コード例 #1
0
        public static Bitmap ConvertImageToBitmap(ImageBuffer sourceImage)
        {
            var bitmap = new Bitmap(sourceImage.Width, sourceImage.Height, PixelFormat.Format32bppArgb);

            BitmapData bitmapData = bitmap.LockBits(new Rectangle(0, 0, bitmap.Width, bitmap.Height), ImageLockMode.ReadWrite, bitmap.PixelFormat);

            int destIndex = 0;

            unsafe
            {
                byte[] sourceBuffer    = sourceImage.GetBuffer();
                byte * pDestBuffer     = (byte *)bitmapData.Scan0;
                int    scanlinePadding = bitmapData.Stride - bitmapData.Width * 4;
                for (int y = 0; y < sourceImage.Height; y++)
                {
                    int sourceIndex = sourceImage.GetBufferOffsetXY(0, sourceImage.Height - 1 - y);
                    for (int x = 0; x < sourceImage.Width; x++)
                    {
                        pDestBuffer[destIndex++] = sourceBuffer[sourceIndex++];
                        pDestBuffer[destIndex++] = sourceBuffer[sourceIndex++];
                        pDestBuffer[destIndex++] = sourceBuffer[sourceIndex++];
                        pDestBuffer[destIndex++] = sourceBuffer[sourceIndex++];
                    }

                    destIndex += scanlinePadding;
                }
            }

            bitmap.UnlockBits(bitmapData);

            return(bitmap);
        }
コード例 #2
0
ファイル: ImageIO.cs プロジェクト: larsbrubaker/agg-sharp
        public static bool ConvertImageToImageBuffer(ImageBuffer destImage, int width, int height, Rgba32[] pixelArray)
        {
            if (pixelArray != null)
            {
                destImage.Allocate(width, height, width * 4, 32);
                if (destImage.GetRecieveBlender() == null)
                {
                    destImage.SetRecieveBlender(new BlenderBGRA());
                }

                int    sourceIndex = 0;
                byte[] destBuffer  = destImage.GetBuffer(out _);
                for (int y = 0; y < destImage.Height; y++)
                {
                    int destIndex = destImage.GetBufferOffsetXY(0, destImage.Height - 1 - y);
                    for (int x = 0; x < destImage.Width; x++)
                    {
                        destBuffer[destIndex++] = pixelArray[sourceIndex].B;
                        destBuffer[destIndex++] = pixelArray[sourceIndex].G;
                        destBuffer[destIndex++] = pixelArray[sourceIndex].R;
                        destBuffer[destIndex++] = pixelArray[sourceIndex].A;
                        sourceIndex++;
                    }
                }

                return(true);
            }

            return(false);
        }
コード例 #3
0
ファイル: Dilate.cs プロジェクト: CNCBrasil/agg-sharp
		public static void DoDilate3x3MaxValue(ImageBuffer source, ImageBuffer dest)
		{
			if (source.BitDepth != 32 || dest.BitDepth != 32)
			{
				throw new NotImplementedException("We only work with 32 bit at the moment.");
			}

			if (source.Width != dest.Width || source.Height != dest.Height)
			{
				throw new NotImplementedException("Source and Dest have to be the same size");
			}

			int height = source.Height;
			int width = source.Width;
			int sourceStrideInBytes = source.StrideInBytes();
			int destStrideInBytes = dest.StrideInBytes();
			byte[] sourceBuffer = source.GetBuffer();
			byte[] destBuffer = dest.GetBuffer();

			for (int testY = 1; testY < height - 1; testY++)
			{
				for (int testX = 1; testX < width - 1; testX++)
				{
					RGBA_Bytes maxColor = RGBA_Bytes.Black;
					int sourceOffset = source.GetBufferOffsetXY(testX, testY - 1);

					// x-1, y-1
					//maxColor = MaxColor(sourceBuffer, maxColor, sourceOffset - 4);
					// x0, y-1
					maxColor = MaxColor(sourceBuffer, maxColor, sourceOffset + 0);
					// x1, y-1
					//maxColor = MaxColor(sourceBuffer, maxColor, sourceOffset + 4);

