326 lines
8.7 KiB
C++
326 lines
8.7 KiB
C++
#ifndef _movie__hpp__included__
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#define _movie__hpp__included__
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#include <string>
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#include <cstdint>
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#include <stdexcept>
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#include "controllerdata.hpp"
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/**
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* \brief Movie being played back or recorded
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*/
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class movie
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{
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public:
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/**
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* \brief Construct new empty movie.
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* \throws std::bad_alloc Not enough memory.
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*/
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movie() throw(std::bad_alloc);
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/**
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* \brief Is the movie in readonly mode?
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*
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* \return True if in read-only mode, false if in read-write mode.
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*/
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bool readonly_mode() throw();
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/**
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* \brief Switch between modes
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*
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* Switches movie to read-only or read-write mode. If switching to read-write mode, the movie is truncated.
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*
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* \param enable If true, switch to read-only mode, else to read-write mode.
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* \throws std::bad_alloc Not enough memory.
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*/
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void readonly_mode(bool enable) throw(std::bad_alloc);
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/**
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* \brief Get movie rerecord count
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*
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* Returns the movie rerecord count (this is not the same thing as global rerecord count).
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*
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* \return The movie rerecord count
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* \throws std::bad_alloc Not enough memory.
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*/
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std::string rerecord_count() throw(std::bad_alloc);
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/**
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* \brief Set movie rerecord count
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*
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* Sets the movie rerecord count (this is not the same thing as global rerecord count).
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*
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* \param count The new rerecord count
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* \throws std::bad_alloc Not enough memory.
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*/
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void rerecord_count(const std::string& count) throw(std::bad_alloc);
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/**
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* \brief Read project ID
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* \return The project ID
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* \throws std::bad_alloc Not enough memory.
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*/
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std::string project_id() throw(std::bad_alloc);
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/**
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* \brief Set project ID
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* \param id New project ID.
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* \throws std::bad_alloc Not enough memory.
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*/
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void project_id(const std::string& id) throw(std::bad_alloc);
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/**
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* \brief Get number of frames in movie
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* \return The number of frames.
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*/
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uint64_t get_frame_count() throw();
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/**
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* \brief Get number of currnet frame in movie
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*
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* The first frame in movie is 1. 0 is "before first frame" value.
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*
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* \return The number of frame
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*/
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uint64_t get_current_frame() throw();
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/**
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* \brief Get number of lag frames so far
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* \return The number of lag frames.
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*/
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uint64_t get_lag_frames() throw();
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/**
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* \brief Advance to next frame.
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*
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* This function advances to next frame in movie, discarding subframes not used. If the frame is lag frame, it is
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* counted as lag frame and subframe entry for it is made (if in readwrite mode).
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*
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* \throw std::bad_alloc Not enough memory.
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*/
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void next_frame() throw(std::bad_alloc);
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/**
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* \brief Get data ready flag for control index
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*
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* Reads the data ready flag. On new frame, all data ready flags are unset. On reading control, its data ready
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* flag is unset.
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*
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* \param controlindex The index of control to read it for.
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* \return The read value.
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* \throws std::logic_error Invalid control index.
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*/
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bool get_DRDY(unsigned controlindex) throw(std::logic_error);
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/**
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* \brief Get data ready flag for given (port,controller,index) index
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*
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* Reads the data ready flag. On new frame, all data ready flags are unset. On reading control, its data ready
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* flag is unset.
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*
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* This differs from get_DRDY(unsigned) in that this takes (port, controller,index) tuple.
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*
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* \param port The port controller is connected to (0 or 1)
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* \param controller The controller number within port (0 to 3)
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* \param index The index of control in controller (0 to 11)
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* \return The read value.
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* \throws std::logic_error Invalid control index.
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*/
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bool get_DRDY(unsigned port, unsigned controller, unsigned index) throw(std::logic_error);
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/**
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* \brief Set all data ready flags
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*/
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void set_all_DRDY() throw();
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/**
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* \brief Poll next value for given control index
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*
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* Poll a control. Note that index 0 (sync flag) always reads as released.
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*
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* \param controlindex The index
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* \return The read value
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* \throws std::bad_alloc Not enough memory.
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* \throws std::logic_error Invalid control index or before movie start.
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*/
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short next_input(unsigned controlindex) throw(std::bad_alloc, std::logic_error);
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/**
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* \brief Poll next value for given (port, controller, index) index
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*
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* Poll a control.
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*
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* \param port The port controller is connected to (0 or 1)
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* \param controller The controller number within port (0 to 3)
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* \param index The index of control in controller (0 to 11)
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* \return The read value
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* \throws std::bad_alloc Not enough memory.
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* \throws std::logic_error Invalid port, controller or index or before movie start.
