1 /*------------------------------------------------------------------------- 2 * drawElements Quality Program Tester Core 3 * ---------------------------------------- 4 * 5 * Copyright 2014 The Android Open Source Project 6 * 7 * Licensed under the Apache License, Version 2.0 (the "License"); 8 * you may not use this file except in compliance with the License. 9 * You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, software 14 * distributed under the License is distributed on an "AS IS" BASIS, 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 16 * See the License for the specific language governing permissions and 17 * limitations under the License. 18 * 19 *//*! 20 * \file 21 * \brief EGL utilities for interfacing with GL APIs. 22 *//*--------------------------------------------------------------------*/ 23 24 #include "egluGLUtil.hpp" 25 26 #include "egluUtil.hpp" 27 #include "eglwLibrary.hpp" 28 #include "eglwEnums.hpp" 29 #include "glwEnums.hpp" 30 31 #include <vector> 32 33 using std::vector; 34 35 namespace eglu 36 { 37 38 using namespace eglw; 39 40 glw::GLenum getImageGLTarget (EGLenum source) 41 { 42 switch (source) 43 { 44 case EGL_GL_TEXTURE_2D_KHR: return GL_TEXTURE_2D; 45 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR: return GL_TEXTURE_CUBE_MAP_POSITIVE_X; 46 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR: return GL_TEXTURE_CUBE_MAP_POSITIVE_Y; 47 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR: return GL_TEXTURE_CUBE_MAP_POSITIVE_Z; 48 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR: return GL_TEXTURE_CUBE_MAP_NEGATIVE_X; 49 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR: return GL_TEXTURE_CUBE_MAP_NEGATIVE_Y; 50 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR: return GL_TEXTURE_CUBE_MAP_NEGATIVE_Z; 51 case EGL_GL_TEXTURE_3D_KHR: return GL_TEXTURE_3D; 52 case EGL_GL_RENDERBUFFER_KHR: return GL_RENDERBUFFER; 53 default: DE_FATAL("Impossible"); return GL_NONE; 54 } 55 } 56 57 EGLint apiRenderableType (glu::ApiType apiType) 58 { 59 switch (apiType.getProfile()) 60 { 61 case glu::PROFILE_CORE: 62 case glu::PROFILE_COMPATIBILITY: 63 return EGL_OPENGL_BIT; 64 case glu::PROFILE_ES: 65 switch (apiType.getMajorVersion()) 66 { 67 case 1: return EGL_OPENGL_ES_BIT; 68 case 2: return EGL_OPENGL_ES2_BIT; 69 case 3: return EGL_OPENGL_ES3_BIT_KHR; 70 default: DE_FATAL("Unknown OpenGL ES version"); 71 } 72 break; 73 default: 74 DE_FATAL("Unknown GL API"); 75 } 76 77 return 0; 78 } 79 80 EGLContext createGLContext (const Library& egl, 81 EGLDisplay display, 82 EGLContext eglConfig, 83 const glu::ContextType& contextType, 84 eglw::EGLContext sharedContext, 85 glu::ResetNotificationStrategy resetNotificationStrategy) 86 { 87 const bool khrCreateContextSupported = hasExtension(egl, display, "EGL_KHR_create_context"); 88 const bool khrCreateContextNoErrorSupported = hasExtension(egl, display, "EGL_KHR_create_context_no_error"); 89 EGLContext context = EGL_NO_CONTEXT; 90 EGLenum api = EGL_NONE; 91 vector<EGLint> attribList; 92 93 if (glu::isContextTypeES(contextType)) 94 { 95 api = EGL_OPENGL_ES_API; 96 97 if (contextType.getMajorVersion() <= 2) 98 { 99 attribList.push_back(EGL_CONTEXT_CLIENT_VERSION); 100 attribList.push_back(contextType.getMajorVersion()); 101 } 102 else 103 { 104 if (!khrCreateContextSupported) 105 TCU_THROW(NotSupportedError, "EGL_KHR_create_context