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vlc/modules/visualization/projectm.cpp
Steve Lhomme 5363279805 remove the $Id$ in the source code
2019-01-17 12:21:18 +01:00

394 lines
12 KiB
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/*****************************************************************************
* projectm.cpp: visualization module based on libprojectM
*****************************************************************************
* Copyright © 2009-2011 VLC authors and VideoLAN
*
* Authors: Rémi Duraffort <ivoire@videolan.org>
* Laurent Aimar
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <vlc_common.h>
#include <vlc_plugin.h>
#include <vlc_aout.h>
#include <vlc_vout_window.h>
#include <vlc_opengl.h>
#include <vlc_filter.h>
#include <vlc_rand.h>
#include <libprojectM/projectM.hpp>
#ifndef _WIN32
# include <locale.h>
#endif
#ifdef HAVE_XLOCALE_H
# include <xlocale.h>
#endif
/*****************************************************************************
* Module descriptor
*****************************************************************************/
static int Open ( vlc_object_t * );
static void Close ( vlc_object_t * );
#define CONFIG_TEXT N_("projectM configuration file")
#define CONFIG_LONGTEXT N_("File that will be used to configure the projectM " \
"module.")
#define PRESET_PATH_TXT N_("projectM preset path")
#define PRESET_PATH_LONGTXT N_("Path to the projectM preset directory")
#define TITLE_FONT_TXT N_("Title font")
#define TITLE_FONT_LONGTXT N_("Font used for the titles")
#define MENU_FONT_TXT N_("Font menu")
#define MENU_FONT_LONGTXT N_("Font used for the menus")
#define WIDTH_TEXT N_("Video width")
#define WIDTH_LONGTEXT N_("The width of the video window, in pixels.")
#define HEIGHT_TEXT N_("Video height")
#define HEIGHT_LONGTEXT N_("The height of the video window, in pixels.")
#define MESHX_TEXT N_("Mesh width")
#define MESHX_LONGTEXT N_("The width of the mesh, in pixels.")
#define MESHY_TEXT N_("Mesh height")
#define MESHY_LONGTEXT N_("The height of the mesh, in pixels.")
#define TEXTURE_TEXT N_("Texture size")
#define TEXTURE_LONGTEXT N_("The size of the texture, in pixels.")
#ifdef _WIN32
# define FONT_PATH "C:\\WINDOWS\\Fonts\\arial.ttf"
# define FONT_PATH_MENU "C:\\WINDOWS\\Fonts\\arial.ttf"
# define PRESET_PATH NULL
#else
# define FONT_PATH "/usr/share/fonts/truetype/ttf-dejavu/DejaVuSans.ttf"
# define FONT_PATH_MENU "/usr/share/fonts/truetype/ttf-dejavu/DejaVuSansMono.ttf"
# define PRESET_PATH "/usr/share/projectM/presets"
#endif
#ifdef DEFAULT_FONT_FILE
#undef FONT_PATH
#define FONT_PATH DEFAULT_FONT_FILE
#endif
#ifdef DEFAULT_MONOSPACE_FONT_FILE
#undef FONT_PATH_MENU
#define FONT_PATH_MENU DEFAULT_MONOSPACE_FONT_FILE
#endif
vlc_module_begin ()
set_shortname( N_("projectM"))
set_description( N_("libprojectM effect") )
set_capability( "visualization", 0 )
set_category( CAT_AUDIO )
set_subcategory( SUBCAT_AUDIO_VISUAL )
#ifndef HAVE_PROJECTM2
add_loadfile("projectm-config", "/usr/share/projectM/config.inp",
CONFIG_TEXT, CONFIG_LONGTEXT)
#else
add_directory("projectm-preset-path", PRESET_PATH,
PRESET_PATH_TXT, PRESET_PATH_LONGTXT)
add_loadfile("projectm-title-font", FONT_PATH,
TITLE_FONT_TXT, TITLE_FONT_LONGTXT)
add_loadfile("projectm-menu-font", FONT_PATH_MENU,
MENU_FONT_TXT, MENU_FONT_LONGTXT)
#endif
add_integer( "projectm-width", 800, WIDTH_TEXT, WIDTH_LONGTEXT,
