1 #ifndef _RRFRAGMENTPACKET_HPP 2 #define _RRFRAGMENTPACKET_HPP 3 /*------------------------------------------------------------------------- 4 * drawElements Quality Program Reference Renderer 5 * ----------------------------------------------- 6 * 7 * Copyright 2014 The Android Open Source Project 8 * 9 * Licensed under the Apache License, Version 2.0 (the "License"); 10 * you may not use this file except in compliance with the License. 11 * You may obtain a copy of the License at 12 * 13 * http://www.apache.org/licenses/LICENSE-2.0 14 * 15 * Unless required by applicable law or agreed to in writing, software 16 * distributed under the License is distributed on an "AS IS" BASIS, 17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 18 * See the License for the specific language governing permissions and 19 * limitations under the License. 20 * 21 *//*! 22 * \file 23 * \brief Fragment packet 24 *//*--------------------------------------------------------------------*/ 25 26 #include "rrDefs.hpp" 27 #include "rrGenericVector.hpp" 28 29 namespace rr 30 { 31 32 enum 33 { 34 NUM_FRAGMENTS_PER_PACKET = 4 35 }; 36 37 /*--------------------------------------------------------------------*//*! 38 * \brief Fragment packet 39 * 40 * Fragment packet contains inputs and outputs for fragment shading. 41 * 42 * Fragment shading is always done in 2x2 blocks in order to easily estimate 43 * derivates for mipmap-selection etc. 44 * 45 * Values packed in vectors (such as barycentrics) are in order: 46 * (x0,y0), (x1,y0), (x0,y1), (x1,y1) 47 * OR: 48 * ndx = y*2 + x 49 *//*--------------------------------------------------------------------*/ 50 struct FragmentPacket 51 { 52 tcu::IVec2 position; //!< Position of (0,0) fragment. 53 deUint64 coverage; //!< Coverage mask. 54 tcu::Vec4 barycentric[3]; //!< Perspective-correct barycentric values. 55 }; 56 57 } // rr 58 59 #endif // _RRFRAGMENTPACKET_HPP 60
