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Added support for keyboard scrolling

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This commit is contained in:
unknown
2010-05-29 00:50:12 +02:00
committed by Chris Forbes
parent b45c74fa0b
commit f2bcf1afae
2 changed files with 370 additions and 321 deletions
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553
OpenRA.Gl/GraphicsDevice.cs
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@@ -1,56 +1,56 @@
#region Copyright & License Information
/*
* Copyright 2007,2009,2010 Chris Forbes, Robert Pepperell, Matthew Bowra-Dean, Paul Chote, Alli Witheford.
* This file is part of OpenRA.
*
* OpenRA is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* OpenRA is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with OpenRA. If not, see <http://www.gnu.org/licenses/>.
*/
#endregion
using System;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Runtime.InteropServices;
using System.Windows.Forms;
using OpenRA.FileFormats.Graphics;
using Tao.Cg;
using Tao.OpenGl;
using Tao.Sdl;
#region Copyright & License Information
/*
* Copyright 2007,2009,2010 Chris Forbes, Robert Pepperell, Matthew Bowra-Dean, Paul Chote, Alli Witheford.
* This file is part of OpenRA.
*
* OpenRA is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* OpenRA is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with OpenRA. If not, see <http://www.gnu.org/licenses/>.
*/
#endregion
using System;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Runtime.InteropServices;
using System.Windows.Forms;
using OpenRA.FileFormats.Graphics;
using Tao.Cg;
using Tao.OpenGl;
using Tao.Sdl;
[assembly: Renderer( typeof( OpenRA.GlRenderer.GraphicsDevice ))]
namespace OpenRA.GlRenderer
{
public class GraphicsDevice : IGraphicsDevice
{
public class GraphicsDevice : IGraphicsDevice
{
Size windowSize;
internal IntPtr cgContext;
internal int vertexProfile, fragmentProfile;
internal IntPtr cgContext;
internal int vertexProfile, fragmentProfile;
IntPtr surf;
public Size WindowSize { get { return windowSize; } }
internal static void CheckGlError()
{
internal static void CheckGlError()
{
var n = Gl.glGetError();
if (n != Gl.GL_NO_ERROR)
throw new InvalidOperationException("GL Error");
}
throw new InvalidOperationException("GL Error");
}
public GraphicsDevice( int width, int height, bool windowed, bool vsync )
public GraphicsDevice(int width, int height, bool windowed, bool vsync)
{
Sdl.SDL_Init(Sdl.SDL_INIT_NOPARACHUTE | Sdl.SDL_INIT_VIDEO);
Sdl.SDL_GL_SetAttribute(Sdl.SDL_GL_DOUBLEBUFFER, 1);
@@ -73,65 +73,65 @@ namespace OpenRA.GlRenderer
Sdl.SDL_WM_SetCaption("OpenRA", "OpenRA");
Sdl.SDL_ShowCursor(0);
Sdl.SDL_EnableUNICODE( 1 );
Sdl.SDL_EnableUNICODE(1);
Sdl.SDL_EnableKeyRepeat(Sdl.SDL_DEFAULT_REPEAT_INTERVAL, Sdl.SDL_DEFAULT_REPEAT_DELAY);
CheckGlError();
windowSize = new Size( width, height );
windowSize = new Size(width, height);
cgContext = Cg.cgCreateContext();
Cg.cgSetErrorCallback( CgErrorCallback );
Cg.cgSetErrorCallback(CgErrorCallback);
