]> git.sesse.net Git - vlc/blobdiff - modules/visualization/projectm.cpp
Give only once the same PCM buffer to projectM.
[vlc] / modules / visualization / projectm.cpp
index 0316601f083772e69b09ebdfe44ecb55c39bf017..2e173b3c3ce6b3bc8fff09980a73df35fabd2e3d 100644 (file)
@@ -29,6 +29,8 @@
 #include <vlc_plugin.h>
 #include <vlc_aout.h>
 #include <vlc_vout.h>
+#include <vlc_vout_wrapper.h>
+#include <vlc_filter.h>
 
 #include <libprojectM/projectM.hpp>
 
@@ -52,14 +54,14 @@ static void Close        ( vlc_object_t * );
 vlc_module_begin ()
     set_shortname( N_("projectM"))
     set_description( N_("libprojectM effect") )
-    set_capability( "visualization", 0 )
+    set_capability( "visualization2", 0 )
     set_category( CAT_AUDIO )
     set_subcategory( SUBCAT_AUDIO_VISUAL )
     add_file( "projectm-config", "/usr/share/projectM/config.inp", NULL,
                 CONFIG_TEXT, CONFIG_LONGTEXT, true )
-    add_integer( "projectm-width", 720, NULL, WIDTH_TEXT, WIDTH_LONGTEXT,
+    add_integer( "projectm-width", 800, NULL, WIDTH_TEXT, WIDTH_LONGTEXT,
                  false )
-    add_integer( "projectm-height", 480, NULL, HEIGHT_TEXT, HEIGHT_LONGTEXT,
+    add_integer( "projectm-height", 640, NULL, HEIGHT_TEXT, HEIGHT_LONGTEXT,
                  false )
     add_shortcut( "projectm" )
     set_callbacks( Open, Close )
@@ -69,13 +71,16 @@ vlc_module_end ()
 /*****************************************************************************
  * Local prototypes
  *****************************************************************************/
-typedef struct
+struct filter_sys_t
 {
-    VLC_COMMON_MEMBERS
+    /* */
+    vlc_thread_t thread;
+    vlc_sem_t    ready;
+    bool         b_error;
 
-    /* video output module and opengl provider */
-    vout_thread_t *p_opengl;
-    module_t      *p_module;
+    /* Opengl */
+    vout_thread_t  *p_vout;
+    vout_display_t *p_vd;
 
     /* libprojectM objects */
     projectM      *p_projectm;
@@ -87,67 +92,16 @@ typedef struct
 
     /* audio info */
     int i_channels;
+
+    vlc_mutex_t lock;
     float *p_buffer;
     int   i_buffer_size;
     int   i_nb_samples;
-
-    vlc_mutex_t lock;
-} projectm_thread_t;
-
-
-struct aout_filter_sys_t
-{
-    projectm_thread_t *p_thread;
 };
 
 
-static void DoWork( aout_instance_t *, aout_filter_t *, aout_buffer_t *,
-                    aout_buffer_t * );
-static void* Thread( vlc_object_t * );
-
-
-/**
- * Init the openGL context
- * p_thread: projectm thread object
- * @return VLC_SUCCESS or vlc error codes
- */
-static int initOpenGL( projectm_thread_t *p_thread )
-{
-    p_thread->p_opengl = (vout_thread_t *)vlc_object_create( p_thread,
-                                                    sizeof( vout_thread_t ) );
-    if( !p_thread->p_opengl )
-        return VLC_ENOMEM;
-
-    vlc_object_attach( p_thread->p_opengl, p_thread );
-
-    /* Initialize the opengl object */
-    video_format_Setup( &p_thread->p_opengl->fmt_in, VLC_CODEC_RGB32,
-                        p_thread->i_width, p_thread->i_height, 1 );
-    p_thread->p_opengl->i_window_width = p_thread->i_width;
-    p_thread->p_opengl->i_window_height = p_thread->i_height;
-    p_thread->p_opengl->render.i_width = p_thread->i_width;
-    p_thread->p_opengl->render.i_height = p_thread->i_height;
-    p_thread->p_opengl->render.i_aspect = VOUT_ASPECT_FACTOR;
-    p_thread->p_opengl->b_fullscreen = false;
-    p_thread->p_opengl->i_alignment = 0;
-    p_thread->p_opengl->fmt_in.i_sar_num = 1;
-    p_thread->p_opengl->fmt_in.i_sar_den = 1;
-    p_thread->p_opengl->fmt_render = p_thread->p_opengl->fmt_in;
-
-    /* Ask for the opengl provider */
-    p_thread->p_module = module_need( p_thread->p_opengl, "opengl provider",
-                                      NULL, false );
-    if( !p_thread->p_module )
-    {
-        msg_Err( p_thread, "unable to initialize OpenGL" );
-        vlc_object_detach( p_thread->p_opengl );
-        vlc_object_release( p_thread->p_opengl );
-        return VLC_EGENERIC;
-    }
-
-    return VLC_SUCCESS;
-}
-
+static block_t *DoWork( filter_t *, block_t * );
+static void *Thread( void * );
 
