demotool/sync.hh

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#pragma once
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#include "filewatcher.hh"
#include "utilities.hh"
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#include <ebcl/SRDParserConfig.hh>
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#include <ebcl/Sets.hh>
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// Duration and current playing time
struct T_SyncTime
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{
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float uDuration = 1.f / 60.f; // Duration - unit size
uint32_t iDuration = 3600; // Duration - total units
float time = 0;
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void setDuration(
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const float uDuration ,
const uint32_t iDuration );
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float duration( ) const noexcept
{ return uDuration * iDuration; }
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void setTime( const float t ) noexcept
{ time = std::max( 0.f , std::min( t , duration( ) ) ); }
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};
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/*============================================================================*/
// Segment of an input's curve
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struct T_SyncSegment
{
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enum E_SegmentType
{
LINEAR ,
RAMP ,
SMOOTH ,
//HERMITE
};
E_SegmentType type;
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T_Array< float > values;
T_Array< uint32_t > durations; // n(values) - 1 items
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};
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// An input curve
struct T_SyncCurve
{
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T_String name;
T_Array< T_SyncSegment > segments;
T_SyncCurve( ) noexcept { }
T_SyncCurve( T_String const& name ) noexcept
: name( name )
{ }
T_SyncCurve( char const* name ) noexcept
: name( T_String( name ).usePool( ) )
{ }
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};
// All configured curves. Some may not actually correspond to an input and may
// have been defined for inputs that have been removed temporarily (e.g.
// because some include was commented out), in which case we don't want to
// waste them.
struct T_SyncCurves
{
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T_ObjectTable< T_String , T_SyncCurve > curves;
T_SyncCurves( )
: curves( []( T_SyncCurve const& c ) -> T_String { return c.name; } )
{ }
void clear( );
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void setCurve( T_SyncCurve curve );
// Returns -1 on lookup failure
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int32_t indexOf( T_String const& name ) noexcept;
int32_t indexOf( char const* name ) noexcept
{
return indexOf( T_String( name ) );
}
};
/*----------------------------------------------------------------------------*/
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// Pre-computed data for a curve
struct T_SyncCurveCache
{
using T_SegRef = std::pair< uint32_t , uint32_t >;
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uint32_t curve;
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T_Array< T_SegRef > segRefs;
T_Array< float > segStarts;
T_Array< float > segEnds;
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uint32_t curPos;
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T_SyncCurveCache(
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T_SyncTime const& time ,
T_SyncCurves const& curves ,
const uint32_t curve ) noexcept;
// Find the index of the segment for the specified time
uint32_t findSegment(
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const float time ) const noexcept;
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// Compute the value of the curve at the specified location, ignoring
// curPos.
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float valueAt(
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T_SyncTime const& time ,
T_SyncCurves const& curves ,
const float position ) const noexcept;
// Compute the value of the curve at the current time, using and
// updating curPos as necessary.
float value(
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T_SyncTime const& time ,
T_SyncCurves const& curves ) noexcept;
float segmentValue(
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float time ,
uint32_t segIndex ,
T_Array< T_SyncSegment > const& segments ) const noexcept;
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};
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using P_SyncCurveCache = T_OwnPtr< T_SyncCurveCache >;
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/*============================================================================*/
// Synchronization values. The values vector always contains an extra entry
// used for missing inputs.
struct T_SyncValues
{
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T_HashIndex index;
T_Array< T_String > identifiers;
T_Array< float > values;
T_Array< bool > overriden;
T_SyncValues( );
void clear( );
// Returns true on success, false on duplicate
bool addValue(
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T_String const& name ,
const float initial = 0.f ) noexcept;
bool addValue(
char const* name ,
const float initial = 0.f ) noexcept
{
return addValue( T_String( name ) , initial );
}
// If the name isn't found, the last entry of values[] is returned
uint32_t indexOf(
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T_String const& name ) const noexcept;
};
/*============================================================================*/
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class A_SyncOverride;
using P_SyncOverride = T_OwnPtr< A_SyncOverride >;
struct T_SyncOverrideSection;
using P_SyncOverrideSection = T_OwnPtr< T_SyncOverrideSection >;
// Base class for overrides
class A_SyncOverride
{
private:
T_String type_;
protected:
ebcl::T_Set< T_String > inputs_{
ebcl::UseTag< ebcl::ArrayBacked< 8 > >( ) };
T_AutoArray< uint32_t , 8 > inputPos_;
bool enabled_{ false };
explicit A_SyncOverride( T_String type ) noexcept;
public:
virtual ~A_SyncOverride( ) = 0;
T_String const& type( ) const noexcept
{ return type_; }
ebcl::T_Set< T_String > const& inputNames( ) const noexcept
{ return inputs_; }
bool enabled( ) const noexcept
{ return enabled_; }
// Connect the required inputs to the sync manager. Called once
// the inputs have been added.
virtual void setup( ) noexcept;
// Draw the UI for that specific override.
virtual void makeUI( ) noexcept = 0;
};
// Overrides section
struct T_SyncOverrideSection
{
bool open{ false };
T_String title;
T_Array< P_SyncOverrideSection > subsections;
T_Array< P_SyncOverride > overrides;
T_SyncOverrideSection( ) = delete;
NO_COPY( T_SyncOverrideSection );
DEF_MOVE( T_SyncOverrideSection );
explicit T_SyncOverrideSection( T_String title ) noexcept;
void merge( T_SyncOverrideSection& other ) noexcept;
void makeUI( bool topLevel ) noexcept;
T_SyncOverrideSection& section(
T_String const& name ) noexcept;
T_SyncOverrideSection const* section(
T_String const& name ) const noexcept;
};
/*============================================================================*/
// Synchronisation manager; handles all the synchronization data and makes it
// work together.
struct T_SyncManager
{
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T_SyncManager( );
// ---------------------------------------------------------------------
// Duration & time controls
void setDuration(
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const float uDuration ,
const uint32_t iDuration );
float duration( ) const noexcept
{ return time_.duration( ); }
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void setTime( const float time );
void timeDelta( const float delta )
{ setTime( time_.time + delta ); }
float time( ) const noexcept
{ return time_.time; }
bool finished( ) const noexcept
{ return time_.time >= time_.duration( ); }
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// ---------------------------------------------------------------------
// Value access
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void clearInputs( )
{ values_.clear( ); }
bool addInput( T_String const& name ,
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const float initial = 0.f ) noexcept
{ return values_.addValue( name , initial ); }
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uint32_t inputPos( T_String const& name ) const noexcept
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{ return values_.indexOf( name ); }
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T_Array< float > const& inputs( ) const noexcept
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{ return values_.values; }
// ---------------------------------------------------------------------
// Curves
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void checkCurveFile( );
void clearCurves( );
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void setCurve( T_SyncCurve curve );
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private:
void curvesChanged_( );
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bool loadCurves_( bool& missing );
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// ---------------------------------------------------------------------
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// Overrides
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public:
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void registerOverride( ebcl::T_SRDInputRule rule );
// ---------------------------------------------------------------------
// Update
void updateCurveCaches( );
void updateValues( );
private:
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ebcl::T_SRDParserConfig pConfig_; // Parser config for curves
P_WatchedFiles watcher_; // Curves file watcher
T_SyncTime time_; // Duration/time information
T_SyncValues values_; // Value storage
T_SyncCurves curves_; // Curves storage
T_Array< P_SyncCurveCache > curveCaches_; // Cache for curve segments
ebcl::T_SRDParserDefs pdOverrides_; // Parser definitions for UI overrides
ebcl::OP_SRDParserConfig pcOverrides_; // Parser configuration for UI overrides
};