/// <summary>
/// Resizes the image to the new dimensions
/// </summary>
/// <param name="srcImage"></param>
/// <param name="newWidth"></param>
/// <param name="newHeight"></param>
/// <returns></returns>
public static System.Drawing.Bitmap ResizeImage(System.Drawing.Bitmap srcImage, int newWidth, int newHeight)
{
if (srcImage == null)
{
throw new DjvuArgumentNullException(nameof(srcImage));
}
// Check if the image needs resizing
if (srcImage.Width == newWidth && srcImage.Height == newHeight)
{
return(srcImage);
}
if (newWidth <= 0 || newHeight <= 0)
{
throw new DjvuArgumentException(
$"Invalid new image dimensions width: {newWidth}, height: {newHeight}",
nameof(newWidth) + " " + nameof(newHeight));
}
// Resize the image
System.Drawing.Bitmap newImage = new System.Drawing.Bitmap(newWidth, newHeight, srcImage.PixelFormat);
using (System.Drawing.Graphics gr = System.Drawing.Graphics.FromImage(newImage))
{
gr.SmoothingMode = SmoothingMode.HighQuality;
gr.InterpolationMode = InterpolationMode.HighQualityBicubic;
gr.PixelOffsetMode = PixelOffsetMode.HighQuality;
gr.DrawImage(srcImage, new System.Drawing.Rectangle(0, 0, newWidth, newHeight));
}
srcImage.Dispose();
return(newImage);
}
/// <summary>
/// Clears the stored image from memory
/// </summary>
public void ClearImage()
{
IsPageImageCached = false;
if (_image != null)
{
_image.Dispose();
_image = null;
}
}
public void Disposer()
{
_device.Dispose();
_output1.Dispose();
_texture2D.Dispose();
_outputDuplication.Dispose();
//_textureDescription.Dispose();
_bitmap.Dispose();
_bitmapPlayerRect.Dispose();
_screenResource.Dispose();
//_frameCaptureData.Dispose();
GC.Collect();
}
internal static void LoadTextureInternal(Texture t, System.Drawing.Bitmap bmp)
{
System.Drawing.Imaging.PixelFormat lock_format;
switch (bmp.PixelFormat)
{
case System.Drawing.Imaging.PixelFormat.Format32bppArgb:
lock_format = System.Drawing.Imaging.PixelFormat.Format32bppArgb;
break;
case System.Drawing.Imaging.PixelFormat.Format24bppRgb:
lock_format = System.Drawing.Imaging.PixelFormat.Format32bppArgb;
break;
default:
t.Failed = true;
return;
}
int glTex;
// Create the opengl texture
GL.GenTextures(1, out glTex);
GL.BindTexture(TextureTarget.Texture2D, glTex);
lastTextureID = glTex;
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
// Sort out our GWEN texture
t.RendererData = glTex;
t.Width = bmp.Width;
t.Height = bmp.Height;
var data = bmp.LockBits(new System.Drawing.Rectangle(0, 0, bmp.Width, bmp.Height), ImageLockMode.ReadOnly, lock_format);
GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba, t.Width, t.Height, 0, PixelFormat.Bgra, PixelType.UnsignedByte, data.Scan0);
bmp.UnlockBits(data);
bmp.Dispose();
}
protected virtual void Dispose(bool disposing)
{
if (Disposed)
{
return;
}
if (disposing)
{
}
_Image?.Dispose();
_Image = null;
_ThumbnailImage?.Dispose();
_ThumbnailImage = null;
_Disposed = true;
}
/// <summary>
/// Resizes the image to the new dimensions
/// </summary>
/// <param name="srcImage"></param>
/// <param name="newWidth"></param>
/// <param name="newHeight"></param>
/// <returns></returns>
public System.Drawing.Bitmap ResizeImage(System.Drawing.Bitmap srcImage, int newWidth, int newHeight)
{
// Check if the image needs resizing
if (srcImage.Width == newWidth && srcImage.Height == newHeight)
{
return(srcImage);
}
// Resize the image
System.Drawing.Bitmap newImage = new System.Drawing.Bitmap(newWidth, newHeight);
using (System.Drawing.Graphics gr = System.Drawing.Graphics.FromImage(newImage))
{
gr.SmoothingMode = SmoothingMode.HighQuality;
gr.InterpolationMode = InterpolationMode.HighQualityBicubic;
gr.PixelOffsetMode = PixelOffsetMode.HighQuality;
gr.DrawImage(srcImage, new System.Drawing.Rectangle(0, 0, newWidth, newHeight));
}
srcImage.Dispose();
return(newImage);
}
internal PageImage GetPageImage(Report rpt, Row row)
{
string mtype = null;
Stream strm = null;
System.Drawing.Bitmap im = null;
PageImage pi = null;
WorkClass wc = GetWC(rpt);
if (wc.PgImage != null)
{ // have we already generated this one
// reuse most of the work; only position will likely change
pi = new PageImage(wc.PgImage.ImgFormat, wc.PgImage.ImageData, wc.PgImage.SamplesW, wc.PgImage.SamplesH);
pi.Name = wc.PgImage.Name; // this is name it will be shared under
return(pi);
}
try
{
strm = GetImageStream(rpt, row, out mtype);
if (strm == null)
{
rpt.rl.LogError(4, string.Format("Unable to load image {0}.",
this._Value == null?"": this._Value.EvaluateString(rpt, row)));
return(null);
}
im = Bitmap.FromStream(strm);
int height = im.Height;
int width = im.Width;
MemoryStream ostrm = new MemoryStream();
ImageFormat imf;
// if (mtype.ToLower() == "image/jpeg") //TODO: how do we get png to work
// imf = ImageFormatType.Jpeg;
// else
imf = ImageFormat.Jpeg;
System.Drawing.Imaging.ImageCodecInfo[] info;
info = ImageCodecInfo.GetImageEncoders();
EncoderParameters encoderParameters;
encoderParameters = new EncoderParameters(1);
encoderParameters.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, ImageQualityManager.EmbeddedImageQuality);
System.Drawing.Imaging.ImageCodecInfo codec = null;
for (int i = 0; i < info.Length; i++)
{
if (info[i].FormatDescription == "JPEG")
{
codec = info[i];
break;
}
}
im.Save(ostrm, codec, encoderParameters);
byte[] ba = ostrm.ToArray();
ostrm.Close();
pi = new PageImage(imf, ba, width, height);
pi.SI = new StyleInfo(); // this will just default everything
if (_BackgroundRepeat != null)
{
string r = _BackgroundRepeat.EvaluateString(rpt, row).ToLower();
switch (r)
{
case "repeat":
pi.Repeat = ImageRepeat.Repeat;
break;
case "repeatx":
pi.Repeat = ImageRepeat.RepeatX;
break;
case "repeaty":
pi.Repeat = ImageRepeat.RepeatY;
break;
case "norepeat":
default:
pi.Repeat = ImageRepeat.NoRepeat;
break;
}
}
else
{
pi.Repeat = ImageRepeat.Repeat;
}
if (_ConstantImage)
{
wc.PgImage = pi;
// create unique name; PDF generation uses this to optimize the saving of the image only once
pi.Name = "pi" + Interlocked.Increment(ref Parser.Counter).ToString(); // create unique name
}
}
finally
{
if (strm != null)
{
strm.Close();
}
if (im != null)
{
im.Dispose();
}
}
return(pi);
}
