mirror of https://github.com/vitalif/openscad
93 lines
2.5 KiB
C++
93 lines
2.5 KiB
C++
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/* OpenGL helper functions */
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#include <algorithm>
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#include <iostream>
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#include <vector>
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#include <sstream>
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#include <string>
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#include "system-gl.h"
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#include <boost/algorithm/string.hpp>
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#include <boost/format.hpp>
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using namespace std;
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using namespace boost;
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double gl_version()
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{
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string tmp((const char*)glGetString( GL_VERSION ));
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vector<string> strs;
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split(strs, tmp, is_any_of("."));
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stringstream out;
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if ( strs.size() >= 2)
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out << strs[0] << "." << strs[1];
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else
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out << "0.0";
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double d;
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out >> d;
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return d;
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}
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string glew_extensions_dump()
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{
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std::string tmp;
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if ( gl_version() >= 3.0 ) {
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GLint numexts = 0;
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glGetIntegerv(GL_NUM_EXTENSIONS, &numexts);
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for ( int i=0;i<numexts;i++ ) {
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tmp += (const char *) glGetStringi(GL_EXTENSIONS, i);
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tmp += " ";
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}
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} else {
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tmp = (const char *) glGetString(GL_EXTENSIONS);
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}
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vector<string> extensions;
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split( extensions, tmp, is_any_of(" "));
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sort( extensions.begin(), extensions.end() );
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stringstream out;
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out << "GL Extensions:";
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for ( unsigned int i=0;i<extensions.size();i++ )
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out << extensions[i] << "\n";
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return out.str();
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}
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string glew_dump()
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{
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GLint rbits, gbits, bbits, abits, dbits, sbits;
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glGetIntegerv(GL_RED_BITS, &rbits);
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glGetIntegerv(GL_GREEN_BITS, &gbits);
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glGetIntegerv(GL_BLUE_BITS, &bbits);
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glGetIntegerv(GL_ALPHA_BITS, &abits);
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glGetIntegerv(GL_DEPTH_BITS, &dbits);
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glGetIntegerv(GL_STENCIL_BITS, &sbits);
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stringstream out;
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out << "GLEW version: " << glewGetString(GLEW_VERSION)
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<< "\nOpenGL Version: " << (const char *)glGetString(GL_VERSION)
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<< "\nGL Renderer: " << (const char *)glGetString(GL_RENDERER)
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<< "\nGL Vendor: " << (const char *)glGetString(GL_VENDOR)
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<< boost::format("\nRGBA(%d%d%d%d), depth(%d), stencil(%d)") %
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rbits % gbits % bbits % abits % dbits % sbits;
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out << "\nGL_ARB_framebuffer_object: "
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<< (glewIsSupported("GL_ARB_framebuffer_object") ? "yes" : "no")
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<< "\nGL_EXT_framebuffer_object: "
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<< (glewIsSupported("GL_EXT_framebuffer_object") ? "yes" : "no")
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<< "\nGL_EXT_packed_depth_stencil: "
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<< (glewIsSupported("GL_EXT_packed_depth_stencil") ? "yes" : "no")
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<< "\n";
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return out.str();
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};
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bool report_glerror(const char * function)
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{
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GLenum tGLErr = glGetError();
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if (tGLErr != GL_NO_ERROR) {
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std::ostringstream hexErr;
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hexErr << hex << tGLErr;
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cerr << "OpenGL error 0x" << hexErr.str() << ": " << gluErrorString(tGLErr) << " after " << function << endl;
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return true;
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}
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return false;
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}
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