private void Check(LoadTestDatabase db, CheckType type, UriInfo info, ResultData request)
{
switch (type)
{
case CheckType.Css:
case CheckType.JS:
String value = request.ContentEncoding2.GetString(request.Data);
String min = minify(value);
String expanded = expand(value);
double percentMin = 100F - (((double)min.Length / (double)value.Length) * 100F);
double percentExp = 100F - (((double)value.Length / (double)expanded.Length) * 100F);
if (percentMin > 10)
{
db.insertMessages(this.TestName, "5. Otimização de arquivos (minify *.js, *.css)", "URL: <a href=\"" + info.Target.AbsoluteUri + "\" target=\"_blank\">" + info.Target.AbsoluteUri + "</a>" + Environment.NewLine + (info.Referer != null ? "Referer: <a href=\"" + info.Referer.AbsoluteUri + "\" target=\"_blank\">" + info.Referer.AbsoluteUri + "</a>" + Environment.NewLine : "") + Environment.NewLine + "Redução estimada de: " + FileResources.formatData(percentMin, ChartDataType.Percent) + Environment.NewLine + "Tamanho original: " + FileResources.formatData(value.Length, ChartDataType.Bytes) + Environment.NewLine + "Tamanho reduzido: " + FileResources.formatData(min.Length, ChartDataType.Bytes));
db.insertOptimization(this.TestName, request.RequestUri, value.Length, min.Length);
}
if (percentExp > 3)
{
db.insertNonOptimization(this.TestName, request.RequestUri, value.Length, expanded.Length);
}
break;
case CheckType.Image:
String text = "";
String imageInfo = "";
imageInfo = "Tamanho: " + FileResources.formatData(request.DataLength, ChartDataType.Bytes) + Environment.NewLine;
if (request.DataLength > (100 * 1024)) //100 Kb
{
text += "* Tamanho da imagem acima de 100Kb" + Environment.NewLine;
}
using (MemoryStream stm = new MemoryStream(request.Data))
using (Image bmp = Image.FromStream(stm))
{
Boolean resolution = false;
PixelFormat pxFormat = PixelFormat.Format24bppRgb;
float saveRes = bmp.HorizontalResolution;
try
{
imageInfo += "Resolução: " + bmp.Width + " x " + bmp.Height + "px" + Environment.NewLine;
}
catch { }
try
{
if ((((Int32)bmp.HorizontalResolution) > 72) || (((Int32)bmp.VerticalResolution) > 72))
{
text += "* Qualidade (DPI) da imagem acima de 72" + Environment.NewLine;
}
imageInfo += "DPI: " + bmp.HorizontalResolution + Environment.NewLine;
resolution = true;
saveRes = 72;
}
catch { }
try
{
switch (bmp.PixelFormat)
{
case System.Drawing.Imaging.PixelFormat.Format32bppArgb:
case System.Drawing.Imaging.PixelFormat.Format32bppPArgb:
case System.Drawing.Imaging.PixelFormat.Format32bppRgb:
case System.Drawing.Imaging.PixelFormat.Format48bppRgb:
case System.Drawing.Imaging.PixelFormat.Format64bppArgb:
case System.Drawing.Imaging.PixelFormat.Format64bppPArgb:
text += "* Qualidade (Bit depth) da imagem acima de 24 bits" + Environment.NewLine;
resolution = true;
pxFormat = PixelFormat.Format24bppRgb;
break;
}
switch (bmp.PixelFormat)
{
case System.Drawing.Imaging.PixelFormat.Format8bppIndexed:
imageInfo += "Bit depth: 16 bits" + Environment.NewLine;
pxFormat = bmp.PixelFormat;
break;
case System.Drawing.Imaging.PixelFormat.Format16bppArgb1555:
case System.Drawing.Imaging.PixelFormat.Format16bppGrayScale:
case System.Drawing.Imaging.PixelFormat.Format16bppRgb555:
case System.Drawing.Imaging.PixelFormat.Format16bppRgb565:
imageInfo += "Bit depth: 16 bits" + Environment.NewLine;
pxFormat = bmp.PixelFormat;
break;
case System.Drawing.Imaging.PixelFormat.Format24bppRgb:
imageInfo += "Bit depth: 24 bits" + Environment.NewLine;
pxFormat = PixelFormat.Format24bppRgb;
break;
case System.Drawing.Imaging.PixelFormat.Format32bppArgb:
case System.Drawing.Imaging.PixelFormat.Format32bppPArgb:
case System.Drawing.Imaging.PixelFormat.Format32bppRgb:
imageInfo += "Bit depth: 32 bits" + Environment.NewLine;
