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Added original SDK code for Alien Swarm.

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This commit is contained in:
Scott Ehlert
2010-07-22 01:46:14 -05:00
commit c0a96ff1e8
3740 changed files with 1243478 additions and 0 deletions
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107
public/bitmap/bitmap.h Normal file
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//===== Copyright <20> 1996-2005, Valve Corporation, All rights reserved. ======//
//
// Purpose:
//
// $Header: $
// $NoKeywords: $
//===========================================================================//
#ifndef BITMAP_H
#define BITMAP_H
#ifdef _WIN32
#pragma once
#endif
#include "bitmap/imageformat.h"
//-----------------------------------------------------------------------------
// Forward declarations
//-----------------------------------------------------------------------------
class CUtlBuffer;
//-----------------------------------------------------------------------------
// A Bitmap
//-----------------------------------------------------------------------------
struct Bitmap_t
{
Bitmap_t();
~Bitmap_t();
void Init( int nWidth, int nHeight, ImageFormat imageFormat );
unsigned char *GetPixel( int x, int y );
int m_nWidth;
int m_nHeight;
ImageFormat m_ImageFormat;
unsigned char *m_pBits;
};
inline Bitmap_t::Bitmap_t()
{
m_nWidth = 0;
m_nHeight = 0;
m_ImageFormat = IMAGE_FORMAT_UNKNOWN;
m_pBits = NULL;
}
inline Bitmap_t::~Bitmap_t()
{
if ( m_pBits )
{
delete[] m_pBits;
m_pBits = NULL;
}
}
inline void Bitmap_t::Init( int nWidth, int nHeight, ImageFormat imageFormat )
{
if ( m_pBits )
{
delete[] m_pBits;
m_pBits = NULL;
}
m_nWidth = nWidth;
m_nHeight = nHeight;
m_ImageFormat = imageFormat;
m_pBits = new unsigned char[ nWidth * nHeight * ImageLoader::SizeInBytes( m_ImageFormat ) ];
}
inline unsigned char *Bitmap_t::GetPixel( int x, int y )
{
if ( !m_pBits )
return NULL;
int nPixelSize = ImageLoader::SizeInBytes( m_ImageFormat );
return &m_pBits[ ( m_nWidth * y + x ) * nPixelSize ];
}
//-----------------------------------------------------------------------------
// Loads a bitmap from an arbitrary file: could be a TGA, PSD, or PFM.
// LoadBitmap autodetects which type, and returns it
//-----------------------------------------------------------------------------
enum BitmapFileType_t
{
BITMAP_FILE_TYPE_UNKNOWN = -1,
BITMAP_FILE_TYPE_PSD = 0,
BITMAP_FILE_TYPE_TGA,
BITMAP_FILE_TYPE_PFM,
};
BitmapFileType_t LoadBitmapFile( CUtlBuffer &buf, Bitmap_t *pBitmap );
//-----------------------------------------------------------------------------
// PFM file loading related methods
//-----------------------------------------------------------------------------
bool PFMReadFileR32F( CUtlBuffer &fileBuffer, Bitmap_t &bitmap, float pfmScale );
bool PFMReadFileRGB323232F( CUtlBuffer &fileBuffer, Bitmap_t &bitmap, float pfmScale );
bool PFMReadFileRGBA32323232F( CUtlBuffer &fileBuffer, Bitmap_t &bitmap, float pfmScale );
bool PFMGetInfo_AndAdvanceToTextureBits( CUtlBuffer &pfmBuffer, int &nWidth, int &nHeight, ImageFormat &imageFormat );
#endif // BITMAP_H