N64ModernRuntime/librecomp/src/ai.cpp
2025-08-11 01:29:25 -04:00

34 lines
1.2 KiB
C++

#include "recomp.h"
#include <cstdio>
#include <string>
#include <ultramodern/ultra64.h>
#include <ultramodern/ultramodern.hpp>
#include <ultramodern/ultramodern_tracy.hpp>
#define VI_NTSC_CLOCK 48681812
extern "C" void osAiSetFrequency_recomp(uint8_t* rdram, recomp_context* ctx) {
uint32_t freq = ctx->r4;
// This makes actual audio frequency more accurate to console, but may not be desirable
//uint32_t dacRate = (uint32_t)(((float)VI_NTSC_CLOCK / freq) + 0.5f);
//freq = VI_NTSC_CLOCK / dacRate;
ctx->r2 = freq;
ultramodern::set_audio_frequency(freq);
std::string tracy_message = "Set AI Freq: " + std::to_string(freq);
TracyMessage(tracy_message.c_str(), tracy_message.size() + 1);
}
extern "C" void osAiSetNextBuffer_recomp(uint8_t* rdram, recomp_context* ctx) {
ZoneScoped;
ultramodern::queue_audio_buffer(rdram, ctx->r4, ctx->r5);
ctx->r2 = 0;
}
extern "C" void osAiGetLength_recomp(uint8_t* rdram, recomp_context* ctx) {
ctx->r2 = ultramodern::get_remaining_audio_bytes();
}
extern "C" void osAiGetStatus_recomp(uint8_t* rdram, recomp_context* ctx) {
ctx->r2 = 0x00000000; // Pretend the audio DMAs finish instantly
}