Add 2D chart data

SomeChartsUi/src/data/IChart2DData.cs

@@ -0,0 +1,176 @@
+using MathStuff.vectors;
+
+namespace SomeChartsUi.data; 
+
+public interface IChart2DManagedData<T> {
+    public void GetValues(int2 start, int2 count, int downsample, T[] dest);
+    public T GetValue(int2 i);
+    public int2 GetLength();
+    public int GetHashCode();
+}
+
+public interface IChart2DData<T> : IChart2DManagedData<T> where T : unmanaged {
+    public unsafe void GetValues(int2 start, int2 count, int downsample, T* dest);
+}
+
+public class ArrayChart2DManagedData<T> : IChart2DManagedData<T> {
+    public readonly T[] data;
+    public readonly int2 length;
+
+    public ArrayChart2DManagedData(T[] data, int2 length) {
+        this.data = data;
+        this.length = length;
+    }
+
+    public void GetValues(int2 start, int2 count, int downsample, T[] dest) {
+        for (int x = 0; x < count.x; x++) {
+            int xDestInd = x * count.y;
+            int xSrcInd = (start.x + (x << downsample)) * count.y;
+            
+            for (int y = 0; y < count.y; y++) {
+                int ySrc = start.y + (y << downsample);
+                
+                int indexDest = xDestInd + y;
+                int indexSrc = xSrcInd + ySrc;
+                dest[indexDest] = data[indexSrc];
+            }
+        }
+    }
+    public T GetValue(int2 i) => data[i.x * length.y + i.y];
+    public int2 GetLength() => length;
+}
+
+public class ArrayChart2DData<T> : ArrayChart2DManagedData<T>, IChart2DData<T> where T : unmanaged {
+    public ArrayChart2DData(T[] data, int2 length) : base(data, length) { }
+    
+    public unsafe void GetValues(int2 start, int2 count, int downsample, T* dest) {
+        for (int x = 0; x < count.x; x++) {
+            int xSrcInd = (start.x + (x << downsample)) * count.y;
+            
+            for (int y = 0; y < count.y; y++) {
+                int ySrc = start.y + (y << downsample);
+                
+                int indexSrc = xSrcInd + ySrc;
+                *dest++ = data[indexSrc];
+            }
+        }
+    }
+}
+
+public class CollectionChart2DManagedData<T> : IChart2DManagedData<T> {
+    public readonly IEnumerable<T> data;
+    public readonly int2 length;
+
+    public CollectionChart2DManagedData(T[] data, int2 length) {
+        this.data = data;
+        this.length = length;
+    }
+
+    public void GetValues(int2 start, int2 count, int downsample, T[] dest) {
+        for (int x = 0; x < count.x; x++) {
+            int xDestInd = x * count.y;
+            int xSrcInd = (start.x + (x << downsample)) * count.y;
+            
+            for (int y = 0; y < count.y; y++) {
+                int ySrc = start.y + (y << downsample);
+                
+                int indexDest = xDestInd + y;
+                int indexSrc = xSrcInd + ySrc;
+                dest[indexDest] = data.ElementAt(indexSrc);
+            }
+        }
+    }
+
+    public T GetValue(int2 i) => data.ElementAt(i.x * length.y + i.y);
+    public int2 GetLength() => length;
+}
+
+public class CollectionChart2DData<T> : CollectionChart2DManagedData<T>, IChart2DData<T> where T : unmanaged {
+    public CollectionChart2DData(T[] data, int2 length) : base(data, length) { }
+    
+    public unsafe void GetValues(int2 start, int2 count, int downsample, T* dest) {
+        for (int x = 0; x < count.x; x++) {
+            int xSrcInd = (start.x + (x << downsample)) * count.y;
+            
+            for (int y = 0; y < count.y; y++) {
+                int ySrc = start.y + (y << downsample);
+                
+                int indexSrc = xSrcInd + ySrc;
+                *dest++ = data.ElementAt(indexSrc);
+            }
+        }
+    }
+}
+
+public class FuncChart2DManagedData<T> : IChart2DManagedData<T> {
+    public readonly Func<int2, T> sample;
+    public readonly int2 length;
+
+    public FuncChart2DManagedData(Func<int2, T> sample, int2 length) {
+        this.sample = sample;
+        this.length = length;
+    }
+
+    public void GetValues(int2 start, int2 count, int downsample, T[] dest) {
+        for (int x = 0; x < count.x; x++) {
+            int xDestInd = x * count.y;
+            int xSrc= start.x + (x << downsample);
+            
+            for (int y = 0; y < count.y; y++) {
+                int ySrc = start.y + (y << downsample);
+                
+                int indexDest = xDestInd + y;
+                dest[indexDest] = sample(new(xSrc, ySrc));
+            }
+        }
+    }
+
+    public T GetValue(int2 i) => sample(i);
+    public int2 GetLength() => length;
+}
+
+public class FuncChart2DData<T> : FuncChart2DManagedData<T>, IChart2DData<T> where T : unmanaged {
+    public FuncChart2DData(Func<int2, T> sample, int2 length) : base(sample, length) { }
+
+    public unsafe void GetValues(int2 start, int2 count, int downsample, T* dest) {
+        for (int x = 0; x < count.x; x++) {
+            int xSrc = start.x + (x << downsample);
+            
+            for (int y = 0; y < count.y; y++) {
+                int ySrc = start.y + (y << downsample);
+                *dest++ = sample(new(xSrc, ySrc));
+            }
+        }
+    }
+}
+
+
+public class ConstChart2DManagedData<T> : IChart2DManagedData<T> {
+    public T value;
+    public int2 length;
+
+    public ConstChart2DManagedData(T value, int2 length) {
+        this.value = value;
+        this.length = length;
+    }
+    
+    public ConstChart2DManagedData(T value) {
+        this.value = value;
+        length = int2.one;
+    }
+
+    public void GetValues(int2 start, int2 count, int downsample, T[] dest) {
+        for (int i = 0; i < count.x * count.y; i++) dest[i] = value;
+    }
+    public T GetValue(int2 i) => value;
+    public int2 GetLength() => length;
+}
+
+public class ConstChart2DData<T> : ConstChart2DManagedData<T>, IChart2DData<T> where T : unmanaged {
+    public ConstChart2DData(T value, int2 length) : base(value, length) { }
+    public ConstChart2DData(T value) : base(value) { }
+
+    public unsafe void GetValues(int2 start, int2 count, int downsample, T* dest) {
+        for (int i = 0; i < count.x * count.y; i++) dest[i] = value;
+    }
+}

SomeChartsUi/src/data/IChartData.cs

@@ -1,4 +1,5 @@
 using MathStuff;
+using MathStuff.vectors;
 using SomeChartsUi.themes.colors;
 
 namespace SomeChartsUi.data;
@@ -110,6 +111,12 @@ public static class ChartDataExtensions {
 		v.GetValues(start, count, downsample, arr);
 		return arr;
 	}
+	
+	public static T[] GetValues<T>(this IChart2DManagedData<T> v, int2 start, int2 count, int downsample) {
+		T[] arr = new T[count.x * count.y];
+		v.GetValues(start, count, downsample, arr);
+		return arr;
+	}
 
 	/// <summary>get values using stride</summary>
 	/// <param name="v">data source</param>