public unsafe Font(FontContent font)
{
Content = font;
Sources = new StructuredBuffer <GlyphSource>(BufferTarget.ShaderStorageBuffer, font.Characters.Count, font.Name + " Glyph Sources");
GL.BindTexture(TextureTarget.Texture2D, Atlas);
var data = font.Atlas.Pin();
for (int mipLevel = 0; mipLevel < font.Atlas.MipLevels; ++mipLevel)
{
GL.TexImage2D(TextureTarget.Texture2D, mipLevel, PixelInternalFormat.R8Snorm, font.Atlas.Width >> mipLevel, font.Atlas.Height >> mipLevel, 0, PixelFormat.Red, PixelType.Byte, new IntPtr(data + font.Atlas.GetMipStartIndex(mipLevel)));
}
font.Atlas.Unpin();
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMaxLevel, font.Atlas.MipLevels - 1);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.LinearMipmapLinear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
GL.BindTexture(TextureTarget.Texture2D, 0);
int nextSourceId = 0;
var sourcesData = new GlyphSource[font.Characters.Count];
foreach (var character in font.Characters)
{
sourceIds.Add(character.Key, nextSourceId);
sourcesData[nextSourceId] = new GlyphSource {
Minimum = new Vector2(character.Value.SourceMinimum.X, character.Value.SourceMinimum.Y),
PackedSpan = character.Value.SourceSpan.X | (character.Value.SourceSpan.Y << 16),
DistanceScale = character.Value.DistanceScale
};
++nextSourceId;
}
Sources.Update(sourcesData);
}
public unsafe Font(Device device, DeviceContext context, FontContent font)
{
Content = font;
Sources = new StructuredBuffer <GlyphSource>(device, font.Characters.Count, font.Name + " Glyph Sources");
Atlas = new Texture2D(device, new Texture2DDescription
{
ArraySize = 1,
BindFlags = BindFlags.ShaderResource,
CpuAccessFlags = CpuAccessFlags.None,
Format = SharpDX.DXGI.Format.R8_SNorm,
Height = font.Atlas.Height,
Width = font.Atlas.Width,
MipLevels = font.Atlas.MipLevels,
OptionFlags = ResourceOptionFlags.None,
SampleDescription = new SharpDX.DXGI.SampleDescription(1, 0),
Usage = ResourceUsage.Default
});
Atlas.DebugName = font.Name + " Atlas";
AtlasSRV = new ShaderResourceView(device, Atlas);
AtlasSRV.DebugName = font.Name + " Atlas SRV";
var data = font.Atlas.Pin();
for (int mipLevel = 0; mipLevel < font.Atlas.MipLevels; ++mipLevel)
{
var databox = new DataBox(new IntPtr(data + font.Atlas.GetMipStartIndex(mipLevel)), font.Atlas.GetRowPitch(mipLevel), 0);
context.UpdateSubresource(databox, Atlas, mipLevel);
}
font.Atlas.Unpin();
sourceIds = new Dictionary <char, int>();
int nextSourceId = 0;
var sourcesData = new GlyphSource[font.Characters.Count];
foreach (var character in font.Characters)
{
sourceIds.Add(character.Key, nextSourceId);
sourcesData[nextSourceId] = new GlyphSource
{
Minimum = new Vector2(character.Value.SourceMinimum.X, character.Value.SourceMinimum.Y),
PackedSpan = character.Value.SourceSpan.X | (character.Value.SourceSpan.Y << 16),
DistanceScale = character.Value.DistanceScale
};
++nextSourceId;
}
Sources.Update(context, sourcesData);
}