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Replace gluErrorString with ErrorString #36

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Replace gluErrorString with ErrorString #36

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27 changes: 26 additions & 1 deletion cyGL.h
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Original file line number Diff line number Diff line change
Expand Up @@ -158,6 +158,9 @@ class GL
//! Prints the OpenGL version to the given stream.
static void PrintVersion(std::ostream *outStream=&std::cout);

//! Returns OpenGL error in text format.
static const char* ErrorString(GLenum error);

//! Checks all previously triggered OpenGL errors and prints them to the given output stream.
static void CheckError( char const *sourcefile, int line, char const *call=nullptr, std::ostream *outStream=&std::cout );

Expand Down Expand Up @@ -1361,13 +1364,35 @@ inline void GL::PrintVersion(std::ostream *outStream)
}
}

inline const char *GL::ErrorString(GLenum error) {
switch (error) {
case GL_NO_ERROR:
return "GL_NO_ERROR: No error has been recorded";
case GL_INVALID_ENUM:
return "GL_INVALID_ENUM: An unacceptable value is specified for an enumerated argument. The offending command is ignored and has no other side effect than to set the error flag";
case GL_INVALID_VALUE:
return "GL_INVALID_VALUE: A numeric argument is out of range. The offending command is ignored and has no other side effect than to set the error flag";
case GL_INVALID_OPERATION:
return "GL_INVALID_OPERATION: The specified operation is not allowed in the current state. The offending command is ignored and has no other side effect than to set the error flag";
case GL_STACK_OVERFLOW:
return "GL_STACK_OVERFLOW: An attempt has been made to perform an operation that would cause an internal stack to overflow";
case GL_STACK_UNDERFLOW:
return "GL_STACK_UNDERFLOW: An attempt has been made to perform an operation that would cause an internal stack to underflow";
case GL_OUT_OF_MEMORY:
return "GL_OUT_OF_MEMORY: There is not enough memory left to execute the command. The state of the GL is undefined, except for the state of the error flags, after this error is recorded";
default:
return "Unknown error";
}
}


inline void GL::CheckError( char const *sourcefile, int line, char const *call, std::ostream *outStream )
{
GLenum error;
while ( (error = glGetError()) != GL_NO_ERROR) {
*outStream << "OpenGL ERROR: " << sourcefile << " (line " << line << "): ";
if ( call ) *outStream << call << " triggered ";
*outStream << gluErrorString(error) << std::endl;
*outStream << ErrorString(error) << std::endl;
}
}

Expand Down