v111.1

More improvements to SameBoy audio interface for Super Game Boy.
Added a fix for a very rare crashing issue with SDL 2.0 joypad support.

bsnes/emulator/audio/audio.hpp

@@ -55,6 +55,7 @@ struct Filter {
 
 struct Stream {
   auto reset(uint channels, double inputFrequency, double outputFrequency) -> void;
+  auto reset() -> void;
 
   auto frequency() const -> double;
   auto setFrequency(double inputFrequency, maybe<double> outputFrequency = nothing) -> void;
@@ -63,7 +64,7 @@ struct Stream {
   auto addLowPassFilter(double cutoffFrequency, Filter::Order order, uint passes = 1) -> void;
   auto addHighPassFilter(double cutoffFrequency, Filter::Order order, uint passes = 1) -> void;
 
-  auto pending() const -> bool;
+  auto pending() const -> uint;
   auto read(double samples[]) -> uint;
   auto write(const double samples[]) -> void;
 

bsnes/emulator/audio/stream.cpp

@@ -9,6 +9,12 @@ auto Stream::reset(uint channelCount, double inputFrequency, double outputFreque
   setFrequency(inputFrequency, outputFrequency);
 }
 
+auto Stream::reset() -> void {
+  for(auto& channel : channels) {
+    channel.resampler.reset(this->inputFrequency, this->outputFrequency);
+  }
+}
+
 auto Stream::frequency() const -> double {
   return inputFrequency;
 }
@@ -81,8 +87,9 @@ auto Stream::addHighPassFilter(double cutoffFrequency, Filter::Order order, uint
   }
 }
 
-auto Stream::pending() const -> bool {
-  return channels && channels[0].resampler.pending();
+auto Stream::pending() const -> uint {
+  if(!channels) return 0;
+  return channels[0].resampler.pending();
 }
 
 auto Stream::read(double samples[]) -> uint {

bsnes/emulator/emulator.hpp

@@ -29,7 +29,7 @@ using namespace nall;
 
 namespace Emulator {
   static const string Name    = "bsnes";
-  static const string Version = "111";
+  static const string Version = "111.1";
   static const string Author  = "byuu";
   static const string License = "GPLv3";
   static const string Website = "https://byuu.org";

bsnes/sfc/coprocessor/icd/icd.cpp

@@ -40,6 +40,7 @@ namespace SameBoy {
     float left  = sample->left  / 32768.0f;
     float right = sample->right / 32768.0f;
     icd.apuWrite(left, right);
+  //print(dsp.stream->pending(), " ", icd.stream->pending(), "\n");
   }
 
   static auto vblank(GB_gameboy_t*) -> void {
@@ -63,7 +64,7 @@ auto ICD::main() -> void {
     step(clocks >> 1);
   } else {  //DMG halted
     apuWrite(0.0, 0.0);
-    step(256);
+    step(128);
   }
   synchronizeCPU();
 }
@@ -75,16 +76,15 @@ auto ICD::step(uint clocks) -> void {
 auto ICD::load() -> bool {
   information = {};
 
-//todo: connect to SFC random enable setting
-//GB_random_set_enabled(false);
+  GB_random_set_enabled(configuration.hacks.entropy != "None");
   if(Frequency == 0) {
     GB_init(&sameboy, GB_MODEL_SGB_NO_SFC);
     GB_load_boot_rom_from_buffer(&sameboy, (const unsigned char*)&SGB1BootROM[0], 256);
-    GB_set_sample_rate(&sameboy, uint(system.cpuFrequency() / 5.0 / 128.0));
+    GB_set_sample_rate(&sameboy, 32768);
   } else {
     GB_init(&sameboy, GB_MODEL_SGB2_NO_SFC);
     GB_load_boot_rom_from_buffer(&sameboy, (const unsigned char*)&SGB2BootROM[0], 256);
-    GB_set_sample_rate(&sameboy, uint(Frequency / 5.0 / 128.0));
+    GB_set_sample_rate(&sameboy, 32000);
   }
   GB_set_highpass_filter_mode(&sameboy, GB_HIGHPASS_ACCURATE);
   GB_set_icd_hreset_callback(&sameboy, &SameBoy::hreset);
@@ -138,11 +138,12 @@ auto ICD::unload() -> void {
 }
 
