Merge "Fix error mask generation in checkLineContinuity" into nougat-cts-dev am:...
[platform/upstream/VK-GL-CTS.git] / framework / opengl / gluRenderContext.hpp
1 #ifndef _GLURENDERCONTEXT_HPP
2 #define _GLURENDERCONTEXT_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 OpenGL ES rendering context.
24  *//*--------------------------------------------------------------------*/
25
26 #include "tcuDefs.hpp"
27
28 // glw::GenericFuncType
29 #include "glwFunctionLoader.hpp"
30
31 namespace tcu
32 {
33 class CommandLine;
34 class Platform;
35 class RenderTarget;
36 }
37
38 namespace glw
39 {
40 class Functions;
41 class FunctionLoader;
42 }
43
44 namespace glu
45 {
46
47 class ContextType;
48 class ContextInfo;
49 struct RenderConfig;
50
51 enum Profile
52 {
53         PROFILE_ES = 0,                 //!< OpenGL ES
54         PROFILE_CORE,                   //!< OpenGL Core Profile
55         PROFILE_COMPATIBILITY,  //!< OpenGL Compatibility Profile
56
57         PROFILE_LAST
58 };
59
60 enum ContextFlags
61 {
62         CONTEXT_ROBUST                          = (1<<0),       //!< Robust context
63         CONTEXT_DEBUG                           = (1<<1),       //!< Debug context
64         CONTEXT_FORWARD_COMPATIBLE      = (1<<2),       //!< Forward-compatible context
65         CONTEXT_NO_ERROR                        = (1<<3)    //!< No error context
66 };
67
68 inline ContextFlags     operator| (ContextFlags a, ContextFlags b)      { return ContextFlags((deUint32)a|(deUint32)b); }
69 inline ContextFlags     operator& (ContextFlags a, ContextFlags b)      { return ContextFlags((deUint32)a&(deUint32)b); }
70 inline ContextFlags     operator~ (ContextFlags a)                                      { return ContextFlags(~(deUint32)a);                    }
71
72 /*--------------------------------------------------------------------*//*!
73  * \brief Rendering API version and profile.
74  *//*--------------------------------------------------------------------*/
75 class ApiType
76 {
77 public:
78                                                 ApiType                 (void) : m_bits(pack(0, 0, PROFILE_LAST)) {}
79                                                 ApiType                 (int major, int minor, Profile profile) : m_bits(pack(major, minor, profile)) {}
80
81         int                                     getMajorVersion (void) const    { return int((m_bits>>MAJOR_SHIFT)                      & ((1u<<MAJOR_BITS)-1u));       }
82         int                                     getMinorVersion (void) const    { return int((m_bits>>MINOR_SHIFT)                      & ((1u<<MINOR_BITS)-1u));       }
83         Profile                         getProfile              (void) const    { return Profile((m_bits>>PROFILE_SHIFT)        & ((1u<<PROFILE_BITS)-1u));     }
84
85         bool                            operator==              (ApiType other) const   { return m_bits == other.m_bits;                                                }
86         bool                            operator!=              (ApiType other) const   { return m_bits != other.m_bits;                                                }
87
88         deUint32                        getPacked               (void) const    { return m_bits;                                                                                                }
89
90         // Shorthands
91         static ApiType          es                              (int major, int minor)  { return ApiType(major, minor, PROFILE_ES);                             }
92         static ApiType          core                    (int major, int minor)  { return ApiType(major, minor, PROFILE_CORE);                   }
93         static ApiType          compatibility   (int major, int minor)  { return ApiType(major, minor, PROFILE_COMPATIBILITY);  }
94
95 protected:
96                                                 ApiType                 (deUint32 bits) : m_bits(bits) {}
97         static ApiType          fromBits                (deUint32 bits) { return ApiType(bits); }
98
99         static deUint32         pack                    (int major, int minor, Profile profile);
100
101         deUint32                        m_bits;
102
103         enum
104         {
105                 MAJOR_BITS              = 4,
106                 MINOR_BITS              = 4,
107                 PROFILE_BITS    = 2,
108                 TOTAL_API_BITS  = MAJOR_BITS+MINOR_BITS+PROFILE_BITS,
109
110                 MAJOR_SHIFT             = 0,
111                 MINOR_SHIFT             = MAJOR_SHIFT+MAJOR_BITS,
112                 PROFILE_SHIFT   = MINOR_SHIFT+MINOR_BITS
113         };
114 } DE_WARN_UNUSED_TYPE;
115
116 inline deUint32 ApiType::pack (int major, int minor, Profile profile)
117 {
118         deUint32 bits = 0;
119
120         DE_ASSERT((deUint32(major) & ~((1<<MAJOR_BITS)-1)) == 0);
121         DE_ASSERT((deUint32(minor) & ~((1<<MINOR_BITS)-1)) == 0);
122         DE_ASSERT((deUint32(profile) & ~((1<<PROFILE_BITS)-1)) == 0);
123
124         bits |= deUint32(major) << MAJOR_SHIFT;
125         bits |= deUint32(minor) << MINOR_SHIFT;
126         bits |= deUint32(profile) << PROFILE_SHIFT;
127
128         return bits;
129 }
130
131 /*--------------------------------------------------------------------*//*!
132  * \brief Rendering context type.
133  *
134  * ContextType differs from API type by adding context flags. They are
135  * crucial in for example determining when GL core context supports
136  * certain API version (forward-compatible bit).