					// x-1, y0
					maxColor = MaxColor(sourceBuffer, maxColor, sourceOffset + sourceStrideInBytes - 4);
					// x0, y0
					maxColor = MaxColor(sourceBuffer, maxColor, sourceOffset + sourceStrideInBytes + 0);
					// x+1, y0
					maxColor = MaxColor(sourceBuffer, maxColor, sourceOffset + sourceStrideInBytes + 4);

					// x-1, y+1
					//maxColor = MaxColor(sourceBuffer, maxColor, sourceOffset + sourceStrideInBytes * 2 - 4);
					// x0, y+1
					maxColor = MaxColor(sourceBuffer, maxColor, sourceOffset + sourceStrideInBytes * 2 + 0);
					// x+1, y+1
					//maxColor = MaxColor(sourceBuffer, maxColor, sourceOffset + sourceStrideInBytes * 2 + 4);

					int destOffset = dest.GetBufferOffsetXY(testX, testY);
					destBuffer[destOffset + 2] = maxColor.red;
					destBuffer[destOffset + 1] = maxColor.green;
					destBuffer[destOffset + 0] = maxColor.blue;
					destBuffer[destOffset + 3] = 255;
				}
			}
		}
コード例 #4
0
        public ImageBuffer(ImageBuffer sourceImage)
        {
            SetDimmensionAndFormat(sourceImage.Width, sourceImage.Height, sourceImage.StrideInBytes(), sourceImage.BitDepth, sourceImage.GetBytesBetweenPixelsInclusive(), true);
            int offset = sourceImage.GetBufferOffsetXY(0, 0);

            byte[] buffer    = sourceImage.GetBuffer();
            byte[] newBuffer = new byte[buffer.Length];
            agg_basics.memcpy(newBuffer, offset, buffer, offset, buffer.Length - offset);
            SetBuffer(newBuffer, offset);
            SetRecieveBlender(sourceImage.GetRecieveBlender());
        }
コード例 #5
0
ファイル: Dilate.cs プロジェクト: jeske/agg-sharp
        public static void DoDilate3x3Binary(ImageBuffer source, ImageBuffer dest, int threshold)
        {
            if (source.BitDepth != 32 || dest.BitDepth != 32)
            {
                throw new NotImplementedException("We only work with 32 bit at the moment.");
            }

            if (source.Width != dest.Width || source.Height != dest.Height)
            {
                throw new NotImplementedException("Source and Dest have to be the same size");
            }

            int height = source.Height;
            int width = source.Width;
            int sourceStrideInBytes = source.StrideInBytes();
            int destStrideInBytes = dest.StrideInBytes();
            byte[] sourceBuffer = source.GetBuffer();
            byte[] destBuffer = dest.GetBuffer();

            for (int testY = 1; testY < height-1; testY++)
            {
                for (int testX = 1; testX < width - 1; testX++)
                {
                    for (int sourceY = -1; sourceY <= 1; sourceY++)
                    {
                        for (int sourceX = -1; sourceX <= 1; sourceX++)
                        {
                            int sourceOffset = source.GetBufferOffsetXY(testX + sourceX, testY + sourceY);
                            if (sourceBuffer[sourceOffset] > threshold)
                            {
                                int destOffset = dest.GetBufferOffsetXY(testX, testY);
                                destBuffer[destOffset++] = 255;
                                destBuffer[destOffset++] = 255;
                                destBuffer[destOffset++] = 255;
                                destBuffer[destOffset++] = 255;
                            }
                        }
                    }
                }
            }
        }
コード例 #6
0
        private static bool ConvertBitmapToImage(ImageBuffer destImage, Bitmap m_WidowsBitmap)
        {
            if (m_WidowsBitmap != null)
            {
                switch (m_WidowsBitmap.PixelFormat)
                {
                    case System.Drawing.Imaging.PixelFormat.Format32bppArgb:
                        {
                            destImage.Allocate(m_WidowsBitmap.Width, m_WidowsBitmap.Height, m_WidowsBitmap.Width * 4, 32);
                            if (destImage.GetRecieveBlender() == null)
                            {
                                destImage.SetRecieveBlender(new BlenderBGRA());
                            }