CgGl.cgGLRegisterStates( cgContext );
CgGl.cgGLSetManageTextureParameters( cgContext, true );
vertexProfile = CgGl.cgGLGetLatestProfile( CgGl.CG_GL_VERTEX );
fragmentProfile = CgGl.cgGLGetLatestProfile( CgGl.CG_GL_FRAGMENT );
CgGl.cgGLRegisterStates(cgContext);
CgGl.cgGLSetManageTextureParameters(cgContext, true);
vertexProfile = CgGl.cgGLGetLatestProfile(CgGl.CG_GL_VERTEX);
fragmentProfile = CgGl.cgGLGetLatestProfile(CgGl.CG_GL_FRAGMENT);
Console.WriteLine("VP Profile: " + vertexProfile);
Console.WriteLine("FP Profile: " + fragmentProfile);
Gl.glEnableClientState( Gl.GL_VERTEX_ARRAY );
Gl.glEnableClientState(Gl.GL_VERTEX_ARRAY);
CheckGlError();
Gl.glEnableClientState( Gl.GL_TEXTURE_COORD_ARRAY );
Gl.glEnableClientState(Gl.GL_TEXTURE_COORD_ARRAY);
CheckGlError();
}
static Cg.CGerrorCallbackFuncDelegate CgErrorCallback = () =>
{
var err = Cg.cgGetError();
var str = Cg.cgGetErrorString( err );
var str = Cg.cgGetErrorString(err);
throw new InvalidOperationException(
string.Format( "CG Error: {0}: {1}", err, str ) );
string.Format("CG Error: {0}: {1}", err, str));
};
public void EnableScissor(int left, int top, int width, int height)
{
if( width < 0 ) width = 0;
if( height < 0 ) height = 0;
Gl.glScissor( left, windowSize.Height - ( top + height ), width, height );
CheckGlError();
Gl.glEnable(Gl.GL_SCISSOR_TEST);
CheckGlError();
}
public void EnableScissor(int left, int top, int width, int height)
{
if (width < 0) width = 0;
if (height < 0) height = 0;
Gl.glScissor(left, windowSize.Height - (top + height), width, height);
CheckGlError();
Gl.glEnable(Gl.GL_SCISSOR_TEST);
CheckGlError();
}
public void DisableScissor()
{
Gl.glDisable(Gl.GL_SCISSOR_TEST);
CheckGlError();
}
public void DisableScissor()
{
Gl.glDisable(Gl.GL_SCISSOR_TEST);
CheckGlError();
}
public void Begin() { }
public void End() { }
public void Begin() { }
public void End() { }
public void Clear(Color c)
{
Gl.glClearColor(0, 0, 0, 0);
CheckGlError();
Gl.glClear(Gl.GL_COLOR_BUFFER_BIT);
CheckGlError();
}
public void Clear(Color c)
{
Gl.glClearColor(0, 0, 0, 0);
CheckGlError();
Gl.glClear(Gl.GL_COLOR_BUFFER_BIT);
CheckGlError();
}
MouseButtons lastButtonBits = (MouseButtons)0;
@@ -150,8 +150,8 @@ namespace OpenRA.GlRenderer
| ((raw & Sdl.KMOD_SHIFT) != 0 ? Modifiers.Shift : 0);
}
public void Present()
{
public void Present()
{
Sdl.SDL_GL_SwapBuffers();
var mods = MakeModifiers(Sdl.SDL_GetModState());
@@ -195,279 +195,294 @@ namespace OpenRA.GlRenderer
case Sdl.SDL_KEYDOWN:
{
if( e.key.keysym.unicode != 0 )
Game.HandleKeyPress( new KeyPressEventArgs( (char)e.key.keysym.unicode ), mods );
else if( mods != 0 )
switch (e.key.keysym.sym)
{
var keyName = Sdl.SDL_GetKeyName( e.key.keysym.sym );
if( keyName.Length == 1 )
Game.HandleKeyPress( new KeyPressEventArgs( keyName[ 0 ] ), mods );
else if( keyName == "f4" && ( ( mods & Modifiers.Alt ) != 0 ) )
case Sdl.SDLK_UP: Game.HandleArrowKeyScroll("up", true); break;
case Sdl.SDLK_LEFT: Game.HandleArrowKeyScroll("left", true); break;
case Sdl.SDLK_DOWN: Game.HandleArrowKeyScroll("down", true); break;
