1 /*****************************************************************************
2 * vout_dummy.c: Dummy video output display method for testing purposes
3 *****************************************************************************
4 * Copyright (C) 2000, 2001 VideoLAN
5 * $Id: vout.c,v 1.3 2002/11/18 18:05:13 sam Exp $
7 * Authors: Samuel Hocevar <sam@zoy.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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
27 #include <stdlib.h> /* free() */
28 #include <string.h> /* strerror() */
33 #define DUMMY_WIDTH 16
34 #define DUMMY_HEIGHT 16
35 #define DUMMY_MAX_DIRECTBUFFERS 10
37 /*****************************************************************************
39 *****************************************************************************/
40 static int Init ( vout_thread_t * );
41 static void End ( vout_thread_t * );
42 static int Manage ( vout_thread_t * );
43 static void Render ( vout_thread_t *, picture_t * );
44 static void Display ( vout_thread_t *, picture_t * );
46 /*****************************************************************************
47 * OpenVideo: activates dummy video thread output method
48 *****************************************************************************
49 * This function initializes a dummy vout method.
50 *****************************************************************************/
51 int E_(OpenVideo) ( vlc_object_t *p_this )
53 vout_thread_t * p_vout = (vout_thread_t *)p_this;
55 p_vout->pf_init = Init;
57 p_vout->pf_manage = Manage;
58 p_vout->pf_render = Render;
59 p_vout->pf_display = Display;
64 /*****************************************************************************
65 * Init: initialize dummy video thread output method
66 *****************************************************************************/
67 static int Init( vout_thread_t *p_vout )
69 int i_index, i_chroma;
72 vlc_bool_t b_chroma = 0;
74 psz_chroma = config_GetPsz( p_vout, "dummy-chroma" );
77 if( strlen( psz_chroma ) >= 4 )
79 i_chroma = VLC_FOURCC( psz_chroma[0], psz_chroma[1],
80 psz_chroma[2], psz_chroma[3] );
89 /* Initialize the output structure */
92 msg_Dbg( p_vout, "forcing chroma 0x%.8x (%4.4s)",
93 i_chroma, (char*)&i_chroma );
94 p_vout->output.i_chroma = i_chroma;
95 p_vout->output.i_width = p_vout->render.i_width;
96 p_vout->output.i_height = p_vout->render.i_height;
97 p_vout->output.i_aspect = p_vout->render.i_aspect;
101 p_vout->output.i_chroma = VLC_FOURCC('R','V','1','6');
102 p_vout->output.i_rmask = 0xf800;
103 p_vout->output.i_gmask = 0x07e0;
104 p_vout->output.i_bmask = 0x001f;
105 p_vout->output.i_width = p_vout->render.i_width;
106 p_vout->output.i_height = p_vout->render.i_height;
107 p_vout->output.i_aspect = p_vout->render.i_aspect;
110 /* Try to initialize DUMMY_MAX_DIRECTBUFFERS direct buffers */
111 while( I_OUTPUTPICTURES < DUMMY_MAX_DIRECTBUFFERS )
115 /* Find an empty picture slot */
116 for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
118 if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
120 p_pic = p_vout->p_picture + i_index;
125 /* Allocate the picture */
131 vout_AllocatePicture( p_vout, p_pic, p_vout->output.i_width,
132 p_vout->output.i_height,
133 p_vout->output.i_chroma );
135 if( p_pic->i_planes == 0 )
140 p_pic->i_status = DESTROYED_PICTURE;
141 p_pic->i_type = DIRECT_PICTURE;
143 PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
151 /*****************************************************************************
152 * End: terminate dummy video thread output method
153 *****************************************************************************/
154 static void End( vout_thread_t *p_vout )
158 /* Free the fake output buffers we allocated */
159 for( i_index = I_OUTPUTPICTURES ; i_index ; )
162 free( PP_OUTPUTPICTURE[ i_index ]->p_data_orig );
166 /*****************************************************************************
167 * Manage: handle dummy events
168 *****************************************************************************
169 * This function should be called regularly by video output thread. It manages
170 * console events. It returns a non null value on error.
171 *****************************************************************************/
172 static int Manage( vout_thread_t *p_vout )
177 /*****************************************************************************
178 * Render: render previously calculated output
179 *****************************************************************************/
180 static void Render( vout_thread_t *p_vout, picture_t *p_pic )
182 /* No need to do anything, the fake direct buffers stay as they are */
185 /*****************************************************************************
186 * Display: displays previously rendered output
187 *****************************************************************************/
188 static void Display( vout_thread_t *p_vout, picture_t *p_pic )
190 /* No need to do anything, the fake direct buffers stay as they are */