                            BitmapData bitmapData = m_WidowsBitmap.LockBits(new Rectangle(0, 0, m_WidowsBitmap.Width, m_WidowsBitmap.Height), System.Drawing.Imaging.ImageLockMode.ReadWrite, m_WidowsBitmap.PixelFormat);
                            int sourceIndex = 0;
                            int destIndex = 0;
                            unsafe
                            {
                                int offset;
                                byte[] destBuffer = destImage.GetBuffer(out offset);
                                byte* pSourceBuffer = (byte*)bitmapData.Scan0;
                                for (int y = 0; y < destImage.Height; y++)
                                {
                                    destIndex = destImage.GetBufferOffsetXY(0, destImage.Height - 1 - y);
                                    for (int x = 0; x < destImage.Width; x++)
                                    {
#if true
                                        destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
                                        destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
                                        destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
                                        destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
#else
                                            RGBA_Bytes notPreMultiplied = new RGBA_Bytes(pSourceBuffer[sourceIndex + 0], pSourceBuffer[sourceIndex + 1], pSourceBuffer[sourceIndex + 2], pSourceBuffer[sourceIndex + 3]);
                                            sourceIndex += 4;
                                            RGBA_Bytes preMultiplied = notPreMultiplied.GetAsRGBA_Floats().premultiply().GetAsRGBA_Bytes();
                                            destBuffer[destIndex++] = preMultiplied.blue;
                                            destBuffer[destIndex++] = preMultiplied.green;
                                            destBuffer[destIndex++] = preMultiplied.red;
                                            destBuffer[destIndex++] = preMultiplied.alpha;
#endif
                                    }
                                }
                            }

                            m_WidowsBitmap.UnlockBits(bitmapData);

                            return true;
                        }

                    case System.Drawing.Imaging.PixelFormat.Format24bppRgb:
                        {
                            destImage.Allocate(m_WidowsBitmap.Width, m_WidowsBitmap.Height, m_WidowsBitmap.Width * 4, 32);

                            BitmapData bitmapData = m_WidowsBitmap.LockBits(new Rectangle(0, 0, m_WidowsBitmap.Width, m_WidowsBitmap.Height), System.Drawing.Imaging.ImageLockMode.ReadWrite, m_WidowsBitmap.PixelFormat);
                            int sourceIndex = 0;
                            int destIndex = 0;
                            unsafe
                            {
                                int offset;
                                byte[] destBuffer = destImage.GetBuffer(out offset);
                                byte* pSourceBuffer = (byte*)bitmapData.Scan0;
                                for (int y = 0; y < destImage.Height; y++)
                                {
                                    sourceIndex = y * bitmapData.Stride;
                                    destIndex = destImage.GetBufferOffsetXY(0, destImage.Height - 1 - y);
                                    for (int x = 0; x < destImage.Width; x++)
                                    {
                                        destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
                                        destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
                                        destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
                                        destBuffer[destIndex++] = 255;
                                    }
                                }
                            }

                            m_WidowsBitmap.UnlockBits(bitmapData);
                            return true;
                        }

                    case System.Drawing.Imaging.PixelFormat.Format8bppIndexed:
                        {
                            Copy8BitDataToImage(destImage, m_WidowsBitmap);
                            return true;
                        }

                    default:
                        throw new System.NotImplementedException();
                }

            }
            return false;
        }
コード例 #7
0
ファイル: ImageBuffer.cs プロジェクト: glocklueng/agg-sharp
		public ImageBuffer(ImageBuffer sourceImage)
		{
			SetDimmensionAndFormat(sourceImage.Width, sourceImage.Height, sourceImage.StrideInBytes(), sourceImage.BitDepth, sourceImage.GetBytesBetweenPixelsInclusive(), true);
			int offset = sourceImage.GetBufferOffsetXY(0, 0);
			byte[] buffer = sourceImage.GetBuffer();
			byte[] newBuffer = new byte[buffer.Length];
			agg_basics.memcpy(newBuffer, offset, buffer, offset, buffer.Length - offset);
			SetBuffer(newBuffer, offset);
			SetRecieveBlender(sourceImage.GetRecieveBlender());
		}
コード例 #8
0
        internal static bool ConvertBitmapToImage(ImageBuffer destImage, Bitmap bitmap)
        {
            if (bitmap != null)
            {
                switch (bitmap.PixelFormat)
                {
                case System.Drawing.Imaging.PixelFormat.Format32bppArgb:
                {
                    destImage.Allocate(bitmap.Width, bitmap.Height, bitmap.Width * 4, 32);
                    if (destImage.GetRecieveBlender() == null)
                    {
                        destImage.SetRecieveBlender(new BlenderBGRA());
                    }

