; /* Current output resolution. */
80 CascadeScreen *p_screen;
85 CascadeSharedMemZone *p_image;
88 /*****************************************************************************
89 * Create: allocates video thread output method
90 *****************************************************************************
91 * This function allocates and initializes a aa vout method.
92 *****************************************************************************/
93 static int Create( vlc_object_t *p_this )
95 vout_thread_t *p_vout = (vout_thread_t *)p_this;
96 bool b_double_buffered = false;
98 p_vout->p_sys = (struct vout_sys_t*) malloc( sizeof(struct vout_sys_t) );
99 if( p_vout->p_sys == NULL )
101 msg_Err( p_vout, "out of memory" );
105 /* Allocate a screen for VLC vout. */
106 p_vout->p_sys->p_screen = new CascadeScreen();
107 if( p_vout->p_sys->p_screen == NULL )
109 msg_Err( p_vout, "unable to allocate screen" );
110 free( p_vout->p_sys );
114 p_vout->pf_init = Init;
115 p_vout->pf_end = End;
116 p_vout->pf_manage = NULL;
117 p_vout->pf_render = NULL;
118 p_vout->pf_display = Display;
120 /* Get current screen resolution */
121 msg_Dbg( p_vout, "number of screen resolutions supported %u",
122 p_vout->p_sys->p_screen->GetNumScreenResolutionsSupported() );
124 p_vout->p_sys->p_screen->GetCurrentScreenResolution( (u32) p_vout->p_sys->u_current );
125 p_vout->p_sys->p_screen->SetScreenResolution( (u32) p_vout->p_sys->u_current );
128 msg_Dbg( p_vout, "available screen resolutions:" );
129 for (u32 i=0; i<p_vout->p_sys->p_screen->GetNumScreenResolutionsSupported(); i++)
136 p_vout->p_sys->p_screen->GetSupportedScreenResolutionAt( i,
137 i_width, i_height, i_screen_depth, b_buffered);
138 msg_Dbg( p_vout, " screen index = %u, width = %u, height = %u, depth = %u, double buffered = %s",
139 i, i_width, i_height, i_screen_depth, (b_buffered ? "yes" : "no") );
143 p_vout->p_sys->p_screen->GetSupportedScreenResolutionAt( (u32) p_vout->p_sys->u_current,
144 (u32) p_vout->p_sys->i_width,
145 (u32) p_vout->p_sys->i_height,
146 (u8) p_vout->p_sys->i_screen_depth,
148 p_vout->p_sys->b_double_buffered = (bool) b_double_buffered;
149 msg_Dbg( p_vout, "using screen index = %u, width = %u, height = %u, depth = %u, double buffered = %d",
150 p_vout->p_sys->u_current, /* Current screen. */
151 p_vout->p_sys->i_width,
152 p_vout->p_sys->i_height,
153 p_vout->p_sys->i_screen_depth,
154 p_vout->p_sys->b_double_buffered );
159 static void Destroy( vlc_object_t *p_this )
161 vout_thread_t *p_vout = (vout_thread_t *)p_this;
163 delete p_vout->p_sys->p_screen;
164 free( p_vout->p_sys );
167 /*****************************************************************************
168 * Init: initialize video thread output method
169 *****************************************************************************/
170 static int Init( vout_thread_t *p_vout )
173 picture_t *p_pic = NULL;
175 I_OUTPUTPICTURES = 0;
177 p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2');
178 p_vout->output.i_width = p_vout->p_sys->i_width;
179 p_vout->output.i_height = p_vout->p_sys->i_height;
180 p_vout->output.i_aspect = p_vout->p_sys->i_width
181 * VOUT_ASPECT_FACTOR / p_vout->p_sys->i_height;
183 /* Only RGBA 32bpp is supported by output device. */
184 switch( p_vout->p_sys->i_screen_depth )
186 case 8: /* FIXME: set the palette */
187 p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2'); break;
189 p_vout->output.i_chroma = VLC_FOURCC('R','V','1','5'); break;
191 p_vout->output.i_chroma = VLC_FOURCC('R','V','1','6'); break;
193 p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4'); break;
195 p_vout->output.i_chroma = VLC_FOURCC('R','V','3','2'); break;
197 msg_Err( p_vout, "unknown screen depth %i",
198 p_vout->p_sys->i_screen_depth );
202 /* Find an empty picture slot */
203 for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
205 if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
207 p_pic = p_vout->p_picture + i_index;
212 if( p_pic == NULL || NewPicture( p_vout, p_pic ) )
217 /* Allocate the picture */
218 p_pic->p->i_lines = p_vout->p_sys->i_height;
219 p_pic->p->i_visible_lines = p_vout->p_sys->i_height;
220 p_pic->p->i_pitch = p_vout->p_sys->i_width;
221 p_pic->p->i_pixel_pitch = 1;
