Пример #1
0
        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);
        }
Пример #2
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());
        }
        private static void Copy8BitDataToImage(ImageBuffer destImage, Bitmap bitmap)
        {
            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;

                System.Drawing.Color[] colors = bitmap.Palette.Entries;

                for (int y = 0; y < destImage.Height; y++)
                {
                    sourceIndex = y * bitmapData.Stride;
                    destIndex   = destImage.GetBufferOffsetY(destImage.Height - 1 - y);
                    for (int x = 0; x < destImage.Width; x++)
                    {
                        System.Drawing.Color color = colors[pSourceBuffer[sourceIndex++]];
                        destBuffer[destIndex++] = color.B;
                        destBuffer[destIndex++] = color.G;
                        destBuffer[destIndex++] = color.R;
                        destBuffer[destIndex++] = color.A;
                    }
                }
            }

            bitmap.UnlockBits(bitmapData);
        }
Пример #4
0
        private void Initialize(ImageBuffer sourceImage, RectangleInt boundsToCopyFrom)
        {
            if (sourceImage == this)
            {
                throw new Exception("We do not create a temp buffer for this to work.  You must have a source distinct from the dest.");
            }
            Deallocate();
            Allocate(boundsToCopyFrom.Width, boundsToCopyFrom.Height, boundsToCopyFrom.Width * sourceImage.BitDepth / 8, sourceImage.BitDepth);
            SetRecieveBlender(sourceImage.GetRecieveBlender());

            if (width != 0 && height != 0)
            {
                RectangleInt DestRect           = new RectangleInt(0, 0, boundsToCopyFrom.Width, boundsToCopyFrom.Height);
                RectangleInt AbsoluteSourceRect = boundsToCopyFrom;
                // The first thing we need to do is make sure the frame is cleared. LBB [3/15/2004]
                MatterHackers.Agg.Graphics2D graphics2D = NewGraphics2D();
                graphics2D.Clear(new RGBA_Bytes(0, 0, 0, 0));

                int x = -boundsToCopyFrom.Left - (int)sourceImage.OriginOffset.x;
                int y = -boundsToCopyFrom.Bottom - (int)sourceImage.OriginOffset.y;

                graphics2D.Render(sourceImage, x, y, 0, 1, 1);
            }
        }
Пример #5
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;
        }
Пример #6
0
        private static int LowLevelReadTGABitsFromBuffer(ImageBuffer imageToReadTo, byte[] wholeFileBuffer, int DestBitDepth)
        {
            STargaHeader TargaHeader = new STargaHeader();
            int          FileReadOffset;

            if (!ReadTGAInfo(wholeFileBuffer, out TargaHeader))
            {
                return(0);
            }

            // if the frame we are loading is different then the one we have allocated
            // or we don't have any bits allocated

            if ((imageToReadTo.Width * imageToReadTo.Height) != (TargaHeader.Width * TargaHeader.Height))
            {
                imageToReadTo.Allocate(TargaHeader.Width, TargaHeader.Height, TargaHeader.Width * DestBitDepth / 8, DestBitDepth);
            }

            // work out the line width
            switch (imageToReadTo.BitDepth)
            {
            case 24:
                TGABytesPerLine = imageToReadTo.Width * 3;
                if (imageToReadTo.GetRecieveBlender() == null)
                {
                    imageToReadTo.SetRecieveBlender(new BlenderBGR());
                }
                break;

            case 32:
                TGABytesPerLine = imageToReadTo.Width * 4;
                if (imageToReadTo.GetRecieveBlender() == null)
                {
                    imageToReadTo.SetRecieveBlender(new BlenderBGRA());
                }
                break;

            default:
                throw new System.Exception("Bad bit depth.");
            }

            if (TGABytesPerLine > 0)
            {
                byte[] BufferToDecompressTo = null;
                FileReadOffset = TargaHeaderSize + TargaHeader.PostHeaderSkip;

                if (TargaHeader.ImageType == 10)                 // 10 is RLE compressed
                {
                    BufferToDecompressTo = new byte[TGABytesPerLine * 2];
                }

                // read all the lines *
                for (int i = 0; i < imageToReadTo.Height; i++)
                {
                    byte[] BufferToCopyFrom;
                    int    CopyOffset = 0;

                    int CurReadLine;

                    // bit 5 tells us if the image is stored top to bottom or bottom to top
                    if ((TargaHeader.Descriptor & 0x20) != 0)
                    {
                        // bottom to top
                        CurReadLine = imageToReadTo.Height - i - 1;
                    }
                    else
                    {
                        // top to bottom
                        CurReadLine = i;
                    }

                    if (TargaHeader.ImageType == 10)                     // 10 is RLE compressed
                    {
                        FileReadOffset   = Decompress(BufferToDecompressTo, wholeFileBuffer, FileReadOffset, imageToReadTo.Width, TargaHeader.BPP, CurReadLine);
                        BufferToCopyFrom = BufferToDecompressTo;
                    }
                    else
                    {
                        BufferToCopyFrom = wholeFileBuffer;
                        CopyOffset       = FileReadOffset;
                    }

                    int    bufferOffset;
                    byte[] imageBuffer = imageToReadTo.GetBuffer(out bufferOffset);

                    switch (imageToReadTo.BitDepth)
                    {
                    case 8:
                        switch (TargaHeader.BPP)
                        {
                        case 24:
                            Do24To8Bit(imageBuffer, BufferToCopyFrom, CopyOffset, imageToReadTo.Width, CurReadLine);
                            break;

                        case 32:
                            Do32To8Bit(imageBuffer, BufferToCopyFrom, CopyOffset, imageToReadTo.Width, CurReadLine);
                            break;
                        }
                        break;

                    case 24:
                        switch (TargaHeader.BPP)
                        {
                        case 24:
                            Do24To24Bit(imageBuffer, BufferToCopyFrom, CopyOffset, imageToReadTo.Width, CurReadLine);
                            break;

                        case 32:
                            Do32To24Bit(imageBuffer, BufferToCopyFrom, CopyOffset, imageToReadTo.Width, CurReadLine);
                            break;
                        }
                        break;

                    case 32:
                        switch (TargaHeader.BPP)
                        {
                        case 24:
                            Do24To32Bit(imageBuffer, BufferToCopyFrom, CopyOffset, imageToReadTo.Width, CurReadLine);
                            break;

                        case 32:
                            Do32To32Bit(imageBuffer, BufferToCopyFrom, CopyOffset, imageToReadTo.Width, CurReadLine);
                            break;
                        }
                        break;

                    default:
                        throw new System.Exception("Bad bit depth");
                    }

                    if (TargaHeader.ImageType != 10)                     // 10 is RLE compressed
                    {
                        FileReadOffset += TGABytesPerLine;
                    }
                }
            }

            return(TargaHeader.Width);
        }
Пример #7
0
		private static unsafe int LowLevelReadTGABitsFromBuffer(ImageBuffer imageToReadTo, byte[] wholeFileBuffer, int DestBitDepth)
		{
			STargaHeader TargaHeader = new STargaHeader();
			int FileReadOffset;

			if (!ReadTGAInfo(wholeFileBuffer, out TargaHeader))
			{
				return 0;
			}

			// if the frame we are loading is different then the one we have allocated
			// or we don't have any bits allocated

			if ((imageToReadTo.Width * imageToReadTo.Height) != (TargaHeader.Width * TargaHeader.Height))
			{
				imageToReadTo.Allocate(TargaHeader.Width, TargaHeader.Height, TargaHeader.Width * DestBitDepth / 8, DestBitDepth);
			}

			// work out the line width
			switch (imageToReadTo.BitDepth)
			{
				case 24:
					TGABytesPerLine = imageToReadTo.Width * 3;
					if (imageToReadTo.GetRecieveBlender() == null)
					{
						imageToReadTo.SetRecieveBlender(new BlenderBGR());
					}
					break;

				case 32:
					TGABytesPerLine = imageToReadTo.Width * 4;
					if (imageToReadTo.GetRecieveBlender() == null)
					{
						imageToReadTo.SetRecieveBlender(new BlenderBGRA());
					}
					break;

				default:
					throw new System.Exception("Bad bit depth.");
			}

			if (TGABytesPerLine > 0)
			{
				byte[] BufferToDecompressTo = null;
				FileReadOffset = TargaHeaderSize + TargaHeader.PostHeaderSkip;

				if (TargaHeader.ImageType == 10) // 10 is RLE compressed
				{
					BufferToDecompressTo = new byte[TGABytesPerLine * 2];
				}

				// read all the lines *
				for (int i = 0; i < imageToReadTo.Height; i++)
				{
					byte[] BufferToCopyFrom;
					int CopyOffset = 0;

					int CurReadLine;

