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auto Program::attach(ares::Node::Object node) -> void {
if(auto screen = node->cast<ares::Node::Video::Screen>()) {
screens = emulator->root->find<ares::Node::Video::Screen>();
}
if(auto stream = node->cast<ares::Node::Audio::Stream>()) {
streams = emulator->root->find<ares::Node::Audio::Stream>();
stream->setResamplerFrequency(ruby::audio.frequency());
}
}
auto Program::detach(ares::Node::Object node) -> void {
if(auto screen = node->cast<ares::Node::Video::Screen>()) {
screens = emulator->root->find<ares::Node::Video::Screen>();
screens.removeByValue(screen);
}
if(auto stream = node->cast<ares::Node::Audio::Stream>()) {
streams = emulator->root->find<ares::Node::Audio::Stream>();
streams.removeByValue(stream);
stream->setResamplerFrequency(ruby::audio.frequency());
}
}
auto Program::pak(ares::Node::Object node) -> shared_pointer<vfs::directory> {
return emulator->pak(node);
}
auto Program::event(ares::Event event) -> void {
}
auto Program::log(string_view message) -> void {
if(traceLogger.traceToTerminal.checked()) {
print(message);
}
if(traceLogger.traceToFile.checked()) {
if(!traceLogger.fp) {
auto datetime = chrono::local::datetime().replace("-", "").replace(":", "").replace(" ", "-");
auto location = emulator->locate({Location::notsuffix(emulator->game->location), "-", datetime, ".log"}, ".log", settings.paths.debugging);
traceLogger.fp.open(location, file::mode::write);
}
traceLogger.fp.print(message);
//if the trace log file size grows beyond 1GiB, close the file handle so a new log file will be started.
//this is done because few text editors can open logs beyond a certain file size.
if(traceLogger.fp.size() >= 1_GiB) {
traceLogger.fp.close();
}
}
}
auto Program::video(ares::Node::Video::Screen node, const u32* data, u32 pitch, u32 width, u32 height) -> void {
if(!screens) return;
if(requestScreenshot) {
requestScreenshot = false;
captureScreenshot(data, pitch, width, height);
}
if(node->width() != emulator->latch.width || node->height() != emulator->latch.height || node->rotation() != emulator->latch.rotation) {
emulator->latch.width = node->width();
emulator->latch.height = node->height();
emulator->latch.rotation = node->rotation();
emulator->latch.changed = true; //signal Program::main() to potentially resize the presentation window
}
u32 videoWidth = node->width() * node->scaleX();
u32 videoHeight = node->height() * node->scaleY();
if(settings.video.aspectCorrection) videoWidth = videoWidth * node->aspectX() / node->aspectY();
if(node->rotation() == 90 || node->rotation() == 270) swap(videoWidth, videoHeight);
ruby::video.lock();
auto [viewportWidth, viewportHeight] = ruby::video.size();
u32 multiplierX = viewportWidth / videoWidth;
u32 multiplierY = viewportHeight / videoHeight;
u32 multiplier = min(multiplierX, multiplierY);
u32 outputWidth = videoWidth * multiplier;
u32 outputHeight = videoHeight * multiplier;
if(multiplier == 0 || settings.video.output == "Scale") {
f32 multiplierX = (f32)viewportWidth / (f32)videoWidth;
f32 multiplierY = (f32)viewportHeight / (f32)videoHeight;
f32 multiplier = min(multiplierX, multiplierY);
outputWidth = videoWidth * multiplier;
outputHeight = videoHeight * multiplier;
}
if(settings.video.output == "Stretch") {
outputWidth = viewportWidth;
outputHeight = viewportHeight;
}
pitch >>= 2;
if(auto [output, length] = ruby::video.acquire(width, height); output) {
length >>= 2;
for(auto y : range(height)) {
memory::copy<u32>(output + y * length, data + y * pitch, width);
}
ruby::video.release();
ruby::video.output(outputWidth, outputHeight);
}
ruby::video.unlock();
static u64 frameCounter = 0, previous, current;
frameCounter++;
current = chrono::timestamp();
if(current != previous) {
previous = current;
message.framesPerSecond = frameCounter;
frameCounter = 0;
}
}
auto Program::audio(ares::Node::Audio::Stream node) -> void {
if(!streams) return;
//process all pending frames (there may be more than one waiting)
while(true) {
//only process a frame if all streams have at least one pending frame
for(auto& stream : streams) {
if(!stream->pending()) return;
}
//mix all frames together
f64 samples[2] = {0.0, 0.0};
for(auto& stream : streams) {
f64 buffer[2];
u32 channels = stream->read(buffer);
if(channels == 1) {
//monaural -> stereo mixing
samples[0] += buffer[0];
samples[1] += buffer[0];
} else {
samples[0] += buffer[0];
samples[1] += buffer[1];
}
}
//apply volume, balance, and clamping to the output frame
f64 volume = !settings.audio.mute ? settings.audio.volume : 0.0;
f64 balance = settings.audio.balance;
for(u32 c : range(2)) {
samples[c] = max(-1.0, min(+1.0, samples[c] * volume));
if(balance < 0.0) samples[1] *= 1.0 + balance;
if(balance > 0.0) samples[0] *= 1.0 - balance;
}
//send frame to the audio output device
ruby::audio.output(samples);
}
}
auto Program::input(ares::Node::Input::Input node) -> void {
if(!driverSettings.inputDefocusAllow.checked()) {
if(!ruby::video.fullScreen() && !presentation.focused()) {
//treat the input as not being active
if(auto button = node->cast<ares::Node::Input::Button>()) button->setValue(0);
if(auto axis = node->cast<ares::Node::Input::Axis>()) axis->setValue(0);
if(auto trigger = node->cast<ares::Node::Input::Trigger>()) trigger->setValue(0);
return;
}
}
emulator->input(node);
}
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