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#ifndef _TCUTEXCOMPAREVERIFIER_HPP
#define _TCUTEXCOMPAREVERIFIER_HPP
/*-------------------------------------------------------------------------
* drawElements Quality Program Tester Core
* ----------------------------------------
*
* Copyright 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*//*!
* \file
* \brief Texture compare (shadow) result verifier.
*//*--------------------------------------------------------------------*/
#include "tcuDefs.hpp"
#include "tcuTexture.hpp"
#include "tcuTexLookupVerifier.hpp"
namespace tcu
{
/*--------------------------------------------------------------------*//*!
* \brief Texture compare (shadow) lookup precision parameters.
* \see LookupPrecision
*//*--------------------------------------------------------------------*/
struct TexComparePrecision
{
IVec3 coordBits; //!< Bits per coordinate component before any transformations. Assumed to be floating-point.
IVec3 uvwBits; //!< Bits per component in final per-level UV(W) coordinates. Assumed to be fixed-point.
int pcfBits; //!< Number of accurate bits in PCF. This is additional error taken into account when doing filtering. Assumed to be fixed-point.
int referenceBits; //!< Number of accurate bits in compare reference value. Assumed to be fixed-point.
int resultBits; //!< Number of accurate bits in result value. Assumed to be fixed-point.
TexComparePrecision(void) : coordBits(22), uvwBits(16), pcfBits(16), referenceBits(16), resultBits(16)
{
}
} DE_WARN_UNUSED_TYPE;
bool isTexCompareResultValid(const Texture2DView &texture, const Sampler &sampler, const TexComparePrecision &prec,
const Vec2 &coord, const Vec2 &lodBounds, const float cmpReference, const float result);
bool isTexCompareResultValid(const TextureCubeView &texture, const Sampler &sampler, const TexComparePrecision &prec,
const Vec3 &coord, const Vec2 &lodBounds, const float cmpReference, const float result);
bool isTexCompareResultValid(const Texture2DArrayView &texture, const Sampler &sampler, const TexComparePrecision &prec,
const Vec3 &coord, const Vec2 &lodBounds, const float cmpReference, const float result);
bool isTexCompareResultValid(const Texture1DView &texture, const Sampler &sampler, const TexComparePrecision &prec,
const Vec1 &coord, const Vec2 &lodBounds, const float cmpReference, const float result);
bool isTexCompareResultValid(const Texture1DArrayView &texture, const Sampler &sampler, const TexComparePrecision &prec,
const Vec2 &coord, const Vec2 &lodBounds, const float cmpReference, const float result);
bool isTexCompareResultValid(const TextureCubeArrayView &texture, const Sampler &sampler,
const TexComparePrecision &prec, const Vec4 &coord, const Vec2 &lodBounds,
const float cmpReference, const float result);
bool isGatherOffsetsCompareResultValid(const Texture2DView &texture, const Sampler &sampler,
const TexComparePrecision &prec, const Vec2 &coord, const IVec2 (&offsets)[4],
float cmpReference, const Vec4 &result);
bool isGatherOffsetsCompareResultValid(const Texture2DArrayView &texture, const Sampler &sampler,
const TexComparePrecision &prec, const Vec3 &coord, const IVec2 (&offsets)[4],
float cmpReference, const Vec4 &result);
// \note For cube textures, gather is only defined without offset.
bool isGatherCompareResultValid(const TextureCubeView &texture, const Sampler &sampler, const TexComparePrecision &prec,
const Vec3 &coord, float cmpReference, const Vec4 &result);
} // namespace tcu
#endif // _TCUTEXCOMPAREVERIFIER_HPP