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 *****************************************************************************/
32 #include <vlc_common.h>
33 #include <vlc_plugin.h>
35 #include <vlc_playlist.h>
38 #include <cascade/graphics/CascadeBitmap.h>
39 #include <cascade/graphics/CascadeScreen.h>
41 /*****************************************************************************
43 *****************************************************************************/
44 static int Create ( vlc_object_t * );
45 static void Destroy ( vlc_object_t * );
47 static int Init ( vout_thread_t * );
48 static void End ( vout_thread_t * );
49 static void Display ( vout_thread_t *, picture_t * );
51 static int NewPicture ( vout_thread_t *, picture_t * );
52 static void FreePicture( vout_thread_t *, picture_t * );
54 /*****************************************************************************
56 *****************************************************************************/
58 set_description( N_("HD1000 video output") )
59 set_capability( "video output", 100 )
60 add_shortcut( "hd1000v" )
61 set_callbacks( Create, Destroy )
64 /*****************************************************************************
65 * vout_sys_t: video output method descriptor
66 *****************************************************************************
67 * This structure is part of the video output thread descriptor.
68 * It describes the aa specific properties of an output thread.
69 *****************************************************************************/
72 uint32_t i_width; /* width of main window */
73 uint32_t i_height; /* height of main window */
74 uint32_t i_screen_depth;
75 bool b_double_buffered;
77 uint32_t u_current; /* Current output resolution. */
78 CascadeScreen *p_screen;
83 CascadeSharedMemZone *p_image;
86 /*****************************************************************************
87 * Create: allocates video thread output method
88 *****************************************************************************
89 * This function allocates and initializes a aa vout method.
90 *****************************************************************************/
91 static int Create( vlc_object_t *p_this )
93 vout_thread_t *p_vout = (vout_thread_t *)p_this;
94 bool b_double_buffered = false;
96 p_vout->p_sys = (struct vout_sys_t*) malloc( sizeof(struct vout_sys_t) );
97 if( p_vout->p_sys == NULL )
100 /* Allocate a screen for VLC vout. */
101 p_vout->p_sys->p_screen = new CascadeScreen();
102 if( p_vout->p_sys->p_screen == NULL )
104 msg_Err( p_vout, "unable to allocate screen" );
105 free( p_vout->p_sys );
109 p_vout->pf_init = Init;
110 p_vout->pf_end = End;
111 p_vout->pf_manage = NULL;
112 p_vout->pf_render = NULL;
113 p_vout->pf_display = Display;
115 /* Get current screen resolution */
116 msg_Dbg( p_vout, "number of screen resolutions supported %u",
117 p_vout->p_sys->p_screen->GetNumScreenResolutionsSupported() );
119 p_vout->p_sys->p_screen->GetCurrentScreenResolution( (u32) p_vout->p_sys->u_current );
120 p_vout->p_sys->p_screen->SetScreenResolution( (u32) p_vout->p_sys->u_current );
123 msg_Dbg( p_vout, "available screen resolutions:" );
124 for (u32 i=0; i<p_vout->p_sys->p_screen->GetNumScreenResolutionsSupported(); i++)
131 p_vout->p_sys->p_screen->GetSupportedScreenResolutionAt( i,
132 i_width, i_height, i_screen_depth, b_buffered);
133 msg_Dbg( p_vout, " screen index = %u, width = %u, height = %u, depth = %u, double buffered = %s",
134 i, i_width, i_height, i_screen_depth, (b_buffered ? "yes" : "no") );
138 p_vout->p_sys->p_screen->GetSupportedScreenResolutionAt( (u32) p_vout->p_sys->u_current,
139 (u32) p_vout->p_sys->i_width,
140 (u32) p_vout->p_sys->i_height,
141 (u8) p_vout->p_sys->i_screen_depth,
143 p_vout->p_sys->b_double_buffered = (bool) b_double_buffered;
144 msg_Dbg( p_vout, "using screen index = %u, width = %u, height = %u, depth = %u, double buffered = %d",
145 p_vout->p_sys->u_current, /* Current screen. */
146 p_vout->p_sys->i_width,
147 p_vout->p_sys->i_height,
148 p_vout->p_sys->i_screen_depth,
149 p_vout->p_sys->b_double_buffered );
154 static void Destroy( vlc_object_t *p_this )
156 vout_thread_t *p_vout = (vout_thread_t *)p_this;
158 delete p_vout->p_sys->p_screen;
159 free( p_vout->p_sys );
162 /*****************************************************************************
163 * Init: initialize video thread output method
164 *****************************************************************************/
165 static int Init( vout_thread_t *p_vout )
168 picture_t *p_pic = NULL;
170 I_OUTPUTPICTURES = 0;
172 p_vout->output.i_chroma = VLC_CODEC_RGB8;
173 p_vout->output.i_width = p_vout->p_sys->i_width;
174 p_vout->output.i_height = p_vout->p_sys->i_height;
175 p_vout->output.i_aspect = p_vout->p_sys->i_width
176 * VOUT_ASPECT_FACTOR / p_vout->p_sys->i_height;
178 /* Only RGBA 32bpp is supported by output device. */
179 switch( p_vout->p_sys->i_screen_depth )
181 case 8: /* FIXME: set the palette */
182 p_vout->output.i_chroma = VLC_CODEC_RGB8; break;
