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 */
36 #include <vlc_playlist.h>
39 #include <cascade/graphics/CascadeBitmap.h>
40 #include <cascade/graphics/CascadeScreen.h>
42 /*****************************************************************************
44 *****************************************************************************/
45 static int Create ( vlc_object_t * );
46 static void Destroy ( vlc_object_t * );
48 static int Init ( vout_thread_t * );
49 static void End ( vout_thread_t * );
50 static void Display ( vout_thread_t *, picture_t * );
52 static int NewPicture ( vout_thread_t *, picture_t * );
53 static void FreePicture( vout_thread_t *, picture_t * );
55 /*****************************************************************************
57 *****************************************************************************/
59 set_description( _("HD1000 video output") );
60 set_capability( "video output", 100 );
61 add_shortcut( "hd1000v" );
62 set_callbacks( Create, Destroy );
65 /*****************************************************************************
66 * vout_sys_t: video output method descriptor
67 *****************************************************************************
68 * This structure is part of the video output thread descriptor.
69 * It describes the aa specific properties of an output thread.
70 *****************************************************************************/
73 uint32_t i_width; /* width of main window */
74 uint32_t i_height; /* height of main window */
75 uint32_t i_screen_depth;
76 vlc_bool_t b_double_buffered;
78 uint32_t u_current; /* Current output resolution. */
79 CascadeScreen *p_screen;
84 CascadeSharedMemZone *p_image;
87 /*****************************************************************************
88 * Create: allocates video thread output method
89 *****************************************************************************
90 * This function allocates and initializes a aa vout method.
91 *****************************************************************************/
92 static int Create( vlc_object_t *p_this )
94 vout_thread_t *p_vout = (vout_thread_t *)p_this;
95 bool b_double_buffered = false;
97 p_vout->p_sys = (struct vout_sys_t*) malloc( sizeof(struct vout_sys_t) );
98 if( p_vout->p_sys == NULL )
100 msg_Err( p_vout, "out of memory" );
104 /* Allocate a screen for VLC vout. */
105 p_vout->p_sys->p_screen = new CascadeScreen();
106 if( p_vout->p_sys->p_screen == NULL )
108 msg_Err( p_vout, "unable to allocate screen" );
109 free( p_vout->p_sys );
113 p_vout->pf_init = Init;
114 p_vout->pf_end = End;
115 p_vout->pf_manage = NULL;
116 p_vout->pf_render = NULL;
117 p_vout->pf_display = Display;
119 /* Get current screen resolution */
120 msg_Dbg( p_vout, "number of screen resolutions supported %u",
121 p_vout->p_sys->p_screen->GetNumScreenResolutionsSupported() );
123 p_vout->p_sys->p_screen->GetCurrentScreenResolution( (u32) p_vout->p_sys->u_current );
124 p_vout->p_sys->p_screen->SetScreenResolution( (u32) p_vout->p_sys->u_current );
127 msg_Dbg( p_vout, "available screen resolutions:" );
128 for (u32 i=0; i<p_vout->p_sys->p_screen->GetNumScreenResolutionsSupported(); i++)
135 p_vout->p_sys->p_screen->GetSupportedScreenResolutionAt( i,
136 i_width, i_height, i_screen_depth, b_buffered);
137 msg_Dbg( p_vout, " screen index = %u, width = %u, height = %u, depth = %u, double buffered = %s",
138 i, i_width, i_height, i_screen_depth, (b_buffered ? "yes" : "no") );
142 p_vout->p_sys->p_screen->GetSupportedScreenResolutionAt( (u32) p_vout->p_sys->u_current,
143 (u32) p_vout->p_sys->i_width,
144 (u32) p_vout->p_sys->i_height,
145 (u8) p_vout->p_sys->i_screen_depth,
147 p_vout->p_sys->b_double_buffered = (vlc_bool_t) b_double_buffered;
148 msg_Dbg( p_vout, "using screen index = %u, width = %u, height = %u, depth = %u, double buffered = %d",
149 p_vout->p_sys->u_current, /* Current screen. */
150 p_vout->p_sys->i_width,
151 p_vout->p_sys->i_height,
152 p_vout->p_sys->i_screen_depth,
153 p_vout->p_sys->b_double_buffered );
158 static void Destroy( vlc_object_t *p_this )
160 vout_thread_t *p_vout = (vout_thread_t *)p_this;
162 delete p_vout->p_sys->p_screen;
163 free( p_vout->p_sys );
166 /*****************************************************************************
167 * Init: initialize video thread output method
168 *****************************************************************************/
169 static int Init( vout_thread_t *p_vout )
172 picture_t *p_pic = NULL;
174 I_OUTPUTPICTURES = 0;
176 p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2');
177 p_vout->output.i_width = p_vout->p_sys->i_width;
178 p_vout->output.i_height = p_vout->p_sys->i_height;
179 p_vout->output.i_aspect = p_vout->p_sys->i_width
180 * VOUT_ASPECT_FACTOR / p_vout->p_sys->i_height;
182 /* Only RGBA 32bpp is supported by output device. */
183 switch( p_vout->p_sys->i_screen_depth )
185 case 8: /* FIXME: set the palette */
186 p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2'); break;
