// Texture.cpp



#include <windows.h>



#include "Types.h"

#include "File.h"

#include "Misc.h"

#include "Texture.h"





CTexture::CTexture()

{

	Data = NULL;

}





CTexture::~CTexture()

{

	delete [] Data;

	Data = NULL;

}





s32 CTexture::LoadBMP( const char *filename )

{

	CFile

		file;

	BITMAPFILEHEADER

		bfh;

	BITMAPINFOHEADER

		bih;

	s32

		y,

		w,

		depth,

		offset;



	delete [] Data;

	Data = NULL;





	if (!file.Open( filename ))

	{

		Error( "Cannot open: '%s'", filename );

		return( FALSE );

	}



	file.Read( &bfh, sizeof( BITMAPFILEHEADER ) );



	if (bfh.bfType != 0x4d42)

	{

		file.Close();

		Error( "'%s' is not a BMP file.", filename );

		return( FALSE );

	}



	file.Read( &bih, sizeof( BITMAPINFOHEADER ) );



	Width = bih.biWidth;

	Height = bih.biHeight;



	depth = (bih.biPlanes * bih.biBitCount);



	if (depth != 8)

	{

		file.Close();

		Error( "'%s' is not 8-bit.", filename );

		return( FALSE );

	}



	file.Read( Palette, 256*4 );



	Data = new u8[Width * Height];

	w = (Width + 3) & ~3;



	for (y=0; y<Height; y++)

	{

		offset = (Height - y - 1) * w;

		file.Seek( bfh.bfOffBits+offset );

		file.Read( &Data[y * Width], Width );

	}



	file.Close();



	return( TRUE );

}