/// <summary>
/// Clears the given bitmap with the given color
/// </summary>
/// <param name="bitmap">The bitmap to clear</param>
/// <param name="color">The color to clear the bitmap with</param>
public static void ClearBitmap(Bitmap bitmap, int color)
{
using (var fb = bitmap.FastLock())
{
fb.Clear(color);
}
}
/// <summary>
/// Copies a region of the source bitmap to a target bitmap
/// </summary>
/// <param name="source">The source image to copy</param>
/// <param name="target">The target image to be altered</param>
/// <param name="srcRect">The region on the source bitmap that will be copied over</param>
/// <param name="destRect">The region on the target bitmap that will be changed</param>
/// <exception cref="ArgumentException">The provided source and target bitmaps are the same bitmap</exception>
public static void CopyRegion(Bitmap source, Bitmap target, Rectangle srcRect, Rectangle destRect)
{
var srcBitmapRect = new Rectangle(0, 0, source.Width, source.Height);
var destBitmapRect = new Rectangle(0, 0, target.Width, target.Height);
// If the copy operation results in an entire copy, use CopyPixels instead
if (srcBitmapRect == srcRect && destBitmapRect == destRect && srcBitmapRect == destBitmapRect)
{
CopyPixels(source, target);
return;
}
using (var fastTarget = target.FastLock())
{
fastTarget.CopyRegion(source, srcRect, destRect);
}
}
/// <summary>
/// Performs a copy operation of the pixels from the Source bitmap to the Target bitmap.
/// If the dimensions or pixel depths of both images don't match, the copy is not performed
/// </summary>
/// <param name="source">The bitmap to copy the pixels from</param>
/// <param name="target">The bitmap to copy the pixels to</param>
/// <returns>Whether the copy proceedure was successful</returns>
/// <exception cref="ArgumentException">The provided source and target bitmaps are the same</exception>
public static bool CopyPixels(Bitmap source, Bitmap target)
{
if (source == target)
{
throw new ArgumentException(@"Copying pixels across the same bitmap is not supported", nameof(source));
}
if (source.Width != target.Width || source.Height != target.Height || source.PixelFormat != target.PixelFormat)
{
return(false);
}
using (FastBitmap fastSource = source.FastLock(),
fastTarget = target.FastLock())
{
memcpy(fastTarget.Scan0, fastSource.Scan0, (ulong)(fastSource.Height * fastSource.Stride * BytesPerPixel));
}
return(true);
}
private void captureTarget()
{
int runX = x;
int runY = y;
Size runSize = new Size(width, height);
while (this.running) {
try {
using (Bitmap screen = new Bitmap(runSize.Width, runSize.Height, PixelFormat.Format32bppArgb)) {
using (Graphics grphx = Graphics.FromImage(screen)) {
try {
grphx.CopyFromScreen(runX, runY, 0, 0, runSize, CopyPixelOperation.SourceCopy);
grphx.Save();
if (null != screen && NewScreenAvailEvent != null) {
NewScreenAvailEvent(screen.FastLock().DataArray, EventArgs.Empty);
}
}
catch (Exception e) {
Log(e.Message + '\t' + e.StackTrace);
}
Thread.Sleep(captureThrottle);
}
}
}
catch (Exception ex) {
Log(ex.Message + '\t' + ex.StackTrace);
}
}
}
/// <summary>
/// Copies a region of the source bitmap into this fast bitmap
/// </summary>
/// <param name="source">The source image to copy</param>
/// <param name="srcRect">The region on the source bitmap that will be copied over</param>
/// <param name="destRect">The region on this fast bitmap that will be changed</param>
/// <exception cref="ArgumentException">The provided source bitmap is the same bitmap locked in this FastBitmap</exception>
public void CopyRegion(Bitmap source, Rectangle srcRect, Rectangle destRect)
{
// Throw exception when trying to copy same bitmap over
if (source == _bitmap)
{
throw new ArgumentException(@"Copying regions across the same bitmap is not supported", nameof(source));
}
var srcBitmapRect = new Rectangle(0, 0, source.Width, source.Height);
var destBitmapRect = new Rectangle(0, 0, Width, Height);
// Check if the rectangle configuration doesn't generate invalid states or does not affect the target image
