libftm matrix, dynamic vector instead of fixed size

7 files changed, 192 insertions, 0 deletions

diff --git a/vendor/libftm/src/vec/ftm_vecadd.c b/vendor/libftm/src/vec/ftm_vecadd.c
new file mode 100644
index 0000000..e776d21
--- /dev/null
+++ b/vendor/libftm/src/vec/ftm_vecadd.c
@@ -0,0 +1,28 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ftm_vecadd.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: charles <charles.cabergs@gmail.com>        +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2020/05/11 12:39:47 by charles           #+#    #+#             */
+/*   Updated: 2020/05/11 12:39:49 by charles          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftm_vec.h"
+
+t_ftmvec	*ftm_vecadd(t_ftmvec *dst, t_ftmvec *other)
+{
+	size_t	i;
+
+	if (dst->size != other->size)
+		return (NULL);
+	i = 0;
+	while (i < dst->size)
+	{
+		dst->v[i] += other->v[i];
+		i++;
+	}
+	return (dst);
+}
diff --git a/vendor/libftm/src/vec/ftm_veccross.c b/vendor/libftm/src/vec/ftm_veccross.c
new file mode 100644
index 0000000..48dda5f
--- /dev/null
+++ b/vendor/libftm/src/vec/ftm_veccross.c
@@ -0,0 +1,33 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ftm_veccross.c                                     :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: charles <charles.cabergs@gmail.com>        +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2020/05/09 21:20:41 by charles           #+#    #+#             */
+/*   Updated: 2020/05/11 12:43:33 by charles          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftm_vec.h"
+
+/*
+** s1 = a2 * b - a * b2
+** s2 = a * b1 - a1 * b
+** s = a1 * b2 - a2 * b1
+*/
+
+t_ftmvec	*ftm_veccross(t_ftmvec *a, t_ftmvec *b)
+{
+	t_ftmvec	*dst;
+
+	if (a->size != 3 || b->size != 3)
+		return (NULL);
+	if ((dst = ftm_vecnew(3)) == NULL)
+		return (NULL);
+	dst->v[0] = a->v[1] * b->v[2] - a->v[2] * b->v[1];
+	dst->v[1] = a->v[2] * b->v[0] - a->v[0] * b->v[2];
+	dst->v[2] = a->v[0] * b->v[1] - a->v[1] * b->v[0];
+	return (dst);
+}
diff --git a/vendor/libftm/src/vec/ftm_vecdestroy.c b/vendor/libftm/src/vec/ftm_vecdestroy.c
new file mode 100644
index 0000000..38caf23
--- /dev/null
+++ b/vendor/libftm/src/vec/ftm_vecdestroy.c
@@ -0,0 +1,19 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ftm_vecdestroy.c                                   :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: charles <charles.cabergs@gmail.com>        +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2020/05/11 12:46:01 by charles           #+#    #+#             */
+/*   Updated: 2020/05/11 12:49:39 by charles          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftm_vec.h"
+
+void	ftm_vecdestroy(t_ftmvec *vec)
+{
+	free(vec->v);
+	free(vec);
+}
diff --git a/vendor/libftm/src/vec/ftm_vecdot.c b/vendor/libftm/src/vec/ftm_vecdot.c
new file mode 100644
index 0000000..c2f03f0
--- /dev/null
+++ b/vendor/libftm/src/vec/ftm_vecdot.c
@@ -0,0 +1,30 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ftm_vecdot.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: charles <charles.cabergs@gmail.com>        +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2020/05/09 21:06:09 by charles           #+#    #+#             */
+/*   Updated: 2020/05/11 12:48:12 by charles          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftm_vec.h"
+
+float		ftm_vecdot(t_ftmvec *a, t_ftmvec *b)
+{
+	size_t	i;
+	float	total;
+
+	if (a->size != b->size)
+		return (0.0);
+	total = 0.0;
+	i = 0;
+	while (i < a->size)
+	{
+		total += a->v[i] * b->v[i];
+		i++;
+	}
+	return (total);
+}
diff --git a/vendor/libftm/src/vec/ftm_vecnew.c b/vendor/libftm/src/vec/ftm_vecnew.c
new file mode 100644
index 0000000..422b01d
--- /dev/null
+++ b/vendor/libftm/src/vec/ftm_vecnew.c
@@ -0,0 +1,28 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ftm_vecnew.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: charles <charles.cabergs@gmail.com>        +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2020/05/11 12:44:38 by charles           #+#    #+#             */
+/*   Updated: 2020/05/11 12:49:30 by charles          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftm_vec.h"
+
+t_ftmvec	*ftm_vecnew(size_t size)
+{
+	t_ftmvec	*dst;
+
+	if ((dst = malloc(sizeof(t_ftmvec))) == NULL)
+		return (NULL);
+	if ((dst->v = malloc(sizeof(float) * size)) == NULL)
+	{
+		free(dst);
+		return (NULL);
+	}
+	dst->size = size;
+	return (dst);
+}
diff --git a/vendor/libftm/src/vec/ftm_vecscale.c b/vendor/libftm/src/vec/ftm_vecscale.c
new file mode 100644
index 0000000..508a245
--- /dev/null
+++ b/vendor/libftm/src/vec/ftm_vecscale.c
@@ -0,0 +1,26 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ftm_vecscale.c                                     :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: charles <charles.cabergs@gmail.com>        +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2020/05/11 12:41:11 by charles           #+#    #+#             */
+/*   Updated: 2020/05/11 12:48:43 by charles          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftm_vec.h"
+
+t_ftmvec	*ftm_vecscale(t_ftmvec *dst, float scalar)
+{
+	size_t	i;
+
+	i = 0;
+	while (i < dst->size)
+	{
+		dst->v[i] *= scalar;
+		i++;
+	}
+	return (dst);
+}
diff --git a/vendor/libftm/src/vec/ftm_vecsub.c b/vendor/libftm/src/vec/ftm_vecsub.c
new file mode 100644
index 0000000..0ac8ae1
--- /dev/null
+++ b/vendor/libftm/src/vec/ftm_vecsub.c
@@ -0,0 +1,28 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ftm_vecsub.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: charles <charles.cabergs@gmail.com>        +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2020/05/11 12:39:42 by charles           #+#    #+#             */
+/*   Updated: 2020/05/11 12:49:58 by charles          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftm_vec.h"
+
+t_ftmvec	*ftm_vecsub(t_ftmvec *dst, t_ftmvec *other)
+{
+	size_t	i;
+
+	if (dst->size != other->size)
+		return (NULL);
+	i = 0;
+	while (i < dst->size)
+	{
+		dst->v[i] -= other->v[i];
+		i++;
+	}
+	return (dst);
+}