123 lines
3.4 KiB
C#
123 lines
3.4 KiB
C#
#region Copyright & License Information
|
|
/*
|
|
* Copyright 2007-2011 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.Collections.Generic;
|
|
using System.Drawing;
|
|
using System.Drawing.Imaging;
|
|
using System.IO;
|
|
using OpenRA.FileFormats.Graphics;
|
|
|
|
namespace OpenRA.Graphics
|
|
{
|
|
public static class Util
|
|
{
|
|
public static string[] ReadAllLines(Stream s)
|
|
{
|
|
List<string> result = new List<string>();
|
|
using (StreamReader reader = new StreamReader(s))
|
|
while(!reader.EndOfStream)
|
|
{
|
|
var line = reader.ReadLine();
|
|
if( !string.IsNullOrEmpty( line ) && line[0] != '#' )
|
|
result.Add( line );
|
|
}
|
|
|
|
return result.ToArray();
|
|
}
|
|
|
|
public static T[] MakeArray<T>(int count, Converter<int, T> f)
|
|
{
|
|
T[] result = new T[count];
|
|
for (int i = 0; i < count; i++)
|
|
result[i] = f(i);
|
|
|
|
return result;
|
|
}
|
|
|
|
static float[] channelSelect = { 0.75f, 0.25f, -0.25f, -0.75f };
|
|
|
|
public static void FastCreateQuad(Vertex[] vertices, uint[] indices, float2 o, Sprite r, int palette, int nv, int ni, float2 size)
|
|
{
|
|
var attrib = new float2(palette / (float)HardwarePalette.MaxPalettes, channelSelect[(int)r.channel]);
|
|
|
|
vertices[nv] = new Vertex(o,
|
|
r.FastMapTextureCoords(0), attrib);
|
|
vertices[nv + 1] = new Vertex(new float2(o.X + size.X, o.Y),
|
|
r.FastMapTextureCoords(1), attrib);
|
|
vertices[nv + 2] = new Vertex(new float2(o.X, o.Y + size.Y),
|
|
r.FastMapTextureCoords(2), attrib);
|
|
vertices[nv + 3] = new Vertex(new float2(o.X + size.X, o.Y + size.Y),
|
|
r.FastMapTextureCoords(3), attrib);
|
|
|
|
indices[ni] = (uint)(nv);
|
|
indices[ni + 1] = indices[ni + 3] = (uint)(nv + 1);
|
|
indices[ni + 2] = indices[ni + 5] = (uint)(nv + 2);
|
|
indices[ni + 4] = (uint)(nv + 3);
|
|
}
|
|
|
|
static readonly int[] channelMasks = { 2, 1, 0, 3 }; // yes, our channel order is nuts.
|
|
public static void FastCopyIntoChannel(Sprite dest, byte[] src)
|
|
{
|
|
var data = dest.sheet.Data;
|
|
var srcStride = dest.bounds.Width;
|
|
var destStride = dest.sheet.Size.Width * 4;
|
|
var destOffset = destStride * dest.bounds.Top + dest.bounds.Left * 4 + channelMasks[(int)dest.channel];
|
|
var destSkip = destStride - 4 * srcStride;
|
|
var height = dest.bounds.Height;
|
|
|
|
var srcOffset = 0;
|
|
for (var j = 0; j < height; j++)
|
|
{
|
|
for (int i = 0; i < srcStride; i++, srcOffset++)
|
|
{
|
|
data[destOffset] = src[srcOffset];
|
|
destOffset += 4;
|
|
}
|
|
destOffset += destSkip;
|
|
}
|
|
}
|
|
|
|
public static Color Lerp(float t, Color a, Color b)
|
|
{
|
|
return Color.FromArgb(
|
|
LerpChannel(t, a.A, b.A),
|
|
LerpChannel(t, a.R, b.R),
|
|
LerpChannel(t, a.G, b.G),
|
|
LerpChannel(t, a.B, b.B));
|
|
}
|
|
|
|
public static int LerpARGBColor(float t, int c1, int c2)
|
|
{
|
|
int a = LerpChannel(t, (c1 >> 24) & 255, (c2 >> 24) & 255);
|
|
int r = LerpChannel(t, (c1 >> 16) & 255, (c2 >> 16) & 255);
|
|
int g = LerpChannel(t, (c1 >> 8) & 255, (c2 >> 8) & 255);
|
|
int b = LerpChannel(t, c1 & 255, c2 & 255);
|
|
return (a << 24) | (r << 16) | (g << 8) | b;
|
|
}
|
|
|
|
public static int LerpChannel(float t, int a, int b)
|
|
{
|
|
return (int)((1 - t) * a + t * b);
|
|
}
|
|
|
|
public static int NextPowerOf2(int v)
|
|
{
|
|
--v;
|
|
v |= v >> 1;
|
|
v |= v >> 2;
|
|
v |= v >> 4;
|
|
v |= v >> 8;
|
|
++v;
|
|
return v;
|
|
}
|
|
}
|
|
}
|