/src/FreeImage/Source/OpenEXR/IlmImf/ImfPreviewImage.cpp

  1///////////////////////////////////////////////////////////////////////////
  2//
  3// Copyright (c) 2003, Industrial Light & Magic, a division of Lucas
  4// Digital Ltd. LLC
  5// 
  6// All rights reserved.
  7// 
  8// Redistribution and use in source and binary forms, with or without
  9// modification, are permitted provided that the following conditions are
 10// met:
 11// *       Redistributions of source code must retain the above copyright
 12// notice, this list of conditions and the following disclaimer.
 13// *       Redistributions in binary form must reproduce the above
 14// copyright notice, this list of conditions and the following disclaimer
 15// in the documentation and/or other materials provided with the
 16// distribution.
 17// *       Neither the name of Industrial Light & Magic nor the names of
 18// its contributors may be used to endorse or promote products derived
 19// from this software without specific prior written permission. 
 20// 
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 22// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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 24// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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 32//
 33///////////////////////////////////////////////////////////////////////////
 34
 35
 36//-----------------------------------------------------------------------------
 37//
 38//	class PreviewImage
 39//
 40//-----------------------------------------------------------------------------
 41
 42#include <ImfPreviewImage.h>
 43#include <ImfCheckedArithmetic.h>
 44#include "Iex.h"
 45
 46namespace Imf {
 47
 48
 49PreviewImage::PreviewImage (unsigned int width,
 50			    unsigned int height,
 51			    const PreviewRgba pixels[])
 52{
 53    _width = width;
 54    _height = height;
 55    _pixels = new PreviewRgba
 56        [checkArraySize (uiMult (_width, _height), sizeof (PreviewRgba))];
 57
 58    if (pixels)
 59    {
 60	for (unsigned int i = 0; i < _width * _height; ++i)
 61	    _pixels[i] = pixels[i];
 62    }
 63    else
 64    {
 65	for (unsigned int i = 0; i < _width * _height; ++i)
 66	    _pixels[i] = PreviewRgba();
 67    }
 68}
 69
 70
 71PreviewImage::PreviewImage (const PreviewImage &other):
 72    _width (other._width),
 73    _height (other._height),
 74    _pixels (new PreviewRgba [other._width * other._height])
 75{
 76    for (unsigned int i = 0; i < _width * _height; ++i)
 77	_pixels[i] = other._pixels[i];
 78}
 79
 80
 81PreviewImage::~PreviewImage ()
 82{
 83    delete [] _pixels;
 84}
 85
 86
 87PreviewImage &
 88PreviewImage::operator = (const PreviewImage &other)
 89{
 90    delete [] _pixels;
 91
 92    _width = other._width;
 93    _height = other._height;
 94    _pixels = new PreviewRgba [other._width * other._height];
 95
 96    for (unsigned int i = 0; i < _width * _height; ++i)
 97	_pixels[i] = other._pixels[i];
 98
 99    return *this;
100}
101
102
103} // namespace Imf