is required for OpenGL ES 3.0 and newer"); 106 107 attribList.push_back(EGL_CONTEXT_MAJOR_VERSION_KHR); 108 attribList.push_back(contextType.getMajorVersion()); 109 attribList.push_back(EGL_CONTEXT_MINOR_VERSION_KHR); 110 attribList.push_back(contextType.getMinorVersion()); 111 } 112 } 113 else 114 { 115 DE_ASSERT(glu::isContextTypeGLCore(contextType) || glu::isContextTypeGLCompatibility(contextType)); 116 117 if (!khrCreateContextSupported) 118 TCU_THROW(NotSupportedError, "EGL_KHR_create_context is required for OpenGL context creation"); 119 120 api = EGL_OPENGL_API; 121 122 attribList.push_back(EGL_CONTEXT_MAJOR_VERSION_KHR); 123 attribList.push_back(contextType.getMajorVersion()); 124 attribList.push_back(EGL_CONTEXT_MINOR_VERSION_KHR); 125 attribList.push_back(contextType.getMinorVersion()); 126 attribList.push_back(EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR); 127 attribList.push_back(glu::isContextTypeGLCore(contextType) ? EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR 128 : EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR); 129 } 130 131 if (contextType.getFlags() != glu::ContextFlags(0)) 132 { 133 EGLint flags = 0; 134 135 if (!khrCreateContextSupported) 136 TCU_THROW(NotSupportedError, "EGL_KHR_create_context is required for creating robust/debug/forward-compatible contexts"); 137 138 if ((contextType.getFlags() & glu::CONTEXT_DEBUG) != 0) 139 flags |= EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR; 140 141 if ((contextType.getFlags() & glu::CONTEXT_ROBUST) != 0) 142 { 143 if (glu::isContextTypeES(contextType)) 144 { 145 if (!hasExtension(egl, display, "EGL_EXT_create_context_robustness") && (getVersion(egl, display) < Version(1, 5))) 146 TCU_THROW(NotSupportedError, "EGL_EXT_create_context_robustness is required for creating robust context"); 147 148 attribList.push_back(EGL_CONTEXT_OPENGL_ROBUST_ACCESS_EXT); 149 attribList.push_back(EGL_TRUE); 150 } 151 else 152 flags |= EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR; 153 } 154 155 if ((contextType.getFlags() & glu::CONTEXT_NO_ERROR) != 0) 156 { 157 if (khrCreateContextNoErrorSupported) 158 { 159 attribList.push_back(EGL_CONTEXT_OPENGL_NO_ERROR_KHR); 160 attribList.push_back(EGL_TRUE); 161 } 162 else 163 throw tcu::NotSupportedError("EGL_KHR_create_context_no_error is required for creating no-error contexts"); 164 } 165 166 if ((contextType.getFlags() & glu::CONTEXT_FORWARD_COMPATIBLE) != 0) 167 { 168 if (!glu::isContextTypeGLCore(contextType)) 169 TCU_THROW(InternalError, "Only OpenGL core contexts can be forward-compatible"); 170 171 flags |= EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR; 172 } 173 174 attribList.push_back(EGL_CONTEXT_FLAGS_KHR); 175 attribList.push_back(flags); 176 177 if (resetNotificationStrategy != glu::RESET_NOTIFICATION_STRATEGY_NOT_SPECIFIED) 178 { 179 if (getVersion(egl, display) >= Version(1, 5) || glu::isContextTypeGLCore(contextType) || glu::isContextTypeGLCompatibility(contextType)) 180 attribList.push_back(EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_KHR); 181 else if (hasExtension(egl, display, "EGL_EXT_create_context_robustness")) 182 attribList.push_back(EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_EXT); 183 else 184 TCU_THROW(NotSupportedError, "EGL 1.5 or EGL_EXT_create_context_robustness is required for creating robust