G.U.L.L.S. rebuilt to use PlatformIO

include/GIFMatrix.h

@@ -0,0 +1,89 @@
+#ifndef GIFMATRIX_H
+#define GIFMATRIX_H
+
+#include "SD.h"
+#include "MatrixAnimation.h"
+
+class GIFMatrix : public MatrixAnimation {
+  public: 
+    GIFMatrix(LEDHAL2D* _matrix, char* _refName, long _updateTime, File* _dataFile) :
+      MatrixAnimation(_matrix, _refName, _updateTime), dataFile(_dataFile) {
+        STANDARDHEADER[0] = 0x47;
+        STANDARDHEADER[1] = 0x49;
+        STANDARDHEADER[2] = 0x46;
+        STANDARDHEADER[3] = 0x38;
+        STANDARDHEADER[4] = 0x39;
+        STANDARDHEADER[5] = 0x61;
+
+        if(!headerOK()) {
+            // I can't throw exceptions, need to do something here...
+        }
+
+        decodeLogicalDescriptor();
+
+        preImageDataBytes = 6 + 7 + (globalColorTableExists ? globalColorTableSize * 3 : 0);
+
+        lastCode = _dataFile->read();
+      }
+
+    void initialize() {
+        // Reinitialization needs to be tested, this may not work correctly
+        dataFile->seek(preImageDataBytes);
+        resetTimer();
+    }
+
+    void execute();
+    bool headerOK();
+    void decodeLogicalDescriptor();
+    void decodeGlobalColorTable();
+    void decodeGraphicControlExtension();
+    void decodeApplicationExtension();
+    void decodeImageDescriptor();
+    void buildCodeTable();
+    void drawForArray(CRGB* colorTable, uint16_t* indexes, uint16_t startingXPosition, uint16_t imageWidth);
+    uint16_t readWord();
+    
+  private:
+    File*
+      dataFile;
+    uint16_t
+      preImageDataBytes,
+      currentXPosition,
+      currentYPosition,
+      gifCanvasWidth,
+      gitCanvasHeight,
+      currentImageLeft,
+      currentImageTop,
+      currentImageWidth,
+      currentImageHeight,
+      currentCCCode,
+      currentEOICode;
+    uint16_t**
+      currentCodeTable;
+    long
+      delayTime;
+    uint8_t
+      lastCode,
+      originalColorResolution,
+      globalColorTableSize,
+      globalColorTableBackgroundColorIndex,
+      disposalMethodValue,
+      userInputFlag,
+      transparentColorFlag,
+      transparentColorIndex,
+      localColorTableSize,
+      currentMinimumCodeSize;
+    bool
+      globalColorTableExists,
+      globalColorTableSorted,
+      localColorTableExists,
+      interlaceFlag,
+      localColorTableSorted;
+    CRGB*
+      globalColorTable,
+      localColorTable;
+    byte
+      STANDARDHEADER[6];
+};
+
+#endif