if (srcRect.Width <= 0 || srcRect.Height <= 0 || destRect.Width <= 0 || destRect.Height <= 0 ||
!srcBitmapRect.IntersectsWith(srcRect) || !destRect.IntersectsWith(destBitmapRect))
{
return;
}
// Find the areas of the first and second bitmaps that are going to be affected
srcBitmapRect = Rectangle.Intersect(srcRect, srcBitmapRect);
// Clip the source rectangle on top of the destination rectangle in a way that clips out the regions of the original bitmap
// that will not be drawn on the destination bitmap for being out of bounds
srcBitmapRect = Rectangle.Intersect(srcBitmapRect, new Rectangle(srcRect.X, srcRect.Y, destRect.Width, destRect.Height));
destBitmapRect = Rectangle.Intersect(destRect, destBitmapRect);
// Clip the source bitmap region yet again here
srcBitmapRect = Rectangle.Intersect(srcBitmapRect, new Rectangle(-destRect.X + srcRect.X, -destRect.Y + srcRect.Y, Width, Height));
// Calculate the rectangle containing the maximum possible area that is supposed to be affected by the copy region operation
int copyWidth = Math.Min(srcBitmapRect.Width, destBitmapRect.Width);
int copyHeight = Math.Min(srcBitmapRect.Height, destBitmapRect.Height);
if (copyWidth == 0 || copyHeight == 0)
{
return;
}
int srcStartX = srcBitmapRect.Left;
int srcStartY = srcBitmapRect.Top;
int destStartX = destBitmapRect.Left;
int destStartY = destBitmapRect.Top;
using (var fastSource = source.FastLock())
{
ulong strideWidth = (ulong)copyWidth * BytesPerPixel;
// Perform copies of whole pixel rows
for (int y = 0; y < copyHeight; y++)
{
int destX = destStartX;
int destY = destStartY + y;
int srcX = srcStartX;
int srcY = srcStartY + y;
long offsetSrc = (srcX + srcY * fastSource.Stride);
long offsetDest = (destX + destY * Stride);
memcpy(_scan0 + offsetDest, fastSource._scan0 + offsetSrc, strideWidth);
}
}
}
/// <summary>
/// Performs a copy operation of the pixels from the Source bitmap to the Target bitmap.
/// If the dimensions or pixel depths of both images don't match, the copy is not performed
/// </summary>
/// <param name="source">The bitmap to copy the pixels from</param>
/// <param name="target">The bitmap to copy the pixels to</param>
/// <returns>Whether the copy proceedure was successful</returns>
public static bool CopyPixels(Bitmap source, Bitmap target)
{
if (source.Width != target.Width || source.Height != target.Height || source.PixelFormat != target.PixelFormat)
return false;
using (FastBitmap fastSource = source.FastLock(),
fastTarget = target.FastLock())
{
memcpy(fastTarget.Scan0, fastSource.Scan0, (ulong)(fastSource.Height * fastSource._strideWidth * BytesPerPixel));
}
return true;
}
/// <summary>
/// Clears the given bitmap with the given color
/// </summary>
/// <param name="bitmap">The bitmap to clear</param>
/// <param name="color">The color to clear the bitmap with</param>
public static void ClearBitmap(Bitmap bitmap, int color)
{
using (var fb = bitmap.FastLock())
{
fb.Clear(color);
}
}
/// <summary>
/// Copies a region of the source bitmap into this fast bitmap
/// </summary>
/// <param name="source">The source image to copy</param>
/// <param name="srcRect">The region on the source bitmap that will be copied over</param>
/// <param name="destRect">The region on this fast bitmap that will be changed</param>
/// <exception cref="ArgumentException">The provided source bitmap is the same bitmap locked in this FastBitmap</exception>
public void CopyRegion(Bitmap source, Rectangle srcRect, Rectangle destRect)
{
// Throw exception when trying to copy same bitmap over
if (source == _bitmap)
{
throw new ArgumentException("Copying regions across the same bitmap is not supported", "source");
}
Rectangle srcBitmapRect = new Rectangle(0, 0, source.Width, source.Height);
Rectangle destBitmapRect = new Rectangle(0, 0, _width, _height);
// Check if the rectangle configuration doesn't generate invalid states or does not affect the target image
if (srcRect.Width <= 0 || srcRect.Height <= 0 || destRect.Width <= 0 || destRect.Height <= 0 ||
!srcBitmapRect.IntersectsWith(srcRect) || !destRect.IntersectsWith(destBitmapRect))