case Sdl.SDLK_RIGHT: Game.HandleArrowKeyScroll("right", true); break;
}
if (e.key.keysym.unicode != 0)
Game.HandleKeyPress(new KeyPressEventArgs((char)e.key.keysym.unicode), mods);
else if (mods != 0)
{
var keyName = Sdl.SDL_GetKeyName(e.key.keysym.sym);
if (keyName.Length == 1)
Game.HandleKeyPress(new KeyPressEventArgs(keyName[0]), mods);
else if (keyName == "f4" && ((mods & Modifiers.Alt) != 0))
OpenRA.Game.Exit();
}
} break;
case Sdl.SDL_KEYUP:
{
switch (e.key.keysym.sym)
{
case Sdl.SDLK_UP: Game.HandleArrowKeyScroll("up", false); break;
case Sdl.SDLK_LEFT: Game.HandleArrowKeyScroll("left", false); break;
case Sdl.SDLK_DOWN: Game.HandleArrowKeyScroll("down", false); break;
case Sdl.SDLK_RIGHT: Game.HandleArrowKeyScroll("right", false); break;
}
} break;
}
}
CheckGlError();
}
}
public void DrawIndexedPrimitives( PrimitiveType pt, Range<int> vertices, Range<int> indices )
public void DrawIndexedPrimitives(PrimitiveType pt, Range<int> vertices, Range<int> indices)
{
Gl.glDrawElements( ModeFromPrimitiveType( pt ), indices.End - indices.Start, Gl.GL_UNSIGNED_SHORT, new IntPtr( indices.Start * 2 ) );
Gl.glDrawElements(ModeFromPrimitiveType(pt), indices.End - indices.Start, Gl.GL_UNSIGNED_SHORT, new IntPtr(indices.Start * 2));
CheckGlError();
}
public void DrawIndexedPrimitives( PrimitiveType pt, int numVerts, int numPrimitives )
public void DrawIndexedPrimitives(PrimitiveType pt, int numVerts, int numPrimitives)
{
Gl.glDrawElements( ModeFromPrimitiveType( pt ), numPrimitives * IndicesPerPrimitive( pt ), Gl.GL_UNSIGNED_SHORT, IntPtr.Zero );
Gl.glDrawElements(ModeFromPrimitiveType(pt), numPrimitives * IndicesPerPrimitive(pt), Gl.GL_UNSIGNED_SHORT, IntPtr.Zero);
CheckGlError();
}
static int ModeFromPrimitiveType( PrimitiveType pt )
static int ModeFromPrimitiveType(PrimitiveType pt)
{
switch( pt )
switch (pt)
{
case PrimitiveType.PointList: return Gl.GL_POINTS;
case PrimitiveType.LineList: return Gl.GL_LINES;
case PrimitiveType.TriangleList: return Gl.GL_TRIANGLES;
case PrimitiveType.PointList: return Gl.GL_POINTS;
case PrimitiveType.LineList: return Gl.GL_LINES;
case PrimitiveType.TriangleList: return Gl.GL_TRIANGLES;
}
throw new NotImplementedException();
}
static int IndicesPerPrimitive( PrimitiveType pt )
static int IndicesPerPrimitive(PrimitiveType pt)
{
switch( pt )
switch (pt)
{
case PrimitiveType.PointList: return 1;
case PrimitiveType.LineList: return 2;
case PrimitiveType.TriangleList: return 3;
case PrimitiveType.PointList: return 1;
case PrimitiveType.LineList: return 2;
case PrimitiveType.TriangleList: return 3;
}
throw new NotImplementedException();
}
#region IGraphicsDevice Members
public IVertexBuffer<Vertex> CreateVertexBuffer( int size )
public IVertexBuffer<Vertex> CreateVertexBuffer(int size)
{
return new VertexBuffer<Vertex>( this, size );
return new VertexBuffer<Vertex>(this, size);
}
public IIndexBuffer CreateIndexBuffer( int size )
public IIndexBuffer CreateIndexBuffer(int size)
{
return new IndexBuffer( this, size );