context"); 185 186 if (resetNotificationStrategy == glu::RESET_NOTIFICATION_STRATEGY_NO_RESET_NOTIFICATION) 187 attribList.push_back(EGL_NO_RESET_NOTIFICATION_KHR); 188 else if (resetNotificationStrategy == glu::RESET_NOTIFICATION_STRATEGY_LOSE_CONTEXT_ON_RESET) 189 attribList.push_back(EGL_LOSE_CONTEXT_ON_RESET_KHR); 190 else 191 TCU_THROW(InternalError, "Unknown reset notification strategy"); 192 } 193 } 194 195 attribList.push_back(EGL_NONE); 196 197 EGLU_CHECK_CALL(egl, bindAPI(api)); 198 context = egl.createContext(display, eglConfig, sharedContext, &(attribList[0])); 199 EGLU_CHECK_MSG(egl, "eglCreateContext()"); 200 201 return context; 202 } 203 204 static bool configMatches (const eglw::Library& egl, eglw::EGLDisplay display, eglw::EGLConfig eglConfig, const glu::RenderConfig& renderConfig) 205 { 206 // \todo [2014-03-12 pyry] Check other attributes like double-buffer bit. 207 208 { 209 EGLint renderableType = 0; 210 EGLint requiredRenderable = apiRenderableType(renderConfig.type.getAPI()); 211 212 EGLU_CHECK_CALL(egl, getConfigAttrib(display, eglConfig, EGL_RENDERABLE_TYPE, &renderableType)); 213 214 if ((renderableType & requiredRenderable) == 0) 215 return false; 216 } 217 218 if (renderConfig.surfaceType != glu::RenderConfig::SURFACETYPE_DONT_CARE) 219 { 220 EGLint surfaceType = 0; 221 EGLint requiredSurface = 0; 222 223 switch (renderConfig.surfaceType) 224 { 225 case glu::RenderConfig::SURFACETYPE_WINDOW: requiredSurface = EGL_WINDOW_BIT; break; 226 case glu::RenderConfig::SURFACETYPE_OFFSCREEN_NATIVE: requiredSurface = EGL_PIXMAP_BIT; break; 227 case glu::RenderConfig::SURFACETYPE_OFFSCREEN_GENERIC: requiredSurface = EGL_PBUFFER_BIT; break; 228 default: 229 DE_ASSERT(false); 230 } 231 232 EGLU_CHECK_CALL(egl, getConfigAttrib(display, eglConfig, EGL_SURFACE_TYPE, &surfaceType)); 233 234 if ((surfaceType & requiredSurface) == 0) 235 return false; 236 } 237 238 { 239 static const struct 240 { 241 int glu::RenderConfig::*field; 242 EGLint attrib; 243 } s_attribs[] = 244 { 245 { &glu::RenderConfig::id, EGL_CONFIG_ID }, 246 { &glu::RenderConfig::redBits, EGL_RED_SIZE }, 247 { &glu::RenderConfig::greenBits, EGL_GREEN_SIZE }, 248 { &glu::RenderConfig::blueBits, EGL_BLUE_SIZE }, 249 { &glu::RenderConfig::alphaBits, EGL_ALPHA_SIZE }, 250 { &glu::RenderConfig::depthBits, EGL_DEPTH_SIZE }, 251 { &glu::RenderConfig::stencilBits, EGL_STENCIL_SIZE }, 252 { &glu::RenderConfig::numSamples, EGL_SAMPLES }, 253 }; 254 255 for (int attribNdx = 0; attribNdx < DE_LENGTH_OF_ARRAY(s_attribs); attribNdx++) 256 { 257 if (renderConfig.*s_attribs[attribNdx].field != glu::RenderConfig::DONT_CARE) 258 { 259 EGLint value = 0; 260 EGLU_CHECK_CALL(egl, getConfigAttrib(display, eglConfig, s_attribs[attribNdx].attrib, &value)); 261 if (value != renderConfig.*s_attribs[attribNdx].field) 262 return false; 263 } 264 } 265 } 266 267 return true; 268 } 269 270 EGLConfig chooseConfig (const Library& egl, EGLDisplay display, const glu::RenderConfig& config) 271 { 272 const std::vector<EGLConfig> configs = eglu::getConfigs(egl, display); 273 274 for (vector<EGLConfig>::const_iterator iter = configs.begin(); iter != configs.end(); ++iter) 275 { 276 if (configMatches(egl, display, *iter, config)) 277 return *iter; 278 } 279 280 throw tcu::NotSupportedError("Matching EGL config not found", DE_NULL, __FILE__, __LINE__); 281 } 282 283 } 284