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*/
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short next_input(unsigned port, unsigned controller, unsigned index) throw(std::bad_alloc, std::logic_error);
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/**
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* \brief Set values of current controls
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*
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* Set current control values. These are read in readwrite mode.
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*
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* \param controls The new controls.
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*/
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void set_controls(controls_t controls) throw();
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/**
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* \brief Get values of current controls
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*
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* Get current control values in effect.
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*
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* \return Controls
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*/
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controls_t get_controls() throw();
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/**
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* \brief Load a movie.
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*
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* Loads a movie plus some other parameters. The playback pointer is positioned to start of movie and readonly
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* mode is enabled.
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*
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* \param rerecs Movie rerecord count.
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* \param project_id Project ID of movie.
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* \param input The input track.
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* \throws std::bad_alloc Not enough memory.
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* \throws std::runtime_error Bad movie data.
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*/
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void load(const std::string& rerecs, const std::string& project_id, const std::vector<controls_t>& input)
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throw(std::bad_alloc, std::runtime_error);
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/**
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* \brief Save a movie.
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*
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* Saves the movie data.
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*
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* \return The movie data.
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* \throws std::bad_alloc Not enough memory.
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*/
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std::vector<controls_t> save() throw(std::bad_alloc);
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/**
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* \brief Save the state of movie code
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*
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* This method serializes the state of movie code.
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*
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* \return The serialized state.
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* \throws std::bad_alloc Not enough memory.
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*/
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std::vector<uint8_t> save_state() throw(std::bad_alloc);
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/**
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* \brief Restore the state of movie code
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*
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* Given previous serialized state from this movie, restore the state.
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*
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* \param state The state to restore.
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* \param ro If true, restore in readonly mode, otherwise in readwrite mode.
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* \throw std::bad_alloc Not enough memory.
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* \throw std::runtime_error State is not from this movie or states is corrupt.
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*/
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size_t restore_state(const std::vector<uint8_t>& state, bool ro) throw(std::bad_alloc, std::runtime_error);
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/**
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* \brief Get reset status for current frame.
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*
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* \return -1 if current frame doesn't have a reset. Otherwise number of cycles to wait for delayed reset (0 is
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* immediate reset).
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*/
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long get_reset_status() throw();
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/**
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* \brief Commit a reset.
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*/
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void commit_reset(long delay) throw(std::bad_alloc);
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/**
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* \brief Get how manyth poll in the frame next poll would be.
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*
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* \return Poll number.
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*/
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unsigned next_poll_number();
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uint64_t frame_subframes(uint64_t frame);
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controls_t read_subframe(uint64_t frame, uint64_t subframe);
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private:
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//TRUE if readonly mode is active.
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bool readonly;
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//Movie (not global!) rerecord count.
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std::string rerecords;
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//Project ID.
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std::string _project_id;
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//The actual controller data.
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std::vector<controls_t> movie_data;
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//Current frame + 1 (0 before next_frame() has been called.
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uint64_t current_frame;
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//First subframe in current frame (movie_data.size() if no subframes have been stored).
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uint64_t current_frame_first_subframe;
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//How many times has each control been polled (bit 31 is data ready bit)?
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uint32_t pollcounters[TOTAL_CONTROLS];
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//Current state of buttons.
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controls_t current_controls;
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//Number of known lag frames.
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uint64_t lag_frames;
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//Number of frames in movie.
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uint64_t frames_in_movie;
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//Cached subframes.
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void clear_caches();
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uint64_t cached_frame;
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uint64_t cached_subframe;
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//Count present subframes in frame starting from first_subframe (returns 0 if out of movie).
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uint32_t count_changes(uint64_t first_subframe);
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};
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/**
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* \brief Class encapsulating bridge logic between bsnes interface and movie code.
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*/
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class movie_logic
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{
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public:
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/**
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* \brief Create new bridge.
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*
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* \param m The movie to manipulate.
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*/
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movie_logic() throw();
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/**
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* \brief Get the movie instance associated.
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*/
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movie& get_movie() throw();
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/**
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* \brief Notify about new frame starting.
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*
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* \return Reset status for the new frame.
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*/
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long new_frame_starting(bool dont_poll) throw(std::bad_alloc, std::runtime_error);
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/**
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* \brief Poll for input.
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*
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* \return Value for polled input.
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*/
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short input_poll(bool port, unsigned dev, unsigned id) throw(std::bad_alloc, std::runtime_error);
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/**
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* \brief Called when movie code needs new controls snapshot.
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*
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* \param subframe True if this is for subframe update, false if for frame update.
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*/
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controls_t update_controls(bool subframe) throw(std::bad_alloc, std::runtime_error);
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private:
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movie mov;
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};
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/**
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* \brief Global rerecord count.
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*/
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extern std::string global_rerecord_count;
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#endif
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