false )
add_integer( "projectm-height", 500, HEIGHT_TEXT, HEIGHT_LONGTEXT,
false )
add_integer( "projectm-meshx", 32, MESHX_TEXT, MESHX_LONGTEXT,
false )
add_integer( "projectm-meshy", 24, MESHY_TEXT, MESHY_LONGTEXT,
false )
add_integer( "projectm-texture-size", 1024, TEXTURE_TEXT, TEXTURE_LONGTEXT,
false )
add_shortcut( "projectm" )
set_callbacks( Open, Close )
vlc_module_end ()
/*****************************************************************************
* Local prototypes
*****************************************************************************/
namespace {
struct filter_sys_t
{
/* */
vlc_thread_t thread;
/* Opengl */
vlc_gl_t *gl;
/* audio info */
int i_channels;
/* */
vlc_mutex_t lock;
bool b_quit;
float *p_buffer;
unsigned i_buffer_size;
unsigned i_nb_samples;
};
} // namespace
static block_t *DoWork( filter_t *, block_t * );
static void *Thread( void * );
/**
* Open the module
* @param p_this: the filter object
* @return VLC_SUCCESS or vlc error codes
*/
static int Open( vlc_object_t * p_this )
{
filter_t *p_filter = (filter_t *)p_this;
filter_sys_t *p_sys;
p_filter->p_sys = p_sys = (filter_sys_t*)malloc( sizeof( *p_sys ) );
if( !p_sys )
return VLC_ENOMEM;
/* Create the object for the thread */
p_sys->b_quit = false;
p_sys->i_channels = aout_FormatNbChannels( &p_filter->fmt_in.audio );
vlc_mutex_init( &p_sys->lock );
p_sys->p_buffer = NULL;
p_sys->i_buffer_size = 0;
p_sys->i_nb_samples = 0;
/* Create the OpenGL context */
vout_window_cfg_t cfg;
memset(&cfg, 0, sizeof (cfg));
cfg.width = var_CreateGetInteger( p_filter, "projectm-width" );
cfg.height = var_CreateGetInteger( p_filter, "projectm-height" );
p_sys->gl = vlc_gl_surface_Create( VLC_OBJECT(p_filter), &cfg, NULL );
if( p_sys->gl == NULL )
goto error;
/* Create the thread */
if( vlc_clone( &p_sys->thread, Thread, p_filter,
VLC_THREAD_PRIORITY_LOW ) )
{
vlc_gl_surface_Destroy( p_sys->gl );
goto error;
}
p_filter->fmt_in.audio.i_format = VLC_CODEC_FL32;
p_filter->fmt_out.audio = p_filter->fmt_in.audio;
p_filter->pf_audio_filter = DoWork;
return VLC_SUCCESS;
error:
vlc_mutex_destroy( &p_sys->lock );
free (p_sys );
return VLC_EGENERIC;
}
/**
* Close the module
* @param p_this: the filter object
*/
static void Close( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t *)p_this;
filter_sys_t *p_sys = reinterpret_cast<filter_sys_t *>( p_filter->p_sys );
/* Stop the thread
* XXX vlc_cleanup_push does not seems to work with C++ so no
* vlc_cancel()... */
vlc_mutex_lock( &p_sys->lock );
p_sys->b_quit = true;
vlc_mutex_unlock( &p_sys->lock );
vlc_join( p_sys->thread, NULL );
/* Free the ressources */
vlc_gl_surface_Destroy( p_sys->gl );
vlc_mutex_destroy( &p_sys->lock );
free( p_sys->p_buffer );
free( p_sys );
}
/**
* Do the actual work with the new sample
* @param p_aout: audio output object
* @param p_filter: filter object
* @param p_in_buf: input buffer
* @param p_out_buf: output buffer
*/
static block_t *DoWork( filter_t *p_filter, block_t *p_in_buf )
{
filter_sys_t *p_sys = reinterpret_cast<filter_sys_t *>( p_filter->p_sys );
vlc_mutex_lock( &p_sys->lock );
if( p_sys->i_buffer_size > 0 )
{
p_sys->i_nb_samples = __MIN( p_sys->i_buffer_size,
p_in_buf->i_nb_samples );
const float *p_src = (float*)p_in_buf->p_buffer;
for( unsigned i = 0; i < p_sys->i_nb_samples; i++ )
{
float v = 0;
for( int j = 0; j < p_sys->i_channels; j++ )
