From e4553db36e61592d6277ff76b2926c936a9d8a37 Mon Sep 17 00:00:00 2001
From: Effix <effix@hotmail.com>
Date: Thu, 19 Nov 2015 08:24:11 -0800
Subject: [PATCH] Adding ability to flip over the image

---
 LedBadge/MainViewModel.cs             |  4 +--
 LedBadge/MainWindow.xaml              | 29 ++++++++++++-------
 LedBadgeUtilLib/Image/BadgeImage.cs   | 41 +++++++++++++++++++++------
 LedBadgeUtilLib/Image/RenderTarget.cs |  2 +-
 LedBadgeUtilLib/Image/WPF.cs          |  8 +++---
 5 files changed, 57 insertions(+), 27 deletions(-)

diff --git a/LedBadge/MainViewModel.cs b/LedBadge/MainViewModel.cs
index 53fab9b..6f267ad 100644
--- a/LedBadge/MainViewModel.cs
+++ b/LedBadge/MainViewModel.cs
@@ -158,7 +158,7 @@ void OnFrameReady(object sender, LedBadgeLib.BadgeFrameEventArgs args)
             {
                 Dispatcher.InvokeAsync(() =>
                 {
-                    LedBadgeLib.WPF.ImageFromPackedBuffer(FrameBuffer, args.Frame.PackedBuffer, 0, args.Frame.Width, args.Frame.Height);
+                    LedBadgeLib.WPF.ImageFromPackedBuffer(FrameBuffer, args.Frame.PackedBuffer, 0, RotateFrame, args.Frame.Width, args.Frame.Height);
 
