#ifndef GLSLUTIL_H
#define GLSLUTIL_H

#ifdef GL_INCLUDE_FILE
#include GL_INCLUDE_FILE
#else
#include <GL/gl.h>
#endif

typedef float guMatrix4x4[4][4];

#ifdef __cplusplus
extern "C" {
#endif

void guMatrixLoadIdentity(guMatrix4x4 *m);
void guMatrixMult(guMatrix4x4 *m, guMatrix4x4 *a, guMatrix4x4 *b);
void guMatrixTranslate(guMatrix4x4 *m, float x, float y, float z);
void guMatrixScale(guMatrix4x4 *m, float x, float y, float z);
void guMatrixFrustum(guMatrix4x4 *m,
        float left, float right,
        float bottom, float top,
        float near, float far);

#ifdef __cplusplus
}
#endif

#endif