1 /////////////////////////////////////////////////////////////////////////// 2 // 3 // Copyright (c) 2004, 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 // 21 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 24 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 25 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 27 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 // 33 /////////////////////////////////////////////////////////////////////////// 34 35 36 #ifndef INCLUDED_IMF_RGBA_H 37 #define INCLUDED_IMF_RGBA_H 38 39 //----------------------------------------------------------------------------- 40 // 41 // class Rgba 42 // 43 //----------------------------------------------------------------------------- 44 45 #include "half.h" 46 47 namespace Imf { 48 49 50 // 51 // RGBA pixel 52 // 53 54 struct Rgba 55 { 56 half r; 57 half g; 58 half b; 59 half a; 60 61 Rgba () {} 62 Rgba (half r, half g, half b, half a = 1.f): r (r), g (g), b (b), a (a) {} 63 64 Rgba & operator = (const Rgba &other) 65 { 66 r = other.r; 67 g = other.g; 68 b = other.b; 69 a = other.a; 70 71 return *this; 72 } 73 }; 74 75 76 // 77 // Channels in an RGBA file 78 // 79 80 enum RgbaChannels 81 { 82 WRITE_R = 0x01, // Red 83 WRITE_G = 0x02, // Green 84 WRITE_B = 0x04, // Blue 85 WRITE_A = 0x08, // Alpha 86 87 WRITE_Y = 0x10, // Luminance, for black-and-white images, 88 // or in combination with chroma 89 90 WRITE_C = 0x20, // Chroma (two subsampled channels, RY and BY, 91 // supported only for scanline-based files) 92 93 WRITE_RGB = 0x07, // Red, green, blue 94 WRITE_RGBA = 0x0f, // Red, green, blue, alpha 95 96 WRITE_YC = 0x30, // Luminance, chroma 97 WRITE_YA = 0x18, // Luminance, alpha 98 WRITE_YCA = 0x38 // Luminance, chroma, alpha 99 }; 100 101 102 } // namespace Imf 103 104 #endif 105
