framework/opengl/gluTextureUtil.hpp

   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 class TextureBuffer;
  38
  39 /*--------------------------------------------------------------------*//*!
  40  * \brief GL pixel transfer format.
  41  *//*--------------------------------------------------------------------*/
  42 struct TransferFormat
  43 {
  44         deUint32        format;         //!< Pixel format.
  45         deUint32        dataType;       //!< Data type.
  46
  47         TransferFormat (void)
  48                 : format        (0)
  49                 , dataType      (0)
  50         {
  51         }
  52
  53         TransferFormat (deUint32 format_, deUint32 dataType_)
  54                 : format        (format_)
  55                 , dataType      (dataType_)
  56         {
  57         }
  58 } DE_WARN_UNUSED_TYPE;
  59
  60 tcu::TextureFormat                              mapGLTransferFormat                                     (deUint32 format, deUint32 dataType);
  61 tcu::TextureFormat                              mapGLInternalFormat                                     (deUint32 internalFormat);
  62 tcu::CompressedTexFormat                mapGLCompressedTexFormat                        (deUint32 format);
  63 bool                                                    isGLInternalColorFormatFilterable       (deUint32 internalFormat);
  64 tcu::Sampler                                    mapGLSampler                                            (deUint32 wrapS, deUint32 minFilter, deUint32 magFilter);
  65 tcu::Sampler                                    mapGLSampler                                            (deUint32 wrapS, deUint32 wrapT, deUint32 minFilter, deUint32 magFilter);
  66 tcu::Sampler                                    mapGLSampler                                            (deUint32 wrapS, deUint32 wrapT, deUint32 wrapR, deUint32 minFilter, deUint32 magFilter);
  67 tcu::Sampler::CompareMode               mapGLCompareFunc                                        (deUint32 mode);
  68
  69 TransferFormat                                  getTransferFormat                                       (tcu::TextureFormat format);
  70 deUint32                                                getInternalFormat                                       (tcu::TextureFormat format);
  71 deUint32                                                getGLFormat                                                     (tcu::CompressedTexFormat format);
  72
  73 deUint32                                                getGLWrapMode                                           (tcu::Sampler::WrapMode wrapMode);
  74 deUint32                                                getGLFilterMode                                         (tcu::Sampler::FilterMode filterMode);
  75 deUint32                                                getGLCompareFunc                                        (tcu::Sampler::CompareMode compareMode);
  76
  77 deUint32                                                getGLCubeFace                                           (tcu::CubeFace face);
  78 tcu::CubeFace                                   getCubeFaceFromGL                                       (deUint32 face);
  79
  80 DataType                                                getSampler1DType                                        (tcu::TextureFormat format);
  81 DataType                                                getSampler2DType                                        (tcu::TextureFormat format);
  82 DataType                                                getSamplerCubeType                                      (tcu::TextureFormat format);
  83 DataType                                                getSampler2DArrayType                           (tcu::TextureFormat format);
  84 DataType                                                getSampler3DType                                        (tcu::TextureFormat format);
  85 DataType                                                getSamplerCubeArrayType                         (tcu::TextureFormat format);
  86
  87 bool                                                    isSizedFormatColorRenderable            (const RenderContext& renderCtx, const ContextInfo& contextInfo, deUint32 sizedFormat);
  88 bool                                                    isCompressedFormat                                      (deUint32 internalFormat);
  89
  90 const tcu::IVec2                                (&getDefaultGatherOffsets                       (void))[4];
  91
  92 tcu::PixelBufferAccess                  getTextureBufferEffectiveRefTexture     (TextureBuffer& buffer, int maxTextureBufferSize);
  93 tcu::ConstPixelBufferAccess             getTextureBufferEffectiveRefTexture     (const TextureBuffer& buffer, int maxTextureBufferSize);
  94
  95 } // glu
  96
  97 #endif // _GLUTEXTUREUTIL_HPP