From 1b9e769b3f25a9a12a874c1357ca8c91a5b90b4c Mon Sep 17 00:00:00 2001
From: lisyarus <lisyarus@gmail.com>
Date: Mon, 15 Feb 2021 22:38:30 +0300
Subject: [PATCH] Support quaternion uniforms

---
 libs/gfx/include/psemek/gfx/program.hpp | 3 +++
 libs/gfx/source/program.cpp             | 5 +++++
 2 files changed, 8 insertions(+)

diff --git a/libs/gfx/include/psemek/gfx/program.hpp b/libs/gfx/include/psemek/gfx/program.hpp
index dcd047cb..b1066b9a 100644
--- a/libs/gfx/include/psemek/gfx/program.hpp
+++ b/libs/gfx/include/psemek/gfx/program.hpp
@@ -6,6 +6,7 @@
 #include <psemek/geom/point.hpp>
 #include <psemek/geom/matrix.hpp>
 #include <psemek/geom/interval.hpp>
+#include <psemek/geom/quaternion.hpp>
 
 #include <unordered_map>
 #include <string_view>
@@ -92,6 +93,8 @@ namespace psemek::gfx
 			template <typename T>
 			void operator = (geom::interval<T> const & i);
 
+			void operator = (geom::quaternion<float> const & q);
+
 		private:
 			GLint location_;
 		};
diff --git a/libs/gfx/source/program.cpp b/libs/gfx/source/program.cpp
index 39261f3f..8c88187f 100644
--- a/libs/gfx/source/program.cpp
+++ b/libs/gfx/source/program.cpp
@@ -210,6 +210,11 @@ namespace psemek::gfx
 		gl::Uniform2f(location_, i.min, i.max);
 	}
 
+	void program::uniform_proxy::operator = (geom::quaternion<float> const & q)
+	{
+		(*this) = q.coords;
+	}
+
 	static std::string annotated_source(std::string_view source)
 	{
 		std::ostringstream os;