[core] Privatize various util headers (#4945)

1 files changed, 53 insertions, 0 deletions

diff --git a/src/mbgl/util/mat4.hpp b/src/mbgl/util/mat4.hpp
new file mode 100644
index 0000000000..ff8e65224c
--- /dev/null
+++ b/src/mbgl/util/mat4.hpp
@@ -0,0 +1,53 @@
+// This is an incomplete port of http://glmatrix.net/
+//
+// Copyright (c) 2013 Brandon Jones, Colin MacKenzie IV
+//
+// This software is provided 'as-is', without any express or implied warranty.
+// In no event will the authors be held liable for any damages arising from the
+// use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not claim
+//    that you wrote the original software. If you use this software in a
+//    product, an acknowledgment in the product documentation would be
+//    appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not be
+//    misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source distribution.
+
+#ifndef MBGL_UTIL_MAT4
+#define MBGL_UTIL_MAT4
+
+#include <mbgl/util/vec.hpp>
+
+#include <array>
+
+namespace mbgl {
+
+using mat4 = std::array<double, 16>;
+
+namespace matrix {
+
+void identity(mat4& out);
+bool invert(mat4& out, mat4& a);
+void ortho(mat4& out, double left, double right, double bottom, double top, double near, double far);
+void perspective(mat4& out, double fovy, double aspect, double near, double far);
+void copy(mat4& out, const mat4& a);
+void translate(mat4& out, const mat4& a, double x, double y, double z);
+void rotate_x(mat4& out, const mat4& a, double rad);
+void rotate_y(mat4& out, const mat4& a, double rad);
+void rotate_z(mat4& out, const mat4& a, double rad);
+void scale(mat4& out, const mat4& a, double x, double y, double z);
+void multiply(mat4& out, const mat4& a, const mat4& b);
+
+void transformMat4(vec4<double>& out, vec4<double>& a, mat4& m);
+
+} // namespace matrix
+} // namespace mbgl
+
+#endif // MBGL_UTIL_MAT4