public Bitmap ProcessImage(Bitmap inImage)
{
ComputeImage2D oclInImage = null;
ComputeImage2D oclOutImage = null;
BitmapData inImageData = inImage.LockBits(new Rectangle(0, 0, inImage.Width, inImage.Height),
ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
Bitmap outImage = new Bitmap(inImage.Width, inImage.Height, PixelFormat.Format32bppArgb);
BitmapData outImageData = outImage.LockBits(new Rectangle(0, 0, outImage.Width, outImage.Height),
ImageLockMode.WriteOnly, PixelFormat.Format32bppArgb);
try
{
oclInImage = new ComputeImage2D(oclContext, ComputeMemoryFlags.ReadOnly |
ComputeMemoryFlags.CopyHostPointer, new ComputeImageFormat(ComputeImageChannelOrder.Bgra,
ComputeImageChannelType.UNormInt8), inImage.Width, inImage.Height, 0, inImageData.Scan0);
oclOutImage = new ComputeImage2D(oclContext, ComputeMemoryFlags.WriteOnly |
ComputeMemoryFlags.CopyHostPointer, new ComputeImageFormat(ComputeImageChannelOrder.Bgra,
ComputeImageChannelType.UNormInt8), outImage.Width, outImage.Height, 0, outImageData.Scan0);
oclKernel.SetMemoryArgument(0, oclInImage);
oclKernel.SetMemoryArgument(1, oclOutImage);
oclCommandQueue.Execute(oclKernel, new long[] { 0, 0 }, new long[] { oclInImage.Width,
oclInImage.Height }, null, null);
oclCommandQueue.Finish();
oclCommandQueue.ReadFromImage(oclOutImage, outImageData.Scan0, true, null);
}
catch (Exception)
{
throw;
}
finally
{
inImage.UnlockBits(inImageData);
outImage.UnlockBits(outImageData);
if (oclInImage != null)
{
oclInImage.Dispose();
oclInImage = null;
}
if (oclOutImage != null)
{
oclOutImage.Dispose();
oclOutImage = null;
}
}
return(outImage);
}
public static void Run(TextWriter log, ComputeContext context)
{
StartTest(log, "Image test");
try
{
log.Write("Creating command queue... ");
ComputeCommandQueue commands = new ComputeCommandQueue(context, context.Devices[0], ComputeCommandQueueFlags.None);
log.WriteLine("done.");
int width = 16;
int height = 16;
log.Write("Creating first bitmap and drawing shapes... ");
Bitmap firstBitmap = new Bitmap(width, height, PixelFormat.Format32bppArgb);
Graphics graphics = Graphics.FromImage(firstBitmap);
graphics.FillEllipse(Brushes.Red, 0, 0, width / 2, height / 2);
graphics.FillRectangle(Brushes.Green, width / 2 + 1, 0, width / 2, height / 2);
graphics.FillRectangle(Brushes.Blue, width / 2 + 1, height / 2 + 1, width / 2, height / 2);
log.WriteLine("done.");
log.Write("Creating OpenCL image object from first bitmap... ");
ComputeImage2D clImage = new ComputeImage2D(context, ComputeMemoryFlags.ReadWrite | ComputeMemoryFlags.CopyHostPointer, firstBitmap);
log.WriteLine("done.");
log.Write("Creating second bitmap... ");
Bitmap secondBitmap = new Bitmap(width, height, PixelFormat.Format32bppArgb);
BitmapData bmpData = secondBitmap.LockBits(new Rectangle(0, 0, width, height), ImageLockMode.ReadWrite, secondBitmap.PixelFormat);
log.WriteLine("done.");
log.Write("Reading from OpenCL image object... ");
commands.ReadFromImage(clImage, bmpData.Scan0, true, null);
log.WriteLine("done.");
secondBitmap.UnlockBits(bmpData);
log.Write("Comparing bitmaps... ");
for (int i = 0; i < width; i++)
for (int j = 0; j < height; j++)
if (firstBitmap.GetPixel(i, j) != secondBitmap.GetPixel(i, j))
throw new Exception("Image data mismatch!");
log.WriteLine("passed.");
}
catch (Exception e)
{
log.WriteLine(e.ToString());
}
EndTest(log, "Image test");
}
public static void CLApply2DLUT(ComputeContext context)
{
ComputeImageFormat format = new ComputeImageFormat(ComputeImageChannelOrder.Bgra, ComputeImageChannelType.UnsignedInt8);
var startTime = LLTools.TimestampMS();
#region Visible / Temporary Source
BitmapData bitmapData = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height), ImageLockMode.ReadOnly, bmp.PixelFormat);
