Reconstruct readable C++ and organize cohesive source subsystems

Administrative source import: native x86 compilation passed for 423 authored units. Source placement and submission states are migrated separately; this commit does not imply peer acceptance.

Previous head: 35d2a8cb36
Payload SHA256: 592f016d2730c5593bb653aa054c1e5f76a6df72c8f5a09e66f74876e2e33dee

Source/Resource/Bitmap/BitmapResource.cpp

@@ -0,0 +1,72 @@
+#include "Client/Application/ErrorDialog.h"
+#include "Resource/Bitmap/BitmapResource.h"
+#include "Resource/Bitmap/IJL15Runtime.h"
+
+#include <cstring>
+#include <windows.h>
+
+// OFFSET: 0x00749580
+// FUNCTION: fn_07847
+CBitmapRes::CBitmapRes(BitmapResourceContext& context) : m_context(&context) {
+}
+
+// OFFSET: 0x007498B0
+// FUNCTION: fn_07851
+CBitmapRes::~CBitmapRes() = default;
+
+// OFFSET: 0x00749580
+// FUNCTION: fn_07847
+CBitmapRes* CBitmapRes::Create() {
+  return new CBitmapRes(*this->m_context);
+}
+
+// OFFSET: 0x00749630
+// FUNCTION: fn_07848
+bool CBitmapRes::Load(const char* name) {
+  bool result = false;
+  if (name && this->m_context->file.Open(name)) {
+    if (this->Decode(name, this->m_context->file.Data(), this->m_context->file.Size(), false)) {
+      this->m_context->file.Close();
+      result = true;
+    } else {
+      this->m_context->file.Close();
+    }
+  }
+
+  this->m_context->file.Close();
+  return result;
+}
+
+// OFFSET: 0x00749850
+// FUNCTION: fn_07850
+void CBitmapRes::Unload() {
+  this->image.Clear();
+}
+
+// OFFSET: 0x00749780
+// FUNCTION: fn_07849
+bool CBitmapRes::Decode(const char* name, const void* data, int bytes, bool iconOnly) {
+  const char* extension = std::strrchr(name, '.');
+  if (!extension) {
+    return false;
+  }
+
+  if (lstrcmpiA(extension, ".bmp") == 0) {
+    return this->image.DecodeBitmap(data, bytes, iconOnly);
+  }
+
+  if (lstrcmpiA(extension, ".tga") == 0) {
+    return this->image.DecodeTga(data, bytes);
+  }
+
+  if (lstrcmpiA(extension, ".jpg") == 0) {
+    return this->image.DecodeJpeg(data, bytes, this->m_context->jpeg);
+  }
+
+  if (lstrcmpiA(extension, ".png") == 0) {
+    return this->image.DecodePng(data, bytes, name);
+  }
+
+  ShowErrorDialog(this->m_context->renderSystem, "Unsupport fileformat!", 0);
+  return false;
+}