188 p_vout->output.i_chroma = VLC_FOURCC('R','V','1','5'); break;
190 p_vout->output.i_chroma = VLC_FOURCC('R','V','1','6'); break;
192 p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4'); break;
194 p_vout->output.i_chroma = VLC_FOURCC('R','V','3','2'); break;
196 msg_Err( p_vout, "unknown screen depth %i",
197 p_vout->p_sys->i_screen_depth );
201 /* Find an empty picture slot */
202 for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
204 if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
206 p_pic = p_vout->p_picture + i_index;
211 if( p_pic == NULL || NewPicture( p_vout, p_pic ) )
216 /* Allocate the picture */
217 p_pic->p->i_lines = p_vout->p_sys->i_height;
218 p_pic->p->i_visible_lines = p_vout->p_sys->i_height;
219 p_pic->p->i_pitch = p_vout->p_sys->i_width;
220 p_pic->p->i_pixel_pitch = 1;
221 p_pic->p->i_visible_pitch = p_vout->p_sys->i_width;
224 p_pic->i_status = DESTROYED_PICTURE;
225 p_pic->i_type = DIRECT_PICTURE;
227 PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
233 /*****************************************************************************
234 * End: terminate video thread output method
235 *****************************************************************************/
236 static void End( vout_thread_t *p_vout )
240 /* Free the direct buffers we allocated */
241 for( i_index = I_OUTPUTPICTURES ; i_index ; )
244 FreePicture( p_vout, PP_OUTPUTPICTURE[ i_index ] );
248 /*****************************************************************************
249 * NewPicture: Allocate shared memory zone for video output
250 *****************************************************************************/
251 static int NewPicture( vout_thread_t *p_vout, picture_t *p_pic )
253 CascadeDims p_dims = p_vout->p_sys->p_screen->GetDims();
255 p_pic->p_sys = (picture_sys_t *) malloc( sizeof( picture_sys_t ) );
256 if( p_pic->p_sys == NULL )
261 /* Fill in picture_t fields */
262 vout_InitPicture( VLC_OBJECT(p_vout), p_pic, p_vout->output.i_chroma,
263 p_vout->output.i_width, p_vout->output.i_height,
264 p_vout->output.i_aspect );
266 p_pic->p_sys->p_image = new CascadeSharedMemZone();
267 if( p_pic->p_sys->p_image == NULL )
269 free( p_pic->p_sys );
273 if( p_pic->p_sys->p_image->Open( "vlc_hd1000v", p_vout->output.i_width *
274 p_vout->output.i_height * p_vout->p_sys->i_screen_depth,
277 msg_Err( p_vout, "failed to allocate shared memory" );
278 free( p_pic->p_sys );
282 p_pic->p->i_lines = p_vout->output.i_height;
283 p_pic->p->i_visible_lines = p_vout->output.i_height;
284 p_pic->p->p_pixels = (uint8_t*) p_pic->p_sys->p_image->MapLock();
285 p_pic->p->i_pitch = p_vout->p_sys->i_screen_depth;
286 p_pic->p->i_visible_pitch = p_pic->p->i_pixel_pitch
287 * p_vout->output.i_width;
292 /*****************************************************************************
293 * FreePicture: destroy a picture allocated with NewPicture
294 *****************************************************************************
295 * Destroy SharedMemZoned AND associated data. The picture normally will be
296 * unlocked in the Display() function except when the video output is closed
297 * before the picture is displayed.
298 *****************************************************************************/
299 static void FreePicture( vout_thread_t *p_vout, picture_t *p_pic )
301 if( p_pic->p_sys->p_image->Unlock() )
302 { /* Just a test to see the effect described above. REMOVE THIS */
303 msg_Err( p_vout, "unlocking shared memory failed, already unlocked" );
306 if( p_pic->p_sys->p_image->Close() )
308 msg_Err( p_vout, "closing shared memory failed. Leaking memory of %ul",
309 p_pic->p_sys->p_image->GetSize() );
312 delete p_pic->p_sys->p_image;
313 free( p_pic->p_sys );
316 /*****************************************************************************
317 * Display: Map p_image onto the screen
318 *****************************************************************************/
319 static void Display( vout_thread_t *p_vout, picture_t *p_pic )
321 uint32_t i_width, i_height, i_x, i_y;
322 uint32_t i_offset = 0;
324 vout_PlacePicture( p_vout, p_vout->p_sys->i_width,
325 p_vout->p_sys->i_height,
326 &i_x, &i_y, &i_width, &i_height );
327 msg_Dbg( p_vout, "PlacePicture at x_left = %d, y_left = %d, x_bottom = %d, y_bottom = %d",
328 i_x, i_y, i_width, i_height );
330 /* Currently the only pixel format supported is 32bpp RGBA.*/
331 p_vout->p_sys->p_screen->LockScreen();
333 /* Unlock the shared memory region first. */
334 if( p_pic->p_sys->p_image->Unlock() )
336 msg_Err( p_vout, "unlocking shared memory failed. Expect threading problems." );
339 p_vout->p_sys->p_screen->Blit( CascadePoint( (u32) i_x, (u32) i_y ), /* Place bitmap at */
340 (*p_pic->p_sys->p_image) , /* Image data */
341 (u32) i_offset, /* Offset in SharedMemoryZone */
342 (u32) i_width, /* Source bitmap width */
343 (u32) i_height, /* Source bitmap height */
344 (u32) p_vout->p_sys->i_screen_depth, /* Source pixel depth */
345 CascadeRect( (u32) i_x, (u32) i_y, (u32) i_width, (u32) i_height ) );
347 p_vout->p_sys->p_screen->UnlockScreen();