-#define GL_GLEXT_PROTOTYPES 1
-
#include <stdio.h>
#include <assert.h>
-#include <GL/gl.h>
-#include <GL/glext.h>
-
#include <math.h>
#include "util.h"
+#include "opengl.h"
void hsv2rgb(float h, float s, float v, float *r, float *g, float *b)
{
result[8] = a[2] * b[6] + a[5] * b[7] + a[8] * b[8];
}
+void multiply_3x3_matrix_float3(const Matrix3x3 M, float x0, float x1, float x2, float *y0, float *y1, float *y2)
+{
+ *y0 = M[0] * x0 + M[3] * x1 + M[6] * x2;
+ *y1 = M[1] * x0 + M[4] * x1 + M[7] * x2;
+ *y2 = M[2] * x0 + M[5] * x1 + M[8] * x2;
+}
+
void invert_3x3_matrix(const Matrix3x3 m, Matrix3x3 result)
{
double inv_det = 1.0 / (