184 p_vout->output.i_chroma = VLC_CODEC_RGB15; break;
186 p_vout->output.i_chroma = VLC_CODEC_RGB16; break;
188 p_vout->output.i_chroma = VLC_CODEC_RGB24; break;
190 p_vout->output.i_chroma = VLC_CODEC_RGB32; break;
192 msg_Err( p_vout, "unknown screen depth %i",
193 p_vout->p_sys->i_screen_depth );
197 /* Find an empty picture slot */
198 for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
200 if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
202 p_pic = p_vout->p_picture + i_index;
207 if( p_pic == NULL || NewPicture( p_vout, p_pic ) )
212 /* Allocate the picture */
213 p_pic->p->i_lines = p_vout->p_sys->i_height;
214 p_pic->p->i_visible_lines = p_vout->p_sys->i_height;
215 p_pic->p->i_pitch = p_vout->p_sys->i_width;
216 p_pic->p->i_pixel_pitch = 1;
217 p_pic->p->i_visible_pitch = p_vout->p_sys->i_width;
220 p_pic->i_status = DESTROYED_PICTURE;
221 p_pic->i_type = DIRECT_PICTURE;
223 PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
229 /*****************************************************************************
230 * End: terminate video thread output method
231 *****************************************************************************/
232 static void End( vout_thread_t *p_vout )
236 /* Free the direct buffers we allocated */
237 for( i_index = I_OUTPUTPICTURES ; i_index ; )
240 FreePicture( p_vout, PP_OUTPUTPICTURE[ i_index ] );
244 /*****************************************************************************
245 * NewPicture: Allocate shared memory zone for video output
246 *****************************************************************************/
247 static int NewPicture( vout_thread_t *p_vout, picture_t *p_pic )
249 CascadeDims p_dims = p_vout->p_sys->p_screen->GetDims();
251 p_pic->p_sys = (picture_sys_t *) malloc( sizeof( picture_sys_t ) );
252 if( p_pic->p_sys == NULL )
257 /* Fill in picture_t fields */
258 picture_Setup( p_pic, p_vout->output.i_chroma,
259 p_vout->output.i_width, p_vout->output.i_height,
260 p_vout->output.i_aspect * p_vout->output.i_height,
261 VOUT_ASPECT_FACTOR * p_vout->output.i_width );
263 p_pic->p_sys->p_image = new CascadeSharedMemZone();
264 if( p_pic->p_sys->p_image == NULL )
266 free( p_pic->p_sys );
270 if( p_pic->p_sys->p_image->Open( "vlc_hd1000v", p_vout->output.i_width *
271 p_vout->output.i_height * p_vout->p_sys->i_screen_depth,
274 msg_Err( p_vout, "failed to allocate shared memory" );
275 free( p_pic->p_sys );
279 p_pic->p->i_lines = p_vout->output.i_height;
280 p_pic->p->i_visible_lines = p_vout->output.i_height;
281 p_pic->p->p_pixels = (uint8_t*) p_pic->p_sys->p_image->MapLock();
282 p_pic->p->i_pitch = p_vout->p_sys->i_screen_depth;
283 p_pic->p->i_visible_pitch = p_pic->p->i_pixel_pitch
284 * p_vout->output.i_width;
289 /*****************************************************************************
290 * FreePicture: destroy a picture allocated with NewPicture
291 *****************************************************************************
292 * Destroy SharedMemZoned AND associated data. The picture normally will be
293 * unlocked in the Display() function except when the video output is closed
294 * before the picture is displayed.
295 *****************************************************************************/
296 static void FreePicture( vout_thread_t *p_vout, picture_t *p_pic )
298 if( p_pic->p_sys->p_image->Unlock() )
299 { /* Just a test to see the effect described above. REMOVE THIS */
300 msg_Err( p_vout, "unlocking shared memory failed, already unlocked" );
303 if( p_pic->p_sys->p_image->Close() )
305 msg_Err( p_vout, "closing shared memory failed. Leaking memory of %ul",
306 p_pic->p_sys->p_image->GetSize() );
309 delete p_pic->p_sys->p_image;
310 free( p_pic->p_sys );
313 /*****************************************************************************
314 * Display: Map p_image onto the screen
315 *****************************************************************************/
316 static void Display( vout_thread_t *p_vout, picture_t *p_pic )
318 uint32_t i_width, i_height, i_x, i_y;
319 uint32_t i_offset = 0;
321 vout_PlacePicture( p_vout, p_vout->p_sys->i_width,
322 p_vout->p_sys->i_height,
323 &i_x, &i_y, &i_width, &i_height );
324 msg_Dbg( p_vout, "PlacePicture at x_left = %d, y_left = %d, x_bottom = %d, y_bottom = %d",
325 i_x, i_y, i_width, i_height );
327 /* Currently the only pixel format supported is 32bpp RGBA.*/
328 p_vout->p_sys->p_screen->LockScreen();
330 /* Unlock the shared memory region first. */
331 if( p_pic->p_sys->p_image->Unlock() )
333 msg_Err( p_vout, "unlocking shared memory failed. Expect threading problems." );
336 p_vout->p_sys->p_screen->Blit( CascadePoint( (u32) i_x, (u32) i_y ), /* Place bitmap at */
337 (*p_pic->p_sys->p_image) , /* Image data */
338 (u32) i_offset, /* Offset in SharedMemoryZone */
339 (u32) i_width, /* Source bitmap width */
340 (u32) i_height, /* Source bitmap height */
341 (u32) p_vout->p_sys->i_screen_depth, /* Source pixel depth */
342 CascadeRect( (u32) i_x, (u32) i_y, (u32) i_width, (u32) i_height ) );
344 p_vout->p_sys->p_screen->UnlockScreen();