return new IndexBuffer(this, size);
}
public ITexture CreateTexture( Bitmap bitmap )
public ITexture CreateTexture(Bitmap bitmap)
{
return new Texture( this, bitmap );
return new Texture(this, bitmap);
}
public IShader CreateShader( Stream stream )
public IShader CreateShader(Stream stream)
{
return new Shader( this, stream );
return new Shader(this, stream);
}
#endregion
}
public class VertexBuffer<T> : IVertexBuffer<T>, IDisposable
public class VertexBuffer<T> : IVertexBuffer<T>, IDisposable
where T : struct
{
int buffer;
{
int buffer;
public VertexBuffer(GraphicsDevice dev, int size)
{
Gl.glGenBuffers(1, out buffer);
GraphicsDevice.CheckGlError();
}
public VertexBuffer(GraphicsDevice dev, int size)
{
Gl.glGenBuffers(1, out buffer);
GraphicsDevice.CheckGlError();
}
public void SetData(T[] data)
{
Bind();
Gl.glBufferData(Gl.GL_ARRAY_BUFFER,
new IntPtr(Marshal.SizeOf(typeof(T))*data.Length), data, Gl.GL_DYNAMIC_DRAW);
GraphicsDevice.CheckGlError();
}
public void SetData(T[] data)
{
Bind();
Gl.glBufferData(Gl.GL_ARRAY_BUFFER,
new IntPtr(Marshal.SizeOf(typeof(T)) * data.Length), data, Gl.GL_DYNAMIC_DRAW);
GraphicsDevice.CheckGlError();
}
public void Bind()
{
Gl.glBindBuffer(Gl.GL_ARRAY_BUFFER, buffer);
GraphicsDevice.CheckGlError();
Gl.glVertexPointer(3, Gl.GL_FLOAT, Marshal.SizeOf(typeof(T)), IntPtr.Zero);
GraphicsDevice.CheckGlError();
Gl.glTexCoordPointer(4, Gl.GL_FLOAT, Marshal.SizeOf(typeof(T)), new IntPtr(12));
GraphicsDevice.CheckGlError();
}
bool disposed;
public void Dispose()
{
if (disposed) return;
GC.SuppressFinalize(this);
Gl.glDeleteBuffers(1, ref buffer);
GraphicsDevice.CheckGlError();
disposed = true;
}
public void Bind()
{
Gl.glBindBuffer(Gl.GL_ARRAY_BUFFER, buffer);
GraphicsDevice.CheckGlError();
Gl.glVertexPointer(3, Gl.GL_FLOAT, Marshal.SizeOf(typeof(T)), IntPtr.Zero);
GraphicsDevice.CheckGlError();
Gl.glTexCoordPointer(4, Gl.GL_FLOAT, Marshal.SizeOf(typeof(T)), new IntPtr(12));
GraphicsDevice.CheckGlError();
}
//~VertexBuffer() { Dispose(); }
}
bool disposed;
public void Dispose()
{
if (disposed) return;
GC.SuppressFinalize(this);
Gl.glDeleteBuffers(1, ref buffer);
GraphicsDevice.CheckGlError();
disposed = true;
}
public class IndexBuffer : IIndexBuffer, IDisposable
{
int buffer;
//~VertexBuffer() { Dispose(); }
}
public IndexBuffer(GraphicsDevice dev, int size)
{
Gl.glGenBuffers(1, out buffer);
GraphicsDevice.CheckGlError();
}
public class IndexBuffer : IIndexBuffer, IDisposable
{
int buffer;
public void SetData(ushort[] data)
{
Bind();
Gl.glBufferData(Gl.GL_ELEMENT_ARRAY_BUFFER,
new IntPtr(2 * data.Length), data, Gl.GL_DYNAMIC_DRAW);
GraphicsDevice.CheckGlError();
}
public IndexBuffer(GraphicsDevice dev, int size)
{
Gl.glGenBuffers(1, out buffer);
GraphicsDevice.CheckGlError();
}
public void Bind()
{
Gl.glBindBuffer(Gl.GL_ELEMENT_ARRAY_BUFFER, buffer);
GraphicsDevice.CheckGlError();
}
public void SetData(ushort[] data)
{
Bind();
Gl.glBufferData(Gl.GL_ELEMENT_ARRAY_BUFFER,
new IntPtr(2 * data.Length), data, Gl.GL_DYNAMIC_DRAW);
GraphicsDevice.CheckGlError();
