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#include <iostream>
#include <map>
#include <set>
#include <vector>
#include <GLFW/glfw3.h>
#include <glbinding/AbstractFunction.h>
#include <glbinding/Version.h>
#include <glbinding/glbinding.h>
#include <glbinding/Binding.h>
#include <glbinding/gl/gl.h>
#include <glbinding-aux/Meta.h>
#include <glbinding-aux/ContextInfo.h>
#include <glbinding-aux/ValidVersions.h>
#include <glbinding-aux/types_to_string.h>
using namespace gl;
using namespace glbinding;
void error(int errnum, const char * errmsg)
{
std::cerr << errnum << ": " << errmsg << std::endl;
}
inline void coutFunc(const AbstractFunction * func)
{
std::cout << "\t(0x" << reinterpret_cast<void *>(func->address()) << ") " << func->name() << std::endl;
}
int main()
{
glfwSetErrorCallback(error);
if (!glfwInit())
return 1;
glfwDefaultWindowHints();
glfwWindowHint(GLFW_VISIBLE, false);
#ifdef SYSTEM_DARWIN
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, true);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
#endif
auto window = glfwCreateWindow(320, 240, "", nullptr, nullptr);
if (!window)
{
glfwTerminate();
return -1;
}
glfwHideWindow(window);
glfwMakeContextCurrent(window);
glbinding::initialize(glfwGetProcAddress, true);
// gather available extensions
auto resolved = 0u;
auto assigned = 0u;
std::set<std::string> unknownExts;
const auto supportedExts = aux::ContextInfo::extensions(unknownExts);
const auto allExts = aux::Meta::extensions();
// sort extensions by version
auto extsByVer = std::map<Version, std::set<GLextension>>();
auto suppByVer = std::map<Version, int>(); // num supported exts by version
auto versions = aux::Meta::versions();
versions.insert(Version{}); // provide NONE Version for extensions without associated version
for (auto & version : versions)
{
const auto extensions = aux::Meta::extensions(version);
if (extensions.empty())
continue;
extsByVer[version] = extensions;
suppByVer[version] = 0;
}
// iterate over all extensions by version and show functions
auto funcsByExt = std::map<GLextension, std::set<const AbstractFunction *>>();
auto nonExtFuncs = std::set<const AbstractFunction *>();
for (auto * function : Binding::functions())
{
if (function->isResolved())
++resolved;
if (aux::Meta::extensions(function->name()).empty())
{
nonExtFuncs.insert(function);
}
else
{
const auto extensions = aux::Meta::extensions(function->name());
for (const auto & extension : extensions)
funcsByExt[extension].insert(function);
++assigned;
}
}
// print all extensions with support info and functions
for (auto i : extsByVer)
{
std::cout << std::endl << std::endl << "[" << i.first << " EXTENSIONS]" << std::endl;
for (auto & ext : i.second)
{
const auto supported = supportedExts.find(ext) != supportedExts.cend();
if (supported)
++suppByVer[i.first];
std::cout << std::endl << aux::Meta::getString(ext) << (supported ? " (supported)" : "") << std::endl;
if (funcsByExt.find(ext) != funcsByExt.cend())
for (auto func : funcsByExt[ext])
coutFunc(func);
}
}
// show unknown extensions
std::cout << std::endl << std::endl << "[EXTENSIONS NOT COVERED BY GLBINDING]" << std::endl << std::endl;
for (const auto & ext : unknownExts)
std::cout << ext << std::endl;
// show non ext functions
std::cout << std::endl << std::endl << "[NON-EXTENSION OR NOT-COVERED-EXTENSION FUNCTIONS]" << std::endl << std::endl;
for (const AbstractFunction * func : nonExtFuncs)
coutFunc(func);
// print summary
std::cout << std::endl << std::endl << "[SUMMARY]" << std::endl << std::endl;
std::cout << "# Functions: " << resolved << " of " << Binding::size() << " resolved"
<< " (" << (Binding::size() - resolved) << " unresolved)" << std::endl;
std::cout << " " << assigned << " assigned to extensions";
std::cout << "." << std::endl;
std::cout << std::endl;
std::cout << "# Extensions: " << (supportedExts.size() + unknownExts.size()) << " of " << allExts.size() + unknownExts.size() << " supported"
<< " (" << unknownExts.size() << " of which are unknown to glbinding)" << std::endl;
for (auto p : extsByVer)
{
const auto & numSupported = suppByVer[p.first];
std::cout << " # " << p.first << " assoc.: " << numSupported << " / " << p.second.size() << std::endl;
}
std::cout << std::endl;
std::cout << "# Missing Feature Extensions and Functions: " << std::endl;
auto unsupportedExtensions = std::set<GLextension>{};
auto unsupportedFunctions = std::set<AbstractFunction *>{};
for (auto p : extsByVer)
{
if (p.first.isNull())
continue;
unsupportedExtensions.clear();
unsupportedFunctions.clear();
const auto supported = aux::ContextInfo::supported(p.first, unsupportedExtensions, unsupportedFunctions);
if (supported)
continue;
if (!unsupportedExtensions.empty())
{
std::cout << " # " << p.first << " assoc. Extensions:" << std::endl;
for (const auto extension : unsupportedExtensions)
std::cout << " " << aux::Meta::getString(extension) << std::endl;
}
if(!unsupportedFunctions.empty())
{
std::cout << " # " << p.first << " assoc. Functions:" << std::endl;
for (const auto function : unsupportedFunctions)
std::cout << " " << function->name() << std::endl;
}
}
// print some gl infos (query)
std::cout << std::endl
<< "OpenGL Version: " << aux::ContextInfo::version() << std::endl
<< "OpenGL Vendor: " << aux::ContextInfo::vendor() << std::endl
<< "OpenGL Renderer: " << aux::ContextInfo::renderer() << std::endl
<< "OpenGL Revision: " << aux::Meta::glRevision() << " (gl.xml)" << std::endl << std::endl;
glfwTerminate();
return 0;
}
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