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      1 #ifndef _GLUTEXTUREUTIL_HPP
      2 #define _GLUTEXTUREUTIL_HPP
      3 /*-------------------------------------------------------------------------
      4  * drawElements Quality Program OpenGL ES Utilities
      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 format utilities.
     24  *//*--------------------------------------------------------------------*/
     25 
     26 #include "gluDefs.hpp"
     27 #include "tcuTexture.hpp"
     28 #include "tcuCompressedTexture.hpp"
     29 #include "gluShaderUtil.hpp"
     30 #include "deInt32.h"
     31 
     32 namespace glu
     33 {
     34 
     35 class RenderContext;
     36 class ContextInfo;
     37 
     38 /*--------------------------------------------------------------------*//*!
     39  * \brief GL pixel transfer format.
     40  *//*--------------------------------------------------------------------*/
     41 struct TransferFormat
     42 {
     43 	deUint32	format;		//!< Pixel format.
     44 	deUint32	dataType;	//!< Data type.
     45 
     46 	TransferFormat (void)
     47 		: format	(0)
     48 		, dataType	(0)
     49 	{
     50 	}
     51 
     52 	TransferFormat (deUint32 format_, deUint32 dataType_)
     53 		: format	(format_)
     54 		, dataType	(dataType_)
     55 	{
     56 	}
     57 };
     58 
     59 tcu::TextureFormat				mapGLTransferFormat					(deUint32 format, deUint32 dataType);
     60 tcu::TextureFormat				mapGLInternalFormat					(deUint32 internalFormat);
     61 bool							isGLInternalColorFormatFilterable	(deUint32 internalFormat);
     62 tcu::Sampler					mapGLSampler						(deUint32 wrapS, deUint32 minFilter, deUint32 magFilter);
     63 tcu::Sampler					mapGLSampler						(deUint32 wrapS, deUint32 wrapT, deUint32 minFilter, deUint32 magFilter);
     64 tcu::Sampler					mapGLSampler						(deUint32 wrapS, deUint32 wrapT, deUint32 wrapR, deUint32 minFilter, deUint32 magFilter);
     65 tcu::Sampler::CompareMode		mapGLCompareFunc					(deUint32 mode);
     66 
     67 TransferFormat					getTransferFormat					(tcu::TextureFormat format);
     68 deUint32						getInternalFormat					(tcu::TextureFormat format);
     69 deUint32						getGLFormat							(tcu::CompressedTexture::Format format);
     70 
     71 deUint32						getGLWrapMode						(tcu::Sampler::WrapMode wrapMode);
     72 deUint32						getGLFilterMode						(tcu::Sampler::FilterMode filterMode);
     73 deUint32						getGLCompareFunc					(tcu::Sampler::CompareMode compareMode);
     74 
     75 deUint32						getGLCubeFace						(tcu::CubeFace face);
     76 
     77 DataType						getSampler1DType					(tcu::TextureFormat format);
     78 DataType						getSampler2DType					(tcu::TextureFormat format);
     79 DataType						getSamplerCubeType					(tcu::TextureFormat format);
     80 DataType						getSampler2DArrayType				(tcu::TextureFormat format);
     81 DataType						getSampler3DType					(tcu::TextureFormat format);
     82 DataType						getSamplerCubeArrayType				(tcu::TextureFormat format);
     83 
     84 bool							isSizedFormatColorRenderable		(const RenderContext& renderCtx, const ContextInfo& contextInfo, deUint32 sizedFormat);
     85 
     86 } // glu
     87 
     88 #endif // _GLUTEXTUREUTIL_HPP
     89