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 #define WIDTH_TEXT N_("Video width")
49 #define WIDTH_LONGTEXT N_("The width of the video window, in pixels.")
51 #define HEIGHT_TEXT N_("Video height")
52 #define HEIGHT_LONGTEXT N_("The height of the video window, in pixels.")
56 set_description( N_("GaLaktos visualization") )
57 set_capability( "visualization", 0 )
58 set_callbacks( Open, Close )
59 add_shortcut( "galaktos" )
60 add_integer( "galaktos-width", 640, NULL, WIDTH_TEXT, WIDTH_LONGTEXT,
62 add_integer( "galaktos-height", 480, NULL, HEIGHT_TEXT, HEIGHT_LONGTEXT,
66 /*****************************************************************************
68 *****************************************************************************/
69 struct aout_filter_sys_t
71 galaktos_thread_t *p_thread;
75 static void DoWork ( aout_instance_t *, aout_filter_t *, aout_buffer_t *,
78 static void* Thread ( vlc_object_t * );
80 static char *TitleGet( vlc_object_t * );
83 extern GLuint RenderTargetTextureID;
85 /*****************************************************************************
86 * Open: open a scope effect plugin
87 *****************************************************************************/
88 static int Open( vlc_object_t *p_this )
90 aout_filter_t *p_filter = (aout_filter_t *)p_this;
91 aout_filter_sys_t *p_sys;
92 galaktos_thread_t *p_thread;
94 if( p_filter->input.i_format != VLC_CODEC_FL32 ||
95 p_filter->output.i_format != VLC_CODEC_FL32 )
97 msg_Warn( p_filter, "bad input or output format" );
100 if ( !AOUT_FMTS_SIMILAR( &p_filter->input, &p_filter->output ) )
102 msg_Warn( p_filter, "input and output formats are not similar" );
106 p_filter->pf_do_work = DoWork;
107 p_filter->b_in_place = 1;
109 /* Allocate structure */
110 p_sys = p_filter->p_sys = malloc( sizeof( aout_filter_sys_t ) );
112 /* Create galaktos thread */
113 p_sys->p_thread = p_thread =
114 vlc_object_create( p_filter, sizeof( galaktos_thread_t ) );
115 vlc_object_attach( p_thread, p_this );
117 p_thread->i_cur_sample = 0;
118 bzero( p_thread->p_data, 2*2*512 );
120 p_thread->i_width = var_CreateGetInteger( p_thread, "galaktos-width" );
121 p_thread->i_height = var_CreateGetInteger( p_thread, "galaktos-height" );
122 p_thread->b_fullscreen = 0;
123 galaktos_init( p_thread );
125 p_thread->i_channels = aout_FormatNbChannels( &p_filter->input );
127 p_thread->psz_title = TitleGet( VLC_OBJECT( p_filter ) );
129 if( vlc_thread_create( p_thread, "galaktos update thread", Thread,
130 VLC_THREAD_PRIORITY_LOW ) )
132 msg_Err( p_filter, "cannot lauch galaktos thread" );
133 free( p_thread->psz_title );
134 vlc_object_detach( p_thread );
135 vlc_object_release( p_thread );
143 /*****************************************************************************
144 * float to s16 conversion
145 *****************************************************************************/
146 static inline int16_t FloatToInt16( float f )
153 return (int16_t)( f * 32768.0 );
156 /*****************************************************************************
157 * DoWork: process samples buffer
158 *****************************************************************************
159 * This function queues the audio buffer to be processed by the galaktos thread
160 *****************************************************************************/
161 static void DoWork( aout_instance_t * p_aout, aout_filter_t * p_filter,
162 aout_buffer_t * p_in_buf, aout_buffer_t * p_out_buf )
167 galaktos_thread_t *p_thread = p_filter->p_sys->p_thread;
169 p_float = (float *)p_in_buf->p_buffer;
170 i_channels = p_thread->i_channels;
172 p_out_buf->i_nb_samples = p_in_buf->i_nb_samples;
173 p_out_buf->i_nb_bytes = p_in_buf->i_nb_bytes;
