scale RGB24DMD

Author: mkalkbrenner

include/DMDUtil/RGB24DMD.h

@@ -19,7 +19,7 @@ class DMDUTILAPI RGB24DMD
   RGB24DMD(uint16_t width, uint16_t height);
   ~RGB24DMD();
 
-  virtual void Update(uint8_t* pRGB24Data);
+  virtual void Update(uint8_t* pRGB24Data, uint16_t width = 0, uint16_t height = 0);
   int GetWidth() const { return m_width; }
   int GetHeight() const { return m_height; }
   int GetLength() const { return m_length; }

src/DMD.cpp

@@ -1491,6 +1491,7 @@ void DMD::RGB24DMDThread()
   uint8_t palette[PALETTE_SIZE] = {0};
   uint8_t renderBuffer[256 * 64] = {0};
   uint8_t rgb24Data[256 * 64 * 3] = {0};
+  uint8_t rgb24DataScaled[256 * 64 * 3] = {0};
 
   (void)m_dmdFrameReady.load(std::memory_order_acquire);
   (void)m_stopFlag.load(std::memory_order_acquire);
@@ -1539,7 +1540,8 @@ void DMD::RGB24DMDThread()
 
             for (RGB24DMD* pRGB24DMD : m_rgb24DMDs)
             {
-              if (pRGB24DMD->GetLength() == length * 3) pRGB24DMD->Update(rgb24Data);
+              pRGB24DMD->Update(rgb24Data, m_pUpdateBufferQueue[bufferPosition]->width,
+                                m_pUpdateBufferQueue[bufferPosition]->height);
             }
             // Reset renderBuffer in case the mode changes for the next frame to ensure that memcmp() will detect it.
             memset(renderBuffer, 0, sizeof(renderBuffer));
@@ -1608,7 +1610,8 @@ void DMD::RGB24DMDThread()
 
             for (RGB24DMD* pRGB24DMD : m_rgb24DMDs)
             {
-              if (pRGB24DMD->GetLength() == length * 3) pRGB24DMD->Update(rgb24Data);
+              pRGB24DMD->Update(rgb24Data, m_pUpdateBufferQueue[bufferPosition]->width,
+                                m_pUpdateBufferQueue[bufferPosition]->height);
             }
           }
         }
@@ -1634,7 +1637,8 @@ void DMD::RGB24DMDThread()
                  (pRGB24DMD->GetWidth() < 256 && m_pUpdateBufferQueue[bufferPosition]->mode == Mode::SerumV2_64_32)))
               continue;
 
-            if (pRGB24DMD->GetLength() == length * 3) pRGB24DMD->Update(rgb24Data);
+            pRGB24DMD->Update(rgb24Data, m_pUpdateBufferQueue[bufferPosition]->width,
+                              m_pUpdateBufferQueue[bufferPosition]->height);
           }
         }
       }

src/RGB24DMD.cpp

@@ -4,6 +4,8 @@
 #include <cstring>
 #include <string>
 
+#include "FrameUtil.h"
+
 namespace DMDUtil
 {
 
@@ -22,11 +24,31 @@ RGB24DMD::RGB24DMD(uint16_t width, uint16_t height)
 
 RGB24DMD::~RGB24DMD() { free(m_pData); }
 
-void RGB24DMD::Update(uint8_t* pData)
+void RGB24DMD::Update(uint8_t* pData, uint16_t width, uint16_t height)
 {
-  memcpy(m_pData, pData, m_length);
-
-  m_update = true;
+  if (width == 0) width = m_width;
+  if (height == 0) height = m_height;
+
+  if (width == m_width && height == m_height)
+  {
+    memcpy(m_pData, pData, m_length);
+    m_update = true;
+  }
+  else if (width == 128 && height == 16 && m_width == 128 && m_height == 32)
+  {
+    FrameUtil::Helper::Center(m_pData, 128, 32, pData, 128, 16, 24);
+    m_update = true;
+  }
+  else if (height == 64 && m_height == 32)
+  {
+    FrameUtil::Helper::ScaleDown(m_pData, 128, 32, pData, width, height, 24);
+    m_update = true;
+  }
+  else if (height == 32 && m_height == 64)
+  {
+    FrameUtil::Helper::ScaleUp(m_pData, pData, width, height, 24);
+    m_update = true;
+  }
 }
 
 uint8_t* RGB24DMD::GetData()