1 #ifndef _TCUTEXCOMPAREVERIFIER_HPP 2 #define _TCUTEXCOMPAREVERIFIER_HPP 3 /*------------------------------------------------------------------------- 4 * drawElements Quality Program Tester Core 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 Texture compare (shadow) result verifier. 24 *//*--------------------------------------------------------------------*/ 25 26 #include "tcuDefs.hpp" 27 #include "tcuTexture.hpp" 28 #include "tcuTexLookupVerifier.hpp" 29 30 namespace tcu 31 { 32 33 /*--------------------------------------------------------------------*//*! 34 * \brief Texture compare (shadow) lookup precision parameters. 35 * \see LookupPrecision 36 *//*--------------------------------------------------------------------*/ 37 struct TexComparePrecision 38 { 39 IVec3 coordBits; //!< Bits per coordinate component before any transformations. Assumed to be floating-point. 40 IVec3 uvwBits; //!< Bits per component in final per-level UV(W) coordinates. Assumed to be fixed-point. 41 int pcfBits; //!< Number of accurate bits in PCF. This is additional error taken into account when doing filtering. Assumed to be fixed-point. 42 int referenceBits; //!< Number of accurate bits in compare reference value. Assumed to be fixed-point. 43 int resultBits; //!< Number of accurate bits in result value. Assumed to be fixed-point. 44 TexComparePrecisiontcu::TexComparePrecision45 TexComparePrecision (void) 46 : coordBits (22) 47 , uvwBits (16) 48 , pcfBits (16) 49 , referenceBits (16) 50 , resultBits (16) 51 { 52 } 53 } DE_WARN_UNUSED_TYPE; 54 55 bool isTexCompareResultValid (const Texture2DView& texture, const Sampler& sampler, const TexComparePrecision& prec, const Vec2& coord, const Vec2& lodBounds, const float cmpReference, const float result); 56 bool isTexCompareResultValid (const TextureCubeView& texture, const Sampler& sampler, const TexComparePrecision& prec, const Vec3& coord, const Vec2& lodBounds, const float cmpReference, const float result); 57 bool isTexCompareResultValid (const Texture2DArrayView& texture, const Sampler& sampler, const TexComparePrecision& prec, const Vec3& coord, const Vec2& lodBounds, const float cmpReference, const float result); 58 59 bool isGatherOffsetsCompareResultValid (const Texture2DView& texture, const Sampler& sampler, const TexComparePrecision& prec, const Vec2& coord, const IVec2 (&offsets)[4], float cmpReference, const Vec4& result); 60 bool isGatherOffsetsCompareResultValid (const Texture2DArrayView& texture, const Sampler& sampler, const TexComparePrecision& prec, const Vec3& coord, const IVec2 (&offsets)[4], float cmpReference, const Vec4& result); 61 // \note For cube textures, gather is only defined without offset. 62 bool isGatherCompareResultValid (const TextureCubeView& texture, const Sampler& sampler, const TexComparePrecision& prec, const Vec3& coord, float cmpReference, const Vec4& result); 63 64 } // tcu 65 66 #endif // _TCUTEXCOMPAREVERIFIER_HPP 67