initial commit, 4.5 stable

thirdparty/msdfgen/core/BitmapRef.hpp

@@ -0,0 +1,41 @@
+
+#pragma once
+
+#include "base.h"
+
+namespace msdfgen {
+
+/// Reference to a 2D image bitmap or a buffer acting as one. Pixel storage not owned or managed by the object.
+template <typename T, int N = 1>
+struct BitmapRef {
+
+    T *pixels;
+    int width, height;
+
+    inline BitmapRef() : pixels(NULL), width(0), height(0) { }
+    inline BitmapRef(T *pixels, int width, int height) : pixels(pixels), width(width), height(height) { }
+
+    inline T *operator()(int x, int y) const {
+        return pixels+N*(width*y+x);
+    }
+
+};
+
+/// Constant reference to a 2D image bitmap or a buffer acting as one. Pixel storage not owned or managed by the object.
+template <typename T, int N = 1>
+struct BitmapConstRef {
+
+    const T *pixels;
+    int width, height;
+
+    inline BitmapConstRef() : pixels(NULL), width(0), height(0) { }
+    inline BitmapConstRef(const T *pixels, int width, int height) : pixels(pixels), width(width), height(height) { }
+    inline BitmapConstRef(const BitmapRef<T, N> &orig) : pixels(orig.pixels), width(orig.width), height(orig.height) { }
+
+    inline const T *operator()(int x, int y) const {
+        return pixels+N*(width*y+x);
+    }
+
+};
+
+}