pxFormat = PixelFormat.Format24bppRgb;
break;
case System.Drawing.Imaging.PixelFormat.Format48bppRgb:
imageInfo += "Bit depth: 48 bits" + Environment.NewLine;
pxFormat = PixelFormat.Format24bppRgb;
break;
case System.Drawing.Imaging.PixelFormat.Format64bppArgb:
case System.Drawing.Imaging.PixelFormat.Format64bppPArgb:
imageInfo += "Bit depth: 64 bits" + Environment.NewLine;
pxFormat = PixelFormat.Format24bppRgb;
break;
default:
imageInfo += "Bit depth: " + bmp.PixelFormat.ToString() + Environment.NewLine;
break;
}
}
catch { }
try
{
using (ImageInfo imgInfo = new ImageInfo(bmp))
{
if (imgInfo.HasExif)
{
text += "* Imagem com informações EXIF. A remoção desta informação reduz o tamanho da imagem" + Environment.NewLine;
resolution = true;
}
}
}
catch { }
//Realiza a Otimização sugerida e calcula o tamanho estimado a conseguir
if (resolution)
{
try
{
ImageFormat saveFormat = ImageFormat.Jpeg;
if (bmp.RawFormat.Equals(System.Drawing.Imaging.ImageFormat.Jpeg))
{
saveFormat = System.Drawing.Imaging.ImageFormat.Jpeg;
}
if (bmp.RawFormat.Equals(System.Drawing.Imaging.ImageFormat.Bmp))
{
saveFormat = System.Drawing.Imaging.ImageFormat.Bmp;
}
if (bmp.RawFormat.Equals(System.Drawing.Imaging.ImageFormat.Png))
{
saveFormat = System.Drawing.Imaging.ImageFormat.Png;
}
if (bmp.RawFormat.Equals(System.Drawing.Imaging.ImageFormat.Emf))
{
saveFormat = System.Drawing.Imaging.ImageFormat.Emf;
}
if (bmp.RawFormat.Equals(System.Drawing.Imaging.ImageFormat.Exif))
{
saveFormat = System.Drawing.Imaging.ImageFormat.Exif;
}
if (bmp.RawFormat.Equals(System.Drawing.Imaging.ImageFormat.Gif))
{
saveFormat = System.Drawing.Imaging.ImageFormat.Gif;
}
if (bmp.RawFormat.Equals(System.Drawing.Imaging.ImageFormat.Icon))
{
saveFormat = System.Drawing.Imaging.ImageFormat.Icon;
}
if (bmp.RawFormat.Equals(System.Drawing.Imaging.ImageFormat.MemoryBmp))
{
saveFormat = System.Drawing.Imaging.ImageFormat.MemoryBmp;
}
if (bmp.RawFormat.Equals(System.Drawing.Imaging.ImageFormat.Tiff))
{
saveFormat = System.Drawing.Imaging.ImageFormat.Tiff;
}
if (bmp.RawFormat.Equals(System.Drawing.Imaging.ImageFormat.Wmf))
{
saveFormat = System.Drawing.Imaging.ImageFormat.Wmf;
}
Bitmap newImage = new Bitmap(bmp.Width, bmp.Height, pxFormat);
newImage.SetResolution(saveRes, saveRes);
Graphics g = Graphics.FromImage(newImage);
g.SmoothingMode = SmoothingMode.AntiAlias;
g.InterpolationMode = InterpolationMode.HighQualityBicubic;
g.PixelOffsetMode = PixelOffsetMode.HighQuality;
g.DrawImage(bmp, 0, 0);
g.Dispose();
MemoryStream newStm = new MemoryStream();
newImage.Save(newStm, saveFormat);
if (newStm.Length < request.DataLength)
{
db.insertOptimization(this.TestName, request.RequestUri, request.DataLength, newStm.Length);
double percent2 = 100F - (((double)newStm.Length / (double)request.DataLength) * 100F);
text += Environment.NewLine;
text += "Tamanho estimado após redução: " + FileResources.formatData(newStm.Length, ChartDataType.Bytes) + Environment.NewLine;
text += "Redução estimada de: " + FileResources.formatData(percent2, ChartDataType.Percent) + Environment.NewLine;
}
else
{
//Não há redução, a imagem está otimizada
text = "";
}
newImage.Dispose();
newImage = null;
newStm.Dispose();
newStm = null;
}
catch (Exception ex)
{
#if DEBUG
text += "Erro ao calcular a redução: " + ex.Message;
#endif
}
}
}
if (text != "")
{
db.insertMessages(this.TestName, "6. Otimização de imagem", "Img URL: <a href=\"" + info.Target.AbsoluteUri + "\" target=\"_blank\">" + info.Target.AbsoluteUri + "</a>" + Environment.NewLine + (info.Referer != null ? "Referer: <a href=\"" + info.Referer.AbsoluteUri + "\" target=\"_blank\">" + info.Referer.AbsoluteUri + "</a>" + Environment.NewLine : "") + Environment.NewLine + imageInfo + Environment.NewLine + text);
}
break;
}
}