137  *
138  * \note You should NEVER compare ContextTypes against each other, as
139  *       you most likely don't want to take flags into account. For example
140  *       the test code almost certainly doesn't want to check that you have
141  *       EXACTLY ES3.1 context with debug, but without for example robustness.
142  *//*--------------------------------------------------------------------*/
143 class ContextType : private ApiType
144 {
145 public:
146                                                 ContextType             (void) {}
147                                                 ContextType             (int major, int minor, Profile profile, ContextFlags flags = ContextFlags(0));
148         explicit                        ContextType             (ApiType apiType, ContextFlags flags = ContextFlags(0));
149
150         ApiType                         getAPI                  (void) const    { return ApiType::fromBits(m_bits & ((1u<<TOTAL_API_BITS)-1u));                 }
151         ContextFlags            getFlags                (void) const    { return ContextFlags((m_bits>>FLAGS_SHIFT)     & ((1u<<FLAGS_BITS)-1u));       }
152
153         using ApiType::getMajorVersion;
154         using ApiType::getMinorVersion;
155         using ApiType::getProfile;
156
157 protected:
158         static deUint32         pack                    (deUint32 apiBits, ContextFlags flags);
159
160         enum
161         {
162                 FLAGS_BITS                      = 4,
163                 TOTAL_CONTEXT_BITS      = TOTAL_API_BITS+FLAGS_BITS,
164                 FLAGS_SHIFT                     = TOTAL_API_BITS
165         };
166 } DE_WARN_UNUSED_TYPE;
167
168 inline ContextType::ContextType (int major, int minor, Profile profile, ContextFlags flags)
169         : ApiType(major, minor, profile)
170 {
171         m_bits = pack(m_bits, flags);
172 }
173
174 inline ContextType::ContextType (ApiType apiType, ContextFlags flags)
175         : ApiType(apiType)
176 {
177         m_bits = pack(m_bits, flags);
178 }
179
180 inline deUint32 ContextType::pack (deUint32 apiBits, ContextFlags flags)
181 {
182         deUint32 bits = apiBits;
183
184         DE_ASSERT((deUint32(flags) & ~((1u<<FLAGS_BITS)-1u)) == 0);
185
186         bits |= deUint32(flags) << FLAGS_SHIFT;
187
188         return bits;
189 }
190
191 inline bool             isContextTypeES                         (ContextType type)      { return type.getAPI().getProfile() == PROFILE_ES;                              }
192 inline bool             isContextTypeGLCore                     (ContextType type)      { return type.getAPI().getProfile() == PROFILE_CORE;                    }
193 inline bool             isContextTypeGLCompatibility(ContextType type)  { return type.getAPI().getProfile() == PROFILE_COMPATIBILITY;   }
194 bool                    contextSupports                         (ContextType ctxType, ApiType requiredApiType);
195
196 const char*             getApiTypeDescription           (ApiType type);
197
198 /*--------------------------------------------------------------------*//*!
199  * \brief Rendering context abstraction.
200  *//*--------------------------------------------------------------------*/
201 class RenderContext
202 {
203 public:
204                                                                                 RenderContext                   (void) {}
205         virtual                                                         ~RenderContext                  (void) {}
206
207         //! Get context type. Must match to type given to ContextFactory::createContext().
208         virtual ContextType                                     getType                                 (void) const    = DE_NULL;
209
210         //! Get GL function table. Should be filled with all core entry points for context type.
211         virtual const glw::Functions&           getFunctions                    (void) const    = DE_NULL;
212
213         //! Get render target information.
214         virtual const tcu::RenderTarget&        getRenderTarget                 (void) const    = DE_NULL;
215
216         //! Do post-render actions (swap buffers for example).
217         virtual void                                            postIterate                             (void)                  = DE_NULL;
218
219         //! Get default framebuffer.
220         virtual deUint32                                        getDefaultFramebuffer   (void) const { return 0; }
221
222         //! Get extension function address.
223         virtual glw::GenericFuncType            getProcAddress                  (const char* name) const;
224
225         //! Make context current in thread. Optional to support.
226         virtual void                                            makeCurrent                             (void);
227
228 private:
229                                                                                 RenderContext                   (const RenderContext& other); // Not allowed!
230         RenderContext&                                          operator=                               (const RenderContext& other); // Not allowed!
231 };
232
233 // Utilities
234
235 RenderContext*          createRenderContext                             (tcu::Platform& platform, const tcu::CommandLine& cmdLine, const RenderConfig& config);
236 RenderContext*          createDefaultRenderContext              (tcu::Platform& platform, const tcu::CommandLine& cmdLine, ApiType apiType);
237
238 void                            initCoreFunctions                               (glw::Functions* dst, const glw::FunctionLoader* loader, ApiType apiType);
239 void                            initExtensionFunctions                  (glw::Functions* dst, const glw::FunctionLoader* loader, ApiType apiType, int numExtensions, const char* const* extensions);
240
241 // \note initFunctions() and initExtensionFunctions() without explicit extension list
242 //               use glGetString* to query list of extensions, so it needs current GL context.
243 void                            initFunctions                                   (glw::Functions* dst, const glw::FunctionLoader* loader, ApiType apiType);
244 void                            initExtensionFunctions                  (glw::Functions* dst, const glw::FunctionLoader* loader, ApiType apiType);
245
246 bool                            hasExtension                                    (const glw::Functions& gl, ApiType apiType, const std::string& extension);
247
248 } // glu
249
250 #endif // _GLURENDERCONTEXT_HPP