mirror of
https://github.com/aharabada/glitchy-engine-beef.git
synced 2026-09-05 13:01:52 +00:00
Implemented FontRenderer
This commit is contained in:
Simon Lübeß
@@ -10,3 +10,6 @@
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[submodule "vendor/lodepng-beef"]
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path = vendor/lodepng-beef
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url = https://github.com/aharabada/lodepng-beef.git
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[submodule "GlitchyEngine\\vendor\\freetype"]
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path = GlitchyEngine\\vendor\\freetype
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url = https://github.com/aharabada/FreeType-beef.git
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+1
-1
@@ -1,5 +1,5 @@
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FileVersion = 1
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Projects = {Sandbox = {Path = "Sandbox"}, GlitchyEngine = {Path = "GlitchyEngine"}, GlitchLog = {Path = "GlitchLog"}, DirectX = {Path = "GlitchyEngine/vendor/directx/DirectX"}, ImGui = {Path = "GlitchyEngine/vendor/imgui-beef/ImGui"}, ImGuiImplWin32 = {Path = "GlitchyEngine/vendor/imgui-beef/ImGuiImplWin32"}, ImGuiImplDX11 = {Path = "GlitchyEngine/vendor/imgui-beef/ImGuiImplDX11"}, DirectXTK = {Path = "GlitchyEngine/vendor/DirectXTK/DirectXTK-beef"}, LodePng = {Path = "vendor/lodepng-beef/lodepng-beef"}}
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Projects = {Sandbox = {Path = "Sandbox"}, GlitchyEngine = {Path = "GlitchyEngine"}, GlitchLog = {Path = "GlitchLog"}, DirectX = {Path = "GlitchyEngine/vendor/directx/DirectX"}, ImGui = {Path = "GlitchyEngine/vendor/imgui-beef/ImGui"}, ImGuiImplWin32 = {Path = "GlitchyEngine/vendor/imgui-beef/ImGuiImplWin32"}, ImGuiImplDX11 = {Path = "GlitchyEngine/vendor/imgui-beef/ImGuiImplDX11"}, DirectXTK = {Path = "GlitchyEngine/vendor/DirectXTK/DirectXTK-beef"}, LodePng = {Path = "vendor/lodepng-beef/lodepng-beef"}, FreeType = {Path = "GlitchyEngine/vendor/freetype"}}
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[Workspace]
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StartupProject = "Sandbox"
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@@ -1,5 +1,5 @@
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FileVersion = 1
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Dependencies = {GlitchLog = "*", corlib = "*", DirectX = "*", ImGui = "*", ImGuiImplWin32 = "*", ImGuiImplDX11 = "*", DirectXTK = "*"}
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Dependencies = {GlitchLog = "*", corlib = "*", DirectX = "*", ImGui = "*", ImGuiImplWin32 = "*", ImGuiImplDX11 = "*", DirectXTK = "*", FreeType = "*"}
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[Project]
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Name = "GlitchyEngine"
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@@ -0,0 +1,334 @@
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using System;
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using FreeType;
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using GlitchyEngine.Math;
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using System.Collections;
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using internal GlitchyEngine.Renderer.Text;
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namespace GlitchyEngine.Renderer.Text
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{
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public class Font
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{
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public class GlyphDescriptor
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{
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//public FT_Face Face;
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public Font Font;
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public FT_UInt GlyphIndex;
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public Int32_3 MapCoord;
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public int32 SizeX, SizeY;
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public FT_Glyph_Metrics Metrics;
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public bool IsBitmap;
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public bool IsCalculated = false;
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public bool IsRendered = false;
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}
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private GraphicsContext _context ~ _.ReleaseRef();
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internal FT_Face _face ~ FreeType.Done_Face(_face);
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private Font _fallback;
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private uint32 _fontSize;
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private int32 _faceIndex;
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private bool _hasColor;
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private Int32_3 _penPos;
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private int32 _lastRowHeight;
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private Texture2D _atlas ~ _?.ReleaseRef();
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private Int32_3 _atlasSize;
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private Dictionary<char32, GlyphDescriptor> _glyphs = new .() ~ DeleteDictionaryAndValues!(_);
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GlyphDescriptor _missingGlyph;
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private SamplerState _sampler ~ _.ReleaseRef();
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/**
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* Gets or sets the Sampler that will be used to sample the spritefont.
