Logo Search packages:      
Sourcecode: openexr version File versions  Download package

ImfRgba.h

///////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2004, Industrial Light & Magic, a division of Lucas
// Digital Ltd. LLC
// 
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
// *       Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// *       Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// *       Neither the name of Industrial Light & Magic nor the names of
// its contributors may be used to endorse or promote products derived
// from this software without specific prior written permission. 
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
///////////////////////////////////////////////////////////////////////////


#ifndef INCLUDED_IMF_RGBA_H
#define INCLUDED_IMF_RGBA_H

//-----------------------------------------------------------------------------
//
//    class Rgba
//
//-----------------------------------------------------------------------------

#include <half.h>

namespace Imf {


//
// RGBA pixel
//

00054 struct Rgba
{
    half    r;
    half    g;
    half    b;
    half    a;
    
    Rgba () {}
    Rgba (half r, half g, half b, half a = 1.f): r (r), g (g), b (b), a (a) {}

    Rgba & operator = (const Rgba &other)
    {
      r = other.r;
      g = other.g;
      b = other.b;
      a = other.a;

      return *this;
    }
};


//
// Channels in an RGBA file
//

enum RgbaChannels
{
    WRITE_R = 0x01,           // Red
    WRITE_G = 0x02,           // Green
    WRITE_B = 0x04,           // Blue
    WRITE_A = 0x08,           // Alpha

    WRITE_Y = 0x10,           // Luminance, for black-and-white images,
                        // or in combination with chroma

    WRITE_C = 0x20,           // Chroma (two subsampled channels, RY and BY,
                        // supported only for scanline-based files)

    WRITE_RGB     = 0x07,           // Red, green, blue
    WRITE_RGBA    = 0x0f,           // Red, green, blue, alpha

    WRITE_YC      = 0x30,           // Luminance, chroma
    WRITE_YA      = 0x18,           // Luminance, alpha
    WRITE_YCA     = 0x38            // Luminance, chroma, alpha
};


} // namespace Imf

#endif

Generated by  Doxygen 1.6.0   Back to index