From 2025b357576a242f9e184aece49e5b866cd52bb8 Mon Sep 17 00:00:00 2001
From: Recep Aslantas <info@recp.me>
Date: Thu, 6 Jun 2019 13:18:31 +0300
Subject: [PATCH] struct: struct vesion of swizzle funcs

---
 include/cglm/struct/vec3.h | 18 ++++++++++++++++++
 include/cglm/struct/vec4.h | 18 ++++++++++++++++++
 2 files changed, 36 insertions(+)

diff --git a/include/cglm/struct/vec3.h b/include/cglm/struct/vec3.h
index fbe716d..4e8d677 100644
--- a/include/cglm/struct/vec3.h
+++ b/include/cglm/struct/vec3.h
@@ -58,6 +58,7 @@
    CGLM_INLINE vec3s glms_vec3_ortho(vec3s v);
    CGLM_INLINE vec3s glms_vec3_clamp(vec3s v, float minVal, float maxVal);
    CGLM_INLINE vec3s glms_vec3_lerp(vec3s from, vec3s to, float t);
+   CGLM_INLINE vec3s glms_vec3_swizzle(vec3s v, int mask);
 
  Convenient:
    CGLM_INLINE vec3s glms_cross(vec3s a, vec3s b);
@@ -747,4 +748,21 @@ glms_normalize(vec3s v) {
   return v;
 }
 
+/*!
+ * @brief swizzle vector components
+ *
+ * you can use existin masks e.g. GLM_XXX, GLM_ZYX
+ *
+ * @param[in]  v    source
+ * @param[in]  mask mask
+ * @returns swizzled vector
+ */
+CGLM_INLINE
+vec3s
+glms_vec3_swizzle(vec3s v, int mask) {
+  vec3s dest;
+  glm_vec3_swizzle(v.raw, mask, dest.raw);
+  return dest;
+}
+
 #endif /* cglms_vec3s_h */
diff --git a/include/cglm/struct/vec4.h b/include/cglm/struct/vec4.h
index 4fe75ba..0b403a9 100644
--- a/include/cglm/struct/vec4.h
+++ b/include/cglm/struct/vec4.h
@@ -48,6 +48,7 @@
    CGLM_INLINE vec4s glms_vec4_clamp(vec4s v, float minVal, float maxVal);
    CGLM_INLINE vec4s glms_vec4_lerp(vec4s from, vec4s to, float t);
    CGLM_INLINE vec4s glms_vec4_cubic(float s);
+   CGLM_INLINE vec4s glms_vec4_swizzle(vec4s v, int mask);
  */
 
 #ifndef cglms_vec4s_h
@@ -577,4 +578,21 @@ glms_vec4_cubic(float s) {
   return r;
 }
 
+/*!
+ * @brief swizzle vector components
+ *
+ * you can use existin masks e.g. GLM_XXXX, GLM_WZYX
+ *
+ * @param[in]  v    source
+ * @param[in]  mask mask
+ * @returns swizzled vector
+ */
+CGLM_INLINE
+vec4s
+glms_vec4_swizzle(vec4s v, int mask) {
+  vec4s dest;
+  glm_vec4_swizzle(v.raw, mask, dest.raw);
+  return dest;
+}
+
 #endif /* cglms_vec4s_h */