public static void EncodeImage(this d2.Bitmap target, ImageFormat imageFormat, Stream outputStream)
{
var width = target.PixelSize.Width;
var height = target.PixelSize.Height;
var wicBitmap = new wic.Bitmap(DXGraphicsService.FactoryImaging, width, height,
wic.PixelFormat.Format32bppBGR, wic.BitmapCreateCacheOption.CacheOnLoad);
var renderTargetProperties = new d2.RenderTargetProperties(d2.RenderTargetType.Default,
new d2.PixelFormat(Format.Unknown,
d2.AlphaMode.Unknown), 0, 0,
d2.RenderTargetUsage.None,
d2.FeatureLevel.Level_DEFAULT);
var d2DRenderTarget = new d2.WicRenderTarget(target.Factory, wicBitmap, renderTargetProperties);
d2DRenderTarget.BeginDraw();
d2DRenderTarget.Clear(global::SharpDX.Color.Transparent);
d2DRenderTarget.DrawBitmap(target, 1, d2.BitmapInterpolationMode.Linear);
d2DRenderTarget.EndDraw();
var stream = new wic.WICStream(DXGraphicsService.FactoryImaging, outputStream);
// Initialize a Jpeg encoder with this stream
var encoder = new wic.BitmapEncoder(DXGraphicsService.FactoryImaging, GetImageFormat(imageFormat));
encoder.Initialize(stream);
// Create a Frame encoder
var bitmapFrameEncode = new wic.BitmapFrameEncode(encoder);
bitmapFrameEncode.Initialize();
bitmapFrameEncode.SetSize(width, height);
Guid pixelFormatGuid = wic.PixelFormat.FormatDontCare;
bitmapFrameEncode.SetPixelFormat(ref pixelFormatGuid);
bitmapFrameEncode.WriteSource(wicBitmap);
bitmapFrameEncode.Commit();
encoder.Commit();
bitmapFrameEncode.Dispose();
encoder.Dispose();
stream.Dispose();
d2DRenderTarget.Dispose();
wicBitmap.Dispose();
}
internal CCTexture2D CreateTextSprite(string text, CCFontDefinition textDefinition)
{
if (string.IsNullOrEmpty(text))
return new CCTexture2D();
int imageWidth;
int imageHeight;
var textDef = textDefinition;
var contentScaleFactorWidth = CCLabel.DefaultTexelToContentSizeRatios.Width;
var contentScaleFactorHeight = CCLabel.DefaultTexelToContentSizeRatios.Height;
textDef.FontSize *= contentScaleFactorWidth;
textDef.Dimensions.Width *= contentScaleFactorWidth;
textDef.Dimensions.Height *= contentScaleFactorHeight;
var font = CreateFont(textDef.FontName, textDef.FontSize);
if (font == null)
{
CCLog.Log("Can not create font {0} with size {1}.", textDef.FontName, textDef.FontSize);
return new CCTexture2D();
}
var _currentFontSizeEm = textDef.FontSize;
var _currentDIP = ConvertPointSizeToDIP(_currentFontSizeEm);
// color
var foregroundColor = Color4.White;
// alignment
var horizontalAlignment = textDef.Alignment;
var verticleAlignement = textDef.LineAlignment;
var textAlign = (CCTextAlignment.Right == horizontalAlignment) ? TextAlignment.Trailing
: (CCTextAlignment.Center == horizontalAlignment) ? TextAlignment.Center
: TextAlignment.Leading;
var paragraphAlign = (CCVerticalTextAlignment.Bottom == vertAlignment) ? ParagraphAlignment.Far
: (CCVerticalTextAlignment.Center == vertAlignment) ? ParagraphAlignment.Center
: ParagraphAlignment.Near;
// LineBreak
var lineBreak = (CCLabelLineBreak.Character == textDef.LineBreak) ? WordWrapping.Wrap
: (CCLabelLineBreak.Word == textDef.LineBreak) ? WordWrapping.Wrap
: WordWrapping.NoWrap;
// LineBreak
// TODO: Find a way to specify the type of line breaking if possible.
var dimensions = new CCSize(textDef.Dimensions.Width, textDef.Dimensions.Height);
var layoutAvailable = true;
if (dimensions.Width <= 0)
{
dimensions.Width = 8388608;
layoutAvailable = false;
}
if (dimensions.Height <= 0)
{
dimensions.Height = 8388608;
layoutAvailable = false;
}
var fontName = font.FontFamily.FamilyNames.GetString(0);
var textFormat = new TextFormat(FactoryDWrite, fontName,
_currentFontCollection, FontWeight.Regular, FontStyle.Normal, FontStretch.Normal, _currentDIP);
textFormat.TextAlignment = textAlign;
textFormat.ParagraphAlignment = paragraphAlign;
var textLayout = new TextLayout(FactoryDWrite, text, textFormat, dimensions.Width, dimensions.Height);
var boundingRect = new RectangleF();
// Loop through all the lines so we can find our drawing offsets
var textMetrics = textLayout.Metrics;
var lineCount = textMetrics.LineCount;
// early out if something went wrong somewhere and nothing is to be drawn
if (lineCount == 0)
return new CCTexture2D();
// Fill out the bounding rect width and height so we can calculate the yOffset later if needed
boundingRect.X = 0;
boundingRect.Y = 0;
boundingRect.Width = textMetrics.Width;
boundingRect.Height = textMetrics.Height;
if (!layoutAvailable)
{
if (dimensions.Width == 8388608)
{
dimensions.Width = boundingRect.Width;
}
if (dimensions.Height == 8388608)
{
dimensions.Height = boundingRect.Height;
}
}
imageWidth = (int)dimensions.Width;
imageHeight = (int)dimensions.Height;
// Recreate our layout based on calculated dimensions so that we can draw the text correctly
// in our image when Alignment is not Left.
if (textAlign != TextAlignment.Leading)
{
textLayout.MaxWidth = dimensions.Width;
textLayout.MaxHeight = dimensions.Height;
}
// Line alignment
var yOffset = (CCVerticalTextAlignment.Bottom == verticleAlignement
|| boundingRect.Bottom >= dimensions.Height) ? dimensions.Height - boundingRect.Bottom // align to bottom
: (CCVerticalTextAlignment.Top == verticleAlignement) ? 0 // align to top
: (imageHeight - boundingRect.Bottom) * 0.5f; // align to center
SharpDX.WIC.Bitmap sharpBitmap = null;
WicRenderTarget sharpRenderTarget = null;
SolidColorBrush solidBrush = null;
try
{
// Select our pixel format
var pixelFormat = SharpDX.WIC.PixelFormat.Format32bppPRGBA;
// create our backing bitmap
sharpBitmap = new SharpDX.WIC.Bitmap(FactoryImaging, imageWidth, imageHeight, pixelFormat, BitmapCreateCacheOption.CacheOnLoad);
// Create the render target that we will draw to
sharpRenderTarget = new WicRenderTarget(Factory2D, sharpBitmap, new RenderTargetProperties());
// Create our brush to actually draw with
solidBrush = new SolidColorBrush(sharpRenderTarget, foregroundColor);
// Begin the drawing
sharpRenderTarget.BeginDraw();
if (textDefinition.isShouldAntialias)
sharpRenderTarget.AntialiasMode = AntialiasMode.Aliased;
// Clear it
sharpRenderTarget.Clear(TransparentColor);
// Draw the text to the bitmap
sharpRenderTarget.DrawTextLayout(new Vector2(boundingRect.X, yOffset), textLayout, solidBrush);
// End our drawing which will commit the rendertarget to the bitmap
sharpRenderTarget.EndDraw();
// Debugging purposes
//var s = "Label4";
//SaveToFile(@"C:\Xamarin\" + s + ".png", _bitmap, _renderTarget);
// The following code creates a .png stream in memory of our Bitmap and uses it to create our Textue2D
Texture2D tex = null;
using (var memStream = new MemoryStream())
{
using (var encoder = new PngBitmapEncoder(FactoryImaging, memStream))
using (var frameEncoder = new BitmapFrameEncode(encoder))
{
frameEncoder.Initialize();
frameEncoder.WriteSource(sharpBitmap);
frameEncoder.Commit();
encoder.Commit();
}
// Create the Texture2D from the png stream
tex = Texture2D.FromStream(CCDrawManager.SharedDrawManager.XnaGraphicsDevice, memStream);
}
// Return our new CCTexture2D created from the Texture2D which will have our text drawn on it.
return new CCTexture2D(tex);
}
catch (Exception exc)
{
CCLog.Log("CCLabel-Windows: Unable to create the backing image of our text. Message: {0}", exc.StackTrace);
}
finally
{
if (sharpBitmap != null)
{
sharpBitmap.Dispose();
sharpBitmap = null;
}
if (sharpRenderTarget != null)
{
sharpRenderTarget.Dispose();
sharpRenderTarget = null;
}
if (solidBrush != null)
{
solidBrush.Dispose();
solidBrush = null;
}
if (textFormat != null)
{
textFormat.Dispose();
textFormat = null;
}
if (textLayout != null)
{
textLayout.Dispose();
textLayout = null;
}
}
// If we have reached here then something has gone wrong.
return new CCTexture2D();
}