 /**
  * Open the module
@@ -156,66 +110,57 @@ static int initOpenGL( projectm_thread_t *p_thread )
  */
 static int Open( vlc_object_t * p_this )
 {
-    aout_filter_t       *p_filter = (aout_filter_t *)p_this;
-    aout_filter_sys_t   *p_sys;
-    projectm_thread_t   *p_thread;
+    filter_t     *p_filter = (filter_t *)p_this;
+    filter_sys_t *p_sys;
 
     /* Test the audio format */
-    if( p_filter->input.i_format != VLC_CODEC_FL32 ||
-        p_filter->output.i_format != VLC_CODEC_FL32 )
+    if( p_filter->fmt_in.audio.i_format != VLC_CODEC_FL32 ||
+        p_filter->fmt_out.audio.i_format != VLC_CODEC_FL32 )
     {
         msg_Warn( p_filter, "bad input or output format" );
         return VLC_EGENERIC;
     }
-    if( !AOUT_FMTS_SIMILAR( &p_filter->input, &p_filter->output ) )
+    if( !AOUT_FMTS_SIMILAR( &p_filter->fmt_in.audio, &p_filter->fmt_out.audio ) )
     {
         msg_Warn( p_filter, "input and outut are not similar" );
         return VLC_EGENERIC;
     }
 
-    p_filter->pf_do_work = DoWork;
-    p_filter->b_in_place = true;
+    p_filter->pf_audio_filter = DoWork;
 
-    p_sys = p_filter->p_sys = (aout_filter_sys_t*)malloc( sizeof( *p_sys ) );
+    p_sys = p_filter->p_sys = (filter_sys_t*)malloc( sizeof( *p_sys ) );
     if( !p_sys )
         return VLC_ENOMEM;
 
     /* Create the object for the thread */
-    p_sys->p_thread = p_thread = (projectm_thread_t *)
-                    vlc_object_create( p_filter, sizeof( projectm_thread_t ) );
-    vlc_object_attach( p_sys->p_thread, p_filter );
-    p_thread->i_width  = var_CreateGetInteger( p_filter, "projectm-width" );
-    p_thread->i_height = var_CreateGetInteger( p_filter, "projectm-height" );
-
-    /* Create the openGL provider */
-    int i_ret = initOpenGL( p_sys->p_thread );
-    if( i_ret != VLC_SUCCESS )
-    {
-        vlc_object_detach( p_sys->p_thread );
-        vlc_object_release( p_sys->p_thread );
-        free( p_sys );
-        return i_ret;
-    }
-
-    p_thread->i_channels = aout_FormatNbChannels( &p_filter->input );
-    p_thread->psz_config = var_CreateGetString( p_filter, "projectm-config" );
-    vlc_mutex_init( &p_thread->lock );
-    p_thread->p_buffer = NULL;
-    p_thread->i_buffer_size = 0;
-    p_thread->i_nb_samples = 0;
+    vlc_sem_init( &p_sys->ready, 0 );
+    p_sys->b_error  = false;
+    p_sys->i_width  = var_CreateGetInteger( p_filter, "projectm-width" );
+    p_sys->i_height = var_CreateGetInteger( p_filter, "projectm-height" );
+    p_sys->i_channels = aout_FormatNbChannels( &p_filter->fmt_in.audio );
+    p_sys->psz_config = var_CreateGetString( p_filter, "projectm-config" );
+    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 thread */
-    if( vlc_thread_create( p_thread, "projectm update thread", Thread,
-                           VLC_THREAD_PRIORITY_LOW ) )
+    if( vlc_clone( &p_sys->thread, Thread, p_filter, VLC_THREAD_PRIORITY_LOW ) )
+        goto error;
+
+    vlc_sem_wait( &p_sys->ready );
+    if( p_sys->b_error )
     {
-        msg_Err( p_filter, "cannot launch the projectm thread" );
-        vlc_object_detach( p_thread );
-        vlc_object_release( p_thread );
-        free (p_sys );
-        return VLC_EGENERIC;
+        vlc_join( p_sys->thread, NULL );
+        goto error;
     }
 
     return VLC_SUCCESS;
+
+error:
+    vlc_sem_destroy( &p_sys->ready );
+    free (p_sys );
+    return VLC_EGENERIC;
 }
 
 
@@ -225,22 +170,18 @@ static int Open( vlc_object_t * p_this )
  */
 static void Close( vlc_object_t *p_this )
 {
-    aout_filter_t     *p_filter = (aout_filter_t *)p_this;
-    aout_filter_sys_t *p_sys = p_filter->p_sys;
-    projectm_thread_t *p_thread = p_sys->p_thread;
+    filter_t     *p_filter = (filter_t *)p_this;
+    filter_sys_t *p_sys = p_filter->p_sys;
 