v += p_src[p_sys->i_channels * i + j];
p_sys->p_buffer[i] = v / p_sys->i_channels;
}
}
vlc_mutex_unlock( &p_sys->lock );
return p_in_buf;
}
/**
* ProjectM update thread which do the rendering
* @param p_this: the p_thread object
*/
static void *Thread( void *p_data )
{
filter_t *p_filter = (filter_t*)p_data;
filter_sys_t *p_sys = reinterpret_cast<filter_sys_t *>( p_filter->p_sys );
vlc_gl_t *gl = p_sys->gl;
locale_t loc;
locale_t oldloc;
projectM *p_projectm;
#ifndef HAVE_PROJECTM2
char *psz_config;
#else
char *psz_preset_path;
char *psz_title_font;
char *psz_menu_font;
projectM::Settings settings;
#endif
if( vlc_gl_MakeCurrent( gl ) != VLC_SUCCESS )
{
msg_Err( p_filter, "Can't attach gl context" );
return NULL;
}
/* Work-around the projectM locale bug */
loc = newlocale (LC_NUMERIC_MASK, "C", NULL);
oldloc = uselocale (loc);
/* Create the projectM object */
#ifndef HAVE_PROJECTM2
psz_config = var_InheritString( p_filter, "projectm-config" );
p_projectm = new projectM( psz_config );
free( psz_config );
#else
psz_preset_path = var_InheritString( p_filter, "projectm-preset-path" );
#ifdef _WIN32
if ( psz_preset_path == NULL )
psz_preset_path = config_GetSysPath(VLC_PKG_DATA_DIR, "visualization");
#endif
psz_title_font = var_InheritString( p_filter, "projectm-title-font" );
psz_menu_font = var_InheritString( p_filter, "projectm-menu-font" );
settings.meshX = var_InheritInteger( p_filter, "projectm-meshx" );
settings.meshY = var_InheritInteger( p_filter, "projectm-meshy" );
settings.fps = 35;
settings.textureSize = var_InheritInteger( p_filter, "projectm-texture-size" );
settings.windowWidth = var_InheritInteger( p_filter, "projectm-width" );
settings.windowHeight = var_CreateGetInteger( p_filter, "projectm-height" );
settings.presetURL = psz_preset_path;
settings.titleFontURL = psz_title_font;
settings.menuFontURL = psz_menu_font;
settings.smoothPresetDuration = 5;
settings.presetDuration = 30;
settings.beatSensitivity = 10;
settings.aspectCorrection = 1;
settings.easterEgg = 1;
settings.shuffleEnabled = 1;
settings.softCutRatingsEnabled= false;
p_projectm = new projectM( settings );
free( psz_menu_font );
free( psz_title_font );
free( psz_preset_path );
#endif /* HAVE_PROJECTM2 */
p_sys->i_buffer_size = p_projectm->pcm()->maxsamples;
p_sys->p_buffer = (float*)calloc( p_sys->i_buffer_size,
sizeof( float ) );
/* Choose a preset randomly or projectM will always show the first one */
if ( p_projectm->getPlaylistSize() > 0 )
p_projectm->selectPreset( (unsigned)vlc_mrand48() % p_projectm->getPlaylistSize() );
/* */
for( ;; )
{
const vlc_tick_t i_deadline = vlc_tick_now() + VLC_TICK_FROM_MS(20); /* 50 fps max */
/* Manage the events */
unsigned width, height;
bool quit;
if( vlc_gl_surface_CheckSize( gl, &width, &height ) )
p_projectm->projectM_resetGL( width, height );
/* Render the image and swap the buffers */
vlc_mutex_lock( &p_sys->lock );
if( p_sys->i_nb_samples > 0 )
{
p_projectm->pcm()->addPCMfloat( p_sys->p_buffer,
p_sys->i_nb_samples );
p_sys->i_nb_samples = 0;
}
quit = p_sys->b_quit;
vlc_mutex_unlock( &p_sys->lock );
if( quit )
break;
p_projectm->renderFrame();
/* */
vlc_tick_wait( i_deadline );
vlc_gl_Swap( gl );
}
delete p_projectm;
if (loc != (locale_t)0)
{
uselocale (oldloc);
freelocale (loc);
}
vlc_gl_ReleaseCurrent( gl );
return NULL;
}
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