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Reworked internal palettes in video reader classes

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This removes the need to pack & unpack color bytes as uints for no gain.
This commit is contained in:
penev92
2021-08-02 19:32:28 +03:00
committed by Matthias Mailänder
parent c4ab7041b8
commit cb8530fbae
2 changed files with 22 additions and 17 deletions
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21
OpenRA.Mods.Cnc/FileFormats/WsaReader.cs
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@@ -32,7 +32,7 @@ namespace OpenRA.Mods.Cnc.FileFormats
public int SampleRate => 0;
readonly Stream stream;
readonly uint[] palette;
readonly byte[] paletteBytes;
readonly uint[] frameOffsets;
readonly ushort totalFrameWidth;
@@ -60,8 +60,8 @@ namespace OpenRA.Mods.Cnc.FileFormats
if (flags == 1)
{
palette = new uint[256];
for (var i = 0; i < palette.Length; i++)
paletteBytes = new byte[1024];
for (var i = 0; i < paletteBytes.Length;)
{
var r = (byte)(stream.ReadByte() << 2);
var g = (byte)(stream.ReadByte() << 2);
@@ -72,7 +72,10 @@ namespace OpenRA.Mods.Cnc.FileFormats
g |= (byte)(g >> 6);
b |= (byte)(b >> 6);
palette[i] = (uint)((255 << 24) | (r << 16) | (g << 8) | b);
paletteBytes[i++] = b;
paletteBytes[i++] = g;
paletteBytes[i++] = r;
paletteBytes[i++] = 255;
}
for (var i = 0; i < frameOffsets.Length; i++)
@@ -138,11 +141,11 @@ namespace OpenRA.Mods.Cnc.FileFormats
{
for (var x = 0; x < Width; x++)
{
var color = palette[currentFramePaletteIndexData[c++]];
CurrentFrameData[position++] = (byte)(color & 0xFF);
CurrentFrameData[position++] = (byte)(color >> 8 & 0xFF);
CurrentFrameData[position++] = (byte)(color >> 16 & 0xFF);
CurrentFrameData[position++] = (byte)(color >> 24 & 0xFF);
var colorIndex = currentFramePaletteIndexData[c++];
CurrentFrameData[position++] = paletteBytes[colorIndex * 4];
CurrentFrameData[position++] = paletteBytes[colorIndex * 4 + 1];
CurrentFrameData[position++] = paletteBytes[colorIndex * 4 + 2];
CurrentFrameData[position++] = paletteBytes[colorIndex * 4 + 3];
}
// Recalculate the position in the byte array to the start of the next pixel row just in case there is padding in the frame.