shared_ptr<GlShader> getShader(const string& filename, GLenum shaderType) {
string f = filename;
if (g_Gl2Compatible) { // if compatible, change -gl3 to -gl2 in the end of the filename
size_t pos = f.rfind("-gl3");
if (pos != string::npos) {
f[pos+3] = '2';
}
}
GlShaderMap::key_type key(f, shaderType);
GlShaderMap::iterator i = shaderMap.find(key);
if (i == shaderMap.end()) {
shared_ptr<GlShader> shader(new GlShader(shaderType));
try {
readAndCompileSingleShader(*shader, f.c_str());
}
catch (const runtime_error & error ) {
std::cout << error.what() << endl;
messageFile << "compile shader:" << error.what() << endl;
}
shaderMap[key] = shader;
return shader;
}
else {
return i->second;
}
}
shared_ptr<GlShader> getShader(const string& filename, GLenum shaderType) {
string f = filename;
if (g_Gl2Compatible) { // optionally change -gl3 to -gl3 in the end of the filename
size_t pos = f.rfind("-gl3");
if (pos != string::npos) {
f[pos+3] = '2';
}
}
GlShaderMap::key_type key(f, shaderType);
GlShaderMap::iterator i = shaderMap.find(key);
if (i == shaderMap.end()) {
shared_ptr<GlShader> shader(new GlShader(shaderType));
readAndCompileSingleShader(*shader, f.c_str());
shaderMap[key] = shader;
return shader;
}
else {
return i->second;
}
}