ref: 88b781094d31f244b52a420330ec8049d7ca7b36
dir: /src/pt2_visuals_sync.h/
#pragma once #include <stdint.h> #include <stdbool.h> #include "pt2_paula.h" enum // flags { SET_SCOPE_VOLUME = 1, SET_SCOPE_PERIOD = 2, SET_SCOPE_DATA = 4, SET_SCOPE_LENGTH = 8, TRIGGER_SCOPE = 16, STOP_SCOPE = 32, UPDATE_VUMETER = 64, UPDATE_ANALYZER = 128 }; // 2^n-1 - don't change this! Total queue buffer length is already big. #define SYNC_QUEUE_LEN 8191 #ifdef _MSC_VER #pragma pack(push) #pragma pack(1) #endif typedef struct syncedChannel_t // pack to save RAM { const int8_t *data, *newData; uint16_t length, newLength; uint16_t period, analyzerPeriod; uint8_t flags; uint8_t volume, analyzerVolume, vuVolume; } #ifdef __GNUC__ __attribute__ ((packed)) #endif syncedChannel_t; #ifdef _MSC_VER #pragma pack(pop) #endif typedef struct chSyncData_t { syncedChannel_t channels[PAULA_VOICES]; uint64_t timestamp; } chSyncData_t; typedef struct chSync_t { volatile int32_t readPos, writePos; chSyncData_t data[SYNC_QUEUE_LEN + 1]; } chSync_t; void calcAudioLatencyVars(int32_t audioBufferSize, int32_t audioFreq); void setSyncTickTimeLen(uint32_t timeLen, uint32_t timeLenFrac); void fillVisualsSyncBuffer(void); void resetChSyncQueue(void); void updateChannelSyncBuffer(void); void setVisualsDMACON(uint16_t bits); void setVisualsVolume(int32_t ch, uint16_t vol); void setVisualsPeriod(int32_t ch, uint16_t period); void setVisualsLength(int32_t ch, uint16_t len); void setVisualsDataPtr(int32_t ch, const int8_t *src);