3 #if defined(__ANDROID__)
7 #elif !defined(__APPLE__)
8 #define GLX_GLXEXT_PROTOTYPES
11 #include <msp/strings/format.h>
12 #include <msp/strings/utils.h>
15 #include "extension.h"
18 #ifndef GL_VERSION_3_0
19 #define GL_NUM_EXTENSIONS 0x821D
22 #ifndef GL_VERSION_3_2
23 #define GL_CONTEXT_CORE_PROFILE_BIT 0x00000001
24 #define GL_CONTEXT_PROFILE_MASK 0x9126
32 Extension::Extension(const char *n, InitFunc f):
39 Extension::operator bool() const
43 support = init_func();
47 return support>UNSUPPORTED;
51 Require::Require(const Extension &ext)
54 throw unsupported_extension(ext.get_name());
58 bool is_supported(const string &ext)
63 static set<string> extensions;
64 static bool init_done = false;
68 const DeviceInfo &dev_info = Device::get_current().get_info();
69 if(dev_info.api==OPENGL && dev_info.api_version>=Version(3, 0))
71 typedef GLubyte *(APIENTRY *FPtr_glGetStringi)(GLenum, GLuint);
72 FPtr_glGetStringi glGetStringi = reinterpret_cast<FPtr_glGetStringi>(get_proc_address("glGetStringi"));
74 glGetIntegerv(GL_NUM_EXTENSIONS, &n_extensions);
75 for(int i=0; i<n_extensions; ++i)
76 extensions.insert(reinterpret_cast<const char *>(glGetStringi(GL_EXTENSIONS, i)));
80 if(const char *gl_ext = reinterpret_cast<const char *>(glGetString(GL_EXTENSIONS)))
82 vector<string> exts = split(gl_ext);
83 extensions.insert(exts.begin(), exts.end());
90 return extensions.count(ext);
93 bool is_supported(const Version &core_version, const Version &deprecated_version)
95 const Version &version = Device::get_current().get_info().api_version;
96 if(deprecated_version && version>=deprecated_version && get_gl_profile()==CORE_PROFILE)
98 return (version>=core_version);
101 bool is_disabled(const string &ext)
103 static set<string> disabled_exts;
104 static bool init_done = false;
108 if(const char *disable_ptr = getenv("MSPGL_DISABLE_EXTENSIONS"))
110 vector<string> disable = split(disable_ptr);
111 disabled_exts.insert(disable.begin(), disable.end());
114 if(const char *renderer_ptr = reinterpret_cast<const char *>(glGetString(GL_RENDERER)))
116 string renderer = renderer_ptr;
117 if(renderer.find("Radeon")!=string::npos || renderer.find("AMD")!=string::npos)
119 // The core primitive restart feature does not work either.
120 disabled_exts.insert("GL_MSP_primitive_restart");
122 /* AMD's uniform buffer objects only work with the core version of
124 if(Device::get_current().get_info().api_version<Version(2, 0))
125 disabled_exts.insert("GL_ARB_uniform_buffer_object");
132 return disabled_exts.count(ext);
135 inline GLProfile _get_gl_profile()
137 const DeviceInfo &dev_info = Device::get_current().get_info();
138 if(dev_info.api==OPENGL && dev_info.api_version>=Version(3, 0))
141 glGetIntegerv(GL_CONTEXT_PROFILE_MASK, &mask);
142 if(mask==GL_CONTEXT_CORE_PROFILE_BIT)
146 return COMPATIBILITY_PROFILE;
149 GLProfile get_gl_profile()
151 static GLProfile profile = _get_gl_profile();
155 inline Version _get_glsl_version()
157 const char *glsl_ver_ptr = reinterpret_cast<const char *>(glGetString(GL_SHADING_LANGUAGE_VERSION));
159 throw runtime_error("GLSL version not available");
161 string glsl_ver = glsl_ver_ptr;
162 if(!glsl_ver.compare(0, 18, "OpenGL ES GLSL ES "))
163 glsl_ver.erase(0, 18);
165 Version ver(glsl_ver.substr(0, glsl_ver.find(' ')));
167 if(const char *force_ver_ptr = getenv("MSPGL_FORCE_GLSL_VERSION"))
169 Version force_ver(force_ver_ptr);
177 const Version &get_glsl_version()
179 static Version version = _get_glsl_version();
183 ExtFunc *get_proc_address(const string &name)
186 return reinterpret_cast<ExtFunc *>(wglGetProcAddress(name.c_str()));
187 #elif defined(__APPLE__)
189 return 0; // Not supported
190 #elif defined(__ANDROID__)
191 return eglGetProcAddress(name.c_str());
193 return glXGetProcAddressARB(reinterpret_cast<const unsigned char *>(name.c_str()));