     /* Stop the thread */
-    vlc_object_kill( p_thread );
-    vlc_thread_join( p_thread );
+    vlc_cancel( p_sys->thread );
+    vlc_join( p_sys->thread, NULL );
 
     /* Free the ressources */
-    vlc_mutex_destroy( &p_thread->lock );
-    free( p_thread->p_buffer );
-    free( p_thread->psz_config );
-
-    vlc_object_detach( p_thread );
-    vlc_object_release( p_thread );
-
+    vlc_sem_destroy( &p_sys->ready );
+    vlc_mutex_destroy( &p_sys->lock );
+    free( p_sys->p_buffer );
+    free( p_sys->psz_config );
     free( p_sys );
 }
 
@@ -252,27 +193,58 @@ static void Close( vlc_object_t *p_this )
  * @param p_in_buf: input buffer
  * @param p_out_buf: output buffer
  */
-static void DoWork( aout_instance_t *p_aout, aout_filter_t *p_filter,
-                    aout_buffer_t *p_in_buf, aout_buffer_t *p_out_buf )
+static block_t *DoWork( filter_t *p_filter, block_t *p_in_buf )
 {
-    projectm_thread_t *p_thread = p_filter->p_sys->p_thread;
+    filter_sys_t *p_sys = p_filter->p_sys;
 
-    p_out_buf->i_nb_samples = p_in_buf->i_nb_samples;
-    p_out_buf->i_nb_bytes = p_in_buf->i_nb_bytes;
+    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( int 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;
+}
+
+/**
+ * Variable callback for the dummy vout
+ */
+static int VoutCallback( vlc_object_t *p_vout, char const *psz_name,
+                         vlc_value_t oldv, vlc_value_t newv, void *p_data )
+{
+    vout_display_t *p_vd = (vout_display_t*)p_data;
 
-    vlc_mutex_lock( &p_thread->lock );
-    if( p_thread->i_buffer_size > 0 )
+    if( !strcmp(psz_name, "fullscreen") )
     {
-        p_thread->p_buffer[0] = 0;
-        p_thread->i_nb_samples = __MIN( p_thread->i_buffer_size,
-                                        p_in_buf->i_nb_samples );
-        for( int i = 0; i < p_thread->i_nb_samples; i++ )
-            p_thread->p_buffer[i] = p_in_buf->p_buffer[i];
+        vout_SetDisplayFullscreen( p_vd, newv.b_bool );
     }
+}
 
-    vlc_mutex_unlock( &p_thread->lock );
+/**
+ * Clean up function when Thread() is cancelled.
+ */
+static void ThreadCleanup( void *p_data )
+{
+    filter_t     *p_filter = (filter_t*)p_data;
+    filter_sys_t *p_sys = p_filter->p_sys;
+
+    /* Cleanup */
+    delete p_sys->p_projectm;
 
-    return;
+    /* Free the openGL provider */
+    vout_DeleteDisplay( p_sys->p_vd, NULL );
+    vlc_object_release( p_sys->p_vout );
 }
 
 
@@ -280,54 +252,115 @@ static void DoWork( aout_instance_t *p_aout, aout_filter_t *p_filter,
  * ProjectM update thread which do the rendering
  * @param p_this: the p_thread object
  */
-static void* Thread( vlc_object_t *p_this )
+static void *Thread( void *p_data )
 {
-    /* we don't want to be interupted in this thread */
+    filter_t     *p_filter = (filter_t*)p_data;
+    filter_sys_t *p_sys = p_filter->p_sys;
     int cancel = vlc_savecancel();
-    projectm_thread_t *p_thread = (projectm_thread_t *)p_this;
+    video_format_t fmt;
+    vout_opengl_t *gl;
+
+    /* Create the openGL provider */
+    p_sys->p_vout =
+        (vout_thread_t *)vlc_object_create( p_filter, sizeof(vout_thread_t) );
+    if( !p_sys->p_vout )
+        goto error;
+
+    /* */
+    video_format_Init( &fmt, 0 );
+    video_format_Setup( &fmt, VLC_CODEC_RGB32,
+                        p_sys->i_width, p_sys->i_height, 0 );
+    fmt.i_sar_num = 1;
+    fmt.i_sar_den = 1;
+
+    vout_display_state_t state;
+    memset( &state, 0, sizeof(state) );
+    state.cfg.display.sar.num = 1;
+    state.cfg.display.sar.den = 1;
+    state.cfg.is_display_filled = true;
+    state.cfg.zoom.num = 1;
+    state.cfg.zoom.den = 1;
+    state.sar.num = 1;
+    state.sar.den = 1;
+
+    p_sys->p_vd = vout_NewDisplay( p_sys->p_vout, &fmt, &state, "opengl",
+                                   300000, 1000000 );
+    if( !p_sys->p_vd )
+    {
+        vlc_object_release( p_sys->p_vout );
+        goto error;
+    }
+    var_Create( p_sys->p_vout, "fullscreen", VLC_VAR_BOOL );
+    var_AddCallback( p_sys->p_vout, "fullscreen", VoutCallback, p_sys->p_vd );
 
