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From: Alan Webb <alan_webb@us.ibm.com>

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Changes to support client-side image pre-caching in the region. This
  commit adds an additional calling sequence to the DynamicTexture data
  and URL calls. The new interface allows a dynamic image to be loaded
  into a specific object face (rather than the mandatory ALL_SIDES
  supported today.
  This is in part fulfilment of ticket #458.
This commit is contained in:
Dr Scofield
2009-05-22 16:22:49 +00:00
parent 6626937e9a
commit 3b689e506f
6 changed files with 178 additions and 50 deletions
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96
OpenSim/Region/CoreModules/Scripting/LoadImageURL/LoadImageURLModule.cs
View File

@@ -162,62 +162,80 @@ namespace OpenSim.Region.CoreModules.Scripting.LoadImageURL
private void HttpRequestReturn(IAsyncResult result)
{
RequestState state = (RequestState) result.AsyncState;
WebRequest request = (WebRequest) state.Request;
Stream stream = null;
byte[] imageJ2000 = new byte[0];
try
{
HttpWebResponse response = (HttpWebResponse)request.EndGetResponse(result);
if (response.StatusCode == HttpStatusCode.OK)
if (response != null && response.StatusCode == HttpStatusCode.OK)
{
Bitmap image = new Bitmap(response.GetResponseStream());
Size newsize;
stream = response.GetResponseStream();
if(stream != null)
{
Bitmap image = new Bitmap(stream);
Size newsize;
// TODO: make this a bit less hard coded
if ((image.Height < 64) && (image.Width < 64))
{
newsize = new Size(32, 32);
}
else if ((image.Height < 128) && (image.Width < 128))
{
newsize = new Size(64, 64);
}
else if ((image.Height < 256) && (image.Width < 256))
{
newsize = new Size(128, 128);
}
else if ((image.Height < 512 && image.Width < 512))
{
newsize = new Size(256, 256);
}
else if ((image.Height < 1024 && image.Width < 1024))
{
newsize = new Size(512, 512);
// TODO: make this a bit less hard coded
if ((image.Height < 64) && (image.Width < 64))
{
newsize = new Size(32, 32);
}
else if ((image.Height < 128) && (image.Width < 128))
{
newsize = new Size(64, 64);
}
else if ((image.Height < 256) && (image.Width < 256))
{
newsize = new Size(128, 128);
}
else if ((image.Height < 512 && image.Width < 512))
{
newsize = new Size(256, 256);
}
else if ((image.Height < 1024 && image.Width < 1024))
{
newsize = new Size(512, 512);
}
else
{
newsize = new Size(1024, 1024);
}
Bitmap resize = new Bitmap(image, newsize);
try
{
imageJ2000 = OpenJPEG.EncodeFromImage(resize, true);
}
catch (Exception)
{
m_log.Error("[LOADIMAGEURLMODULE]: OpenJpeg Encode Failed. Empty byte data returned!");
}
}
else
{
newsize = new Size(1024, 1024);
m_log.WarnFormat("[LOADIMAGEURLMODULE] No data returned");
}
Bitmap resize = new Bitmap(image, newsize);
byte[] imageJ2000 = new byte[0];
try
{
imageJ2000 = OpenJPEG.EncodeFromImage(resize, true);
}
catch (Exception)
{
m_log.Error("[LOADIMAGEURLMODULE]: OpenJpeg Encode Failed. Empty byte data returned!");
}
m_textureManager.ReturnData(state.RequestID, imageJ2000);
return;
}
}
catch (WebException)
{
}
finally
{
if(stream != null)
{
stream.Close();
}
}
m_log.DebugFormat("[LOADIMAGEURLMODULE] Returning {0} bytes of image data for request {1}",
imageJ2000.Length, state.RequestID);
m_textureManager.ReturnData(state.RequestID, imageJ2000);
}
#region Nested type: RequestState