                     if(fpsUpdate)
                     {
@@ -270,7 +270,7 @@ void LogMessage(LedBadgeLib.ResponseCodes code, byte[] response)
                     int offset = LedBadgeLib.BadgeResponses.DecodePixRect(response, 0, out width, out height, out length);
                     var img = new System.Windows.Controls.Image()
                     {
-                        Source = LedBadgeLib.WPF.ImageFromPackedBuffer(response, offset, width, height),
+                        Source = LedBadgeLib.WPF.ImageFromPackedBuffer(response, offset, RotateFrame, width, height),
                         Width = width * scale,
                         Height = height * scale,
                         SnapsToDevicePixels = true,
diff --git a/LedBadge/MainWindow.xaml b/LedBadge/MainWindow.xaml
index c276d72..4be3599 100644
--- a/LedBadge/MainWindow.xaml
+++ b/LedBadge/MainWindow.xaml
@@ -47,7 +47,7 @@
                         <StackPanel DockPanel.Dock="Left" Width="150">
                             <GroupBox Header="Connection">
                                 <StackPanel>
-                                    <ComboBox Name="ComPortDropDown" ItemsSource="{Binding ComPorts}" SelectedValue="{Binding SelectedComPort}" DropDownOpened="ComPortsDropDownOpened"/>
+                                    <ComboBox ToolTip="Choose the serial communication port that the badge is connected to." Name="ComPortDropDown" ItemsSource="{Binding ComPorts}" SelectedValue="{Binding SelectedComPort}" DropDownOpened="ComPortsDropDownOpened"/>
                                     <Button Content="Connect" Click="ToggleConnection">
                                         <Button.Style>
                                             <Style TargetType="{x:Type Button}">
@@ -66,13 +66,13 @@
                             </GroupBox>
                             <GroupBox Header="Output">
                                 <StackPanel>
-                                    <DockPanel Margin="0,-1,0,0">
+                                    <DockPanel Margin="0,-1,0,0" ToolTip="Are the LEDs blinding you? Turn down the brightness a little.">
                                         <TextBlock DockPanel.Dock="Left" Text="Brightness" Margin="0,0,5,0"/>
                                         <Slider Minimum="0" Maximum="255" Value="{Binding Brightness}"/>
                                     </DockPanel>
-                                    <CheckBox Margin="0,-1,0,0" Content="Dither Frame" IsChecked="{Binding DitherFrame}"/>
-                                    <CheckBox Margin="0,-1,0,0" Content="Dither Images" IsChecked="{Binding DitherImages}"/>
-                                    <CheckBox Margin="0,-1,0,-1" Content="Rotate Frame" IsChecked="{Binding RotateFrame}"/>
+                                    <CheckBox Margin="0,-1,0,0" ToolTip="Dithers the frame buffer before packing. The dots will crawl as the frame changes." Content="Dither Frame" IsChecked="{Binding DitherFrame}"/>
+                                    <CheckBox Margin="0,-1,0,0" ToolTip="Dithers images before copying to the frame buffer. Done once at image load and stable as they scroll." Content="Dither Images" IsChecked="{Binding DitherImages}"/>
+                                    <CheckBox Margin="0,-1,0,-1" ToolTip="Rotate image 180° if it is easier to have the cable com out of the other side when mounting." Content="Rotate Frame" IsChecked="{Binding RotateFrame}"/>
                                 </StackPanel>
                             </GroupBox>
                         </StackPanel>
@@ -92,7 +92,7 @@
                             </GroupBox>
                         </StackPanel>
                         <DockPanel>
-                            <DockPanel Margin="5,5,5,0" DockPanel.Dock="Top">
+                            <DockPanel ToolTip="Pick one of the sample sources or diagnostic modes to display." Margin="5,5,5,0" DockPanel.Dock="Top">
                                 <TextBlock DockPanel.Dock="Left" Text="Display" VerticalAlignment="Center" Margin="0,0,5,0"/>
                                 <ComboBox ItemsSource="{Binding Source={l:Enumeration {x:Type l:DisplayMode}}}" SelectedValue="{Binding DisplayMode}"/>
                             </DockPanel>
@@ -111,13 +111,14 @@
                     <DockPanel>
                         <DockPanel DockPanel.Dock="Bottom">
                             <Button Width="64" Content="Send" DockPanel.Dock="Right" Click="SendText"/>
+                            <TextBlock DockPanel.Dock="Right" Text="Add one message per line above "/>
                             <StackPanel Orientation="Horizontal" DockPanel.Dock="Left">
-                                <RadioButton GroupName="Layout" Name="SingleLineLayout" Style="{StaticResource RadioButtonButton}">
+                                <RadioButton ToolTip="Single line layout" GroupName="Layout" Name="SingleLineLayout" Style="{StaticResource RadioButtonButton}">
                                     <RadioButton.Content>
                                         <Rectangle Width="40" Height="16" Stroke="Black" StrokeThickness="1" Fill="Transparent"/>
                                     </RadioButton.Content>
                                 </RadioButton>
-                                <RadioButton GroupName="Layout" Name="DoubleLineLayout" Style="{StaticResource RadioButtonButton}">
+                                <RadioButton ToolTip="Double line layout" GroupName="Layout" Name="DoubleLineLayout" Style="{StaticResource RadioButtonButton}">
                                     <RadioButton.Content>
                                         <Grid Background="Transparent">
                                             <Grid.RowDefinitions>
@@ -129,7 +130,7 @@
                                         </Grid>
                                     </RadioButton.Content>
                                 </RadioButton>
-                                <RadioButton GroupName="Layout" Name="SplitLayout" Style="{StaticResource RadioButtonButton}">
+                                <RadioButton ToolTip="Split layout" GroupName="Layout" Name="SplitLayout" Style="{StaticResource RadioButtonButton}">
                                     <RadioButton.Content>
                                         <Grid Background="Transparent">
                                             <Grid.ColumnDefinitions>
@@ -153,7 +154,10 @@
                 </TabItem>
                 <TabItem Header="Image">
                     <DockPanel>
-                        <Button Width="64" Content="Send" DockPanel.Dock="Bottom" HorizontalAlignment="Right" Click="SendImage"/>
+                        <DockPanel DockPanel.Dock="Bottom">
+                            <Button Width="64" Content="Send" DockPanel.Dock="Right" Click="SendImage"/>
+                            <TextBlock HorizontalAlignment="Right" Text="Add one image path per line above "/>
+                        </DockPanel>
                         <TextBox Name="ImageInput" AcceptsReturn="True" Margin="0,0,0,5"/>
                     </DockPanel>
                 </TabItem>
@@ -180,7 +184,10 @@
                             <TextBlock Grid.Column="0" Grid.Row="3" Text="Access Token Secret"/>
                             <TextBox Grid.Column="2" Grid.Row="3" Text="{Binding TwitterProvider.AccessTokenSecret}"/>
                         </Grid>
-                        <Button Name="TwitterButton" Width="64" Content="Start" DockPanel.Dock="Bottom" HorizontalAlignment="Right" Click="ToggleTwitter"/>
+                        <DockPanel DockPanel.Dock="Bottom">
+                            <Button Name="TwitterButton" Width="64" Content="Start" DockPanel.Dock="Right" Click="ToggleTwitter"/>
+                            <TextBox HorizontalAlignment="Right" Text="Add one search term per line above "/>
+                        </DockPanel>
                         <TextBox Name="Hashtags" AcceptsReturn="True" Margin="0,0,0,5"/>
                     </DockPanel>
                 </TabItem>
diff --git a/LedBadgeUtilLib/Image/BadgeImage.cs b/LedBadgeUtilLib/Image/BadgeImage.cs
index 7d1f1d0..87d7d9e 100644
--- a/LedBadgeUtilLib/Image/BadgeImage.cs
+++ b/LedBadgeUtilLib/Image/BadgeImage.cs
@@ -53,16 +53,25 @@ public static byte Pack4GrayPix(byte p0, byte p1, byte p2, byte p3)
             return dst;
         }
 