 auto ICD::power(bool reset) -> void {
+  uint frequency = (Frequency ? Frequency : system.cpuFrequency()) / 5.0;
   //SGB1 uses CPU oscillator; SGB2 uses dedicated oscillator
-  create(ICD::Enter, (Frequency ? Frequency : system.cpuFrequency()) / 5.0);
-  if(!reset) {
-    stream = Emulator::audio.createStream(2, uint((Frequency ? Frequency : system.cpuFrequency()) / 5.0 / 128.0));
-  }
+  create(ICD::Enter, frequency);
+  if(!reset) stream = Emulator::audio.createStream(2, frequency / 128);
+  dsp.stream->reset();
+  icd.stream->reset();
 
   for(auto& packet : this->packet) packet = {};
   packetSize = 0;

bsnes/sfc/dsp/dsp.cpp

@@ -19,7 +19,9 @@ auto DSP::main() -> void {
   int count = spc_dsp.sample_count();
   if(count > 0) {
     for(uint n = 0; n < count; n += 2) {
-      stream->sample(samplebuffer[n + 0] / 32768.0f, samplebuffer[n + 1] / 32768.0f);
+      float left  = samplebuffer[n + 0] / 32768.0f;
+      float right = samplebuffer[n + 1] / 32768.0f;
+      stream->sample(left, right);
     }
     spc_dsp.set_output(samplebuffer, 8192);
   }

bsnes/target-bsnes/input/input.cpp

@@ -170,13 +170,23 @@ auto InputMapping::Binding::icon() -> image {
 }
 
 auto InputMapping::Binding::name() -> string {
-  if(device && device->isKeyboard()) {
+  //if ruby drivers cannot report accurate vendor/product IDs (eg SDL),
+  //and the user closes the emulator, changes gamepads, and restarts it,
+  //it is possible the wrong device will now be mapped to the input IDs.
+  //that could potentially make the group/input IDs go out of bounds.
+  if(!device) return {};
+  if(group >= device->size()) return {};
+  if(input >= device->group(group).size()) return {};
+
+  if(device->isKeyboard()) {
     return device->group(group).input(input).name();
   }
-  if(device && device->isMouse()) {
+
+  if(device->isMouse()) {
     return device->group(group).input(input).name();
   }
-  if(device && device->isJoypad()) {
+
+  if(device->isJoypad()) {
     string name{Hash::CRC16(string{device->id()}).digest().upcase()};
     name.append(" ", device->group(group).name());
     name.append(" ", device->group(group).input(input).name());
@@ -185,6 +195,7 @@ auto InputMapping::Binding::name() -> string {
     if(qualifier == Qualifier::Rumble) name.append(" Rumble");
     return name;
   }
+
   return {};
 }
 

nall/dsp/resampler/cubic.hpp

@@ -8,7 +8,7 @@ namespace nall::DSP::Resampler {
 struct Cubic {
   inline auto reset(double inputFrequency, double outputFrequency = 0, uint queueSize = 0) -> void;
   inline auto setInputFrequency(double inputFrequency) -> void;
-  inline auto pending() const -> bool;
+  inline auto pending() const -> uint;
   inline auto read() -> double;
   inline auto write(double sample) -> void;
 
@@ -37,7 +37,7 @@ auto Cubic::setInputFrequency(double inputFrequency) -> void {
   ratio = inputFrequency / outputFrequency;
 }
 
-auto Cubic::pending() const -> bool {
+auto Cubic::pending() const -> uint {
   return samples.pending();
 }
 

nall/queue.hpp

@@ -41,7 +41,7 @@ struct queue {
   template<typename U = T> auto capacity() const -> uint { return _capacity * sizeof(T) / sizeof(U); }
   template<typename U = T> auto size() const -> uint { return _size * sizeof(T) / sizeof(U); }
   auto empty() const -> bool { return _size == 0; }
-  auto pending() const -> bool { return _size > 0; }
+  auto pending() const -> uint { return _size; }
   auto full() const -> bool { return _size >= (int)_capacity; }
   auto underflow() const -> bool { return _size < 0; }
   auto overflow() const -> bool { return _size > (int)_capacity; }