return;
// Find the areas of the first and second bitmaps that are going to be affected
srcBitmapRect = Rectangle.Intersect(srcRect, srcBitmapRect);
// Clip the source rectangle on top of the destination rectangle in a way that clips out the regions of the original bitmap
// that will not be drawn on the destination bitmap for being out of bounds
srcBitmapRect = Rectangle.Intersect(srcBitmapRect, new Rectangle(srcRect.X, srcRect.Y, destRect.Width, destRect.Height));
destBitmapRect = Rectangle.Intersect(destRect, destBitmapRect);
// Clipt the source bitmap region yet again here
srcBitmapRect = Rectangle.Intersect(srcBitmapRect, new Rectangle(-destRect.X + srcRect.X, -destRect.Y + srcRect.Y, _width, _height));
// Calculate the rectangle containing the maximum possible area that is supposed to be affected by the copy region operation
int copyWidth = Math.Min(srcBitmapRect.Width, destBitmapRect.Width);
int copyHeight = Math.Min(srcBitmapRect.Height, destBitmapRect.Height);
if (copyWidth == 0 || copyHeight == 0)
return;
int srcStartX = srcBitmapRect.Left;
int srcStartY = srcBitmapRect.Top;
int destStartX = destBitmapRect.Left;
int destStartY = destBitmapRect.Top;
using (FastBitmap fastSource = source.FastLock())
{
ulong strideWidth = (ulong)copyWidth * BytesPerPixel;
for (int y = 0; y < copyHeight; y++)
{
int destX = destStartX;
int destY = destStartY + y;
int srcX = srcStartX;
int srcY = srcStartY + y;
long offsetSrc = (srcX + srcY * fastSource._strideWidth);
long offsetDest = (destX + destY * _strideWidth);
memcpy(_scan0 + offsetDest, fastSource._scan0 + offsetSrc, strideWidth);
}
}
}
public void TestCopyFromArrayMismatchedLengthException()
{
Bitmap bitmap = new Bitmap(4, 4);
FillBitmapRegion(bitmap, new Rectangle(0, 0, bitmap.Width, bitmap.Height), Color.Red);
int[] colors =
{
0xFFFFFF, 0xFFFFEF, 0xABABAB, 0xABCDEF,
0x111111, 0x123456, 0x654321, 0x000000,
0x000000, 0xFFFFEF, 0x000000, 0xABCDEF,
0x000000, 0x000000, 0x654321, 0x000000,
0x000000, 0x000000, 0x654321, 0x000000
};
using (var fastBitmap = bitmap.FastLock())
{
fastBitmap.CopyFromArray(colors, true);
}
}
public void TestCopyFromArrayIgnoreZeroes()
{
Bitmap bitmap = new Bitmap(4, 4);
FillBitmapRegion(bitmap, new Rectangle(0, 0, bitmap.Width, bitmap.Height), Color.Red);
int[] colors =
{
0xFFFFFF, 0xFFFFEF, 0xABABAB, 0xABCDEF,
0x111111, 0x123456, 0x654321, 0x000000,
0x000000, 0xFFFFEF, 0x000000, 0xABCDEF,
0x000000, 0x000000, 0x654321, 0x000000
};
using (var fastBitmap = bitmap.FastLock())
{
fastBitmap.CopyFromArray(colors, true);
}
// Test now the resulting bitmap
for (int y = 0; y < bitmap.Height; y++)
{
for (int x = 0; x < bitmap.Width; x++)
{
int index = y * bitmap.Width + x;
int arrayColor = colors[index];
int bitmapColor = bitmap.GetPixel(x, y).ToArgb();
if(arrayColor != 0)
{
Assert.AreEqual(arrayColor, bitmapColor,
"After a call to CopyFromArray(_, true), the non-zeroes values provided on the on the array must match the values in the bitmap pixels");
}
else
{
Assert.AreEqual(Color.Red.ToArgb(), bitmapColor,
"After a call to CopyFromArray(_, true), the 0 values on the original array must not be copied over");
}
}
}
}
public void TestCopyFromArray()
{
Bitmap bitmap = new Bitmap(4, 4);
int[] colors =
{
0xFFFFFF, 0xFFFFEF, 0xABABAB, 0xABCDEF,
0x111111, 0x123456, 0x654321, 0x000000,
0xFFFFFF, 0xFFFFEF, 0xABABAB, 0xABCDEF,
0x111111, 0x123456, 0x654321, 0x000000
};
using (var fastBitmap = bitmap.FastLock())
{
fastBitmap.CopyFromArray(colors);
}
// Test now the resulting bitmap
for (int y = 0; y < bitmap.Height; y++)
{
for (int x = 0; x < bitmap.Width; x++)
{
int index = y * bitmap.Width + x;
Assert.AreEqual(colors[index], bitmap.GetPixel(x, y).ToArgb(),
"After a call to CopyFromArray, the values provided on the on the array must match the values in the bitmap pixels");
}
}
}
public void TestLockExtensionMethod()
{
Bitmap bitmap = new Bitmap(64, 64);
using (FastBitmap fast = bitmap.FastLock())
{
fast.SetPixel(0, 0, Color.Red);
}
// Test unlocking by trying to modify the bitmap
bitmap.SetPixel(0, 0, Color.Blue);
}
