From: Ralf Jung <post@ralfj.de>
Date: Sun, 8 Sep 2013 19:37:10 +0000 (+0200)
Subject: print the GL version in use
X-Git-Url: https://git.ralfj.de/gltest.git/commitdiff_plain/a0cb14324fbd2791d62df09e8d10541f280b60ee

print the GL version in use
---

diff --git a/eglbackend.cpp b/eglbackend.cpp
index 0d5e5e6..cbe724c 100644
--- a/eglbackend.cpp
+++ b/eglbackend.cpp
@@ -81,7 +81,7 @@ VisualID EGLBackend::initialize(Display *xDisplay)
 			exitEglError("Failed to get EGL display");
 		if (eglInitialize(display, &eglMajor, &eglMinor) == EGL_FALSE)
 			exitEglError("Failed to initialize EGL");
-		printf("Using EGL version %d.%d\n", eglMajor, eglMinor);
+		printf("Using EGL version: %d.%d\n", eglMajor, eglMinor);
 		if (eglMajor == 1 && eglMinor < 3) {
 			fprintf(stderr, "Need at least EGL 1.3 to function properly\n");
 			exit(1);
diff --git a/glwindow.cpp b/glwindow.cpp
index ca6dbb9..64d0075 100644
--- a/glwindow.cpp
+++ b/glwindow.cpp
@@ -17,6 +17,7 @@
  */
 
 #include "glwindow.h"
+#include "glutil.h"
 
 #include <assert.h>
 #include <X11/Xutil.h>
@@ -60,6 +61,7 @@ void GLWindow::create(unsigned int width, unsigned int height)
 	this->width = width;
 	this->height = height;
 	backend->createContext(window);
+	printf("Using GL version: %s\n", glGetString(GL_VERSION));
 	initGL();
 	resizeGL(width, height);
 }
diff --git a/glxbackend.cpp b/glxbackend.cpp
index 97e6937..b238382 100644
--- a/glxbackend.cpp
+++ b/glxbackend.cpp
@@ -45,7 +45,7 @@ VisualID GLXBackend::initialize(Display *display)
 		// debugging: show version information
 		int glxMajor, glxMinor;
 		glXQueryVersion(display, &glxMajor, &glxMinor);
-		printf("Using GLX version %d.%d\n", glxMajor, glxMinor);
+		printf("Using GLX version: %d.%d\n", glxMajor, glxMinor);
 		// check for swap control functions
 		const char *extensions = glXQueryExtensionsString(display, DefaultScreen(display));
 		if (std::string(extensions).find("GLX_MESA_swap_control") != std::string::npos) {