220 lines
9.3 KiB
C#
220 lines
9.3 KiB
C#
/*
|
|
* Copyright (c) 2007-2009 SlimDX Group
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using System.Reflection;
|
|
using System.Runtime.InteropServices;
|
|
using System.Security.Permissions;
|
|
using SlimDX;
|
|
using SlimDX.Direct3D9;
|
|
|
|
namespace SampleFramework
|
|
{
|
|
/// <summary>
|
|
/// Manages aspects of the graphics device unique to Direct3D9.
|
|
/// </summary>
|
|
public class Direct3D9Manager
|
|
{
|
|
GraphicsDeviceManager manager;
|
|
|
|
/// <summary>
|
|
/// Gets the graphics device.
|
|
/// </summary>
|
|
/// <value>The graphics device.</value>
|
|
#if TEST_Direct3D9Ex
|
|
public DeviceEx Device //yyagi
|
|
#else
|
|
public DeviceCache Device
|
|
#endif
|
|
{
|
|
get;
|
|
internal set;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Initializes a new instance of the <see cref="Direct3D9Manager"/> class.
|
|
/// </summary>
|
|
/// <param name="manager">The parent manager.</param>
|
|
internal Direct3D9Manager(GraphicsDeviceManager manager)
|
|
{
|
|
this.manager = manager;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Creates a vertex declaration using the specified vertex type.
|
|
/// </summary>
|
|
/// <param name="vertexType">Type of the vertex.</param>
|
|
/// <returns>The vertex declaration for the specified vertex type.</returns>
|
|
[EnvironmentPermission(SecurityAction.LinkDemand)]
|
|
public VertexDeclaration CreateVertexDeclaration(Type vertexType)
|
|
{
|
|
// ensure that we have a value type
|
|
if (!vertexType.IsValueType)
|
|
throw new InvalidOperationException("Vertex types must be value types.");
|
|
|
|
// grab the list of elements in the vertex
|
|
List<VertexElementAttribute> objectAttributes = new List<VertexElementAttribute>();
|
|
FieldInfo[] fields = vertexType.GetFields(BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance);
|
|
foreach (FieldInfo field in fields)
|
|
{
|
|
// check for the custom attribute
|
|
VertexElementAttribute[] attributes = (VertexElementAttribute[])field.GetCustomAttributes(typeof(VertexElementAttribute), false);
|
|
if (field.Name.Contains("<") && field.Name.Contains(">"))
|
|
{
|
|
// look up the property matching this field to see if it has the attribute
|
|
int index1 = field.Name.IndexOf('<');
|
|
int index2 = field.Name.IndexOf('>');
|
|
|
|
// parse out the name
|
|
string propertyName = field.Name.Substring(index1 + 1, index2 - index1 - 1);
|
|
PropertyInfo property = vertexType.GetProperty(propertyName, field.FieldType);
|
|
if (property != null)
|
|
attributes = (VertexElementAttribute[])property.GetCustomAttributes(typeof(VertexElementAttribute), false);
|
|
}
|
|
if (attributes.Length == 1)
|
|
{
|
|
// add the attribute to the list
|
|
attributes[0].Offset = Marshal.OffsetOf(vertexType, field.Name).ToInt32();
|
|
objectAttributes.Add(attributes[0]);
|
|
}
|
|
}
|
|
|
|
// make sure we have at least one element
|
|
if (objectAttributes.Count < 1)
|
|
throw new InvalidOperationException("The vertex type must have at least one field or property marked with the VertexElement attribute.");
|
|
|
|
// loop through the attributes and start building vertex elements
|
|
List<VertexElement> elements = new List<VertexElement>();
|
|
Dictionary<DeclarationUsage, int> usages = new Dictionary<DeclarationUsage, int>();
|
|
foreach (VertexElementAttribute attribute in objectAttributes)
|
|
{
|
|
// check the current usage index
|
|
if (!usages.ContainsKey(attribute.Usage))
|
|
usages.Add(attribute.Usage, 0);
|
|
|
|
// advance the current usage count
|
|
int index = usages[attribute.Usage];
|
|
usages[attribute.Usage]++;
|
|
|
|
// create the element
|
|
elements.Add(new VertexElement((short)attribute.Stream, (short)attribute.Offset, attribute.Type,
|
|
attribute.Method, attribute.Usage, (byte)index));
|
|
}
|
|
|
|
elements.Add(VertexElement.VertexDeclarationEnd);
|
|
return new VertexDeclaration(Device.UnderlyingDevice, elements.ToArray());
|
|
}
|
|
|
|
/// <summary>
|
|
/// Creates a render target surface that is compatible with the current device settings.
