1 /*****************************************************************************
3 *****************************************************************************
4 * Copyright (C) 2004 the VideoLAN team
7 * Authors: Cyril Deguet <asmax@videolan.org>
8 * Implementation of the winamp plugin MilkDrop
9 * based on projectM http://xmms-projectm.sourceforge.net
10 * and SciVi http://xmms-scivi.sourceforge.net
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
25 *****************************************************************************/
27 /*****************************************************************************
29 *****************************************************************************/
34 #include "video_init.h"
37 #include <vlc_input.h>
38 #include <vlc_playlist.h>
39 #include <vlc_plugin.h>
41 /*****************************************************************************
43 *****************************************************************************/
44 static int Open ( vlc_object_t * );
45 static void Close ( vlc_object_t * );
48 set_description( N_("GaLaktos visualization plugin") );
49 set_capability( "visualization", 0 );
50 set_callbacks( Open, Close );
51 add_shortcut( "galaktos" );
54 /*****************************************************************************
56 *****************************************************************************/
57 typedef struct aout_filter_sys_t
59 galaktos_thread_t *p_thread;
63 static void DoWork ( aout_instance_t *, aout_filter_t *, aout_buffer_t *,
66 static void* Thread ( vlc_object_t * );
68 static char *TitleGet( vlc_object_t * );
71 extern GLuint RenderTargetTextureID;
73 /*****************************************************************************
74 * Open: open a scope effect plugin
75 *****************************************************************************/
76 static int Open( vlc_object_t *p_this )
78 aout_filter_t *p_filter = (aout_filter_t *)p_this;
79 aout_filter_sys_t *p_sys;
80 galaktos_thread_t *p_thread;
82 if ( p_filter->input.i_format != VLC_FOURCC('f','l','3','2' )
83 || p_filter->output.i_format != VLC_FOURCC('f','l','3','2') )
85 msg_Warn( p_filter, "bad input or output format" );
88 if ( !AOUT_FMTS_SIMILAR( &p_filter->input, &p_filter->output ) )
90 msg_Warn( p_filter, "input and output formats are not similar" );
94 p_filter->pf_do_work = DoWork;
95 p_filter->b_in_place = 1;
97 /* Allocate structure */
98 p_sys = p_filter->p_sys = malloc( sizeof( aout_filter_sys_t ) );
100 /* Create galaktos thread */
101 p_sys->p_thread = p_thread =
102 vlc_object_create( p_filter, sizeof( galaktos_thread_t ) );
103 vlc_object_attach( p_thread, p_this );
106 var_Create( p_thread, "galaktos-width", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
107 var_Get( p_thread, "galaktos-width", &width );
108 var_Create( p_thread, "galaktos-height", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
109 var_Get( p_thread, "galaktos-height", &height );
111 p_thread->i_cur_sample = 0;
112 bzero( p_thread->p_data, 2*2*512 );
114 p_thread->i_width = 600;
115 p_thread->i_height = 600;
116 p_thread->b_fullscreen = 0;
117 galaktos_init( p_thread );
119 p_thread->i_channels = aout_FormatNbChannels( &p_filter->input );
121 p_thread->psz_title = TitleGet( VLC_OBJECT( p_filter ) );
123 if( vlc_thread_create( p_thread, "galaktos update thread", Thread,
124 VLC_THREAD_PRIORITY_LOW, false ) )
126 msg_Err( p_filter, "cannot lauch galaktos thread" );
127 free( p_thread->psz_title );
128 vlc_object_detach( p_thread );
129 vlc_object_release( p_thread );
137 /*****************************************************************************
138 * float to s16 conversion
139 *****************************************************************************/
140 static inline int16_t FloatToInt16( float f )
147 return (int16_t)( f * 32768.0 );
150 /*****************************************************************************
151 * DoWork: process samples buffer
152 *****************************************************************************
153 * This function queues the audio buffer to be processed by the galaktos thread
