299 lines
10 KiB
C++
299 lines
10 KiB
C++
/*************************************************************************/
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/* event_stream_chibi.h */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#ifndef EVENT_STREAM_CHIBI_H
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#define EVENT_STREAM_CHIBI_H
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#include "cp_file_access_wrapper.h"
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#include "cp_mixer.h"
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#include "cp_player_data.h"
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#include "cp_sample_manager.h"
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#include "cp_song.h"
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#include "io/resource_loader.h"
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#include "os/file_access.h"
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#include "resource.h"
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#include "scene/resources/event_stream.h"
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#include "servers/audio_server.h"
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/** SAMPLE MANAGER **/
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class CPSampleManagerImpl : public CPSampleManager {
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struct SampleData {
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RID rid;
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bool stereo;
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bool is16;
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int len;
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int mixfreq;
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int loop_begin;
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int loop_end;
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int locks;
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DVector<uint8_t> lock;
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DVector<uint8_t>::Write w;
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CPSample_Loop_Type loop_type;
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};
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_FORCE_INLINE_ SampleData *_getsd(CPSample_ID p_id) {
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return ((SampleData *)p_id._private);
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}
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Set<SampleData *> valid;
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public:
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_FORCE_INLINE_ RID get_rid(CPSample_ID p_id) { return _getsd(p_id)->rid; }
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virtual CPSample_ID create(bool p_16bits, bool p_stereo, int32_t p_len);
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virtual void recreate(CPSample_ID p_id, bool p_16bits, bool p_stereo, int32_t p_len);
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virtual void destroy(CPSample_ID p_id);
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virtual bool check(CPSample_ID p_id); // return false if invalid
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virtual void set_c5_freq(CPSample_ID p_id, int32_t p_freq);
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virtual void set_loop_begin(CPSample_ID p_id, int32_t p_begin);
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virtual void set_loop_end(CPSample_ID p_id, int32_t p_end);
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virtual void set_loop_type(CPSample_ID p_id, CPSample_Loop_Type p_type);
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virtual void set_chunk(CPSample_ID p_id, int32_t p_index, void *p_data, int p_data_len);
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virtual int32_t get_loop_begin(CPSample_ID p_id);
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virtual int32_t get_loop_end(CPSample_ID p_id);
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virtual CPSample_Loop_Type get_loop_type(CPSample_ID p_id);
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virtual int32_t get_c5_freq(CPSample_ID p_id);
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virtual int32_t get_size(CPSample_ID p_id);
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virtual bool is_16bits(CPSample_ID p_id);
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virtual bool is_stereo(CPSample_ID p_id);
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virtual bool lock_data(CPSample_ID p_id);
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virtual void *get_data(CPSample_ID p_id); /* WARNING: Not all sample managers
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may be able to implement this, it depends on the mixer in use! */
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virtual int16_t get_data(CPSample_ID p_id, int p_sample, int p_channel = 0); /// Does not need locking
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virtual void set_data(CPSample_ID p_id, int p_sample, int16_t p_data, int p_channel = 0); /// Does not need locking
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virtual void unlock_data(CPSample_ID p_id);
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virtual void get_chunk(CPSample_ID p_id, int32_t p_index, void *p_data, int p_data_len);
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};
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/** MIXER **/
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class CPMixerImpl : public CPMixer {
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enum {
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MAX_VOICES = 64
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};
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struct Voice {
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AudioMixer::ChannelID channel;
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CPSample_ID sample;
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float freq_mult;
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float reverb;
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Voice() { reverb = 0.0; }
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};
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Voice voices[MAX_VOICES];
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int callback_interval;
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int callback_timeout;
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void (*callback)(void *);
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void *userdata;
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float voice_scale;
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float tempo_scale;
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float pitch_scale;
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AudioMixer::ReverbRoomType reverb_type;
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AudioMixer *mixer;
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public:
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void process_usecs(int p_usec, float p_volume, float p_pitch_scale, float p_tempo_scale);
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/* Callback */
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virtual void set_callback_interval(int p_interval_us); //in usecs, for tracker it's 2500000/tempo
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virtual void set_callback(void (*p_callback)(void *), void *p_userdata);
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/* Voice Control */
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virtual void setup_voice(int p_voice_index, CPSample_ID p_sample_id, int32_t p_start_index);
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virtual void stop_voice(int p_voice_index);
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virtual void set_voice_frequency(int p_voice_index, int32_t p_freq); //in freq*FREQUENCY_BITS
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virtual void set_voice_panning(int p_voice_index, int p_pan);
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virtual void set_voice_volume(int p_voice_index, int p_vol);
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virtual void set_voice_filter(int p_filter, bool p_enabled, uint8_t p_cutoff, uint8_t p_resonance);
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virtual void set_voice_reverb_send(int p_voice_index, int p_reverb);
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virtual void set_voice_chorus_send(int p_voice_index, int p_chorus); /* 0 - 255 */
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virtual void set_reverb_mode(ReverbMode p_mode);
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virtual void set_chorus_params(unsigned int p_delay_ms, unsigned int p_separation_ms, unsigned int p_depth_ms10, unsigned int p_speed_hz10);
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/* Info retrieving */
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virtual int32_t get_voice_sample_pos_index(int p_voice_index);
