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#include "ultra64.h"
void guOrthoF(float m[4][4], float l, float r, float b, float t, float n, float f, float scale) {
int i;
int j;
guMtxIdentF(m);
m[0][0] = 2 / (r - l);
m[1][1] = 2 / (t - b);
m[2][2] = -2 / (f - n);
m[3][0] = -(r + l) / (r - l);
m[3][1] = -(t + b) / (t - b);
m[3][2] = -(f + n) / (f - n);
m[3][3] = 1;
for (i = 0; i < 4; i++) {
for (j = 0; j < 4; j++) {
m[i][j] *= scale;
}
}
}
void guOrtho(Mtx* m, float l, float r, float b, float t, float n, float f, float scale) {
float mf[4][4];
guOrthoF(mf, l, r, b, t, n, f, scale);
guMtxF2L(mf, m);
}
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