                    BitmapData bitmapData  = bitmap.LockBits(new Rectangle(0, 0, bitmap.Width, bitmap.Height), System.Drawing.Imaging.ImageLockMode.ReadWrite, bitmap.PixelFormat);
                    int        sourceIndex = 0;
                    int        destIndex   = 0;
                    unsafe
                    {
                        int    offset;
                        byte[] destBuffer    = destImage.GetBuffer(out offset);
                        byte * pSourceBuffer = (byte *)bitmapData.Scan0;
                        for (int y = 0; y < destImage.Height; y++)
                        {
                            destIndex = destImage.GetBufferOffsetXY(0, destImage.Height - 1 - y);
                            for (int x = 0; x < destImage.Width; x++)
                            {
#if true
                                destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
                                destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
                                destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
                                destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
#else
                                Color notPreMultiplied = new Color(pSourceBuffer[sourceIndex + 0], pSourceBuffer[sourceIndex + 1], pSourceBuffer[sourceIndex + 2], pSourceBuffer[sourceIndex + 3]);
                                sourceIndex += 4;
                                Color preMultiplied = notPreMultiplied.ToColorF().premultiply().ToColor();
                                destBuffer[destIndex++] = preMultiplied.blue;
                                destBuffer[destIndex++] = preMultiplied.green;
                                destBuffer[destIndex++] = preMultiplied.red;
                                destBuffer[destIndex++] = preMultiplied.alpha;
#endif
                            }
                        }
                    }

                    bitmap.UnlockBits(bitmapData);

                    return(true);
                }

                case System.Drawing.Imaging.PixelFormat.Format24bppRgb:
                {
                    destImage.Allocate(bitmap.Width, bitmap.Height, bitmap.Width * 4, 32);
                    if (destImage.GetRecieveBlender() == null)
                    {
                        destImage.SetRecieveBlender(new BlenderBGRA());
                    }

                    BitmapData bitmapData  = bitmap.LockBits(new Rectangle(0, 0, bitmap.Width, bitmap.Height), System.Drawing.Imaging.ImageLockMode.ReadWrite, bitmap.PixelFormat);
                    int        sourceIndex = 0;
                    int        destIndex   = 0;
                    unsafe
                    {
                        int    offset;
                        byte[] destBuffer    = destImage.GetBuffer(out offset);
                        byte * pSourceBuffer = (byte *)bitmapData.Scan0;
                        for (int y = 0; y < destImage.Height; y++)
                        {
                            sourceIndex = y * bitmapData.Stride;
                            destIndex   = destImage.GetBufferOffsetXY(0, destImage.Height - 1 - y);
                            for (int x = 0; x < destImage.Width; x++)
                            {
                                destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
                                destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
                                destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
                                destBuffer[destIndex++] = 255;
                            }
                        }
                    }

                    bitmap.UnlockBits(bitmapData);
                    return(true);
                }

                case System.Drawing.Imaging.PixelFormat.Format8bppIndexed:
                {
                    Copy8BitDataToImage(destImage, bitmap);
                    return(true);
                }

                default:
                    // let this code fall through and return false
                    break;
                }
            }
            return(false);
        }
コード例 #9
0
        internal static bool ConvertBitmapToImage(ImageBuffer destImage, Bitmap m_WidowsBitmap)
        {
            if (m_WidowsBitmap != null)
            {
                switch (m_WidowsBitmap.PixelFormat)
                {
                case System.Drawing.Imaging.PixelFormat.Format32bppArgb:
                {
                    destImage.Allocate(m_WidowsBitmap.Width, m_WidowsBitmap.Height, m_WidowsBitmap.Width * 4, 32);
                    if (destImage.GetRecieveBlender() == null)
                    {
                        destImage.SetRecieveBlender(new BlenderBGRA());
                    }

