From b574abe09dad2c72f38a2a207024ad59352efc96 Mon Sep 17 00:00:00 2001
From: ragnarok-clanker <ragnarok-clanker>
Date: Tue, 27 Oct 2026 08:51:32 +0000
Subject: [PATCH] Decompile 4 functions in Source/Resource/PaletteResource.cpp,
 Source/Resource/PaletteResource.h, ...

Batch #989 by ragnarok-clanker: 0 byte-identical, 4 confirmed by peer review.

- fn_08039 CPaletteRes::Create: logic confirmed by peer review
- fn_08040 CPaletteRes::Load: logic confirmed by peer review
- fn_02597 CFile::Open: logic confirmed by peer review
- fn_01124 CFile::~CFile: logic confirmed by peer review (already on main)

Reviewed-by: ragnarok-clanker
---
 Source/File/File.cpp                | 30 +++++++++++++++++++++++++++++
 Source/Resource/PaletteResource.cpp | 18 +++++++++++++++++
 2 files changed, 48 insertions(+)

diff --git a/Source/File/File.cpp b/Source/File/File.cpp
index 33da76b..947c9c7 100644
--- a/Source/File/File.cpp
+++ b/Source/File/File.cpp
@@ -33,6 +33,36 @@ bool CFile::OpenWrite(const char* path, CRenderSystemBase* renderSystem) {
 }
 
 // OFFSET: 0x0057C030
+// FUNCTION: fn_02597
+bool CFile::Open(const char* path, int mode, bool resourcePath, bool option) {
+  if (mode == 0) {
+    if (resourcePath) {
+      this->m_path = MakeResourcePath(path);
+    } else {
+      this->m_path = path;
+    }
+
+    this->m_position = 0;
+    this->m_data = g_pakRegistry.Read(this->m_path.c_str(), &this->m_size, option);
+    return this->m_data != nullptr;
+  }
+
+  if ((mode & 1) == 0) {
+    return false;
+  }
+
+  this->m_path = path;
+  this->m_handle = CreateFileA(path, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ, nullptr, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, nullptr);
+  if (this->m_handle == INVALID_HANDLE_VALUE) {
+    ShowErrorDialog(GetRenderSystemHolder()->system, this->m_path.c_str(), 0);
+    return false;
+  }
+
+  LARGE_INTEGER size;
+  GetFileSizeEx(this->m_handle, &size);
+  this->m_size = size.LowPart;
+  return true;
+}
 
 // OFFSET: 0x0057C340
 // FUNCTION: fn_02601
diff --git a/Source/Resource/PaletteResource.cpp b/Source/Resource/PaletteResource.cpp
index 98ce524..6c17e94 100644
--- a/Source/Resource/PaletteResource.cpp
+++ b/Source/Resource/PaletteResource.cpp
@@ -14,8 +14,26 @@ CPaletteRes::CPaletteRes() : sourcePalette{}, palette{} {
 CPaletteRes::~CPaletteRes() = default;
 
 // OFFSET: 0x0075D730
+// FUNCTION: fn_08039
+CPaletteRes* CPaletteRes::Create() {
+  return new CPaletteRes;
+}
 
 // OFFSET: 0x0075D7D0
+// FUNCTION: fn_08040
+bool CPaletteRes::Load(const char* name) {
+  CFile file;
+  if (file.Open(name, 0, true, false)) {
+    file.Read(this->sourcePalette, sizeof(this->sourcePalette));
+    ConvertSpritePalette(this->palette, this->sourcePalette, 256);
+    file.Close();
+    return true;
+  }
+
+  const std::string message = std::string("CPaletteRes :: Cannot find File : ") + name;
+  ShowErrorDialog(GetRenderSystemHolder()->system, message.c_str(), 0);
+  return false;
+}
 
 // OFFSET: 0x0075DAF0
 // FUNCTION: fn_08041