MayaFlux 0.2.0
Digital-First Multimedia Processing Framework
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MayaFlux::Nodes::Generator::Generator Class Referenceabstract

Base class for all signal and pattern generators in Maya Flux. More...

#include <Generator.hpp>

+ Inheritance diagram for MayaFlux::Nodes::Generator::Generator:
+ Collaboration diagram for MayaFlux::Nodes::Generator::Generator:

Public Member Functions

virtual ~Generator ()=default
 Virtual destructor for proper cleanup.
 
virtual void set_amplitude (double amplitude)
 Sets the generator's amplitude.
 
virtual double get_amplitude () const
 Gets the current base amplitude.
 
virtual void enable_mock_process (bool mock_process)
 Allows RootNode to process the Generator without using the processed sample.
 
virtual bool should_mock_process () const
 Checks if the generator should mock process.
 
virtual void printGraph ()=0
 Prints a visual representation of the generated pattern.
 
virtual void printCurrent ()=0
 Prints the current state and parameters of the generator.
 
virtual void update_context (double value) override
 Updates the context object for callbacks.
 
virtual void set_frequency (float frequency)
 Sets the generator's frequency.
 
NodeContextget_last_context () override
 Gets the last created context object.
 
- Public Member Functions inherited from MayaFlux::Nodes::Node
virtual ~Node ()=default
 Virtual destructor for proper cleanup of derived classes.
 
virtual double process_sample (double input=0.)=0
 Processes a single data sample.
 
virtual std::vector< double > process_batch (unsigned int num_samples)=0
 Processes multiple samples at once.
 
virtual void on_tick (const NodeHook &callback)
 Registers a callback to be called on each tick.
 
virtual void on_tick_if (const NodeCondition &condition, const NodeHook &callback)
 Registers a conditional callback.
 
virtual bool remove_hook (const NodeHook &callback)
 Removes a previously registered callback.
 
virtual bool remove_conditional_hook (const NodeCondition &callback)
 Removes a previously registered conditional callback.
 
virtual void remove_all_hooks ()
 Removes all registered callbacks.
 
virtual void reset_processed_state ()
 Resets the processed state of the node and any attached input nodes.
 
virtual double get_last_output ()
 Retrieves the most recent output value produced by the node.
 
void register_channel_usage (uint32_t channel_id)
 Mark the specificed channel as a processor/user.
 
void unregister_channel_usage (uint32_t channel_id)
 Removes the specified channel from the usage tracking.
 
bool is_used_by_channel (uint32_t channel_id) const
 Checks if the node is currently used by a specific channel.
 
void request_reset_from_channel (uint32_t channel_id)
 Requests a reset of the processed state from a specific channel.
 
const std::atomic< uint32_t > & get_channel_mask () const
 Retrieves the current bitmask of active channels using this node.
 
void set_gpu_compatible (bool compatible)
 Sets whether the node is compatible with GPU processing.
 
bool is_gpu_compatible () const
 Checks if the node supports GPU processing.
 
std::span< const float > get_gpu_data_buffer () const
 Provides access to the GPU data buffer.
 
virtual void save_state ()=0
 Saves the node's current state for later restoration Recursively cascades through all connected modulator nodes Protected - only NodeSourceProcessor and NodeBuffer can call.
 
virtual void restore_state ()=0
 Restores the node's state from the last save Recursively cascades through all connected modulator nodes Protected - only NodeSourceProcessor and NodeBuffer can call.
 
bool try_claim_snapshot_context (uint64_t context_id)
 Attempt to claim snapshot context for this processing cycle.
 
bool is_in_snapshot_context (uint64_t context_id) const
 Check if currently in a snapshot context.
 
void release_snapshot_context (uint64_t context_id)
 Release snapshot context.
 
bool has_active_snapshot () const
 Check if node is currently being snapshotted by any context.
 
uint64_t get_active_snapshot_context () const
 Get the active snapshot context ID.
 
void add_buffer_reference ()
 Increments the buffer reference count This method is called when a new buffer starts using this node to ensure proper lifecycle management.
 
