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Make fonts use A8 textures.

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Reduces VRAM usage.
This commit is contained in:
Pieter-Jan Briers
2019-05-04 22:17:06 +02:00
parent 772b680723
commit 296d39bee6
2 changed files with 11 additions and 14 deletions
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4
Robust.Client/Graphics/Clyde/Clyde.Textures.cs
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@@ -89,6 +89,10 @@ namespace Robust.Client.Graphics.Clyde
}
else if (pixelType == typeof(Alpha8))
{
if (image.Width % 4 != 0 || image.Height % 4 != 0)
{
throw new ArgumentException("Alpha8 images must have multiple of 4 sizes.");
}
internalFormat = PixelInternalFormat.R8;
pixelDataFormat = PixelFormat.Red;
pixelDataType = PixelType.UnsignedByte;

21
Robust.Client/Graphics/FontManager.cs
View File

@@ -101,8 +101,11 @@ namespace Robust.Client.Graphics
var atlasEntriesHorizontal = (int) Math.Ceiling(Math.Sqrt(count));
var atlasEntriesVertical =
(int) Math.Ceiling(count / (float) atlasEntriesHorizontal);
var atlas = new Image<Rgba32>(atlasEntriesHorizontal * maxGlyphSize.X,
atlasEntriesVertical * maxGlyphSize.Y);
var atlasDimX =
(int) Math.Round(atlasEntriesHorizontal * maxGlyphSize.X / 4f, MidpointRounding.AwayFromZero) * 4;
var atlasDimY =
(int) Math.Round(atlasEntriesVertical * maxGlyphSize.Y / 4f, MidpointRounding.AwayFromZero) * 4;
var atlas = new Image<Alpha8>(atlasDimX, atlasDimY);
var glyphMap = new Dictionary<char, uint>();
var metricsMap = new Dictionary<uint, CharMetrics>();
@@ -152,6 +155,7 @@ namespace Robust.Client.Graphics
bitmapImage = MonoBitMapToImage(bitmap);
break;
}
case PixelMode.Gray:
{
ReadOnlySpan<Alpha8> span;
@@ -163,6 +167,7 @@ namespace Robust.Client.Graphics
bitmapImage = Image.LoadPixelData(span, bitmap.Width, bitmap.Rows);
break;
}
case PixelMode.Gray2:
case PixelMode.Gray4:
case PixelMode.Lcd:
@@ -183,18 +188,6 @@ namespace Robust.Client.Graphics
atlasRegions.Add(glyphIndex, UIBox2i.FromDimensions(offsetX, offsetY, bitmap.Width, bitmap.Rows));
}
for (var x = 0; x < atlas.Width; x++)
{
for (var y = 0; y < atlas.Height; y++)
{
var a = atlas[x, y].A;
if (a != 0)
{
atlas[x, y] = new Rgba32(255, 255, 255, a);
}
}
}
var atlasDictionary = new Dictionary<uint, AtlasTexture>();
var texture = Texture.LoadFromImage(atlas, $"font-{face.FamilyName}-{size}");