OpenGL/state_tracker/state_error.c

	state_error.c revision c6eaa029f87be54c58d0559d7f5c02c227bcaec0
/* Copyright (c) 2001, Stanford University
 * All rights reserved
 *
 * See the file LICENSE.txt for information on redistributing this software.
 */

#include "state/cr_stateerror.h"
#include "state/cr_statetypes.h"
#include "state.h"
#include "cr_error.h"
#include "cr_environment.h"
#include <stdarg.h>
#include <stdio.h>

void crStateError( int line, const char *file, GLenum error, const char *format, ... )
{
    CRContext *g = GetCurrentContext();
    char errstr[8096];
    va_list args;

    g->error = error;

    if (1||crGetenv("CR_DEBUG"))
    {
        char *glerr;
        va_start( args, format );
        vsprintf( errstr, format, args );
        va_end( args );

        switch (error) {
        case GL_NO_ERROR:
            glerr = "GL_NO_ERROR";
            break;
        case GL_INVALID_VALUE:
            glerr = "GL_INVALID_VALUE";
            break;
        case GL_INVALID_ENUM:
            glerr = "GL_INVALID_ENUM";
            break;
        case GL_INVALID_OPERATION:
            glerr = "GL_INVALID_OPERATION";
            break;
        case GL_STACK_OVERFLOW:
            glerr = "GL_STACK_OVERFLOW";
            break;
        case GL_STACK_UNDERFLOW:
            glerr = "GL_STACK_UNDERFLOW";
            break;
        case GL_OUT_OF_MEMORY:
            glerr = "GL_OUT_OF_MEMORY";
            break;
        case GL_TABLE_TOO_LARGE:
            glerr = "GL_TABLE_TOO_LARGE";
            break;
        default:
            glerr = "unknown";
            break;
        }

        crWarning( "OpenGL error in %s, line %d: %s: %s\n",
                             file, line, glerr, errstr );
    }
}


GLenum STATE_APIENTRY crStateGetError(void)
{
    CRContext *g = GetCurrentContext();
    GLenum e = g->error;

    if (g->current.inBeginEnd)
    {
        crStateError( __LINE__, __FILE__, GL_INVALID_OPERATION,
                                    "glStateGetError() called between glBegin/glEnd" );
        return 0;
    }

    g->error = GL_NO_ERROR;

    return e;
}