Revert Emulator::Audio to use doubles instead of floats

* fixes ODR violations, but is slightly slower (378fps->376fps)

bsnes/emulator/audio/audio.cpp

@@ -1,5 +1,3 @@
-#define double float
-
 namespace Emulator {
 
 #include "stream.cpp"

bsnes/emulator/audio/audio.hpp

@@ -1,5 +1,4 @@
 #pragma once
-#define double float
 
 #include <nall/dsp/iir/dc-removal.hpp>
 #include <nall/dsp/iir/one-pole.hpp>

bsnes/emulator/platform.hpp

@@ -17,7 +17,7 @@ struct Platform {
   virtual auto open(uint id, string name, vfs::file::mode mode, bool required = false) -> shared_pointer<vfs::file> { return {}; }
   virtual auto load(uint id, string name, string type, vector<string> options = {}) -> Load { return {}; }
   virtual auto videoFrame(const uint16* data, uint pitch, uint width, uint height, uint scale) -> void {}
-  virtual auto audioFrame(const float* samples, uint channels) -> void {}
+  virtual auto audioFrame(const double* samples, uint channels) -> void {}
   virtual auto inputPoll(uint port, uint device, uint input) -> int16 { return 0; }
   virtual auto inputRumble(uint port, uint device, uint input, bool enable) -> void {}
   virtual auto dipSettings(Markup::Node node) -> uint { return 0; }

bsnes/sfc/coprocessor/icd/interface.cpp

@@ -20,7 +20,7 @@ auto ICD::ppuWrite(uint2 color) -> void {
 }
 
 auto ICD::apuWrite(float left, float right) -> void {
-  float samples[] = {left, right};
+  double samples[] = {left, right};
   if(!system.runAhead) stream->write(samples);
 }
 

bsnes/target-bsnes/program/platform.cpp

@@ -253,14 +253,13 @@ auto Program::videoFrame(const uint16* data, uint pitch, uint width, uint height
   }
 }
 
-auto Program::audioFrame(const float* samples, uint channels) -> void {
+auto Program::audioFrame(const double* samples, uint channels) -> void {
   if(mute) {
     double silence[] = {0.0, 0.0};
-    return audio.output(silence);
+    audio.output(silence);
+  } else {
+    audio.output(samples);
   }
-
-  double frame[] = {samples[0], samples[1]};
-  audio.output(frame);
 }
 
 auto Program::inputPoll(uint port, uint device, uint input) -> int16 {

bsnes/target-bsnes/program/program.hpp

@@ -10,7 +10,7 @@ struct Program : Lock, Emulator::Platform {
   auto open(uint id, string name, vfs::file::mode mode, bool required) -> shared_pointer<vfs::file> override;
   auto load(uint id, string name, string type, vector<string> options = {}) -> Emulator::Platform::Load override;
   auto videoFrame(const uint16* data, uint pitch, uint width, uint height, uint scale) -> void override;
-  auto audioFrame(const float* samples, uint channels) -> void override;
+  auto audioFrame(const double* samples, uint channels) -> void override;
   auto inputPoll(uint port, uint device, uint input) -> int16 override;
   auto inputRumble(uint port, uint device, uint input, bool enable) -> void override;