skogaby
156 lines
3.7 KiB
C++
156 lines
3.7 KiB
C++
#include "global.h"
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#include "LightsDriver_SextetStream.h"
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#include "PrefsManager.h"
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#include "RageLog.h"
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#include "RageUtil.h"
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#include "SextetUtils.h"
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#include <cstring>
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using namespace std;
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// Private members/methods are kept out of the header using an opaque pointer `_impl`.
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// Google "pimpl idiom" for an explanation of what's going on and why it is (or might be) useful.
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// Implementation class
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namespace
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{
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class Impl
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{
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protected:
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uint8_t lastOutput[FULL_SEXTET_COUNT];
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RageFile * out;
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public:
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Impl(RageFile * file) {
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out = file;
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// Ensure a non-match the first time
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lastOutput[0] = 0;
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}
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virtual ~Impl() {
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if(out != nullptr)
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{
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out->Flush();
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out->Close();
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SAFE_DELETE(out);
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}
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}
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void Set(const LightsState * ls)
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{
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uint8_t buffer[FULL_SEXTET_COUNT];
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packLine(buffer, ls);
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// Only write if the message has changed since the last write.
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if(memcmp(buffer, lastOutput, FULL_SEXTET_COUNT) != 0)
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{
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if(out != nullptr)
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{
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out->Write(buffer, FULL_SEXTET_COUNT);
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out->Flush();
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}
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// Remember last message
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memcpy(lastOutput, buffer, FULL_SEXTET_COUNT);
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}
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}
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};
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}
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// LightsDriver_SextetStream interface
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// (Wrapper for Impl)
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#define IMPL ((Impl*)_impl)
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LightsDriver_SextetStream::LightsDriver_SextetStream()
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{
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_impl = nullptr;
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}
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LightsDriver_SextetStream::~LightsDriver_SextetStream()
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{
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if(IMPL != nullptr)
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{
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delete IMPL;
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}
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}
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void LightsDriver_SextetStream::Set(const LightsState *ls)
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{
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if(IMPL != nullptr)
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{
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IMPL->Set(ls);
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}
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}
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// LightsDriver_SextetStreamToFile implementation
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REGISTER_LIGHTS_DRIVER_CLASS(SextetStreamToFile);
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#if defined(_WINDOWS)
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#define DEFAULT_OUTPUT_FILENAME "\\\\.\\pipe\\StepMania-Lights-SextetStream"
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#else
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#define DEFAULT_OUTPUT_FILENAME "Data/StepMania-Lights-SextetStream.out"
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#endif
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static Preference<RString> g_sSextetStreamOutputFilename("SextetStreamOutputFilename", DEFAULT_OUTPUT_FILENAME);
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inline RageFile * openOutputStream(const RString& filename)
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{
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RageFile * file = new RageFile;
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if(!file->Open(filename, RageFile::WRITE|RageFile::STREAMED))
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{
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LOG->Warn("Error opening file '%s' for output: %s", filename.c_str(), file->GetError().c_str());
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SAFE_DELETE(file);
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file = nullptr;
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}
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return file;
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}
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LightsDriver_SextetStreamToFile::LightsDriver_SextetStreamToFile(RageFile * file)
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{
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_impl = new Impl(file);
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}
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LightsDriver_SextetStreamToFile::LightsDriver_SextetStreamToFile(const RString& filename)
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{
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_impl = new Impl(openOutputStream(filename));
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}
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LightsDriver_SextetStreamToFile::LightsDriver_SextetStreamToFile()
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{
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_impl = new Impl(openOutputStream(g_sSextetStreamOutputFilename));
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}
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/*
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* Copyright © 2014 Peter S. May
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to permit
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* persons to whom the Software is furnished to do so, subject to the
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* following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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* NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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