154 *****************************************************************************/
155 static void DoWork( aout_instance_t * p_aout, aout_filter_t * p_filter,
156 aout_buffer_t * p_in_buf, aout_buffer_t * p_out_buf )
161 galaktos_thread_t *p_thread = p_filter->p_sys->p_thread;
163 p_float = (float *)p_in_buf->p_buffer;
164 i_channels = p_thread->i_channels;
166 p_out_buf->i_nb_samples = p_in_buf->i_nb_samples;
167 p_out_buf->i_nb_bytes = p_in_buf->i_nb_bytes;
169 for( i_samples = p_in_buf->i_nb_samples; i_samples > 0; i_samples-- )
171 int i_cur_sample = p_thread->i_cur_sample;
173 p_thread->p_data[0][i_cur_sample] = FloatToInt16( p_float[0] );
176 p_thread->p_data[1][i_cur_sample] = FloatToInt16( p_float[1] );
178 p_float += i_channels;
180 if( ++(p_thread->i_cur_sample) == 512 )
182 addPCM( p_thread->p_data );
183 p_thread->i_cur_sample = 0;
188 /*****************************************************************************
190 *****************************************************************************/
191 static void* Thread( vlc_object_t *p_this )
193 galaktos_thread_t *p_thread = (galaktos_thread_t*)p_this;
196 double realfps=0,fpsstart=0;
201 /* Get on OpenGL provider */
203 (vout_thread_t *)vlc_object_create( p_this, VLC_OBJECT_OPENGL );
204 if( p_thread->p_opengl == NULL )
206 vlc_object_attach( p_thread->p_opengl, p_this );
208 /* Initialize vout parameters */
209 vout_InitFormat( &p_thread->p_opengl->fmt_in,
210 VLC_FOURCC('R','V','3','2'),
211 p_thread->i_width, p_thread->i_height, 1 );
212 p_thread->p_opengl->i_window_width = p_thread->i_width;
213 p_thread->p_opengl->i_window_height = p_thread->i_height;
214 p_thread->p_opengl->render.i_width = p_thread->i_width;
215 p_thread->p_opengl->render.i_height = p_thread->i_width;
216 p_thread->p_opengl->render.i_aspect = VOUT_ASPECT_FACTOR;
217 p_thread->p_opengl->b_scale = true;
218 p_thread->p_opengl->b_fullscreen = false;
219 p_thread->p_opengl->i_alignment = 0;
220 p_thread->p_opengl->fmt_in.i_sar_num = 1;
221 p_thread->p_opengl->fmt_in.i_sar_den = 1;
222 p_thread->p_opengl->fmt_render = p_thread->p_opengl->fmt_in;
225 module_Need( p_thread->p_opengl, "opengl provider", NULL, 0 );
226 if( p_thread->p_module == NULL )
228 msg_Err( p_thread, "unable to initialize OpenGL" );
229 vlc_object_detach( p_thread->p_opengl );
230 vlc_object_release( p_thread->p_opengl );
234 p_thread->p_opengl->pf_init( p_thread->p_opengl );
236 setup_opengl( p_thread->i_width, p_thread->i_height );
237 CreateRenderTarget(512, &RenderTargetTextureID, NULL);
239 timestart=mdate()/1000;
241 while( vlc_object_alive (p_thread) )
244 if( galaktos_update( p_thread ) == 1 )
246 vlc_object_kill( p_thread );
248 free( p_thread->psz_title );
249 p_thread->psz_title = NULL;
251 mtime_t now = mdate();
254 realfps=100/((now/1000-fpsstart)/1000);
255 // printf("%f\n",realfps);
259 timed=mspf-(now/1000-timestart);
260 // printf("%d,%d\n",time,mspf);
261 if (timed>0) msleep(1000*timed);
262 // printf("Limiter %d\n",(mdate()/1000-timestart));
263 timestart=mdate()/1000;
266 /* Free the openGL provider */
267 module_Unneed( p_thread->p_opengl, p_thread->p_module );
268 vlc_object_detach( p_thread->p_opengl );
269 vlc_object_release( p_thread->p_opengl );
273 /*****************************************************************************
274 * Close: close the plugin
275 *****************************************************************************/
276 static void Close( vlc_object_t *p_this )
278 aout_filter_t *p_filter = (aout_filter_t *)p_this;
279 aout_filter_sys_t *p_sys = p_filter->p_sys;
281 /* Stop galaktos Thread */
282 vlc_object_kill( p_sys->p_thread );
284 galaktos_done( p_sys->p_thread );
286 vlc_thread_join( p_sys->p_thread );
289 vlc_object_detach( p_sys->p_thread );
290 vlc_object_release( p_sys->p_thread );
295 static char *TitleGet( vlc_object_t *p_this )
297 char *psz_title = NULL;
298 input_thread_t *p_input =
299 vlc_object_find( p_this, VLC_OBJECT_INPUT, FIND_ANYWHERE );
303 char *psz_orig = input_item_GetURI( input_GetItem( p_input ) );
304 char *psz = strrchr( psz_orig, '/' );
316 psz_title = strdup( psz );
319 vlc_object_release( p_input );