|
|
/// </summary>
|
|
/// <param name="width">The width of the surface.</param>
|
|
/// <param name="height">The height of the surface.</param>
|
|
/// <returns>The newly created render target surface.</returns>
|
|
public Texture CreateRenderTarget(int width, int height)
|
|
{
|
|
return new Texture(Device.UnderlyingDevice, width, height, 1, Usage.RenderTarget, manager.CurrentSettings.BackBufferFormat, Pool.Default);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Creates a resolve target for capturing the back buffer.
|
|
/// </summary>
|
|
/// <returns>The newly created resolve target.</returns>
|
|
public Texture CreateResolveTarget()
|
|
{
|
|
return new Texture(Device.UnderlyingDevice, manager.ScreenWidth, manager.ScreenHeight, 1, Usage.RenderTarget, manager.CurrentSettings.BackBufferFormat, Pool.Default);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Resolves the current back buffer into a texture.
|
|
/// </summary>
|
|
/// <param name="target">The target texture.</param>
|
|
/// <exception cref="InvalidOperationException">Thrown when the resolve process fails.</exception>
|
|
public void ResolveBackBuffer(Texture target)
|
|
{
|
|
ResolveBackBuffer(target, 0);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Resolves the current back buffer into a texture.
|
|
/// </summary>
|
|
/// <param name="target">The target texture.</param>
|
|
/// <param name="backBufferIndex">The index of the back buffer.</param>
|
|
/// <exception cref="InvalidOperationException">Thrown when the resolve process fails.</exception>
|
|
public void ResolveBackBuffer(Texture target, int backBufferIndex)
|
|
{
|
|
// disable exceptions for this method
|
|
bool storedThrow = Configuration.ThrowOnError;
|
|
Configuration.ThrowOnError = false;
|
|
Surface destination = null;
|
|
|
|
try
|
|
{
|
|
// grab the current back buffer
|
|
Surface backBuffer = Device.GetBackBuffer(0, backBufferIndex);
|
|
if (backBuffer == null || Result.Last.IsFailure)
|
|
throw new InvalidOperationException("Could not obtain back buffer surface.");
|
|
|
|
// grab the destination surface
|
|
destination = target.GetSurfaceLevel(0);
|
|
if (destination == null || Result.Last.IsFailure)
|
|
throw new InvalidOperationException("Could not obtain resolve target surface.");
|
|
|
|
// first try to copy using linear filtering
|
|
if (Device.StretchRectangle(backBuffer, destination, TextureFilter.Linear).IsFailure)
|
|
{
|
|
// that failed, so try with no filtering
|
|
if (Device.StretchRectangle(backBuffer, destination, TextureFilter.None).IsFailure)
|
|
{
|
|
// that failed as well, so the last thing we can try is a load surface call
|
|
if (Surface.FromSurface(destination, backBuffer, Filter.Default, 0).IsFailure)
|
|
throw new InvalidOperationException("Could not copy surfaces.");
|
|
}
|
|
}
|
|
}
|
|
finally
|
|
{
|
|
if (destination != null)
|
|
destination.Dispose();
|
|
Configuration.ThrowOnError = storedThrow;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Resets the render target.
|
|
/// </summary>
|
|
public void ResetRenderTarget()
|
|
{
|
|
Surface backBuffer = Device.GetBackBuffer(0, 0);
|
|
|
|
try
|
|
{
|
|
Device.SetRenderTarget(0, backBuffer);
|
|
}
|
|
finally
|
|
{
|
|
backBuffer.Dispose();
|
|
}
|
|
}
|
|
}
|
|
}
|