# Changes -> 0.5.1

- 3ds
  - Remove Gfx values that are present in Backend Tamplate
  - Move to default Palladium Namespace
  - Set the Input Flags
- Desktop
  - Move to PD Namespace
  - Comment out old keyboard stuff
  - HidDriver needs a rewrite but is functional enough
- Core
  - Add u128 class (only used in input driver so far
- Drivers (Core)
  - Move Gfx to PD namespace
  - Move Vertex/Index Pos and Projection Mtx to Gfx template
  - Add Keyboard support with u128 to Hid
  - Add a Update func if no hiddriver is specified (to prevent crashes when requestign inputs)
- Image
   - Add RGBA -> BGRA support (used in windows bitmaps iirc)
- Lithium
  - Add Vertex/Index counters to drawlist
  - Add a LoadTTF from Mem func and let the loadfile func use PD::IO::LoadFile2Mem (looks cleaner)
  - Add LoadDefaultFont (which loads one of the integrated fonts if the PD_LI_INCLUDE_FONTS flag was passed on palaldium build) !!! Note that there are no fonts integrated yet due to i dont know how to handle licensing...
- UI7
  - Add MouseLeft support to Input handler
  - Use xy coords of the Viewport to create Menus inside it
  - Get num of Vertices/Indices out of FinalDrawList
  - Add some Palladium Info to metrics Menu
  - Readd Compiler string
- pdfm
  - New tool that creates fonts.cpp/fonts.hpp

include/pd/core/sl/sl.hpp

@@ -30,4 +30,5 @@ SOFTWARE.
 #include <pd/core/sl/pair.hpp>
 #include <pd/core/sl/stack.hpp>
 #include <pd/core/sl/tools.hpp>
-#include <pd/core/sl/vector.hpp>
+#include <pd/core/sl/u128.hpp>
+#include <pd/core/sl/vector.hpp>

include/pd/core/sl/u128.hpp

@@ -0,0 +1,125 @@
+#pragma once
+
+#include <pd/core/common.hpp>
+
+namespace PD {
+/**
+ * 128 Bit support for all platforms probably
+ * only used for flag checks in Keyboard/Mouse Input driver
+ */
+class u128 {
+ public:
+  u64 pLow = 0;
+  u64 pHigh = 0;
+
+  constexpr u128() : pLow(0), pHigh(0) {}
+  constexpr u128(u64 l, u64 h = 0) : pLow(l), pHigh(h) {}
+
+  /**
+   * Best way so far to create flags that go over 63
+   * like `1 << 65` is just `u128::Flag(65)`
+   */
+  constexpr static u128 Flag(u32 i) {
+    if (i < 64) {
+      return u128(1ULL << i, 0);
+    } else if (i < 128) {
+      return u128(0, 1ULL << (i - 64));
+    }
+    return u128();
+  }
+
+  u128 operator+(const u128& v) const {
+    u128 ret;
+    ret.pLow = pLow + v.pLow;
+    ret.pHigh = pHigh + v.pHigh + (ret.pLow < pLow);
+    return ret;
+  }
+
+  u128 operator&(const u128& v) const {
+    return u128(pLow & v.pLow, pHigh & v.pHigh);
+  }
+
+  u128 operator<<(u32 s) const {
+    if (s == 0) {
+      return *this;
+    }
+    if (s >= 128) {
+      return u128();
+    }
+    if (s >= 64) {
+      return u128(0, pLow << (s - 64));
+    }
+    return u128(pLow << s, (pHigh << s) | (pLow >> (64 - s)));
+  }
+
+  u128 operator>>(u32 s) const {
+    if (s == 0) {
+      return *this;
+    }
+    if (s >= 128) {
+      return u128();
+    }
+    if (s >= 64) {
+      return u128(pHigh >> (s - 64), 0);
+    }
+    return u128((pLow >> s) | (pHigh << (64 - s)), pHigh >> s);
+  }
+
+  u128& operator|=(const u128& v) {
+    pLow |= v.pLow;
+    pHigh |= v.pHigh;
+    return *this;
+  }
+
+  u128 operator|(const u128& v) const {
+    return u128(pLow | v.pLow, pHigh | v.pHigh);
+  }
+
+  u128& operator&=(const u128& v) {
+    pLow &= v.pLow;
+    pHigh &= v.pHigh;
+    return *this;
+  }
+
+  u128 operator~() const { return u128(~pLow, ~pHigh); }
+
+  /**
+   * Old why to make if checks possible
+   * Problem was that a operator& is required
+   * with u128 as result
+   */
+  // bool operator&(const u128& v) const {
+  //   return pLow & v.pLow || pHigh & v.pHigh;
+  // }
+
+  bool operator==(const u128& v) const {
+    return pLow == v.pLow && pHigh == v.pHigh;
+  }
+
+  /**
+   * Use explicit here to make sure it is only for checking and not for
+   * some error leading implicit bool assignments...
+   */
+  explicit operator bool() const { return pLow != 0 || pHigh != 0; }
+
+  /** Deprecated way to handle `flag & SomeFlag` */
+  bool Has(const u128& v) const { return pLow & v.pLow || pHigh & v.pHigh; }
+
+  bool operator!=(const u128& v) const { return !(*this == v); }
+};
+}  // namespace PD
+
+namespace std {
+/**
+ * Provide c++ STL support for unordered map to u128
+ */
+template <>
+struct hash<PD::u128> {
+  size_t operator()(const PD::u128& k) const {
+    // just combine hashes of the parts usign simple xor op
+    size_t h0 = std::hash<PD::u64>{}(k.pLow);
+    size_t h1 = std::hash<PD::u64>{}(k.pHigh);
+    return h0 ^ (h1 << 1);
+  }
+};
+}  // namespace std