Files
OpenRA/OpenRA.Game/Graphics/SpriteRenderer.cs
2010-02-27 21:10:22 +13:00

92 lines
2.7 KiB
C#

#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 OpenRA.FileFormats.Graphics;
namespace OpenRA.Graphics
{
class SpriteRenderer
{
IVertexBuffer<Vertex> vertexBuffer;
IIndexBuffer indexBuffer;
Renderer renderer;
IShader shader;
const int spritesPerBatch = 1024;
Vertex[] vertices = new Vertex[4 * spritesPerBatch];
ushort[] indices = new ushort[6 * spritesPerBatch];
Sheet currentSheet = null;
int sprites = 0;
int nv = 0, ni = 0;
public SpriteRenderer(Renderer renderer, bool allowAlpha, IShader shader)
{
this.renderer = renderer;
this.shader = shader;
vertexBuffer = renderer.Device.CreateVertexBuffer( vertices.Length );
indexBuffer = renderer.Device.CreateIndexBuffer( indices.Length );
}
public SpriteRenderer(Renderer renderer, bool allowAlpha)
: this(renderer, allowAlpha, renderer.SpriteShader) { }
public void Flush()
{
if (sprites > 0)
{
shader.SetValue( "DiffuseTexture", currentSheet.Texture );
shader.Render(() =>
{
vertexBuffer.SetData(vertices);
indexBuffer.SetData(indices);
renderer.DrawBatch(vertexBuffer, indexBuffer,
new Range<int>(0, nv),
new Range<int>(0, ni),
currentSheet.Texture, PrimitiveType.TriangleList,
shader);
});
nv = 0; ni = 0;
currentSheet = null;
sprites = 0;
}
}
public void DrawSprite(Sprite s, float2 location, string palette)
{
DrawSprite(s, location, palette, s.size);
}
public void DrawSprite(Sprite s, float2 location, string palette, float2 size)
{
if (s.sheet != currentSheet)
Flush();
currentSheet = s.sheet;
Util.FastCreateQuad(vertices, indices, location.ToInt2(), s, Game.world.WorldRenderer.GetPaletteIndex(palette), nv, ni, size);
nv += 4; ni += 6;
if (++sprites >= spritesPerBatch)
Flush();
}
}
}