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
getImageGLTarget(EGLenum source)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
apiRenderableType(glu::ApiType apiType)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 default:
73 DE_FATAL("Unknown GL API");
74 }
75
76 return 0;
77 }
78
createGLContext(const Library & egl,EGLDisplay display,EGLContext eglConfig,const glu::ContextType & contextType)79 EGLContext createGLContext (const Library& egl, EGLDisplay display, EGLContext eglConfig, const glu::ContextType& contextType)
80 {
81 const bool khrCreateContextSupported = hasExtension(egl, display, "EGL_KHR_create_context");
82 EGLContext context = EGL_NO_CONTEXT;
83 EGLenum api = EGL_NONE;
84 vector<EGLint> attribList;
85
86 if (glu::isContextTypeES(contextType))
87 {
88 api = EGL_OPENGL_ES_API;
89
90 if (contextType.getMajorVersion() <= 2)
91 {
92 attribList.push_back(EGL_CONTEXT_CLIENT_VERSION);
93 attribList.push_back(contextType.getMajorVersion());
94 }
95 else
96 {
97 if (!khrCreateContextSupported)
98 throw tcu::NotSupportedError("EGL_KHR_create_context is required for OpenGL ES 3.0 and newer", DE_NULL, __FILE__, __LINE__);
99
100 attribList.push_back(EGL_CONTEXT_MAJOR_VERSION_KHR);
101 attribList.push_back(contextType.getMajorVersion());
102 attribList.push_back(EGL_CONTEXT_MINOR_VERSION_KHR);
103 attribList.push_back(contextType.getMinorVersion());
104 }
105 }
106 else
107 {
108 DE_ASSERT(glu::isContextTypeGLCore(contextType) || glu::isContextTypeGLCompatibility(contextType));
109
110 if (!khrCreateContextSupported)
111 throw tcu::NotSupportedError("EGL_KHR_create_context is required for OpenGL context creation", DE_NULL, __FILE__, __LINE__);
112
113 api = EGL_OPENGL_API;
114
115 attribList.push_back(EGL_CONTEXT_MAJOR_VERSION_KHR);
116 attribList.push_back(contextType.getMajorVersion());
117 attribList.push_back(EGL_CONTEXT_MINOR_VERSION_KHR);
118 attribList.push_back(contextType.getMinorVersion());
119 attribList.push_back(EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR);
120 attribList.push_back(glu::isContextTypeGLCore(contextType) ? EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR
121 : EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR);
122 }
123
124 if (contextType.getFlags() != glu::ContextFlags(0))
125 {
126 EGLint flags = 0;
127
128 if (!khrCreateContextSupported)
129 throw tcu::NotSupportedError("EGL_KHR_create_context is required for creating robust/debug/forward-compatible contexts");
130
131 if ((contextType.getFlags() & glu::CONTEXT_DEBUG) != 0)
132 flags |= EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR;
133
134 if ((contextType.getFlags() & glu::CONTEXT_ROBUST) != 0)
135 flags |= EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR;
136
137 if ((contextType.getFlags() & glu::CONTEXT_FORWARD_COMPATIBLE) != 0)
138 {
139 if (!glu::isContextTypeGLCore(contextType))
140 throw tcu::NotSupportedError("Only OpenGL core contexts can be forward-compatible");
141
142 flags |= EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR;
143 }
144
145 attribList.push_back(EGL_CONTEXT_FLAGS_KHR);
146 attribList.push_back(flags);
147 }
148
149 attribList.push_back(EGL_NONE);
150
151 EGLU_CHECK_CALL(egl, bindAPI(api));
152 context = egl.createContext(display, eglConfig, EGL_NO_CONTEXT, &(attribList[0]));
153 EGLU_CHECK_MSG(egl, "eglCreateContext()");
154
155 return context;
156 }
157
configMatches(const eglw::Library & egl,eglw::EGLDisplay display,eglw::EGLConfig eglConfig,const glu::RenderConfig & renderConfig)158 static bool configMatches (const eglw::Library& egl, eglw::EGLDisplay display, eglw::EGLConfig eglConfig, const glu::RenderConfig& renderConfig)
159 {
160 // \todo [2014-03-12 pyry] Check other attributes like double-buffer bit.
161
162 {
163 EGLint renderableType = 0;
164 EGLint requiredRenderable = apiRenderableType(renderConfig.type.getAPI());
165
166 EGLU_CHECK_CALL(egl, getConfigAttrib(display, eglConfig, EGL_RENDERABLE_TYPE, &renderableType));
167
168 if ((renderableType & requiredRenderable) == 0)
169 return false;
170 }
171
172 if (renderConfig.surfaceType != glu::RenderConfig::SURFACETYPE_DONT_CARE)
173 {
174 EGLint surfaceType = 0;
175 EGLint requiredSurface = 0;
176
177 switch (renderConfig.surfaceType)
178 {
179 case glu::RenderConfig::SURFACETYPE_WINDOW: requiredSurface = EGL_WINDOW_BIT; break;
180 case glu::RenderConfig::SURFACETYPE_OFFSCREEN_NATIVE: requiredSurface = EGL_PIXMAP_BIT; break;
181 case glu::RenderConfig::SURFACETYPE_OFFSCREEN_GENERIC: requiredSurface = EGL_PBUFFER_BIT; break;
182 default:
183 DE_ASSERT(false);
184 }
185
186 EGLU_CHECK_CALL(egl, getConfigAttrib(display, eglConfig, EGL_SURFACE_TYPE, &surfaceType));
187
188 if ((surfaceType & requiredSurface) == 0)
189 return false;
190 }
191
192 {
193 static const struct
194 {
195 int glu::RenderConfig::*field;
196 EGLint attrib;
197 } s_attribs[] =
198 {
199 { &glu::RenderConfig::id, EGL_CONFIG_ID },
200 { &glu::RenderConfig::redBits, EGL_RED_SIZE },
201 { &glu::RenderConfig::greenBits, EGL_GREEN_SIZE },
202 { &glu::RenderConfig::blueBits, EGL_BLUE_SIZE },
203 { &glu::RenderConfig::alphaBits, EGL_ALPHA_SIZE },
204 { &glu::RenderConfig::depthBits, EGL_DEPTH_SIZE },
205 { &glu::RenderConfig::stencilBits, EGL_STENCIL_SIZE },
206 { &glu::RenderConfig::numSamples, EGL_SAMPLES },
207 };
208
209 for (int attribNdx = 0; attribNdx < DE_LENGTH_OF_ARRAY(s_attribs); attribNdx++)
210 {
211 if (renderConfig.*s_attribs[attribNdx].field != glu::RenderConfig::DONT_CARE)
212 {
213 EGLint value = 0;
214 EGLU_CHECK_CALL(egl, getConfigAttrib(display, eglConfig, s_attribs[attribNdx].attrib, &value));
215 if (value != renderConfig.*s_attribs[attribNdx].field)
216 return false;
217 }
218 }
219 }
220
221 return true;
222 }
223
chooseConfig(const Library & egl,EGLDisplay display,const glu::RenderConfig & config)224 EGLConfig chooseConfig (const Library& egl, EGLDisplay display, const glu::RenderConfig& config)
225 {
226 const std::vector<EGLConfig> configs = eglu::getConfigs(egl, display);
227
228 for (vector<EGLConfig>::const_iterator iter = configs.begin(); iter != configs.end(); ++iter)
229 {
230 if (configMatches(egl, display, *iter, config))
231 return *iter;
232 }
233
234 throw tcu::NotSupportedError("Matching EGL config not found", DE_NULL, __FILE__, __LINE__);
235 }
236
237 }
238