* Client.Self.Position now does acceleration/velocity interpolation

* Added LLVector3 * float operator
* Adding Oven.cs to Baker (will be moved in to libsecondlife later) that does the first baby steps of baking
* Added the missing Helpers.GetResourceStream() function
* Changed readonly Settings values to const


git-svn-id: http://libopenmetaverse.googlecode.com/svn/trunk@1110 52acb1d6-8a22-11de-b505-999d5b087335

libsecondlife/examples/Baker/Baker.csproj

@@ -41,6 +41,7 @@
       <DependentUpon>frmBaker.cs</DependentUpon>
       <SubType>Designer</SubType>
     </EmbeddedResource>
+    <Compile Include="Oven.cs" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Baker.cs" />
@@ -67,4 +68,4 @@
       <Name>libsecondlife</Name>
     </ProjectReference>
   </ItemGroup>
-</Project>
+</Project>

libsecondlife/examples/Baker/Oven.cs

@@ -0,0 +1,69 @@
+using System;
+using System.Drawing;
+using System.Drawing.Imaging;
+using System.Runtime.InteropServices;
+
+namespace Baker
+{
+	public static class Oven
+	{
+		public static Bitmap ModifyAlphaMask(Bitmap alpha, byte weight, float ramp)
+		{
+			// Create the new modifiable image (our canvas)
+			int width = alpha.Width;
+			int height = alpha.Height;
+			int pixelFormatSize = Image.GetPixelFormatSize(alpha.PixelFormat) / 8;
+			int stride = width * pixelFormatSize;
+			byte[] data = new byte[stride * height];
+			GCHandle handle = GCHandle.Alloc(data, GCHandleType.Pinned);
+			IntPtr pointer = Marshal.UnsafeAddrOfPinnedArrayElement(data, 0);
+			Bitmap modified = new Bitmap(width, height, stride, alpha.PixelFormat, pointer);
+			
+			// Copy the existing alpha mask to the canvas
+			Graphics g = Graphics.FromImage(modified);
+			g.DrawImageUnscaledAndClipped(alpha, new Rectangle(0, 0, width, height));
+			g.Dispose();
+			
+			// Modify the canvas based on the input weight and ramp values
+			// TODO: use the ramp
+			// TODO: only bother with the alpha values
+			for (int i = 0; i < data.Length; i++)
+			{
+				if (data[i] < weight) data[i] = 0;
+			}
+			
+			return modified;
+		}
+		
+		public static Bitmap ApplyAlphaMask(Bitmap source, Bitmap alpha)
+		{
+			// Create the new modifiable image (our canvas)
+			int width = source.Width;
+			int height = source.Height;
+			
+			if (alpha.Width != width || alpha.Height != height ||
+			    alpha.PixelFormat != source.PixelFormat)
+			{
+				throw new Exception("Source image and alpha mask formats do not match");
+			}
+			
+			int pixelFormatSize = Image.GetPixelFormatSize(source.PixelFormat) / 8;
+			int stride = width * pixelFormatSize;
+			byte[] data = new byte[stride * height];
+			GCHandle handle = GCHandle.Alloc(data, GCHandleType.Pinned);
+			IntPtr pointer = Marshal.UnsafeAddrOfPinnedArrayElement(data, 0);
+			Bitmap modified = new Bitmap(width, height, stride, source.PixelFormat, pointer);
+			
+			// Copy the source image to the canvas
+			Graphics g = Graphics.FromImage(modified);
+			g.DrawImageUnscaledAndClipped(source, new Rectangle(0, 0, width, height));
+			g.Dispose();
+			
+			// Get access to the pixel data for the alpha mask (probably using lockbits)
+			
+			// Combine the alpha mask alpha bytes in to the canvas
+			
+			return modified;
+		}
+	}
+}

libsecondlife/examples/Baker/frmBaker.Designer.cs

@@ -47,6 +47,7 @@ namespace Baker
             this.pic1.Size = new System.Drawing.Size(256, 256);
             this.pic1.TabIndex = 0;
             this.pic1.TabStop = false;
+            this.pic1.AutoSize = true;
             // 
             // cmdLoadPic1
             // 
@@ -66,6 +67,7 @@ namespace Baker
             this.pic2.Size = new System.Drawing.Size(256, 256);
             this.pic2.TabIndex = 2;
             this.pic2.TabStop = false;
+            this.pic1.AutoSize = true;
             // 
             // pic3
             // 
@@ -75,6 +77,7 @@ namespace Baker
             this.pic3.Size = new System.Drawing.Size(256, 256);
             this.pic3.TabIndex = 3;
             this.pic3.TabStop = false;
+            this.pic1.AutoSize = true;
             // 
             // cmdLoadPic2
             // 
@@ -130,3 +133,4 @@ namespace Baker
     }
 }
 
+

libsecondlife/examples/Baker/frmBaker.cs

@@ -23,7 +23,8 @@ namespace Baker
         	
         	if (stream != null)
         	{
-        		pic1.Image = OpenJPEGNet.LoadTGAClass.LoadTGA(stream);
+        		Bitmap alphaMask = OpenJPEGNet.LoadTGAClass.LoadTGA(stream);
+        		pic1.Image = Oven.ModifyAlphaMask(alphaMask, 245, 0.0f);
         	}
         	else
         	{