}
bool disposed;
public void Dispose()
{
if (disposed) return;
GC.SuppressFinalize(this);
Gl.glDeleteBuffers(1, ref buffer);
GraphicsDevice.CheckGlError();
disposed = true;
}
public void Bind()
{
Gl.glBindBuffer(Gl.GL_ELEMENT_ARRAY_BUFFER, buffer);
GraphicsDevice.CheckGlError();
}
//~IndexBuffer() { Dispose(); }
}
bool disposed;
public void Dispose()
{
if (disposed) return;
GC.SuppressFinalize(this);
Gl.glDeleteBuffers(1, ref buffer);
GraphicsDevice.CheckGlError();
disposed = true;
}
public class Shader : IShader
{
IntPtr effect;
IntPtr technique;
GraphicsDevice dev;
//~IndexBuffer() { Dispose(); }
}
public Shader(GraphicsDevice dev, Stream s)
{
this.dev = dev;
public class Shader : IShader
{
IntPtr effect;
IntPtr technique;
GraphicsDevice dev;
public Shader(GraphicsDevice dev, Stream s)
{
this.dev = dev;
string code;
using (var file = new StreamReader(s))
code = file.ReadToEnd();
effect = Cg.cgCreateEffect(dev.cgContext, code, null);
effect = Cg.cgCreateEffect(dev.cgContext, code, null);
if (effect == IntPtr.Zero)
{
var err = Cg.cgGetErrorString(Cg.cgGetError());
var results = Cg.cgGetLastListing(dev.cgContext);
throw new InvalidOperationException(
string.Format("Cg compile failed ({0}):\n{1}", err, results));
}
technique = Cg.cgGetFirstTechnique( effect );
if( technique == IntPtr.Zero )
throw new InvalidOperationException("No techniques");
while( Cg.cgValidateTechnique( technique ) == 0 )
if (effect == IntPtr.Zero)
{
technique = Cg.cgGetNextTechnique( technique );
if( technique == IntPtr.Zero )
throw new InvalidOperationException("No valid techniques");
var err = Cg.cgGetErrorString(Cg.cgGetError());
var results = Cg.cgGetLastListing(dev.cgContext);
throw new InvalidOperationException(
string.Format("Cg compile failed ({0}):\n{1}", err, results));
}
technique = Cg.cgGetFirstTechnique(effect);
if (technique == IntPtr.Zero)
throw new InvalidOperationException("No techniques");
while (Cg.cgValidateTechnique(technique) == 0)
{
technique = Cg.cgGetNextTechnique(technique);
if (technique == IntPtr.Zero)
throw new InvalidOperationException("No valid techniques");
}
}
public void Render(Action a)
{
CgGl.cgGLEnableProfile(dev.vertexProfile);
CgGl.cgGLEnableProfile(dev.fragmentProfile);
public void Render(Action a)
{
CgGl.cgGLEnableProfile(dev.vertexProfile);
CgGl.cgGLEnableProfile(dev.fragmentProfile);
var pass = Cg.cgGetFirstPass(technique);
while (pass != IntPtr.Zero)
{
Cg.cgSetPassState(pass);
a();
Cg.cgResetPassState(pass);
pass = Cg.cgGetNextPass(pass);
}
CgGl.cgGLDisableProfile(dev.fragmentProfile);
CgGl.cgGLDisableProfile(dev.vertexProfile);
}
public void SetValue(string name, ITexture t)
{
var texture = (Texture)t;
var param = Cg.cgGetNamedEffectParameter( effect, name );
if( param != IntPtr.Zero && texture != null )
CgGl.cgGLSetupSampler( param, texture.texture );
}
public void SetValue(string name, float x, float y)
{
var param = Cg.cgGetNamedEffectParameter(effect, name);
if( param != IntPtr.Zero )
CgGl.cgGLSetParameter2f(param, x, y);
}
public void Commit() { }