222 p_pic->p->i_visible_pitch = p_vout->p_sys->i_width;
225 p_pic->i_status = DESTROYED_PICTURE;
226 p_pic->i_type = DIRECT_PICTURE;
228 PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
234 /*****************************************************************************
235 * End: terminate video thread output method
236 *****************************************************************************/
237 static void End( vout_thread_t *p_vout )
241 /* Free the direct buffers we allocated */
242 for( i_index = I_OUTPUTPICTURES ; i_index ; )
245 FreePicture( p_vout, PP_OUTPUTPICTURE[ i_index ] );
249 /*****************************************************************************
250 * NewPicture: Allocate shared memory zone for video output
251 *****************************************************************************/
252 static int NewPicture( vout_thread_t *p_vout, picture_t *p_pic )
254 CascadeDims p_dims = p_vout->p_sys->p_screen->GetDims();
256 p_pic->p_sys = (picture_sys_t *) malloc( sizeof( picture_sys_t ) );
257 if( p_pic->p_sys == NULL )
262 /* Fill in picture_t fields */
263 vout_InitPicture( VLC_OBJECT(p_vout), p_pic, p_vout->output.i_chroma,
264 p_vout->output.i_width, p_vout->output.i_height,
265 p_vout->output.i_aspect );
267 p_pic->p_sys->p_image = new CascadeSharedMemZone();
268 if( p_pic->p_sys->p_image == NULL )
270 free( p_pic->p_sys );
274 if( p_pic->p_sys->p_image->Open( "vlc_hd1000v", p_vout->output.i_width *
275 p_vout->output.i_height * p_vout->p_sys->i_screen_depth,
278 msg_Err( p_vout, "failed to allocate shared memory" );
279 free( p_pic->p_sys );
283 p_pic->p->i_lines = p_vout->output.i_height;
284 p_pic->p->i_visible_lines = p_vout->output.i_height;
285 p_pic->p->p_pixels = (uint8_t*) p_pic->p_sys->p_image->MapLock();
286 p_pic->p->i_pitch = p_vout->p_sys->i_screen_depth;
287 p_pic->p->i_visible_pitch = p_pic->p->i_pixel_pitch
288 * p_vout->output.i_width;
293 /*****************************************************************************
294 * FreePicture: destroy a picture allocated with NewPicture
295 *****************************************************************************
296 * Destroy SharedMemZoned AND associated data. The picture normally will be
297 * unlocked in the Display() function except when the video output is closed
298 * before the picture is displayed.
299 *****************************************************************************/
300 static void FreePicture( vout_thread_t *p_vout, picture_t *p_pic )
302 if( p_pic->p_sys->p_image->Unlock() )
303 { /* Just a test to see the effect described above. REMOVE THIS */
304 msg_Err( p_vout, "unlocking shared memory failed, already unlocked" );
307 if( p_pic->p_sys->p_image->Close() )
309 msg_Err( p_vout, "closing shared memory failed. Leaking memory of %ul",
310 p_pic->p_sys->p_image->GetSize() );
313 delete p_pic->p_sys->p_image;
314 free( p_pic->p_sys );
317 /*****************************************************************************
318 * Display: Map p_image onto the screen
319 *****************************************************************************/
320 static void Display( vout_thread_t *p_vout, picture_t *p_pic )
322 uint32_t i_width, i_height, i_x, i_y;
323 uint32_t i_offset = 0;
325 vout_PlacePicture( p_vout, p_vout->p_sys->i_width,
326 p_vout->p_sys->i_height,
327 &i_x, &i_y, &i_width, &i_height );
328 msg_Dbg( p_vout, "PlacePicture at x_left = %d, y_left = %d, x_bottom = %d, y_bottom = %d",
329 i_x, i_y, i_width, i_height );
331 /* Currently the only pixel format supported is 32bpp RGBA.*/
332 p_vout->p_sys->p_screen->LockScreen();
334 /* Unlock the shared memory region first. */
335 if( p_pic->p_sys->p_image->Unlock() )
337 msg_Err( p_vout, "unlocking shared memory failed. Expect threading problems." );
340 p_vout->p_sys->p_screen->Blit( CascadePoint( (u32) i_x, (u32) i_y ), /* Place bitmap at */
341 (*p_pic->p_sys->p_image) , /* Image data */
342 (u32) i_offset, /* Offset in SharedMemoryZone */
343 (u32) i_width, /* Source bitmap width */
344 (u32) i_height, /* Source bitmap height */
345 (u32) p_vout->p_sys->i_screen_depth, /* Source pixel depth */
346 CascadeRect( (u32) i_x, (u32) i_y, (u32) i_width, (u32) i_height ) );
348 p_vout->p_sys->p_screen->UnlockScreen();