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/* OpenGL helper functions */
#include <iostream>
#include "system-gl.h"
#include <boost/algorithm/string.hpp>
using namespace std;
using namespace boost;
void glew_dump() {
cerr << "GLEW version: " << glewGetString(GLEW_VERSION) << endl
<< "Renderer: " << (const char *)glGetString(GL_RENDERER) << endl
<< "Vendor: " << (const char *)glGetString(GL_VENDOR) << endl
<< "OpenGL version: " << (const char *)glGetString(GL_VERSION) << endl;
string extensions((const char *)glGetString(GL_EXTENSIONS));
replace_all( extensions, " ", "\n " );
cerr << "Extensions: " << endl << " " << extensions << endl
<< "Framebuffer and Stencil support:" << endl
<< " GLEW_ARB_framebuffer_object: " << (bool)GLEW_ARB_framebuffer_object << endl
<< " GLEW_EXT_framebuffer_object: " << (bool)GLEW_EXT_framebuffer_object << endl
<< " GLEW_EXT_packed_depth_stencil: " << (bool)GLEW_EXT_packed_depth_stencil << endl
<< " glewIsSupported(\"GL_ARB_framebuffer_object\"): " << (bool)glewIsSupported("GL_ARB_framebuffer_object") << endl
<< " glewIsSupported(\"GL_EXT_framebuffer_object\"): " << (bool)glewIsSupported("GL_EXT_framebuffer_object") << endl
<< " glewIsSupported(\"GL_EXT_packed_depth_stencil\"): " << (bool)glewIsSupported("GL_EXT_packed_depth_stencil") << endl;
};
const char * gl_errors[] = {
"GL_INVALID_ENUM", // 0x0500
"GL_INVALID_VALUE", // 0x0501
"GL_INVALID_OPERATION", // 0x0502
"GL_OUT_OF_MEMORY" // 0x0503
};
bool report_glerror(const char * task)
{
GLenum tGLErr = glGetError();
if (tGLErr != GL_NO_ERROR) {
if ( (tGLErr-0x500)<=3 && (tGLErr-0x500)>=0 )
cerr << "OpenGL error " << gl_errors[tGLErr-0x500] << " while " << task << endl;
else
cerr << "OpenGL error " << hex << tGLErr << " while " << task << endl;
return true;
}
return false;
}
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