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Support multiple sheets in TerrainSpriteLayer.

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This commit is contained in:
Paul Chote
2020-12-29 12:03:47 +00:00
committed by reaperrr
parent b0aa32cd1b
commit 142870d78a
7 changed files with 67 additions and 32 deletions
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22
OpenRA.Game/Graphics/SpriteRenderer.cs
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@@ -10,6 +10,7 @@
#endregion
using System;
using System.Collections.Generic;
using System.Linq;
using OpenRA.Primitives;
@@ -17,7 +18,7 @@ namespace OpenRA.Graphics
{
public class SpriteRenderer : Renderer.IBatchRenderer
{
const int SheetCount = 7;
public const int SheetCount = 7;
static readonly string[] SheetIndexToTextureName = Exts.MakeArray(SheetCount, i => "Texture{0}".F(i));
readonly Renderer renderer;
@@ -151,15 +152,30 @@ namespace OpenRA.Graphics
nv += 6;
}
public void DrawVertexBuffer(IVertexBuffer<Vertex> buffer, int start, int length, PrimitiveType type, Sheet sheet, BlendMode blendMode)
public void DrawVertexBuffer(IVertexBuffer<Vertex> buffer, int start, int length, PrimitiveType type, IEnumerable<Sheet> sheets, BlendMode blendMode)
{
shader.SetTexture("Texture0", sheet.GetTexture());
var i = 0;
foreach (var s in sheets)
{
if (i >= SheetCount)
ThrowSheetOverflow(nameof(sheets));
if (s != null)
shader.SetTexture(SheetIndexToTextureName[i++], s.GetTexture());
}
renderer.Context.SetBlendMode(blendMode);
shader.PrepareRender();
renderer.DrawBatch(buffer, start, length, type);
renderer.Context.SetBlendMode(BlendMode.None);
}
// PERF: methods that throw won't be inlined by the JIT, so extract a static helper for use on hot paths
static void ThrowSheetOverflow(string paramName)
{
throw new ArgumentException("SpriteRenderer only supports {0} simultaneous textures".F(SheetCount), paramName);
}
// For RGBAColorRenderer
internal void DrawRGBAVertices(Vertex[] v)
{