From f6645cd9119bd9f4ec456d15c45b98243d234c8a Mon Sep 17 00:00:00 2001
From: Rtch90 <ritchie.cunningham@protonmail.com>
Date: Mon, 3 Sep 2012 01:26:42 +0100
Subject: [PATCH] [Add] Wrapper for InputStream.. Allows reading of files etc
 etc...

-- I'm going to bed. Night!
---
 Bin/LibD.pro                                 |  2 +
 src/System/Filesystem/InputStreamWrapper.cpp | 83 ++++++++++++++++++++
 src/System/Filesystem/InputStreamWrapper.h   | 16 ++++
 3 files changed, 101 insertions(+)
 create mode 100644 src/System/Filesystem/InputStreamWrapper.cpp
 create mode 100644 src/System/Filesystem/InputStreamWrapper.h

diff --git a/Bin/LibD.pro b/Bin/LibD.pro
index a16cd08..0b1751c 100644
--- a/Bin/LibD.pro
+++ b/Bin/LibD.pro
@@ -45,6 +45,7 @@ HEADERS += ../src/Actor/Player.h \
     ../src/System/Filesystem/FileList.h \
     ../src/System/Filesystem/InputFileStream.h \
     ../src/System/Filesystem/FilePackageManager.h \
+    ../src/System/Filesystem/InputStreamWrapper.h \
     ../src/Texture/Texture.h \
     ../src/Sound/Music.h \
     ../src/TMXParser/base64.h \
@@ -99,6 +100,7 @@ SOURCES += ../src/Actor/Player.cpp \
     ../src/System/Filesystem/FileList.cpp \
     ../src/System/Filesystem/InputFileStream.cpp \
     ../src/System/Filesystem/FilePackageManager.cpp \
+    ../src/System/Filesystem/InputStreamWrapper.cpp \
     ../src/Texture/Texture.cpp \
     ../src/Sound/Music.cpp \
     ../src/Actor/NPC.cpp \
diff --git a/src/System/Filesystem/InputStreamWrapper.cpp b/src/System/Filesystem/InputStreamWrapper.cpp
new file mode 100644
index 0000000..2bf7684
--- /dev/null
+++ b/src/System/Filesystem/InputStreamWrapper.cpp
@@ -0,0 +1,83 @@
+#include <vector>
+
+#include "../Debug.h"
+#include "InputStreamWrapper.h"
+#include "FilePackageManager.h"
+
+namespace saracraft { 
+namespace filesystem {
+namespace {
+  int openFileAmount = 0;
+
+  struct Tracker {
+    Tracker(void) {}
+
+    ~Tracker(void) { assert(openFileAmount == 0); }
+  };
+
+  Tracker tracker;
+} // Namespace Unamed.
+
+struct FB_FILE {
+  InputStream stream;
+    
+  FB_FILE(InputStream& stream_) : stream(stream_) {
+    ++openFileAmount;
+  }
+
+  ~FB_FILE(void) {
+    --openFileAmount;
+  }
+};
+
+FB_FILE* fb_fopen(const char* filename, const char*) {
+  if(!filename)
+    return 0;
+
+  FilePackageManager& manager = FilePackageManager::GetInstance();
+  manager.SetInputStreamErrorReporting(false);
+  InputStream stream = manager.GetFile(filename);
+  manager.SetInputStreamErrorReporting(true);
+
+  if(stream.IsEof())
+    return 0;
+  return new FB_FILE(stream);
+}
+
+size_t fb_fread(void* buffer, size_t size, size_t count, FB_FILE* stream) {
+  if(!stream) {
+    Debug::logger->message("fb_fread - Attempt to read when no stream is available.");
+    return 0;
+  }
+
+  if(stream->stream.IsEof()) {
+    Debug::logger->message("fb_fread - Attempt to read past the end of the file.");
+  }
+
+  unsigned char* charBuffer = reinterpret_cast<unsigned char*> (buffer);
+  stream->stream.Read(charBuffer, size * count);
+
+  return count;
+}
+
+size_t fb_fsize(FB_FILE* stream) {
+  if(!stream)
+    return 0;
+
+  return stream->stream.GetSize();
+}
+
+int fb_feof(FB_FILE* stream) {
+  if(!stream || stream->stream.IsEof())
+    return 1;
+  return 0;
+}
+
+int fb_fclose(FB_FILE* stream) {
+  delete stream;
+  return 0;
+}
+
+} // Namespace filesystem.
+} // Namespace saracraft.
+
diff --git a/src/System/Filesystem/InputStreamWrapper.h b/src/System/Filesystem/InputStreamWrapper.h
new file mode 100644
index 0000000..d643a20
--- /dev/null
+++ b/src/System/Filesystem/InputStreamWrapper.h
@@ -0,0 +1,16 @@
+#pragma once
+
+namespace saracraft {
+namespace filesystem {
+
+struct FB_FILE;
+
+FB_FILE* fb_fopen(const char* filename, const char*);
+size_t fb_fread(void* buffer, size_t size, size_t count, FB_FILE* stream);
+size_t fb_fsize(FB_FILE* stream);
+int fb_fclose(FB_FILE* stream);
+int fb_feof(FB_FILE* stream);
+
+} // Namespace filesystem.
+} // Namespace saracraft.
+