                    BitmapData bitmapData  = m_WidowsBitmap.LockBits(new Rectangle(0, 0, m_WidowsBitmap.Width, m_WidowsBitmap.Height), System.Drawing.Imaging.ImageLockMode.ReadWrite, m_WidowsBitmap.PixelFormat);
                    int        sourceIndex = 0;
                    int        destIndex   = 0;
                    unsafe
                    {
                        int    offset;
                        byte[] destBuffer    = destImage.GetBuffer(out offset);
                        byte * pSourceBuffer = (byte *)bitmapData.Scan0;
                        for (int y = 0; y < destImage.Height; y++)
                        {
                            destIndex = destImage.GetBufferOffsetXY(0, destImage.Height - 1 - y);
                            for (int x = 0; x < destImage.Width; x++)
                            {
#if true
                                destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
                                destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
                                destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
                                destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
#else
                                RGBA_Bytes notPreMultiplied = new RGBA_Bytes(pSourceBuffer[sourceIndex + 0], pSourceBuffer[sourceIndex + 1], pSourceBuffer[sourceIndex + 2], pSourceBuffer[sourceIndex + 3]);
                                sourceIndex += 4;
                                RGBA_Bytes preMultiplied = notPreMultiplied.GetAsRGBA_Floats().premultiply().GetAsRGBA_Bytes();
                                destBuffer[destIndex++] = preMultiplied.blue;
                                destBuffer[destIndex++] = preMultiplied.green;
                                destBuffer[destIndex++] = preMultiplied.red;
                                destBuffer[destIndex++] = preMultiplied.alpha;
#endif
                            }
                        }
                    }

                    m_WidowsBitmap.UnlockBits(bitmapData);

                    return(true);
                }

                case System.Drawing.Imaging.PixelFormat.Format24bppRgb:
                {
                    destImage.Allocate(m_WidowsBitmap.Width, m_WidowsBitmap.Height, m_WidowsBitmap.Width * 4, 32);

                    BitmapData bitmapData  = m_WidowsBitmap.LockBits(new Rectangle(0, 0, m_WidowsBitmap.Width, m_WidowsBitmap.Height), System.Drawing.Imaging.ImageLockMode.ReadWrite, m_WidowsBitmap.PixelFormat);
                    int        sourceIndex = 0;
                    int        destIndex   = 0;
                    unsafe
                    {
                        int    offset;
                        byte[] destBuffer    = destImage.GetBuffer(out offset);
                        byte * pSourceBuffer = (byte *)bitmapData.Scan0;
                        for (int y = 0; y < destImage.Height; y++)
                        {
                            sourceIndex = y * bitmapData.Stride;
                            destIndex   = destImage.GetBufferOffsetXY(0, destImage.Height - 1 - y);
                            for (int x = 0; x < destImage.Width; x++)
                            {
                                destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
                                destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
                                destBuffer[destIndex++] = pSourceBuffer[sourceIndex++];
                                destBuffer[destIndex++] = 255;
                            }
                        }
                    }

                    m_WidowsBitmap.UnlockBits(bitmapData);
                    return(true);
                }

                case System.Drawing.Imaging.PixelFormat.Format8bppIndexed:
                {
                    Copy8BitDataToImage(destImage, m_WidowsBitmap);
                    return(true);
                }

                default:
                    throw new System.NotImplementedException();
                }
            }
            return(false);
        }
コード例 #10
0
ファイル: FloodFiller.cs プロジェクト: glocklueng/agg-sharp
		public void Fill(ImageBuffer bufferToFillOn, int x, int y)
		{
			unchecked // this way we can overflow the uint on negative and get a big number
			{
				if ((uint)x > bufferToFillOn.Width || (uint)y > bufferToFillOn.Height)
				{
					return;
				}
			}

			destImage = bufferToFillOn;
			imageStride = destImage.StrideInBytes();
			destBuffer = destImage.GetBuffer();
			int imageWidth = destImage.Width;
			int imageHeight = destImage.Height;

			pixelsChecked = new bool[destImage.Width * destImage.Height];

			int startColorBufferOffset = destImage.GetBufferOffsetXY(x, y);

			fillRule.SetStartColor(new RGBA_Bytes(destImage.GetBuffer()[startColorBufferOffset + 2], destImage.GetBuffer()[startColorBufferOffset + 1], destImage.GetBuffer()[startColorBufferOffset]));

