initialize update

Author: mkalkbrenner

include/DMDUtil/DMD.h

@@ -108,20 +108,20 @@ class DMDUTILAPI DMD
 #pragma pack(push, 1)  // Align to 1-byte boundaries, important for sending over socket.
   struct Update
   {
-    Mode mode;
-    AlphaNumericLayout layout;
-    int depth;
-    uint8_t data[256 * 64 * 3];
-    uint16_t segData[256 * 64];  // RGB16 or segment data or SerumV1 palette
+    Mode mode = Mode::Data;  // int
+    AlphaNumericLayout layout = AlphaNumericLayout::NoLayout;  // int
+    int depth = 2;
+    uint8_t data[256 * 64 * 3] = {0};
+    uint16_t segData[256 * 64] = {0};  // RGB16 or segment data or SerumV1 palette
     uint16_t segData2[128];
-    bool hasData;
-    bool hasSegData;
-    bool hasSegData2;
-    uint8_t r;
-    uint8_t g;
-    uint8_t b;
-    uint16_t width;
-    uint16_t height;
+    bool hasData = false;
+    bool hasSegData = false;
+    bool hasSegData2 = false;
+    uint8_t r = 255;
+    uint8_t g = 255;
+    uint8_t b = 255;
+    uint16_t width = 128;
+    uint16_t height = 32;
 
     DMDUTILAPI void convertToHostByteOrder();
     DMDUTILAPI Update toNetworkByteOrder() const;

src/DMD.cpp

@@ -150,7 +150,7 @@ DMD::DMD()
   m_pSerum = nullptr;
   m_pZeDMD = nullptr;
   m_pPUPDMD = nullptr;
-  m_pZeDMD = nullptr;
+
   m_pZeDMDThread = nullptr;
   m_pLevelDMDThread = nullptr;
   m_pRGB24DMDThread = nullptr;
@@ -429,10 +429,6 @@ void DMD::UpdateData(const uint8_t* pData, int depth, uint16_t width, uint16_t h
                      Mode mode, bool buffered)
 {
   auto dmdUpdate = std::make_shared<Update>();
-  dmdUpdate->mode = mode;
-  dmdUpdate->depth = depth;
-  dmdUpdate->width = width;
-  dmdUpdate->height = height;
   if (pData)
   {
     memcpy(dmdUpdate->data, pData, (size_t)width * height * (mode == Mode::RGB16 ? 2 : (mode == Mode::RGB24 ? 3 : 1)));
@@ -442,6 +438,10 @@ void DMD::UpdateData(const uint8_t* pData, int depth, uint16_t width, uint16_t h
   {
     dmdUpdate->hasData = false;
   }
+  dmdUpdate->mode = mode;
+  dmdUpdate->depth = depth;
+  dmdUpdate->width = width;
+  dmdUpdate->height = height;
   dmdUpdate->hasSegData = false;
   dmdUpdate->hasSegData2 = false;
   dmdUpdate->r = r;