#include <vector>
#include <GL/glx.h>
#include <GL/glxext.h>
+#include <msp/strings/lexicalcast.h>
#include <msp/strings/utils.h>
#include "glcontext.h"
#include "display_private.h"
priv->glxwnd = glXCreateWindow(dpy, fb_configs[0], priv->subwnd, 0);
- if(opts.forward_compatible || opts.gl_version_major)
+ if(opts.forward_compatible || opts.gl_version_major!=GLOptions::DEFAULT_VERSION)
{
if(!extensions.count("GLX_ARB_create_context") || !extensions.count("GLX_ARB_get_proc_address"))
throw unsupported_gl_mode(opts);
+ unsigned gl_version_major = opts.gl_version_major;
+ unsigned gl_version_minor = opts.gl_version_minor;
+ if(opts.gl_version_major==GLOptions::LATEST_VERSION)
+ {
+ ContextHandle probe_context = glXCreateNewContext(dpy, fb_configs[0], GLX_RGBA_TYPE, 0, true);
+ glXMakeContextCurrent(dpy, priv->glxwnd, priv->glxwnd, probe_context);
+
+ const char *gl_ver_ptr = reinterpret_cast<const char *>(glGetString(GL_VERSION));
+ if(!gl_ver_ptr)
+ throw unsupported_gl_mode(opts);
+
+ string gl_ver = gl_ver_ptr;
+ vector<string> parts = split(gl_ver.substr(0, gl_ver.find(' ')), '.');
+
+ gl_version_major = lexical_cast<unsigned>(parts[0]);
+ gl_version_minor = lexical_cast<unsigned>(parts[1]);
+
+ glXMakeContextCurrent(dpy, 0, 0, 0);
+ glXDestroyContext(dpy, probe_context);
+ }
+
vector<int> ctx_attribs;
ctx_attribs.push_back(GLX_RENDER_TYPE);
ctx_attribs.push_back(GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB);
}
+ if(opts.core_profile)
+ {
+ ctx_attribs.push_back(GLX_CONTEXT_PROFILE_MASK_ARB);
+ ctx_attribs.push_back(GLX_CONTEXT_CORE_PROFILE_BIT_ARB);
+ }
+
if(opts.gl_version_major)
{
ctx_attribs.push_back(GLX_CONTEXT_MAJOR_VERSION_ARB);
- ctx_attribs.push_back(opts.gl_version_major);
+ ctx_attribs.push_back(gl_version_major);
ctx_attribs.push_back(GLX_CONTEXT_MINOR_VERSION_ARB);
- ctx_attribs.push_back(opts.gl_version_minor);
+ ctx_attribs.push_back(gl_version_minor);
}
ctx_attribs.push_back(0);