73 lines
1.9 KiB
C#
73 lines
1.9 KiB
C#
#region Copyright & License Information
|
|
/*
|
|
* Copyright 2007-2015 The OpenRA Developers (see AUTHORS)
|
|
* This file is part of OpenRA, which is free software. It is made
|
|
* available to you under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation. For more information,
|
|
* see COPYING.
|
|
*/
|
|
#endregion
|
|
|
|
using System;
|
|
using System.Drawing;
|
|
|
|
namespace OpenRA.Graphics
|
|
{
|
|
public class QuadRenderer : Renderer.IBatchRenderer
|
|
{
|
|
readonly Renderer renderer;
|
|
readonly IShader shader;
|
|
readonly Action renderAction;
|
|
|
|
readonly Vertex[] vertices;
|
|
int nv = 0;
|
|
|
|
public QuadRenderer(Renderer renderer, IShader shader)
|
|
{
|
|
this.renderer = renderer;
|
|
this.shader = shader;
|
|
vertices = new Vertex[renderer.TempBufferSize];
|
|
renderAction = () => renderer.DrawBatch(vertices, nv, PrimitiveType.QuadList);
|
|
}
|
|
|
|
public void Flush()
|
|
{
|
|
if (nv > 0)
|
|
{
|
|
renderer.Device.SetBlendMode(BlendMode.Alpha);
|
|
shader.Render(renderAction);
|
|
renderer.Device.SetBlendMode(BlendMode.None);
|
|
|
|
nv = 0;
|
|
}
|
|
}
|
|
|
|
public void FillRect(RectangleF rect, Color color)
|
|
{
|
|
renderer.CurrentBatchRenderer = this;
|
|
|
|
if (nv + 4 > renderer.TempBufferSize)
|
|
Flush();
|
|
|
|
color = Util.PremultiplyAlpha(color);
|
|
var r = color.R / 255.0f;
|
|
var g = color.G / 255.0f;
|
|
var b = color.B / 255.0f;
|
|
var a = color.A / 255.0f;
|
|
vertices[nv] = new Vertex(new float2(rect.Left, rect.Top), r, g, b, a);
|
|
vertices[nv + 1] = new Vertex(new float2(rect.Right, rect.Top), r, g, b, a);
|
|
vertices[nv + 2] = new Vertex(new float2(rect.Right, rect.Bottom), r, g, b, a);
|
|
vertices[nv + 3] = new Vertex(new float2(rect.Left, rect.Bottom), r, g, b, a);
|
|
|
|
nv += 4;
|
|
}
|
|
|
|
public void SetViewportParams(Size screen, float zoom, int2 scroll)
|
|
{
|
|
shader.SetVec("Scroll", scroll.X, scroll.Y);
|
|
shader.SetVec("r1", zoom * 2f / screen.Width, -zoom * 2f / screen.Height);
|
|
shader.SetVec("r2", -1, 1);
|
|
}
|
|
}
|
|
}
|