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Some small changes

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This commit is contained in:
SimoneN64
2024-05-17 19:34:23 +02:00
parent 46853ecdf1
commit 87f9546ed3
2 changed files with 11 additions and 12 deletions
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5
src/backend/core/mmio/AI.cpp
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@@ -59,7 +59,7 @@ void AI::Write(u32 addr, u32 val) {
case 0x04500010: {
u32 oldDacFreq = dac.freq;
dacRate = val & 0x3FFF;
dac.freq = std::max(1u, GetVideoFrequency(mem.IsROMPAL()) / (dacRate + 1));
dac.freq = std::max(1.f, (float)GetVideoFrequency(mem.IsROMPAL()) / (dacRate + 1)) * 1.037;
dac.period = N64_CPU_FREQ / dac.freq;
if(oldDacFreq != dac.freq) {
device.AdjustSampleRate(dac.freq);
@@ -81,7 +81,8 @@ void AI::Step(u32 cpuCycles, float volumeL, float volumeR) {
return;
}
if(dmaLen[0] && dmaEnable) {u32 addrHi = ((dmaAddr[0] >> 13) + dmaAddrCarry) & 0x7FF;
if(dmaLen[0] && dmaEnable) {
u32 addrHi = ((dmaAddr[0] >> 13) + dmaAddrCarry) & 0x7FF;
dmaAddr[0] = (addrHi << 13) | (dmaAddr[0] & 0x1FFF);
u32 data = Util::ReadAccess<u32>(mem.mmio.rdp.rdram, dmaAddr[0] & RDRAM_DSIZE);
s16 l = s16(data >> 16);

18
src/backend/core/mmio/Audio.cpp
View File

@@ -30,10 +30,14 @@ void audioCallback(void* user, Uint8* stream, int length) {
AudioDevice::AudioDevice() {
SDL_InitSubSystem(SDL_INIT_AUDIO);
AdjustSampleRate(AUDIO_SAMPLE_RATE);
audioStream = SDL_NewAudioStream(SYSTEM_SAMPLE_FORMAT, 2, AUDIO_SAMPLE_RATE, SYSTEM_SAMPLE_FORMAT, 2, AUDIO_SAMPLE_RATE);
audioStreamMutex = SDL_CreateMutex();
if(!audioStreamMutex) {
Util::panic("Unable to initialize audio mutex: {}", SDL_GetError());
}
request.freq = AUDIO_SAMPLE_RATE;
request.format = SYSTEM_SAMPLE_FORMAT;
request.channels = 2;
@@ -41,19 +45,13 @@ AudioDevice::AudioDevice() {
request.callback = audioCallback;
request.userdata = (void*)this;
if(!handle) {
handle = SDL_OpenAudioDevice(nullptr, 0, &request, &audioSpec, 0);
}
handle = SDL_OpenAudioDevice(nullptr, 0, &request, &audioSpec, 0);
if(!handle) {
Util::panic("Failed to initialize SDL Audio: {}", SDL_GetError());
}
SDL_PauseAudioDevice(handle, false);
if(!audioStreamMutex) {
Util::panic("Unable to initialize audio mutex: {}", SDL_GetError());
}
}
void AudioDevice::PushSample(float left, float volumeL, float right, float volumeR) {
@@ -61,7 +59,7 @@ void AudioDevice::PushSample(float left, float volumeL, float right, float volum
float adjustedR = right * volumeR;
float samples[2]{ adjustedL, adjustedR };
float availableBytes = SDL_AudioStreamAvailable(audioStream);
auto availableBytes = (float)SDL_AudioStreamAvailable(audioStream);
if(availableBytes <= BYTES_PER_HALF_SECOND) {
SDL_AudioStreamPut(audioStream, samples, 2 * sizeof(float));
}
@@ -71,7 +69,7 @@ void AudioDevice::AdjustSampleRate(int sampleRate) {
LockMutex();
if(audioStream) SDL_FreeAudioStream(audioStream);
audioStream = SDL_NewAudioStream(AUDIO_F32SYS, 2, sampleRate, SYSTEM_SAMPLE_FORMAT, 2, AUDIO_SAMPLE_RATE);
audioStream = SDL_NewAudioStream(SYSTEM_SAMPLE_FORMAT, 2, sampleRate, SYSTEM_SAMPLE_FORMAT, 2, AUDIO_SAMPLE_RATE);
UnlockMutex();
}
}