-        public static void IntermediateImagetoPackedBuffer(byte[] intermediateImage, byte[] packedBuffer, int width, int height, int offset, bool rotate)
+        public static void IntermediateImagetoPackedBuffer(byte[] intermediateImage, byte[] packedBuffer, int offset, bool rotate)
         {
+            int packedI = offset;
             if(rotate)
             {
+                for(int p = intermediateImage.Length - 4; p >= 0; ++packedI, p -= 4)
+                {
+                    packedBuffer[packedI] = BadgeImage.Pack4GrayPix(
+                        intermediateImage[p + 3],
+                        intermediateImage[p + 2],
+                        intermediateImage[p + 1],
+                        intermediateImage[p + 0]);
+                }
             }
             else
             {
-                for(int i = offset, p = 0, n = intermediateImage.Length / 4; i < n; ++i, p += 4)
+                for(int p = 0; p < intermediateImage.Length; ++packedI, p += 4)
                 {
-                    packedBuffer[i] = BadgeImage.Pack4GrayPix(
+                    packedBuffer[packedI] = BadgeImage.Pack4GrayPix(
                         intermediateImage[p + 0],
                         intermediateImage[p + 1],
                         intermediateImage[p + 2],
@@ -71,14 +80,28 @@ public static void IntermediateImagetoPackedBuffer(byte[] intermediateImage, byt
             }
         }
 
