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      1 #ifndef _RSGSAMPLERS_HPP
      2 #define _RSGSAMPLERS_HPP
      3 /*-------------------------------------------------------------------------
      4  * drawElements Quality Program Random Shader Generator
      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 Samplers.
     24  *//*--------------------------------------------------------------------*/
     25 
     26 #include "rsgDefs.hpp"
     27 #include "tcuTexture.hpp"
     28 
     29 #include <map>
     30 
     31 namespace rsg
     32 {
     33 
     34 class Sampler2D
     35 {
     36 public:
     37 	Sampler2D (void)
     38 		: m_texture	(DE_NULL)
     39 		, m_sampler	()
     40 	{
     41 	}
     42 
     43 	Sampler2D (const tcu::Texture2D* texture, const tcu::Sampler& sampler)
     44 		: m_texture	(texture)
     45 		, m_sampler	(sampler)
     46 	{
     47 	}
     48 
     49 	inline tcu::Vec4 sample (float s, float t, float lod) const
     50 	{
     51 		return m_texture->sample(m_sampler, s, t, lod);
     52 	}
     53 
     54 private:
     55 	const tcu::Texture2D*		m_texture;
     56 	tcu::Sampler				m_sampler;
     57 };
     58 
     59 class SamplerCube
     60 {
     61 public:
     62 	SamplerCube (void)
     63 		: m_texture	(DE_NULL)
     64 		, m_sampler	()
     65 	{
     66 	}
     67 
     68 	SamplerCube (const tcu::TextureCube* texture, const tcu::Sampler& sampler)
     69 		: m_texture	(texture)
     70 		, m_sampler	(sampler)
     71 	{
     72 	}
     73 
     74 	inline tcu::Vec4 sample (float s, float t, float r, float lod) const
     75 	{
     76 		return m_texture->sample(m_sampler, s, t, r, lod);
     77 	}
     78 
     79 private:
     80 	const tcu::TextureCube*		m_texture;
     81 	tcu::Sampler				m_sampler;
     82 };
     83 
     84 typedef std::map<int, Sampler2D>	Sampler2DMap;
     85 typedef std::map<int, SamplerCube>	SamplerCubeMap;
     86 
     87 } // rsg
     88 
     89 #endif // _RSGSAMPLERS_HPP
     90