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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
#ifndef __C_IMAGE_LOADER_BMP_H_INCLUDED__
#define __C_IMAGE_LOADER_BMP_H_INCLUDED__
#include "IrrCompileConfig.h"
#include "IImageLoader.h"
namespace irr
{
namespace video
{
#if defined(_IRR_COMPILE_WITH_BMP_LOADER_) || defined(_IRR_COMPILE_WITH_BMP_WRITER_)
// 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"
#endif // defined with loader or writer
#ifdef _IRR_COMPILE_WITH_BMP_LOADER_
/*!
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")
virtual bool isALoadableFileExtension(const io::path& filename) const;
//! returns true if the file maybe is able to be loaded by this class
virtual bool isALoadableFileFormat(io::IReadFile* file) const;
//! creates a surface from the file
virtual IImage* loadImage(io::IReadFile* file) const;
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;
};
#endif // compiled with loader
} // end namespace video
} // end namespace irr
#endif
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