Copy irrlichtmt to <root>/irr/

irr/src/CImageLoaderBMP.h

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+// Copyright (C) 2002-2012 Nikolaus Gebhardt
+// This file is part of the "Irrlicht Engine".
+// For conditions of distribution and use, see copyright notice in irrlicht.h
+
+#pragma once
+
+#include "IImageLoader.h"
+
+namespace irr
+{
+namespace video
+{
+
+// byte-align structures
+#include "irrpack.h"
+
+struct SBMPHeader
+{
+	u16 Id; //	BM - Windows 3.1x, 95, NT, 98, 2000, ME, XP
+			//	BA - OS/2 Bitmap Array
+			//	CI - OS/2 Color Icon
+			//	CP - OS/2 Color Pointer
+			//	IC - OS/2 Icon
+			//	PT - OS/2 Pointer
+	u32 FileSize;
+	u32 Reserved;
+	u32 BitmapDataOffset;
+	u32 BitmapHeaderSize; // should be 28h for windows bitmaps or
+						  // 0Ch for OS/2 1.x or F0h for OS/2 2.x
+	u32 Width;
+	u32 Height;
+	u16 Planes;
+	u16 BPP; // 1: Monochrome bitmap
+			 // 4: 16 color bitmap
+			 // 8: 256 color bitmap
+			 // 16: 16bit (high color) bitmap
+			 // 24: 24bit (true color) bitmap
+			 // 32: 32bit (true color) bitmap
+
+	u32 Compression; // 0: none (Also identified by BI_RGB)
+					 // 1: RLE 8-bit / pixel (Also identified by BI_RLE4)
+					 // 2: RLE 4-bit / pixel (Also identified by BI_RLE8)
+					 // 3: Bitfields  (Also identified by BI_BITFIELDS)
+
+	u32 BitmapDataSize; // Size of the bitmap data in bytes. This number must be rounded to the next 4 byte boundary.
+	u32 PixelPerMeterX;
+	u32 PixelPerMeterY;
+	u32 Colors;
+	u32 ImportantColors;
+} PACK_STRUCT;
+
+// Default alignment
+#include "irrunpack.h"
+
+/*!
+	Surface Loader for Windows bitmaps
+*/
+class CImageLoaderBMP : public IImageLoader
+{
+public:
+	//! constructor
+	CImageLoaderBMP();
+
+	//! returns true if the file maybe is able to be loaded by this class
+	//! based on the file extension (e.g. ".tga")
+	bool isALoadableFileExtension(const io::path &filename) const override;
+
+	//! returns true if the file maybe is able to be loaded by this class
+	bool isALoadableFileFormat(io::IReadFile *file) const override;
+
+	//! creates a surface from the file
+	IImage *loadImage(io::IReadFile *file) const override;
+
+private:
+	void decompress8BitRLE(u8 *&BmpData, s32 size, s32 width, s32 height, s32 pitch) const;
+
+	void decompress4BitRLE(u8 *&BmpData, s32 size, s32 width, s32 height, s32 pitch) const;
+};
+
+} // end namespace video
+} // end namespace irr