commit 308b64833daaec450691c9e37f33f58b9786eb7a
parent 71547d6ff6ccd939d7f4a6d138ed0ddae1a68efb
Author: Matsuda Kenji <info@mtkn.jp>
Date: Tue, 27 Jun 2023 08:46:27 +0900
add math library
Diffstat:
| A | glm.c | | | 22 | ++++++++++++++++++++++ |
| A | glm.h | | | 22 | ++++++++++++++++++++++ |
| M | main.c | | | 1 | + |
3 files changed, 45 insertions(+), 0 deletions(-)
diff --git a/glm.c b/glm.c
@@ -0,0 +1,22 @@
+#include <stdlib.h>
+
+#include "glm.h"
+
+vec3
+*makeVec3(float *vals)
+{
+ return (vec3 *)vals;
+}
+
+vec4
+*makeVec4(float *vals)
+{
+ return (vec4 *)vals;
+}
+
+
+mat4
+*makeMat4(float *vals)
+{
+ return (mat4 *)vals;
+}
diff --git a/glm.h b/glm.h
@@ -0,0 +1,21 @@
+typedef float vec3[3];
+
+vec3 *makeVec3(float *);
+
+typedef float vec4[4];
+
+vec4 *makeVec4(float *);
+void freeVec4(vec4 *);
+
+
+typedef float mat4[16];
+// column major:
+// | 0 4 8 12 |
+// | 1 5 9 13 |
+// | 2 6 10 14 |
+// | 3 7 11 15 |
+
+mat4 *makeMat4(float *);
+void freeMat4(mat4 *);
+
+mat4 *translate(mat4 *, vec3 *);
+\ No newline at end of file
diff --git a/main.c b/main.c
@@ -7,6 +7,7 @@
#include <GLFW/glfw3.h>
#include "main.h"
+#include "glm.h"
#define STB_IMAGE_IMPLEMENTATION
#define STBI_NO_SIMD // TODO: confirm this workaround.
#include "stb_image.h"
