1 #ifndef _RRFRAGMENTPACKET_HPP
2 #define _RRFRAGMENTPACKET_HPP
3 /*-------------------------------------------------------------------------
4 * drawElements Quality Program Reference Renderer
5 * -----------------------------------------------
7 * Copyright 2014 The Android Open Source Project
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
13 * http://www.apache.org/licenses/LICENSE-2.0
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.
23 * \brief Fragment packet
24 *//*--------------------------------------------------------------------*/
27 #include "rrGenericVector.hpp"
34 NUM_FRAGMENTS_PER_PACKET = 4
37 /*--------------------------------------------------------------------*//*!
38 * \brief Fragment packet
40 * Fragment packet contains inputs and outputs for fragment shading.
42 * Fragment shading is always done in 2x2 blocks in order to easily estimate
43 * derivates for mipmap-selection etc.
45 * Values packed in vectors (such as barycentrics) are in order:
46 * (x0,y0), (x1,y0), (x0,y1), (x1,y1)
49 *//*--------------------------------------------------------------------*/
52 tcu::IVec2 position; //!< Position of (0,0) fragment.
53 deUint64 coverage; //!< Coverage mask.
54 tcu::Vec4 barycentric[3]; //!< Perspective-correct barycentric values.
59 #endif // _RRFRAGMENTPACKET_HPP