+++ /dev/null
-/* $Id$
-
-This file is part of libmspgl
-Copyright © 2007, 2009-2010 Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
-#include <set>
-#ifndef WIN32
-#define GLX_GLXEXT_PROTOTYPES
-#include <GL/glx.h>
-#endif
-#include <msp/strings/formatter.h>
-#include <msp/strings/utils.h>
-#include "arb_shader_objects.h"
-#include "arb_vertex_buffer_object.h"
-#include "arb_vertex_program.h"
-#include "arb_vertex_shader.h"
-#include "ext_framebuffer_object.h"
-#include "except.h"
-#include "extension.h"
-#include "gl.h"
-#include "version_1_2.h"
-#include "version_1_3.h"
-
-using namespace std;
-
-namespace Msp {
-namespace GL {
-
-bool is_supported(const string &ext)
-{
- static set<string> extensions;
- static bool init_done = false;
-
- if(!init_done)
- {
- if(const char *gl_ext = reinterpret_cast<const char *>(glGetString(GL_EXTENSIONS)))
- {
- vector<string> exts = split(gl_ext);
- extensions.insert(exts.begin(), exts.end());
- }
-
- /* XXX Conceptually a bit weird place for this, but I couldn't really come up
- with anything better that would still be transparent. */
- if(extensions.count("GL_ARB_shader_objects"))
- init_arb_shader_objects();
- if(extensions.count("GL_ARB_vertex_shader"))
- init_arb_vertex_shader();
- if(extensions.count("GL_ARB_vertex_program"))
- init_arb_vertex_program();
- if(extensions.count("GL_EXT_framebuffer_object"))
- init_ext_framebuffer_object();
- if(extensions.count("GL_ARB_vertex_buffer_object"))
- init_arb_vertex_buffer_object();
-
- init_done = true;
- }
-
- return extensions.count(ext);
-}
-
-const Version &get_gl_version()
-{
- static Version version;
- static bool init_done = false;
-
- if(!init_done)
- {
- string gl_ver = reinterpret_cast<const char *>(glGetString(GL_VERSION));
- vector<string> parts = split(gl_ver.substr(0, gl_ver.find(' ')), '.');
- version.major = lexical_cast<unsigned>(parts[0]);
- version.minor = lexical_cast<unsigned>(parts[1]);
-
- unsigned combined = version.major*0x100+version.minor;
- if(combined>=0x102)
- init_version_1_2();
- if(combined>=0x103)
- init_version_1_3();
-
- init_done = true;
- }
-
- return version;
-}
-
-void require_extension(const string &ext)
-{
- if(!is_supported(ext))
- throw UnsupportedExtension(ext);
-}
-
-void require_version(unsigned a, unsigned b)
-{
- const Version &ver = get_gl_version();
- if(ver.major<a || (ver.major==a && ver.minor<b))
- throw UnsupportedExtension(format("OpenGL %d.%d", a, b));
-}
-
-ExtFunc *get_proc_address(const string &name)
-{
-#ifndef WIN32
- return glXGetProcAddressARB(reinterpret_cast<const unsigned char *>(name.c_str()));
-#else
- return reinterpret_cast<ExtFunc *>(wglGetProcAddress(name.c_str()));
-#endif
-}
-
-} // namespace GL
-} // namespace Msp