					// bit 5 tells us if the image is stored top to bottom or bottom to top
					if ((TargaHeader.Descriptor & 0x20) != 0)
					{
						// bottom to top
						CurReadLine = imageToReadTo.Height - i - 1;
					}
					else
					{
						// top to bottom
						CurReadLine = i;
					}

					if (TargaHeader.ImageType == 10) // 10 is RLE compressed
					{
						FileReadOffset = Decompress(BufferToDecompressTo, wholeFileBuffer, FileReadOffset, imageToReadTo.Width, TargaHeader.BPP, CurReadLine);
						BufferToCopyFrom = BufferToDecompressTo;
					}
					else
					{
						BufferToCopyFrom = wholeFileBuffer;
						CopyOffset = FileReadOffset;
					}

					int bufferOffset;
					byte[] imageBuffer = imageToReadTo.GetBuffer(out bufferOffset);

					switch (imageToReadTo.BitDepth)
					{
						case 8:
							switch (TargaHeader.BPP)
							{
								case 24:
									Do24To8Bit(imageBuffer, BufferToCopyFrom, CopyOffset, imageToReadTo.Width, CurReadLine);
									break;

								case 32:
									Do32To8Bit(imageBuffer, BufferToCopyFrom, CopyOffset, imageToReadTo.Width, CurReadLine);
									break;
							}
							break;

						case 24:
							switch (TargaHeader.BPP)
							{
								case 24:
									Do24To24Bit(imageBuffer, BufferToCopyFrom, CopyOffset, imageToReadTo.Width, CurReadLine);
									break;

								case 32:
									Do32To24Bit(imageBuffer, BufferToCopyFrom, CopyOffset, imageToReadTo.Width, CurReadLine);
									break;
							}
							break;

						case 32:
							switch (TargaHeader.BPP)
							{
								case 24:
									Do24To32Bit(imageBuffer, BufferToCopyFrom, CopyOffset, imageToReadTo.Width, CurReadLine);
									break;

								case 32:
									Do32To32Bit(imageBuffer, BufferToCopyFrom, CopyOffset, imageToReadTo.Width, CurReadLine);
									break;
							}
							break;

						default:
							throw new System.Exception("Bad bit depth");
					}

					if (TargaHeader.ImageType != 10) // 10 is RLE compressed
					{
						FileReadOffset += TGABytesPerLine;
					}
				}
			}

			return TargaHeader.Width;
		}
Пример #8
0
		private void Initialize(ImageBuffer sourceImage, RectangleInt boundsToCopyFrom)
		{
			if (sourceImage == this)
			{
				throw new Exception("We do not create a temp buffer for this to work.  You must have a source distinct from the dest.");
			}
			Deallocate();
			Allocate(boundsToCopyFrom.Width, boundsToCopyFrom.Height, boundsToCopyFrom.Width * sourceImage.BitDepth / 8, sourceImage.BitDepth);
			SetRecieveBlender(sourceImage.GetRecieveBlender());

			if (width != 0 && height != 0)
			{
				RectangleInt DestRect = new RectangleInt(0, 0, boundsToCopyFrom.Width, boundsToCopyFrom.Height);
				RectangleInt AbsoluteSourceRect = boundsToCopyFrom;
				// The first thing we need to do is make sure the frame is cleared. LBB [3/15/2004]
				MatterHackers.Agg.Graphics2D graphics2D = NewGraphics2D();
				graphics2D.Clear(new RGBA_Bytes(0, 0, 0, 0));

				int x = -boundsToCopyFrom.Left - (int)sourceImage.OriginOffset.x;
				int y = -boundsToCopyFrom.Bottom - (int)sourceImage.OriginOffset.y;

				graphics2D.Render(sourceImage, x, y, 0, 1, 1);
			}
		}
Пример #9
0
		public static ImageBuffer CreateScaledImage(ImageBuffer unscaledSourceImage, int width, int height)
		{
			ImageBuffer destImage = new ImageBuffer(width, height, 32, unscaledSourceImage.GetRecieveBlender());

			// If the source image is more than twice as big as our dest image.
			while (unscaledSourceImage.Width > destImage.Width * 2)
			{
				// The image sampler we use is a 2x2 filter so we need to scale by a max of 1/2 if we want to get good results.
				// So we scale as many times as we need to get the Image to be the right size.
				// If this were going to be a non-uniform scale we could do the x and y separately to get better results.
				ImageBuffer halfImage = new ImageBuffer(unscaledSourceImage.Width / 2, unscaledSourceImage.Height / 2, 32, unscaledSourceImage.GetRecieveBlender());
				halfImage.NewGraphics2D().Render(unscaledSourceImage, 0, 0, 0, halfImage.Width / (double)unscaledSourceImage.Width, halfImage.Height / (double)unscaledSourceImage.Height);
				unscaledSourceImage = halfImage;
			}

			Graphics2D renderGraphics = destImage.NewGraphics2D();
			renderGraphics.ImageRenderQuality = Graphics2D.TransformQuality.Best;

			renderGraphics.Render(unscaledSourceImage, 0, 0, 0, destImage.Width / (double)unscaledSourceImage.Width, destImage.Height / (double)unscaledSourceImage.Height);

			destImage.MarkImageChanged();

			return destImage;
        }
Пример #10
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());
		}
        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);
        }
Пример #12
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);
        }