175 for( i_samples = p_in_buf->i_nb_samples; i_samples > 0; i_samples-- )
177 int i_cur_sample = p_thread->i_cur_sample;
179 p_thread->p_data[0][i_cur_sample] = FloatToInt16( p_float[0] );
182 p_thread->p_data[1][i_cur_sample] = FloatToInt16( p_float[1] );
184 p_float += i_channels;
186 if( ++(p_thread->i_cur_sample) == 512 )
188 addPCM( p_thread->p_data );
189 p_thread->i_cur_sample = 0;
194 /*****************************************************************************
196 *****************************************************************************/
197 static void* Thread( vlc_object_t *p_this )
199 galaktos_thread_t *p_thread = (galaktos_thread_t*)p_this;
202 double realfps=0,fpsstart=0;
206 int canc = vlc_savecancel ();
208 /* Get on OpenGL provider */
210 (vout_thread_t *)vlc_object_create( p_this, sizeof( vout_thread_t ) );
211 if( p_thread->p_opengl == NULL )
213 vlc_restorecancel (canc);
216 vlc_object_attach( p_thread->p_opengl, p_this );
218 /* Initialize vout parameters */
219 video_format_Setup( &p_thread->p_opengl->fmt_in,
220 VLC_CODEC_RGB32, p_thread->i_width, p_thread->i_height, 1 );
221 p_thread->p_opengl->i_window_width = p_thread->i_width;
222 p_thread->p_opengl->i_window_height = p_thread->i_height;
223 p_thread->p_opengl->render.i_width = p_thread->i_width;
224 p_thread->p_opengl->render.i_height = p_thread->i_width;
225 p_thread->p_opengl->render.i_aspect = VOUT_ASPECT_FACTOR;
226 p_thread->p_opengl->b_fullscreen = false;
227 p_thread->p_opengl->i_alignment = 0;
228 p_thread->p_opengl->fmt_in.i_sar_num = 1;
229 p_thread->p_opengl->fmt_in.i_sar_den = 1;
230 p_thread->p_opengl->fmt_render = p_thread->p_opengl->fmt_in;
233 module_need( p_thread->p_opengl, "opengl provider", NULL, false );
234 if( p_thread->p_module == NULL )
236 msg_Err( p_thread, "unable to initialize OpenGL" );
237 vlc_object_detach( p_thread->p_opengl );
238 vlc_object_release( p_thread->p_opengl );
239 vlc_restorecancel (canc);
243 p_thread->p_opengl->pf_init( p_thread->p_opengl );
245 setup_opengl( p_thread->i_width, p_thread->i_height );
246 CreateRenderTarget(512, &RenderTargetTextureID, NULL);
248 timestart=mdate()/1000;
250 while( vlc_object_alive (p_thread) )
253 if( galaktos_update( p_thread ) == 1 )
255 vlc_object_kill( p_thread );
257 free( p_thread->psz_title );
258 p_thread->psz_title = NULL;
260 mtime_t now = mdate();
263 realfps=100/((now/1000-fpsstart)/1000);
264 // printf("%f\n",realfps);
268 timed=mspf-(now/1000-timestart);
269 // printf("%d,%d\n",time,mspf);
270 if (timed>0) msleep(1000*timed);
271 // printf("Limiter %d\n",(mdate()/1000-timestart));
272 timestart=mdate()/1000;
275 /* Free the openGL provider */
276 module_unneed( p_thread->p_opengl, p_thread->p_module );
277 vlc_object_detach( p_thread->p_opengl );
278 vlc_object_release( p_thread->p_opengl );
279 vlc_restorecancel (canc);
283 /*****************************************************************************
284 * Close: close the plugin
285 *****************************************************************************/
286 static void Close( vlc_object_t *p_this )
288 aout_filter_t *p_filter = (aout_filter_t *)p_this;
289 aout_filter_sys_t *p_sys = p_filter->p_sys;
291 /* Stop galaktos Thread */
292 vlc_object_kill( p_sys->p_thread );
294 galaktos_done( p_sys->p_thread );
296 vlc_thread_join( p_sys->p_thread );
299 vlc_object_detach( p_sys->p_thread );
300 vlc_object_release( p_sys->p_thread );
305 static char *TitleGet( vlc_object_t *p_this )
307 char *psz_title = NULL;
308 input_thread_t *p_input =
309 vlc_object_find( p_this, VLC_OBJECT_INPUT, FIND_ANYWHERE );
313 char *psz_orig = input_item_GetURI( input_GetItem( p_input ) );
314 char *psz = strrchr( psz_orig, '/' );
326 psz_title = strdup( psz );
329 vlc_object_release( p_input );