}
public class Texture : ITexture
{
internal int texture;
public Texture(GraphicsDevice dev, Bitmap bitmap)
{
Gl.glGenTextures(1, out texture);
GraphicsDevice.CheckGlError();
SetData(bitmap);
}
public void SetData(Bitmap bitmap)
{
if( !IsPowerOf2( bitmap.Width ) || !IsPowerOf2( bitmap.Height ) )
var pass = Cg.cgGetFirstPass(technique);
while (pass != IntPtr.Zero)
{
//throw new InvalidOperationException( "non-power-of-2-texture" );
bitmap = new Bitmap( bitmap, new Size( NextPowerOf2( bitmap.Width ), NextPowerOf2( bitmap.Height ) ) );
Cg.cgSetPassState(pass);
a();
Cg.cgResetPassState(pass);
pass = Cg.cgGetNextPass(pass);
}
Gl.glBindTexture( Gl.GL_TEXTURE_2D, texture );
CgGl.cgGLDisableProfile(dev.fragmentProfile);
CgGl.cgGLDisableProfile(dev.vertexProfile);
}
public void SetValue(string name, ITexture t)
{
var texture = (Texture)t;
var param = Cg.cgGetNamedEffectParameter(effect, name);
if (param != IntPtr.Zero && texture != null)
CgGl.cgGLSetupSampler(param, texture.texture);
}
public void SetValue(string name, float x, float y)
{
var param = Cg.cgGetNamedEffectParameter(effect, name);
if (param != IntPtr.Zero)
CgGl.cgGLSetParameter2f(param, x, y);
}
public void Commit() { }
}
public class Texture : ITexture
{
internal int texture;
public Texture(GraphicsDevice dev, Bitmap bitmap)
{
Gl.glGenTextures(1, out texture);
GraphicsDevice.CheckGlError();
SetData(bitmap);
}
public void SetData(Bitmap bitmap)
{
if (!IsPowerOf2(bitmap.Width) || !IsPowerOf2(bitmap.Height))
{
//throw new InvalidOperationException( "non-power-of-2-texture" );
bitmap = new Bitmap(bitmap, new Size(NextPowerOf2(bitmap.Width), NextPowerOf2(bitmap.Height)));
}
Gl.glBindTexture(Gl.GL_TEXTURE_2D, texture);
GraphicsDevice.CheckGlError();
var bits = bitmap.LockBits(
new Rectangle(0, 0, bitmap.Width, bitmap.Height),
ImageLockMode.ReadOnly,
PixelFormat.Format32bppArgb);
new Rectangle(0, 0, bitmap.Width, bitmap.Height),
ImageLockMode.ReadOnly,
PixelFormat.Format32bppArgb);
Gl.glTexParameteri(Gl.GL_TEXTURE_2D, Gl.GL_TEXTURE_BASE_LEVEL, 0);
GraphicsDevice.CheckGlError();
Gl.glTexParameteri(Gl.GL_TEXTURE_2D, Gl.GL_TEXTURE_MAX_LEVEL, 0);
GraphicsDevice.CheckGlError();
Gl.glTexImage2D(Gl.GL_TEXTURE_2D, 0, Gl.GL_RGBA8, bits.Width, bits.Height,
0, Gl.GL_BGRA, Gl.GL_UNSIGNED_BYTE, bits.Scan0); // todo: weird strides
GraphicsDevice.CheckGlError();
Gl.glTexParameteri(Gl.GL_TEXTURE_2D, Gl.GL_TEXTURE_BASE_LEVEL, 0);
GraphicsDevice.CheckGlError();
Gl.glTexParameteri(Gl.GL_TEXTURE_2D, Gl.GL_TEXTURE_MAX_LEVEL, 0);
GraphicsDevice.CheckGlError();
Gl.glTexImage2D(Gl.GL_TEXTURE_2D, 0, Gl.GL_RGBA8, bits.Width, bits.Height,
0, Gl.GL_BGRA, Gl.GL_UNSIGNED_BYTE, bits.Scan0); // todo: weird strides
GraphicsDevice.CheckGlError();
bitmap.UnlockBits(bits);
}
bool IsPowerOf2( int v )
{
return ( v & ( v - 1 ) ) == 0;
bitmap.UnlockBits(bits);
}
int NextPowerOf2( int v )
bool IsPowerOf2(int v)
{
return (v & (v - 1)) == 0;
}
int NextPowerOf2(int v)
{
--v;
v |= v >> 1;
@@ -477,5 +492,5 @@ namespace OpenRA.GlRenderer
++v;
return v;
}
}
}
}
}