1 #ifndef _ESEXTCTEXTUREBUFFERPARAMETERS_HPP 2 #define _ESEXTCTEXTUREBUFFERPARAMETERS_HPP 3 /*------------------------------------------------------------------------- 4 * OpenGL Conformance Test Suite 5 * ----------------------------- 6 * 7 * Copyright (c) 2014-2016 The Khronos Group Inc. 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 24 */ /*-------------------------------------------------------------------*/ 25 26 /*! 27 * \file esextcTextureBufferParameters.hpp 28 * \brief Texture Buffer GetTexLevelParameter and GetIntegerv test (Test 6) 29 */ /*-------------------------------------------------------------------*/ 30 31 #include "../esextcTestCaseBase.hpp" 32 #include "gluShaderUtil.hpp" 33 #include "tcuDefs.hpp" 34 #include <map> 35 36 namespace glcts 37 { 38 39 /** Implementation of (Test 6) from CTS_EXT_texture_buffer. Description follows: 40 * 41 * Test whether for correctly configured texture buffer with attached 42 * buffer object used as data store, GetTexLevelParameter and GetIntegerv 43 * functions return correct values for new tokens specified in the extension 44 * specification. 45 * 46 * Category: API. 47 * 48 * The test should create a texture object and bind it to TEXTURE_BUFFER_EXT 49 * texture target at texture unit 0. It should also create buffer object and 50 * bind it to TEXTURE_BUFFER_EXT target. 51 * 52 * The function glGetIntegerv called with TEXTURE_BINDING_BUFFER_EXT parameter 53 * name should return the id of the texture object bound to TEXTURE_BUFFER_EXT 54 * binding point for the active texture image unit. 55 * 56 * The function glGetIntegerv called with TEXTURE_BUFFER_BINDING_EXT parameter 57 * name should return the id of the buffer object bound to the TEXTURE_BUFFER_EXT 58 * binding point. 59 * 60 * The test should iterate over all formats supported by texture buffer 61 * listed in table texbo.1 62 * 63 * For each format it should allocate memory block of size 128 * 64 * texel_size_for_format. 65 * 66 * Use glBufferData to initialize a buffer object's data store. 67 * glBufferData should be given a pointer to allocated memory that will be 68 * copied into the data store for initialization. 69 * 70 * The buffer object should be used as texture buffer's data store by calling 71 * 72 * TexBufferEXT(TEXTURE_BUFFER_EXT, format_name, buffer_id ); 73 * 74 * The function glGetTexLevelParameteriv called with 75 * TEXTURE_BUFFER_DATA_STORE_BINDING_EXT parameter name should return id of 76 * the buffer object whose data store is used by texture buffer. 77 * 78 * The function glGetTexLevelParameteriv called with TEXTURE_INTERNAL_FORMAT 79 * parameter name should return the name of the used format. 80 * 81 * The function glGetTexLevelParameteriv called with 82 * TEXTURE_BUFFER_OFFSET_EXT parameter name should return 0. 83 * 84 * The function glGetTexLevelParameteriv called with TEXTURE_BUFFER_SIZE_EXT 85 * parameter name should return 128 * texel_size_for_format. 86 * 87 * The function glGetTexLevelParameteriv called with one of the above parameter 88 * names and a non-zero lod should generate INVALID_VALUE error. 89 * 90 * Call: 91 * 92 * GLint offset_alignment = 0; 93 * GetIntegerv(TEXTURE_BUFFER_OFFSET_ALIGNMENT_EXT, &offset_alignment); 94 * 95 * Resize the buffer's data store using glBufferData to 96 * 256 * texel_size_for_format + offset_alignment while it's bound to the 97 * texture buffer. 98 * 99 * The function glGetTexLevelParameteriv called with 100 * TEXTURE_BUFFER_OFFSET_EXT parameter name should return 0. 101 * 102 * The function glGetTexLevelParameteriv called with TEXTURE_BUFFER_SIZE_EXT 103 * parameter name should return 256 * texel_size_for_format. 104 * 105 * Call: 106 * 107 * TexBufferRangeEXT(TEXTURE_BUFFER_EXT, format_name, buffer_id, 108 * offset_alignment, 256 * texel_size_for_format); 109 * 110 * The function glGetTexLevelParameteriv called with 111 * TEXTURE_BUFFER_OFFSET_EXT parameter name should return offset_alignment. 112 * 113 * The function glGetTexLevelParameteriv called with TEXTURE_BUFFER_SIZE_EXT 114 * parameter name should return 256 * texel_size_for_format. 115 */ 116 class TextureBufferParameters : public TestCaseBase 117 { 118 public: 119 /* Public methods */ 120 TextureBufferParameters(Context& context, const ExtParameters& extParams, const char* name, 121 const char* description); 122 ~TextureBufferParameters()123 virtual ~TextureBufferParameters() 124 { 125 } 126 127 virtual void deinit(void); 128 virtual IterateResult iterate(void); 129 130 private: 131 /* Private methods */ 132 void initTest(void); 133 134 glw::GLboolean queryTextureBindingBuffer(glw::GLint expected); 135 glw::GLboolean queryTextureBufferBinding(glw::GLint expected); 136 glw::GLboolean queryTextureBufferDataStoreBinding(glw::GLint expected); 137 glw::GLboolean queryTextureBufferOffset(glw::GLint expected); 138 glw::GLboolean queryTextureBufferSize(glw::GLint expected); 139 glw::GLboolean queryTextureInternalFormat(glw::GLint expected); 140 glw::GLboolean queryTextureInvalidLevel(); 141 142 static const glw::GLuint m_n_texels_phase_one; 143 static const glw::GLuint m_n_texels_phase_two; 144 145 typedef std::map<glw::GLint, glw::GLuint> InternalFormatsMap; 146 147 /* Private variables */ 148 InternalFormatsMap m_internal_formats; /* Maps internal format to texel size for that format */ 149 glw::GLuint m_tbo_id; /* Texture Buffer Object*/ 150 glw::GLuint m_to_id; /* Texture Object*/ 151 }; 152 153 } // namespace glcts 154 155 #endif // _ESEXTCTEXTUREBUFFERPARAMETERS_HPP 156