ComputeImage2D source0 = new ComputeImage2D(context, ComputeMemoryFlags.ReadWrite | ComputeMemoryFlags.CopyHostPointer, format, bmp.Width, bmp.Height, bitmapData.Stride, bitmapData.Scan0);
bmp.UnlockBits(bitmapData);
#endregion
#region Infrared Source
bitmapData = irBmp.LockBits(new Rectangle(0, 0, irBmp.Width, irBmp.Height), ImageLockMode.ReadOnly, irBmp.PixelFormat);
ComputeImage2D source1 = new ComputeImage2D(context, ComputeMemoryFlags.ReadOnly | ComputeMemoryFlags.CopyHostPointer, format, irBmp.Width, irBmp.Height, bitmapData.Stride, bitmapData.Scan0);
irBmp.UnlockBits(bitmapData);
#endregion
#region Output
ComputeImage2D output = new ComputeImage2D(context, ComputeMemoryFlags.ReadWrite | ComputeMemoryFlags.AllocateHostPointer, format, bmp.Width, bmp.Height, 0, IntPtr.Zero);
#endregion
#region Variable Initialization
ComputeEventList eventList = new ComputeEventList();
ComputeCommandQueue commands = new ComputeCommandQueue(context, context.Devices[0], ComputeCommandQueueFlags.None);
#region Apply Curve
applyCurveKernel.SetMemoryArgument(0, source0);
applyCurveKernel.SetMemoryArgument(1, output);
applyCurveKernel.SetMemoryArgument(2, curveLutBuffer);
#endregion
#region Apply LUT 2D
apply2DLUTKernel.SetMemoryArgument(0, source1);
apply2DLUTKernel.SetMemoryArgument(1, output);
apply2DLUTKernel.SetMemoryArgument(2, source0);
apply2DLUTKernel.SetMemoryArgument(3, lut2DBuffer);
#endregion
#region Reprojection
var latRangeBuff = new ComputeBuffer <float>(context, ComputeMemoryFlags.ReadOnly | ComputeMemoryFlags.CopyHostPointer, latRange);
var lonRangeBuff = new ComputeBuffer <float>(context, ComputeMemoryFlags.ReadOnly | ComputeMemoryFlags.CopyHostPointer, lonRange);
var coverageBuff = new ComputeBuffer <float>(context, ComputeMemoryFlags.ReadOnly | ComputeMemoryFlags.CopyHostPointer, coverage);
var trimBuff = new ComputeBuffer <float>(context, ComputeMemoryFlags.ReadOnly | ComputeMemoryFlags.CopyHostPointer, trim);
var sizeBuff = new ComputeBuffer <uint>(context, ComputeMemoryFlags.ReadOnly | ComputeMemoryFlags.CopyHostPointer, size);
reprojectKernel.SetMemoryArgument(0, source0);
reprojectKernel.SetMemoryArgument(1, output);
reprojectKernel.SetValueArgument(2, satelliteLongitude);
reprojectKernel.SetValueArgument(3, coff);
reprojectKernel.SetValueArgument(4, cfac);
reprojectKernel.SetValueArgument(5, loff);
reprojectKernel.SetValueArgument(6, lfac);
reprojectKernel.SetValueArgument(7, (uint)(fixAspect ? 1 : 0));
reprojectKernel.SetValueArgument(8, aspectRatio);
reprojectKernel.SetMemoryArgument(9, latRangeBuff);
reprojectKernel.SetMemoryArgument(10, lonRangeBuff);
reprojectKernel.SetMemoryArgument(11, coverageBuff);
reprojectKernel.SetMemoryArgument(12, trimBuff);
reprojectKernel.SetMemoryArgument(13, sizeBuff);
#endregion
#endregion
#region Run Pipeline
UIConsole.Log("Executing curve kernel");
commands.Execute(applyCurveKernel, null, new long[] { bmp.Width, bmp.Height }, null, eventList);
UIConsole.Log("Executing LUT2D kernel");
commands.Execute(apply2DLUTKernel, null, new long[] { bmp.Width, bmp.Height }, null, eventList);
UIConsole.Log("Executing kernel");
commands.Execute(reprojectKernel, null, new long[] { bmp.Width, bmp.Height }, null, eventList);
#endregion
#region Dump Bitmap
UIConsole.Log("Dumping bitmap");
Bitmap obmp = new Bitmap(bmp.Width, bmp.Height, bmp.PixelFormat);
BitmapData bmpData = obmp.LockBits(new Rectangle(0, 0, obmp.Width, obmp.Height), ImageLockMode.ReadWrite, obmp.PixelFormat);
commands.ReadFromImage(output, bmpData.Scan0, true, null);
obmp.UnlockBits(bmpData);
var delta = LLTools.TimestampMS() - startTime;
UIConsole.Log($"Took {delta} ms to Apply Curve -> Apply Lut2D (FalseColor) -> Reproject");
UIConsole.Log("Saving bitmap");
obmp.Save("teste.png");
UIConsole.Log("Done");
bmp.Save("original.png");
#endregion
}
