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Merge pull request #3773 from Mailaender/palette-clean

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Cleaned up the palette code
This commit is contained in:
Chris Forbes
2013-09-02 03:34:39 -07:00
parent d45411518c e4c5ba26a9
commit 207401e6aa
3 changed files with 65 additions and 64 deletions
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62
OpenRA.FileFormats/HSLColor.cs
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@@ -19,29 +19,11 @@ namespace OpenRA.FileFormats
public readonly byte L;
public readonly Color RGB;
public HSLColor(byte h, byte s, byte l)
{
H = h;
S = s;
L = l;
RGB = RGBFromHSL(H / 255f, S / 255f, L / 255f);
}
public void ToHSV(out float h, out float s, out float v)
{
var ll = 2*L / 255f;
var ss = S / 255f * ((ll <= 1) ? ll : 2 - ll);
h = H / 255f;
s = (2 * ss) / (ll + ss);
v = (ll + ss) / 2;
}
public static HSLColor FromHSV(float h, float s, float v)
{
var ll = 0.5f*(2 - s)*v;
var ss = (ll >= 1 || v <= 0) ? 0 : 0.5f*s*v / (ll <= 0.5f ? ll : 1 - ll);
return new HSLColor((byte)(255*h), (byte)(255*ss), (byte)(255*ll));
var ll = 0.5f * (2 - s) * v;
var ss = (ll >= 1 || v <= 0) ? 0 : 0.5f * s * v / (ll <= 0.5f ? ll : 1 - ll);
return new HSLColor((byte)(255 * h), (byte)(255 * ss), (byte)(255 * ll));
}
public static HSLColor FromRGB(int r, int g, int b)
@@ -59,7 +41,7 @@ namespace OpenRA.FileFormats
var q = (l < 0.5f) ? l * (1 + s) : l + s - (l * s);
var p = 2 * l - q;
float[] trgb = { h + 1 / 3.0f, h, h - 1/3.0f };
float[] trgb = { h + 1 / 3.0f, h, h - 1 / 3.0f };
float[] rgb = { 0, 0, 0 };
for (int k = 0; k < 3; k++)
@@ -70,27 +52,45 @@ namespace OpenRA.FileFormats
for (int k = 0; k < 3; k++)
{
if (trgb[k] < 1 / 6.0f) { rgb[k] = (p + ((q - p) * 6 * trgb[k])); }
if (trgb[k] < 1 / 6.0f) { rgb[k] = p + ((q - p) * 6 * trgb[k]); }
else if (trgb[k] >= 1 / 6.0f && trgb[k] < 0.5) { rgb[k] = q; }
else if (trgb[k] >= 0.5f && trgb[k] < 2.0f / 3) { rgb[k] = (p + ((q - p) * 6 * (2.0f / 3 - trgb[k]))); }
else if (trgb[k] >= 0.5f && trgb[k] < 2.0f / 3) { rgb[k] = p + ((q - p) * 6 * (2.0f / 3 - trgb[k])); }
else { rgb[k] = p; }
}
return Color.FromArgb((int)(rgb[0] * 255), (int)(rgb[1] * 255), (int)(rgb[2] * 255));
}
public static bool operator ==(HSLColor me, HSLColor other)
{
return me.H == other.H && me.S == other.S && me.L == other.L;
}
public static bool operator !=(HSLColor me, HSLColor other) { return !(me == other); }
public HSLColor(byte h, byte s, byte l)
{
H = h;
S = s;
L = l;
RGB = RGBFromHSL(H / 255f, S / 255f, L / 255f);
}
public void ToHSV(out float h, out float s, out float v)
{
var ll = 2 * L / 255f;
var ss = S / 255f * ((ll <= 1) ? ll : 2 - ll);
h = H / 255f;
s = (2 * ss) / (ll + ss);
v = (ll + ss) / 2;
}
public override string ToString()
{
return "{0},{1},{2}".F(H, S, L);
}
public static bool operator ==(HSLColor me, HSLColor other)
{
return (me.H == other.H && me.S == other.S && me.L == other.L);
}
public static bool operator !=(HSLColor me, HSLColor other) { return !(me == other); }
public override int GetHashCode() { return H.GetHashCode() ^ S.GetHashCode() ^ L.GetHashCode(); }
public override bool Equals(object obj)