-        public static void PackedBufferToIntermediateImage(byte[] packedBuffer, byte[] intermediateImage, int width, int height, int offset)
+        public static void PackedBufferToIntermediateImage(byte[] packedBuffer, byte[] intermediateImage, int offset, bool rotate)
         {
-            for(int i = offset, p = 0, n = intermediateImage.Length / 4; i < n; ++i, p += 4)
+            int packedI = offset;
+            if(rotate)
+            {
+                for(int p = intermediateImage.Length - 4; p >= 0; ++packedI, p -= 4)
+                {
+                    intermediateImage[p + 3] = BadgeImage.PixToSrgbGray((byte)((packedBuffer[packedI] >> 0) & 0x3));
+                    intermediateImage[p + 2] = BadgeImage.PixToSrgbGray((byte)((packedBuffer[packedI] >> 2) & 0x3));
+                    intermediateImage[p + 1] = BadgeImage.PixToSrgbGray((byte)((packedBuffer[packedI] >> 4) & 0x3));
+                    intermediateImage[p + 0] = BadgeImage.PixToSrgbGray((byte)((packedBuffer[packedI] >> 6) & 0x3));
+                }
+            }
+            else
             {
-                intermediateImage[p + 0] = BadgeImage.PixToSrgbGray((byte)((packedBuffer[i] >> 0) & 0x3));
-                intermediateImage[p + 1] = BadgeImage.PixToSrgbGray((byte)((packedBuffer[i] >> 2) & 0x3));
-                intermediateImage[p + 2] = BadgeImage.PixToSrgbGray((byte)((packedBuffer[i] >> 4) & 0x3));
-                intermediateImage[p + 3] = BadgeImage.PixToSrgbGray((byte)((packedBuffer[i] >> 6) & 0x3));
+                for(int p = 0; p < intermediateImage.Length; ++packedI, p += 4)
+                {
+                    intermediateImage[p + 0] = BadgeImage.PixToSrgbGray((byte)((packedBuffer[packedI] >> 0) & 0x3));
+                    intermediateImage[p + 1] = BadgeImage.PixToSrgbGray((byte)((packedBuffer[packedI] >> 2) & 0x3));
+                    intermediateImage[p + 2] = BadgeImage.PixToSrgbGray((byte)((packedBuffer[packedI] >> 4) & 0x3));
+                    intermediateImage[p + 3] = BadgeImage.PixToSrgbGray((byte)((packedBuffer[packedI] >> 6) & 0x3));
+                }
             }
         }
 
diff --git a/LedBadgeUtilLib/Image/RenderTarget.cs b/LedBadgeUtilLib/Image/RenderTarget.cs
index 10e4263..e3f5ea4 100644
--- a/LedBadgeUtilLib/Image/RenderTarget.cs
+++ b/LedBadgeUtilLib/Image/RenderTarget.cs
@@ -27,7 +27,7 @@ public void PackBuffer(bool rotate)
                 System.Diagnostics.Debug.Assert((Width & 0x3) == 0);
                 PackedBuffer = new byte[(Width * BadgeCaps.BitsPerPixel / 8) * Height];
             }
-            BadgeImage.IntermediateImagetoPackedBuffer(IntermediateImage, PackedBuffer, Width, Height, 0, rotate);
+            BadgeImage.IntermediateImagetoPackedBuffer(IntermediateImage, PackedBuffer, 0, rotate);
         }
 
         public int Width { get; private set; }
diff --git a/LedBadgeUtilLib/Image/WPF.cs b/LedBadgeUtilLib/Image/WPF.cs
index 10ec4dc..fd1bc4e 100644
--- a/LedBadgeUtilLib/Image/WPF.cs
+++ b/LedBadgeUtilLib/Image/WPF.cs
@@ -79,17 +79,17 @@ public static void ImageFromIntermediate(WriteableBitmap target, byte[] intermed
             target.WritePixels(new Int32Rect(0, 0, width, height), intermediateImage, width, 0);
         }
 
-        public static BitmapSource ImageFromPackedBuffer(byte[] packedBuffer, int offset, int width, int height)
+        public static BitmapSource ImageFromPackedBuffer(byte[] packedBuffer, int offset, bool rotate, int width, int height)
         {
             var image = new WriteableBitmap(width, height, 96, 96, PixelFormats.Gray8, null);
-            ImageFromPackedBuffer(image, packedBuffer, offset, width, height);
+            ImageFromPackedBuffer(image, packedBuffer, offset, rotate, width, height);
             return image;
         }
 
-        public static void ImageFromPackedBuffer(WriteableBitmap target, byte[] packedBuffer, int offset, int width, int height, byte[] tempIntermediate = null)
+        public static void ImageFromPackedBuffer(WriteableBitmap target, byte[] packedBuffer, int offset, bool rotate, int width, int height, byte[] tempIntermediate = null)
         {
             var intermediateImage = tempIntermediate ?? new byte[width * height];
-            BadgeImage.PackedBufferToIntermediateImage(packedBuffer, intermediateImage, width, height, offset);
+            BadgeImage.PackedBufferToIntermediateImage(packedBuffer, intermediateImage, offset, rotate);
             ImageFromIntermediate(target, intermediateImage, width, height);
         }