public void CopyTo(int horizontalFactor, int verticalFactor)
{
Block8x8F block = CreateRandomFloatBlock(0, 100);
var start = new Point(50, 50);
using (Buffer2D <float> buffer = Configuration.Default.MemoryAllocator.Allocate2D <float>(100, 100, AllocationOptions.Clean))
{
Buffer2DRegion <float> region = buffer.GetRegion(start.X, start.Y, 8 * horizontalFactor, 8 * verticalFactor);
block.ScaledCopyTo(region, horizontalFactor, verticalFactor);
for (int y = 0; y < 8 * verticalFactor; y++)
{
for (int x = 0; x < 8 * horizontalFactor; x++)
{
int yy = y / verticalFactor;
int xx = x / horizontalFactor;
float expected = block[xx, yy];
float actual = region[x, y];
Assert.Equal(expected, actual);
}
}
VerifyAllZeroOutsideSubArea(buffer, start.X, start.Y, horizontalFactor, verticalFactor);
}
}
public void GetReferenceToOrigin(int bufferCapacity)
{
this.memoryAllocator.BufferCapacityInBytes = sizeof(int) * bufferCapacity;
using Buffer2D <int> buffer = this.CreateTestBuffer(20, 30);
Buffer2DRegion <int> area0 = buffer.GetRegion(6, 8, 10, 10);
ref int r = ref area0.GetReferenceToOrigin();
public void Indexer(int bufferCapacity, int rx, int ry, int x, int y)
{
this.memoryAllocator.BufferCapacityInBytes = sizeof(int) * bufferCapacity;
using Buffer2D <int> buffer = this.CreateTestBuffer(20, 30);
var r = new Rectangle(rx, ry, 5, 6);
Buffer2DRegion <int> region = buffer.GetRegion(r);
int value = region[x, y];
int expected = ((ry + y) * 100) + rx + x;
Assert.Equal(expected, value);
}
public void GetSubArea()
{
using Buffer2D <int> buffer = this.CreateTestBuffer(20, 30);
Buffer2DRegion <int> area0 = buffer.GetRegion(6, 8, 10, 10);
Buffer2DRegion <int> area1 = area0.GetSubRegion(4, 4, 5, 5);
var expectedRect = new Rectangle(10, 12, 5, 5);
Assert.Equal(buffer, area1.Buffer);
Assert.Equal(expectedRect, area1.Rectangle);
int value00 = (12 * 100) + 10;
Assert.Equal(value00, area1[0, 0]);
}
public void Copy1x1Scale()
{
Block8x8F block = CreateRandomFloatBlock(0, 100);
using (Buffer2D <float> buffer = Configuration.Default.MemoryAllocator.Allocate2D <float>(20, 20, AllocationOptions.Clean))
{
Buffer2DRegion <float> region = buffer.GetRegion(5, 10, 8, 8);
block.Copy1x1Scale(ref region.GetReferenceToOrigin(), region.Stride);
Assert.Equal(block[0, 0], buffer[5, 10]);
Assert.Equal(block[1, 0], buffer[6, 10]);
Assert.Equal(block[0, 1], buffer[5, 11]);
Assert.Equal(block[0, 7], buffer[5, 17]);
Assert.Equal(block[63], buffer[12, 17]);
VerifyAllZeroOutsideSubArea(buffer, 5, 10);
}
}
public void GetRowSpan(int bufferCapacity, int rx, int ry, int y, int w, int h)
{
this.memoryAllocator.BufferCapacityInBytes = sizeof(int) * bufferCapacity;
using Buffer2D <int> buffer = this.CreateTestBuffer(20, 30);
var r = new Rectangle(rx, ry, w, h);
Buffer2DRegion <int> region = buffer.GetRegion(r);
Span <int> span = region.GetRowSpan(y);
Assert.Equal(w, span.Length);
for (int i = 0; i < w; i++)
{
int expected = ((ry + y) * 100) + rx + i;
int value = span[i];
Assert.Equal(expected, value);
}
}