1 files changed, 53 insertions, 0 deletions
diff --git a/src/mbgl/shader/uniform.hpp b/src/mbgl/shader/uniform.hpp
new file mode 100644
index 0000000000..8579ae22c7
--- /dev/null
+++ b/src/mbgl/shader/uniform.hpp
@@ -0,0 +1,53 @@
+#ifndef MBGL_SHADER_UNIFORM
+#define MBGL_SHADER_UNIFORM
+
+#include <mbgl/shader/shader.hpp>
+#include <mbgl/platform/gl.hpp>
+
+namespace mbgl {
+
+template <typename T>
+class Uniform {
+public:
+    Uniform(const GLchar* name, const Shader& shader)
+    : location(glGetUniformLocation(shader.program, name)) {}
+
+    void operator=(const T& t) {
+        if (current != t) {
+            current = t;
+            bind(t);
+        }
+    }
+
+private:
+    void bind(const T&);
+
+    T current;
+    GLint location;
+};
+
+template <size_t C, size_t R = C>
+class UniformMatrix {
+public:
+    typedef std::array<float, C*R> T;
+
+    UniformMatrix(const GLchar* name, const Shader& shader)
+    : location(glGetUniformLocation(shader.program, name)) {}
+
+    void operator=(const T& t) {
+        if (current != t) {
+            current = t;
+            bind(t);
+        }
+    }
+
+private:
+    void bind(const T&);
+
+    T current;
+    GLint location;
+};
+
+}
+
+#endif