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Improve performance of line rendering.

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- Create an overload that renders a line in one color, as this allows most existing calls to be simplified. This also allows a slight performance improvement by only normalizing the components once.
- Introduce a DrawLineStrip method. This improves performance by allowing the color components to be normalized once for the whole strip, and only needing to calculate vertices once per point rather than twice since we can reuse the last result.
This commit is contained in:
RoosterDragon
2015-05-19 20:50:51 +01:00
parent 9397749118
commit b9ebeaadca
12 changed files with 138 additions and 100 deletions
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20
OpenRA.Mods.Common/Widgets/PerfGraphWidget.cs
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@@ -23,34 +23,26 @@ namespace OpenRA.Mods.Common.Widgets
var origin = new float2(rect.Right, rect.Bottom);
var basis = new float2(-rect.Width / 100, -rect.Height / 100);
Game.Renderer.LineRenderer.DrawLine(origin, origin + new float2(100, 0) * basis, Color.White, Color.White);
Game.Renderer.LineRenderer.DrawLine(origin + new float2(100, 0) * basis, origin + new float2(100, 100) * basis, Color.White, Color.White);
Game.Renderer.LineRenderer.DrawLine(origin, origin + new float2(100, 0) * basis, Color.White);
Game.Renderer.LineRenderer.DrawLine(origin + new float2(100, 0) * basis, origin + new float2(100, 100) * basis, Color.White);
var k = 0;
foreach (var item in PerfHistory.Items.Values)
{
var n = 0;
item.Samples().Aggregate((a, b) =>
{
Game.Renderer.LineRenderer.DrawLine(
origin + new float2(n, (float)a) * basis,
origin + new float2(n + 1, (float)b) * basis,
item.C, item.C);
++n;
return b;
});
Game.Renderer.LineRenderer.DrawLineStrip(
item.Samples().Select((sample, i) => origin + new float2(i, (float)sample) * basis), item.C);
var u = new float2(rect.Left, rect.Top);
Game.Renderer.LineRenderer.DrawLine(
u + new float2(10, 10 * k + 5),
u + new float2(12, 10 * k + 5),
item.C, item.C);
item.C);
Game.Renderer.LineRenderer.DrawLine(
u + new float2(10, 10 * k + 4),
u + new float2(12, 10 * k + 4),
item.C, item.C);
item.C);
++k;
}