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56 lines
2 KiB
C
56 lines
2 KiB
C
#ifndef GD_MATH_H
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#define GD_MATH_H
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#include <PR/ultratypes.h>
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#include "gd_types.h"
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#include "macros.h"
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struct Row4 {
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f32 c0, c1, c2, c3;
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};
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struct InvMat4 {
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struct Row4 r0, r1, r2, r3;
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};
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enum GdRotAxis {
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GD_X_AXIS,
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GD_Y_AXIS,
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GD_Z_AXIS
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};
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// Needed for gd_math.c itself.
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void gd_adjunct_mat4f(Mat4f *src, Mat4f *dst);
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f32 gd_mat4f_det(Mat4f *mtx);
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f32 gd_3x3_det(f32 r0c0, f32 r0c1, f32 r0c2,
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f32 r1c0, f32 r1c1, f32 r1c2,
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f32 r2c0, f32 r2c1, f32 r2c2);
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f32 gd_2x2_det(f32 a, f32 b, f32 c, f32 d);
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void gd_mat4f_lookat(Mat4f *mtx, f32 xFrom, f32 yFrom, f32 zFrom, f32 xTo, f32 yTo, f32 zTo,
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f32 zColY, f32 yColY, f32 xColY);
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void gd_scale_mat4f_by_vec3f(Mat4f *mtx, struct GdVec3f *vec);
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void gd_rot_mat_about_vec(Mat4f *mtx, struct GdVec3f *vec);
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void gd_add_vec3f_to_mat4f_offset(Mat4f *mtx, struct GdVec3f *vec);
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void gd_create_origin_lookat(Mat4f *mtx, struct GdVec3f *vec, f32 roll);
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f32 gd_clamp_f32(f32 a, f32 b);
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void gd_clamp_vec3f(struct GdVec3f *vec, f32 limit);
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void gd_rot_2d_vec(f32 deg, f32 *x, f32 *y);
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void gd_absrot_mat4(Mat4f *mtx, s32 axisnum, f32 ang);
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f32 gd_vec3f_magnitude(struct GdVec3f *vec);
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s32 gd_normalize_vec3f(struct GdVec3f *vec);
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void gd_cross_vec3f(struct GdVec3f *a, struct GdVec3f *b, struct GdVec3f *dst);
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f32 gd_dot_vec3f(struct GdVec3f *a, struct GdVec3f *b);
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void gd_inverse_mat4f(Mat4f *src, Mat4f *dst);
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void gd_create_rot_mat_angular(Mat4f *mtx, struct GdVec3f *vec, f32 ang);
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void gd_set_identity_mat4(Mat4f *mtx);
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void gd_copy_mat4f(const Mat4f *src, Mat4f *dst);
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void gd_rotate_and_translate_vec3f(struct GdVec3f *vec, const Mat4f *mtx);
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void gd_mat4f_mult_vec3f(struct GdVec3f *vec, const Mat4f *mtx);
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void gd_mult_mat4f(const Mat4f *mA, const Mat4f *mB, Mat4f *dst);
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void gd_print_vec(UNUSED const char *prefix, const struct GdVec3f *vec);
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void gd_print_bounding_box(UNUSED const char *prefix, const struct GdBoundingBox *p);
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void gd_print_mtx(UNUSED const char *prefix, const Mat4f *mtx);
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#endif // GD_MATH_H
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