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virtual int get_voice_panning(int p_voice_index);
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virtual int get_voice_volume(int p_voice_index);
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virtual CPSample_ID get_voice_sample_id(int p_voice_index);
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virtual bool is_voice_active(int p_voice_index);
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virtual int get_active_voice_count() { return 0; }
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virtual int get_total_voice_count() { return MAX_VOICES; }
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virtual uint32_t get_mix_frequency() { return 0; }
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/* Methods below only work with software mixers, meant for software-based sound drivers, hardware mixers ignore them */
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virtual int32_t process(int32_t p_frames) { return 0; }
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virtual int32_t *get_mixdown_buffer_ptr() { return NULL; }
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virtual void set_mix_frequency(int32_t p_mix_frequency){};
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CPMixerImpl(AudioMixer *p_mixer = NULL);
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virtual ~CPMixerImpl() {}
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};
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/** FILE ACCESS **/
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class CPFileAccessWrapperImpl : public CPFileAccessWrapper {
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FileAccess *f;
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public:
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virtual Error open(const char *p_filename, int p_mode_flags);
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virtual void close();
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virtual void seek(uint32_t p_position);
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virtual void seek_end();
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virtual uint32_t get_pos();
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virtual bool eof_reached();
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virtual uint8_t get_byte();
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virtual void get_byte_array(uint8_t *p_dest, int p_elements);
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virtual void get_word_array(uint16_t *p_dest, int p_elements);
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virtual uint16_t get_word();
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virtual uint32_t get_dword();
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virtual void set_endian_conversion(bool p_swap);
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virtual bool is_open();
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virtual Error get_error();
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virtual void store_byte(uint8_t p_dest);
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virtual void store_byte_array(const uint8_t *p_dest, int p_elements);
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virtual void store_word(uint16_t p_dest);
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virtual void store_dword(uint32_t p_dest);
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CPFileAccessWrapperImpl() { f = NULL; }
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virtual ~CPFileAccessWrapperImpl() {
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if (f) memdelete(f);
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}
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};
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/////////////////////
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class EventStreamChibi;
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class EventStreamPlaybackChibi : public EventStreamPlayback {
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OBJ_TYPE(EventStreamPlaybackChibi, EventStreamPlayback);
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CPMixerImpl mixer;
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uint64_t total_usec;
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Ref<EventStreamChibi> stream;
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mutable CPPlayer *player;
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bool loop;
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int last_order;
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int loops;
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virtual Error _play();
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virtual bool _update(AudioMixer *p_mixer, uint64_t p_usec);
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virtual void _stop();
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float volume;
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float tempo_scale;
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float pitch_scale;
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public:
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virtual void set_paused(bool p_paused);
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virtual bool is_paused() const;
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virtual void set_loop(bool p_loop);
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virtual bool is_loop_enabled() const;
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virtual int get_loop_count() const;
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virtual float get_pos() const;
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virtual void seek_pos(float p_time);
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virtual void set_volume(float p_vol);
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virtual float get_volume() const;
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virtual void set_pitch_scale(float p_pitch_scale);
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virtual float get_pitch_scale() const;
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virtual void set_tempo_scale(float p_tempo_scale);
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virtual float get_tempo_scale() const;
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virtual void set_channel_volume(int p_channel, float p_volume);
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virtual float get_channel_volume(int p_channel) const;
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virtual float get_last_note_time(int p_channel) const;
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EventStreamPlaybackChibi(Ref<EventStreamChibi> p_stream = Ref<EventStreamChibi>());
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~EventStreamPlaybackChibi();
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};
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class EventStreamChibi : public EventStream {
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OBJ_TYPE(EventStreamChibi, EventStream);
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friend class ResourceFormatLoaderChibi;
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friend class EventStreamPlaybackChibi;
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//I think i didn't know what const was when i wrote this more than a decade ago
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//so it goes mutable :(
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mutable CPSong song;
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public:
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virtual Ref<EventStreamPlayback> instance_playback();
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virtual String get_stream_name() const;
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virtual float get_length() const;
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virtual int get_channel_count() const { return 64; } //tracker limit
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EventStreamChibi();
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};
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class ResourceFormatLoaderChibi : public ResourceFormatLoader {
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public:
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virtual RES load(const String &p_path, const String &p_original_path = "", Error *r_error = NULL);
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virtual void get_recognized_extensions(List<String> *p_extensions) const;
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virtual bool handles_type(const String &p_type) const;
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virtual String get_resource_type(const String &p_path) const;
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};
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void initialize_chibi();
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void finalize_chibi();
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#endif // EVENT_STREAM_CHIBI_H
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