Add overclocked bins

demo2.cpp

@@ -1332,6 +1332,9 @@ int main()
   cFloor = 10;
   cCeiling = 10;
 
+  for (uint8_t i = 0; i < SUBSAMPLED_WIDTH; ++i)
+    zBuffer[i] = RCL_INFINITY; 
+
   player.setPositionSquare(0,5);
   player.mCamera.direction = 3 * RCL_UNITS_PER_SQUARE / 4;
   player.mCamera.height = RCL_CAMERA_COLL_HEIGHT_BELOW;

demo3.cpp

@@ -473,7 +473,7 @@ uint16_t backgroundColumn = 0; ///< Precomputed background column.
 inline void pixelFunc(RCL_PixelInfo *pixel)
 {
   uint8_t color = 0;
-  int16_t intensity = 0;
+  uint8_t intensity = 0;
 
   if (pixel->isWall)
   {
@@ -482,7 +482,7 @@ inline void pixelFunc(RCL_PixelInfo *pixel)
       intensity = pixel->depth / (RCL_UNITS_PER_SQUARE * 2) +
       ((pixel->hit.direction == 0 || pixel->hit.direction == 2) ? 4 : 0);
 
-      color = addIntensity(squareColors[pixel->hit.type],intensity);
+      color = plusIntensity(squareColors[pixel->hit.type],intensity);
     }
     else
       color = 30;
@@ -492,7 +492,7 @@ inline void pixelFunc(RCL_PixelInfo *pixel)
     if (!pixel->isHorizon)
     {
       intensity = pixel->depth / RCL_UNITS_PER_SQUARE;
-      color = addIntensity(floorColors[(pixel->height / RCL_UNITS_PER_SQUARE) % FLOOR_COLORS],intensity);
+      color = plusIntensity(floorColors[(pixel->height / RCL_UNITS_PER_SQUARE) % FLOOR_COLORS],intensity);
     }
     else
       color = floorColors[0];

general.hpp

@@ -200,22 +200,27 @@ void initPalette()
 
 /**
   Adds given intensity to a color.
-
-  @param color input color
-  @param intensity intensity to add, can be negative, will be clamped
-  @return new color
 */
-inline uint8_t addIntensity(uint8_t color, int16_t intensity)
+inline uint8_t addIntensity(uint8_t color, int8_t add)
 {
-  int16_t newValue = (color & 0b00001111) + intensity; // value as in HSV
+  uint8_t newValue = color + add;
   
-  if (newValue <= 0)
-    return 0; // black
+  if ((newValue >> 4) == (color >> 4))
+    return newValue;
+  else
+    return add > 0 ? (color | 0x0f) : 0;
+}
 
-  if (newValue >= 16)
-    newValue = 15;
+static inline uint8_t plusIntensity(uint8_t color, uint8_t plus)
+{
+  uint8_t newValue = color + plus;
+  return ((newValue >> 4) == (color >> 4)) ? newValue : (color | 0x0f);
+}
 
-  return (color & 0b11110000) | newValue;
+static inline uint8_t minusIntensity(uint8_t color, uint8_t minus)
+{
+  uint8_t newValue = color - minus;
+  return ((newValue >> 4) == (color >> 4)) ? newValue : 0;
 }
 
 /**
@@ -238,7 +243,7 @@ inline uint8_t sampleImage(const unsigned char *image, RCL_Unit x, RCL_Unit y)
   Draws a scaled sprite on screen in an optimized way. The sprite has to be
   square in resolution for that.
 */
-void inline drawSpriteSquare(const unsigned char *sprite, int16_t x, int16_t y, RCL_Unit depth, int16_t size, int16_t intensity)
+static void inline drawSpriteSquare(const unsigned char *sprite, int16_t x, int16_t y, RCL_Unit depth, int16_t size, int16_t intensity)
 {
   if (size < 0 || size > 200 || // let's not mess up with the incoming array
       sprite[0] != sprite[1])   // only draw square sprites