void remove_buffer_reference ()
 Decrements the buffer reference count This method is called when a buffer stops using this node to ensure proper lifecycle management.
 
bool mark_buffer_processed ()
 Marks the node as having been processed by a buffer.
 
void request_buffer_reset ()
 Requests a reset of the buffer state.
 
bool is_buffer_processed () const
 Checks if the buffer has been processed.
 
bool is_in_network () const
 Sets whether the node is part of a NodeNetwork.
 
void set_in_network (bool networked)
 Marks the node as being part of a NodeNetwork.
 

Protected Attributes

double m_amplitude { 1.0 }
 Base amplitude of the generator.
 
float m_frequency { 440.0F }
 Base frequency of the generator.
 
double m_phase {}
 Current phase of the generator.
 
GeneratorContext m_context { 0., m_frequency, m_amplitude, m_phase }
 
GeneratorContextGpu m_context_gpu { 0., m_frequency, m_amplitude, m_phase, get_gpu_data_buffer() }
 
- Protected Attributes inherited from MayaFlux::Nodes::Node
double m_last_output { 0 }
 The most recent sample value generated by this oscillator.
 
bool m_gpu_compatible {}
 Flag indicating if the node supports GPU processing This flag is set by derived classes to indicate whether the node can be processed on the GPU.
 
std::vector< float > m_gpu_data_buffer
 GPU data buffer for context objects.
 
std::vector< NodeHookm_callbacks
 Collection of standard callback functions.
 
std::vector< std::pair< NodeHook, NodeCondition > > m_conditional_callbacks
 Collection of conditional callback functions with their predicates.
 
bool m_networked_node {}
 Flag indicating if the node is part of a NodeNetwork This flag is used to disable event firing when the node is managed within a NodeNetwork, preventing redundant or conflicting event notifications.
 
bool m_state_saved {}
 tracks if the node's state has been saved by a snapshot operation
 

Additional Inherited Members

- Public Attributes inherited from MayaFlux::Nodes::Node
bool m_fire_events_during_snapshot = false
 Internal flag controlling whether notify_tick fires during state snapshots Default: false (events don't fire during isolated buffer processing) Can be exposed in future if needed via concrete implementation in parent.
 
std::atomic< Utils::NodeStatem_state { Utils::NodeState::INACTIVE }
 Atomic state flag tracking the node's processing status.
 
std::atomic< uint32_t > m_modulator_count { 0 }
 Counter tracking how many other nodes are using this node as a modulator.
 
- Protected Member Functions inherited from MayaFlux::Nodes::Node
virtual void notify_tick (double value)=0
 Notifies all registered callbacks with the current context.
 
virtual void reset_processed_state_internal ()
 Resets the processed state of the node directly.
 

Detailed Description

Base class for all signal and pattern generators in Maya Flux.

Generators are specialized nodes that create numerical sequences from mathematical principles, rather than processing existing signals. They form the foundation of the computational graph by providing the initial patterns that other nodes can then transform, filter, or combine.

Unlike transformation nodes that modify input signals, generators typically:

  • Create sequences based on mathematical formulas or algorithms
  • Maintain internal state to track progression, phase, or other parameters
  • Can operate autonomously without any input (though they may accept modulation inputs)
  • Serve as the origin points in computational processing networks

Common types of generators include:

  • Oscillators (sine, square, sawtooth, triangle waves)
  • Stochastic generators (various probability distributions)
  • Sample-based generators (playing back recorded sequences)
  • Envelope generators (creating amplitude contours)

Generators integrate with the node graph system, allowing them to be:

  • Connected to other nodes using operators like '>>' (chain)
  • Combined with other nodes using operators like '+' (mix)
  • Registered with a RootNode for processing
  • Used as modulation sources for other generators or transformations

The Generator class extends the base Node interface with additional methods for visualization and analysis of the generated patterns.

Definition at line 110 of file Generator.hpp.


The documentation for this class was generated from the following files: