v2.18.0v2.18.0

- **Command line arguments:**
   - (Add) Convert files: UVtools.exe -c \<inputfile\> \<outputfile1/ext1\> [outputfile2/ext2]
   - (Add) Extract files: UVtools.exe -e \<inputfile\> [output_folder]
   - https://github.com/sn4k3/UVtools#command-line-arguments
- **File formats:**
   - (Add) Implement TSMC (Two Stage Motor Control) for the supported formats
   - (Add) Implement 'Bottom retract speed' for the supported formats
   - (Add) LGS: Support for lgs120 and lg4k (#218)
   - (Add) CTB: Special/virtual file extensions .v2.ctb, .v3.ctb, .v4.ctb to force a convertion to the set version (2 to 4). The .ctb is Version 3 by default when creating/converting files
   - (Improvement) Better performance for file formats that decode images in sequential pixels groups
- **GCode:**
  - (Improvement) Better parsing of the movements / lifts
  - (Improvement) Better handling of lifts performed after cure the layer
  - (Improvement) More fail-safe checks and sanitize of gcode while parsing
- (Improvement) CTBv3: Enable per layer settings if disabled when fast save without reencode
- (Upgrade) .NET from 5.0.8 to 5.0.9
- (Fix) PrusaSlicer printer: Longer Orange 4k with correct resolution and display size
- (Fix) Odd error when changing properties too fast in multi-thread

1 files changed, 55 insertions, 0 deletions

diff --git a/UVtools.Core/Extensions/EmguExtensions.cs b/UVtools.Core/Extensions/EmguExtensions.cs
index d53b283..5968786 100644
--- a/UVtools.Core/Extensions/EmguExtensions.cs
+++ b/UVtools.Core/Extensions/EmguExtensions.cs
@@ -149,6 +149,11 @@ namespace UVtools.Core.Extensions
             return mat.GetDataSpan<byte>();
         }
 
+        public static unsafe Span<byte> GetDataByteSpan(this Mat mat, int length, int offset = 0)
+        {
+            return new(IntPtr.Add(mat.DataPointer, offset).ToPointer(), length <= 0 ? mat.GetLength() : length);
+        }
+
         /// <summary>
         /// Gets the data span to manipulate or read pixels given a length and offset
         /// </summary>
@@ -217,6 +222,56 @@ namespace UVtools.Core.Extensions
         }
         #endregion
 
+        #region Memory Fill
+
+        /// <summary>
+        /// Fill a mat span with a color
+        /// </summary>
+        /// <param name="mat">Mat to fill</param>
+        /// <param name="startPosition">Start position, this reference will increment by the <see cref="length"/></param>
+        /// <param name="length">Length to fill</param>
+        /// <param name="color">Color to fill with</param>
+        /// <param name="colorFillMinThreshold">Ignore and sum <see cref="startPosition"/> to <see cref="length"/> if <see cref="color"/> is less than the threshold value</param>
+        public static void FillSpan(this Mat mat, ref int startPosition, int length, byte color, byte colorFillMinThreshold = 1)
+        {
+            if (length <= 0) return;
+            if (color < colorFillMinThreshold) // Ignore threshold (mostly if blacks), spare cycles
+            {
+                startPosition += length;
+                return;
+            }
+
+            mat.GetDataByteSpan(length, startPosition).Fill(color);
+            startPosition += length;
+        }
+
+        /// <summary>
+        /// Fill a mat span with a color
+        /// </summary>
+        /// <param name="mat">Mat to fill</param>
+        /// <param name="x"></param>
+        /// <param name="y"></param>
+        /// <param name="length">Length to fill</param>
+        /// <param name="color">Color to fill with</param>
+        /// <param name="colorFillMinThreshold">Ignore and sum <see cref="startPosition"/> to <see cref="length"/> if <see cref="color"/> is less than the threshold value</param>
+        public static void FillSpan(this Mat mat, int x, int y, int length, byte color, byte colorFillMinThreshold = 1)
+        {
+            if (length <= 0 || color < colorFillMinThreshold) return; // Ignore threshold (mostly if blacks), spare cycles
+            mat.GetDataByteSpan(length, mat.GetPixelPos(x, y)).Fill(color);
+        }
+
+        /// <summary>
+        /// Fill a mat span with a color
+        /// </summary>
+        /// <param name="mat">Mat to fill</param>
+        /// <param name="position"></param>
+        /// <param name="length">Length to fill</param>
+        /// <param name="color">Color to fill with</param>
+        /// <param name="colorFillMinThreshold">Ignore and sum <see cref="startPosition"/> to <see cref="length"/> if <see cref="color"/> is less than the threshold value</param>
+        public static void FillSpan(this Mat mat, Point position, int length, byte color, byte colorFillMinThreshold = 1)
+            => mat.FillSpan(position.X, position.Y, length, color, colorFillMinThreshold);
+        #endregion
+
         #region Get/Set methods
         /// <summary>
         /// Gets the total length of this <see cref="Mat"/></param>