43
OpenRA.FileFormats/Palette.cs
View File

@@ -8,16 +8,22 @@
*/
#endregion
using System;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System;
using System.Reflection;
namespace OpenRA.FileFormats
{
public class Palette
{
public static Palette Load(string filename, int[] remap)
{
using (var s = File.OpenRead(filename))
return new Palette(s, remap);
}
uint[] colors;
public Color GetColor(int index)
{
@@ -41,8 +47,8 @@ namespace OpenRA.FileFormats
public void ApplyRemap(IPaletteRemap r)
{
for(int i = 0; i < 256; i++)
colors[i] = (uint)r.GetRemappedColor(Color.FromArgb((int)colors[i]),i).ToArgb();
for (int i = 0; i < 256; i++)
colors[i] = (uint)r.GetRemappedColor(Color.FromArgb((int)colors[i]), i).ToArgb();
}
public Palette(Stream s, int[] remapShadow)
@@ -60,7 +66,7 @@ namespace OpenRA.FileFormats
}
}
colors[0] = 0; //convert black background to transparency
colors[0] = 0; // convert black background to transparency
foreach (int i in remapShadow)
colors[i] = 140u << 24;
}
@@ -101,24 +107,19 @@ namespace OpenRA.FileFormats
}
public Bitmap AsBitmap()
{
var b = new Bitmap(256, 1, PixelFormat.Format32bppArgb);
var data = b.LockBits(new Rectangle(0, 0, b.Width, b.Height),
ImageLockMode.WriteOnly, PixelFormat.Format32bppArgb);
unsafe
{
uint* c = (uint*)data.Scan0;
for (var x = 0; x < 256; x++)
*(c + x) = colors[x];
}
b.UnlockBits(data);
return b;
}
public static Palette Load(string filename, int[] remap)
{
using(var s = File.OpenRead(filename))
return new Palette(s, remap);
var b = new Bitmap(256, 1, PixelFormat.Format32bppArgb);
var data = b.LockBits(new Rectangle(0, 0, b.Width, b.Height),
ImageLockMode.WriteOnly, PixelFormat.Format32bppArgb);
unsafe
{
uint* c = (uint*)data.Scan0;
for (var x = 0; x < 256; x++)
*(c + x) = colors[x];
}
b.UnlockBits(data);
return b;
}
}

24
OpenRA.FileFormats/PlayerColorRemap.cs
View File

@@ -15,33 +15,33 @@ using System.Linq;
namespace OpenRA.FileFormats
{
public class PlayerColorRemap : IPaletteRemap
{
Dictionary<int, Color> remapColors;
public static int GetRemapIndex(int[] Ramp, int i)
public static int GetRemapIndex(int[] ramp, int i)
{
return Ramp[i];
return ramp[i];
}
public PlayerColorRemap(int[] Ramp, HSLColor c, float rampFraction)
public PlayerColorRemap(int[] ramp, HSLColor c, float rampFraction)
{
// Increase luminosity if required to represent the full ramp
var rampRange = (byte)((1 - rampFraction)*c.L);
var rampRange = (byte)((1 - rampFraction) * c.L);
var c1 = new HSLColor(c.H, c.S, (byte)Math.Max(rampRange, c.L)).RGB;
var c2 = new HSLColor(c.H, c.S, (byte)Math.Max(0, c.L - rampRange)).RGB;
var baseIndex = Ramp[0];
var RemapRamp = Ramp.Select(r => r - Ramp[0]).ToArray();
var baseIndex = ramp[0];
var remapRamp = ramp.Select(r => r - ramp[0]).ToArray();
if (Ramp[0] > Ramp[15]) // reversed remapping
{
baseIndex = Ramp[15];
// reversed remapping
if (ramp[0] > ramp[15])
{
baseIndex = ramp[15];
for (var i = 15; i > 0; i--)
RemapRamp = Ramp.Select(r => r - Ramp[15]).ToArray();
remapRamp = ramp.Select(r => r - ramp[15]).ToArray();
}
remapColors = RemapRamp.Select((x, i) => Pair.New(baseIndex + i, Exts.ColorLerp(x / 16f, c1, c2)))
remapColors = remapRamp.Select((x, i) => Pair.New(baseIndex + i, Exts.ColorLerp(x / 16f, c1, c2)))
.ToDictionary(u => u.First, u => u.Second);
}