Rename to DuckStation

src/core/host_interface.cpp

@@ -0,0 +1,97 @@
+#include "host_interface.h"
+#include "YBaseLib/ByteStream.h"
+#include "YBaseLib/Log.h"
+#include "system.h"
+Log_SetChannel(HostInterface);
+
+HostInterface::HostInterface() = default;
+
+HostInterface::~HostInterface() = default;
+
+bool HostInterface::InitializeSystem(const char* filename, const char* exp1_filename)
+{
+  m_system = std::make_unique<System>(this);
+  if (!m_system->Initialize())
+  {
+    m_system.reset();
+    return false;
+  }
+
+  m_system->Reset();
+
+  if (filename)
+  {
+    const StaticString filename_str(filename);
+    if (filename_str.EndsWith(".psexe", false) || filename_str.EndsWith(".exe", false))
+    {
+      Log_InfoPrintf("Sideloading EXE file '%s'", filename);
+      if (!m_system->LoadEXE(filename))
+      {
+        Log_ErrorPrintf("Failed to load EXE file '%s'", filename);
+        return false;
+      }
+    }
+    else
+    {
+      Log_InfoPrintf("Inserting CDROM from image file '%s'", filename);
+      if (!m_system->InsertMedia(filename))
+      {
+        Log_ErrorPrintf("Failed to insert media '%s'", filename);
+        return false;
+      }
+    }
+  }
+
+  if (exp1_filename)
+    m_system->SetExpansionROM(exp1_filename);
+
+  // Resume execution.
+  m_running = true;
+  return true;
+}
+
+bool HostInterface::LoadState(const char* filename)
+{
+  ByteStream* stream;
+  if (!ByteStream_OpenFileStream(filename, BYTESTREAM_OPEN_READ | BYTESTREAM_OPEN_STREAMED, &stream))
+    return false;
+
+  ReportMessage(SmallString::FromFormat("Loading state from %s...", filename));
+
+  const bool result = m_system->LoadState(stream);
+  if (!result)
+  {
+    ReportMessage(SmallString::FromFormat("Loading state from %s failed. Resetting.", filename));
+    m_system->Reset();
+  }
+
+  stream->Release();
+  return result;
+}
+
+bool HostInterface::SaveState(const char* filename)
+{
+  ByteStream* stream;
+  if (!ByteStream_OpenFileStream(filename,
+                                 BYTESTREAM_OPEN_CREATE | BYTESTREAM_OPEN_WRITE | BYTESTREAM_OPEN_TRUNCATE |
+                                   BYTESTREAM_OPEN_ATOMIC_UPDATE | BYTESTREAM_OPEN_STREAMED,
+                                 &stream))
+  {
+    return false;
+  }
+
+  const bool result = m_system->SaveState(stream);
+  if (!result)
+  {
+    ReportMessage(SmallString::FromFormat("Saving state to %s failed.", filename));
+    stream->Discard();
+  }
+  else
+  {
+    ReportMessage(SmallString::FromFormat("State saved to %s.", filename));
+    stream->Commit();
+  }
+
+  stream->Release();
+  return result;
+}