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Parse lightmaps as flat array rather than multidimensional array

This commit is contained in:
Jarrod Doyle 2024-08-27 07:10:38 +01:00
parent efb15c19dd
commit d125fb2cd3
Signed by: Jayrude
GPG Key ID: 38B57B16E7C0ADF7
2 changed files with 21 additions and 24 deletions
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39
project/code/LGS/Database/Chunks/WorldRep.cs
View File

@ -97,45 +97,42 @@ public class WorldRep : IChunk
public struct Lightmap
{
public byte[,,,] Pixels { get; set; }
public byte[] Pixels { get; set; }
public int Layers;
public int Width;
public int Height;
public int Bpp;
public Lightmap(BinaryReader reader, byte width, byte height, uint bitmask, int bytesPerPixel)
{
var count = 1 + BitOperations.PopCount(bitmask);
Pixels = new byte[count, height, width, bytesPerPixel];
for (var c = 0; c < count; c++)
{
for (var y = 0; y < height; y++)
{
for (var x = 0; x < width; x++)
{
for (var b = 0; b < bytesPerPixel; b++)
{
Pixels[c, y, x, b] = reader.ReadByte();
}
}
}
}
var length = bytesPerPixel * width * height * count;
Pixels = reader.ReadBytes(length);
Layers = count;
Width = width;
Height = height;
Bpp = bytesPerPixel;
}
public readonly Vector4 GetPixel(uint layer, uint x, uint y)
{
if (layer >= Pixels.GetLength(0) || x >= Pixels.GetLength(2) || y >= Pixels.GetLength(1))
if (layer >= Layers || x >= Width || y >= Height)
{
return Vector4.Zero;
}
switch (Pixels.GetLength(3))
var idx = 0 + x * Bpp + y * Bpp * Width + layer * Bpp * Width * Height;
switch (Bpp)
{
case 1:
var raw1 = Pixels[layer, y, x, 0];
var raw1 = Pixels[idx];
return new Vector4(raw1, raw1, raw1, 255) / 255.0f;
case 2:
var raw2 = Pixels[layer, y, x, 0] + (Pixels[layer, y, x, 1] << 8);
var raw2 = Pixels[idx] + (Pixels[idx + 1] << 8);
return new Vector4(raw2 & 31, (raw2 >> 5) & 31, (raw2 >> 10) & 31, 31) / 31.0f;
case 4:
// 4bpp stored as BGRA
return new Vector4(Pixels[layer, y, x, 2], Pixels[layer, y, x, 1], Pixels[layer, y, x, 0], Pixels[layer, y, x, 3]) / 255.0f;
return new Vector4(Pixels[idx + 2], Pixels[idx + 1], Pixels[idx], Pixels[idx + 3]) / 255.0f;
default:
return Vector4.Zero;
}

6
project/code/TMV/Mission.cs
View File

@ -299,9 +299,9 @@ public partial class Mission : Node3D
if (info.cellIndex >= cells.Length) GD.Print($"CellIndex too big: {info.cellIndex}/{cells.Length}");
if (info.lightmapIndex >= cells[info.cellIndex].Lightmaps.Length) GD.Print($"LightmapIndex too big: {info.lightmapIndex}/{cells[info.cellIndex].Lightmaps.Length}");
var lightmap = cells[info.cellIndex].Lightmaps[info.lightmapIndex];
var layers = (uint)lightmap.Pixels.GetLength(0);
var height = (uint)lightmap.Pixels.GetLength(1);
var width = (uint)lightmap.Pixels.GetLength(2);
var layers = (uint)lightmap.Layers;
var height = (uint)lightmap.Height;
var width = (uint)lightmap.Width;
for (uint y = 0; y < height; y++)
{
for (uint x = 0; x < width; x++)