			LinearFill(x, y);

			while (ranges.Count > 0)
			{
				Range range = ranges.Dequeue();

				int downY = range.y - 1;
				int upY = range.y + 1;
				int downPixelOffset = (imageWidth * (range.y - 1)) + range.startX;
				int upPixelOffset = (imageWidth * (range.y + 1)) + range.startX;
				for (int rangeX = range.startX; rangeX <= range.endX; rangeX++)
				{
					if (range.y > 0)
					{
						if (!pixelsChecked[downPixelOffset])
						{
							int bufferOffset = destImage.GetBufferOffsetXY(rangeX, downY);
							if (fillRule.CheckPixel(destBuffer, bufferOffset))
							{
								LinearFill(rangeX, downY);
							}
						}
					}

					if (range.y < (imageHeight - 1))
					{
						if (!pixelsChecked[upPixelOffset])
						{
							int bufferOffset = destImage.GetBufferOffsetXY(rangeX, upY);
							if (fillRule.CheckPixel(destBuffer, bufferOffset))
							{
								LinearFill(rangeX, upY);
							}
						}
					}
					upPixelOffset++;
					downPixelOffset++;
				}
			}
		}
コード例 #11
0
ファイル: Erode.cs プロジェクト: glocklueng/agg-sharp
		public static void DoErode3x3MinValue(ImageBuffer source, ImageBuffer dest)
		{
			if (source.BitDepth != 32 || dest.BitDepth != 32)
			{
				throw new NotImplementedException("We only work with 32 bit at the moment.");
			}

			if (source.Width != dest.Width || source.Height != dest.Height)
			{
				throw new NotImplementedException("Source and Dest have to be the same size");
			}

			int height = source.Height;
			int width = source.Width;
			int sourceStrideInBytes = source.StrideInBytes();
			int destStrideInBytes = dest.StrideInBytes();
			byte[] sourceBuffer = source.GetBuffer();
			byte[] destBuffer = dest.GetBuffer();

			// This can be made much faster by holding the buffer pointer and offsets better // LBB 2013 06 09
			for (int testY = 1; testY < height - 1; testY++)
			{
				for (int testX = 1; testX < width - 1; testX++)
				{
					RGBA_Bytes minColor = RGBA_Bytes.White;
					int sourceOffset = source.GetBufferOffsetXY(testX, testY - 1);

					// x-1, y-1
					//minColor = MinColor(sourceBuffer, minColor, sourceOffset - 4);
					// x0, y-1
					minColor = MinColor(sourceBuffer, minColor, sourceOffset + 0);
					// x1, y-1
					//minColor = MinColor(sourceBuffer, minColor, sourceOffset + 4);

					// x-1, y0
					minColor = MinColor(sourceBuffer, minColor, sourceOffset + sourceStrideInBytes - 4);
					// x0, y0
					minColor = MinColor(sourceBuffer, minColor, sourceOffset + sourceStrideInBytes + 0);
					// x+1, y0
					minColor = MinColor(sourceBuffer, minColor, sourceOffset + sourceStrideInBytes + 4);

					// x-1, y+1
					//minColor = MinColor(sourceBuffer, minColor, sourceOffset + sourceStrideInBytes * 2 - 4);
					// x0, y+1
					minColor = MinColor(sourceBuffer, minColor, sourceOffset + sourceStrideInBytes * 2 + 0);
					// x+1, y+1
					//minColor = MinColor(sourceBuffer, minColor, sourceOffset + sourceStrideInBytes * 2 + 4);

					int destOffset = dest.GetBufferOffsetXY(testX, testY);
					destBuffer[destOffset + 2] = minColor.red;
					destBuffer[destOffset + 1] = minColor.green;
					destBuffer[destOffset + 0] = minColor.blue;
					destBuffer[destOffset + 3] = 255;
				}
			}
		}