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git-svn-id: svn://svn.ijw.co.nz/svn/OpenRa@1953 993157c7-ee19-0410-b2c4-bb4e9862e678

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This commit is contained in:
chrisf
2008-03-25 00:45:43 +00:00
parent eb7094d49e
commit 33e856345f
16 changed files with 126 additions and 179 deletions
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56
OpenRa.Game/Util.cs
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@@ -17,17 +17,24 @@ namespace OpenRa.Game
return new float2(paletteLine / 16.0f, channelSelect[(int)channel]);
}
public static Vertex MakeVertex(float2 o, float2 uv, Sprite r, int palette)
static float2 KLerp(float2 o, float2 d, int k)
{
switch (k)
{
case 0: return o;
case 1: return new float2(o.X + d.X, o.Y);
case 2: return new float2(o.X, o.Y + d.Y);
case 3: return new float2(o.X + d.X, o.Y + d.Y);
default: throw new InvalidOperationException();
}
}
static Vertex MakeVertex(float2 o, int k, Sprite r, float2 attrib)
{
return new Vertex(
float2.Lerp( o, o + r.Size, uv ),
r.MapTextureCoords(uv),
EncodeVertexAttributes(r.channel, palette));
}
static float Lerp(float a, float b, float t)
{
return (1 - t) * a + t * b;
KLerp( o, r.size, k ),
r.FastMapTextureCoords(k),
attrib);
}
public static string[] ReadAllLines(Stream s)
@@ -49,28 +56,27 @@ namespace OpenRa.Game
return result;
}
static float2[] uv =
{
new float2( 0,0 ),
new float2( 1,0 ),
new float2( 0,1 ),
new float2( 1,1 ),
};
public static void CreateQuad(List<Vertex> vertices, List<ushort> indices, float2 o, Sprite r, int palette)
{
ushort offset = (ushort)vertices.Count;
float2 attrib = EncodeVertexAttributes(r.channel, palette);
foreach( float2 p in uv )
vertices.Add(Util.MakeVertex(o, p, r, palette));
Vertex[] v = new Vertex[]
{
Util.MakeVertex(o, 0, r, attrib),
Util.MakeVertex(o, 1, r, attrib),
Util.MakeVertex(o, 2, r, attrib),
Util.MakeVertex(o, 3, r, attrib),
};
indices.Add(offset);
indices.Add((ushort)(offset + 1));
indices.Add((ushort)(offset + 2));
vertices.AddRange(v);
indices.Add((ushort)(offset + 1));
indices.Add((ushort)(offset + 3));
indices.Add((ushort)(offset + 2));
ushort[] i = new ushort[]
{
offset, (ushort)(offset + 1), (ushort)(offset + 2), (ushort)(offset + 1), (ushort)(offset + 3), (ushort)(offset + 2)
};
indices.AddRange(i);
}
public static void FastCopyIntoChannel(Sprite dest, byte[] src)