alysbrooks-public » games » isometric-park-fna

Location: alysbrooks-public/games/isometric-park-fna/FNA/src/Graphics/RenderTargetUsage.cs

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Commit Description:
Optimize PreserveCounts and only recalculate when needed....
Commit Description:
Optimize PreserveCounts and only recalculate when needed. Previously would recalculate preservecounts every Update call (~1 per frame), which isn't necessary when there's no tick. Might be some room to tweak, like doing these updates only when preserves change. Some measurements: This takes about 30ms versus the .25 ms with no preserve (then like .0002ms). When the map is filled up with preserve, about 35ms and 9ms. With a handful of cells, it's more like 0.8ms (before JIT optimizes most of it away).
References:
r589:842194b6bfa6 m6-tiles-and-trees
File last commit:
r0:e33f209de7e5 default
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FNA/src/Graphics/RenderTargetUsage.cs
30 lines | 873 B | text/x-csharp | CSharpLexer
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#region License
/* FNA - XNA4 Reimplementation for Desktop Platforms
* Copyright 2009-2020 Ethan Lee and the MonoGame Team
*
* Released under the Microsoft Public License.
* See LICENSE for details.
*/
#endregion
namespace Microsoft.Xna.Framework.Graphics
{
/// <summary>
/// Defines if the previous content in a render target is preserved when it set on the graphics device.
/// </summary>
public enum RenderTargetUsage
{
/// <summary>
/// The render target content will not be preserved.
/// </summary>
DiscardContents,
/// <summary>
/// The render target content will be preserved even if it is slow or requires extra memory.
/// </summary>
PreserveContents,
/// <summary>
/// The render target content might be preserved if the platform can do so without a penalty in performance or memory usage.
/// </summary>
PlatformContents
}
}