-    /* Initialize the opengl provider for this thread */
-    p_thread->p_opengl->pf_init( p_thread->p_opengl );
+    gl = vout_GetDisplayOpengl( p_sys->p_vd );
+    if( !gl )
+    {
+        vout_DeleteDisplay( p_sys->p_vd, NULL );
+        vlc_object_release( p_sys->p_vout );
+        goto error;
+    }
+    vlc_cleanup_push( ThreadCleanup, p_filter );
 
     /* Create the projectM object */
-    p_thread->p_projectm = new projectM( p_thread->psz_config );
-    p_thread->i_buffer_size = p_thread->p_projectm->pcm()->maxsamples;
-    p_thread->p_buffer = (float*)malloc( p_thread->i_buffer_size *
-                                         sizeof( float ) );
+    p_sys->p_projectm = new projectM( p_sys->psz_config );
+    p_sys->i_buffer_size = p_sys->p_projectm->pcm()->maxsamples;
+    p_sys->p_buffer = (float*)calloc( p_sys->i_buffer_size,
+                                      sizeof( float ) );
 
-    /* TODO: Give to projectm the name of the input
-    p_thread->p_projectm->projectM_setTitle( "" ); */
+    vlc_sem_post( &p_sys->ready );
 
-    /* Reset the dislay to get the right size */
-    p_thread->p_projectm->projectM_resetGL( p_thread->i_width,
-                                            p_thread->i_height );
+    /* TODO: Give to projectm the name of the input
+    p_sys->p_projectm->projectM_setTitle( "" ); */
 
-    while( vlc_object_alive( p_thread ) )
+    /* */
+    int i_last_width  = 0;
+    int i_last_height = 0;
+    for( ;; )
     {
-        /* Render the image and swap the buffers */
-        vlc_mutex_lock( &p_thread->lock );
-        if( p_thread->i_nb_samples > 0 )
-            p_thread->p_projectm->pcm()->addPCMfloat( p_thread->p_buffer,
-                                                      p_thread->i_nb_samples );
+        /* Manage the events */
+        vout_ManageDisplay( p_sys->p_vd, true );
+        if( p_sys->p_vd->cfg->display.width  != i_last_width ||
+            p_sys->p_vd->cfg->display.height != i_last_height )
+        {
+            /* FIXME it is not perfect as we will have black bands */
+            vout_display_place_t place;
+            vout_display_PlacePicture( &place, &p_sys->p_vd->source, p_sys->p_vd->cfg, false );
+            p_sys->p_projectm->projectM_resetGL( place.width, place.height );
+
+            i_last_width  = p_sys->p_vd->cfg->display.width;
+            i_last_height = p_sys->p_vd->cfg->display.height;
+        }
 
-        p_thread->p_projectm->renderFrame();
-        p_thread->p_opengl->pf_swap( p_thread->p_opengl );
-        vlc_mutex_unlock( &p_thread->lock );
+        /* Render the image and swap the buffers */
+        vlc_mutex_lock( &p_sys->lock );
+        if( p_sys->i_nb_samples > 0 )
+        {
+            p_sys->p_projectm->pcm()->addPCMfloat( p_sys->p_buffer,
+                                                   p_sys->i_nb_samples );
+            p_sys->i_nb_samples = 0;
+        }
+        p_sys->p_projectm->renderFrame();
+        vlc_mutex_unlock( &p_sys->lock );
+
+        if( !vout_opengl_Lock(gl) )
+        {
+            vout_opengl_Swap( gl );
+            vout_opengl_Unlock( gl );
+        }
 
         /* TODO: use a fps limiter */
-        msleep( 1000 );
+        vlc_restorecancel( cancel );
+        msleep( 10000 );
+        cancel = vlc_savecancel();
     }
+    vlc_cleanup_pop();
+    abort();
 
-
-    /* Cleanup */
-    delete p_thread->p_projectm;
-
-    /* Free the openGL provider */
-    module_unneed( p_thread->p_opengl, p_thread->p_module );
-    vlc_object_detach( p_thread->p_opengl );
-    vlc_object_release( p_thread->p_opengl );
-
-
-    vlc_restorecancel( cancel );
+error:
+    p_sys->b_error = true;
+    vlc_sem_post( &p_sys->ready );
     return NULL;
+
 }
+