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* Setting to null will result in the use of LinearClamp
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*/
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public SamplerState Sampler
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{
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get => _sampler;
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set
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{
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// when value and _sampler are null we don't shortcut because we set _sampler to LinearClamp
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if(_sampler == value && value != null)
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return;
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_sampler?.ReleaseRef();
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_sampler = (value ?? SamplerStateManager.LinearClamp)..AddRef();
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_atlas?.SamplerState = _sampler;
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}
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}
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public this(GraphicsContext context, String fontPath, uint32 fontSize, bool hasColor = true, char32 firstChar = '\0', uint32 charCount = 128, int32 faceIndex = 0)
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{
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_context = context..AddRef();
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// Set default sampler
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Sampler = null;
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FontRenderer.InitLibrary();
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_glyphs.Add('\0', new GlyphDescriptor(){Font = this});
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_fontSize = fontSize;
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_faceIndex = faceIndex;
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_hasColor = hasColor;
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var res = FreeType.New_Face(FontRenderer.Library, fontPath, faceIndex, &_face);
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Log.EngineLogger.Assert(res.Success, scope $"New_Face failed({(int)res}): {res}");
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res = FreeType.Set_Pixel_Sizes(_face, 0, _fontSize);
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Log.EngineLogger.Assert(res.Success, scope $"Set_Pixel_Sizes failed({(int)res}): {res}");
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LoadGlyphs(firstChar, charCount);
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}
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public void LoadGlyphs(char32 firstChar, uint32 charCount)
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{
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ExtendRange(firstChar, firstChar + charCount);
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UpdateAtlas();
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}
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internal GlyphDescriptor GetGlyph(char32 char, bool allowDynamicLoading = true)
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{
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GlyphDescriptor desc;
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if(_glyphs.TryGetValue(char, out desc))
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{
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// if the char is not defined in the current font try to load it from the fallback
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if(desc == null && _fallback != null)
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{
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desc = _fallback.GetGlyph(char, allowDynamicLoading);
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}
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}
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else if(allowDynamicLoading)
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{
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// TODO: make reloading optional
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char32 start = (char >> 4) << 4;
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LoadGlyphs(start, 64);
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desc = GetGlyph(char, false);
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}
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return desc ?? _missingGlyph;
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}
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void ExtendRange(char32 firstChar, char32 rangeEnd)
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{
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// TODO: refactor
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for(char32 char = firstChar; char < rangeEnd; char++)
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{
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GlyphDescriptor desc = new GlyphDescriptor();
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if(_glyphs.TryAdd(char, desc))
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{
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//desc.Face = _face;
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desc.Font = this;
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desc.GlyphIndex = FreeType.Get_Char_Index(_face, char);
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// if the char is not contained by the font we set the desc to null
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if(desc.GlyphIndex == 0)
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{
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delete desc;
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_glyphs[char] = null;
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}
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}
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else
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{
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delete desc;
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}
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}
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}
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void UpdateAtlas()
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{
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DrawAtlas();
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}
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Int32_3 PrepareAtlas()
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{
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const uint32 maxRes = 16384; // D3D11_REQ_TEXTURE2D_U_OR_V_DIMENSION
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const uint32 maxArray = 2048; // D3D11_REQ_TEXTURE2D_ARRAY_AXIS_DIMENSION
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ref Int32_3 pen = ref _penPos;
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ref int32 penLeft = ref _penPos.X;
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ref int32 penTop = ref _penPos.Y;
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ref int32 penArray = ref _penPos.Z;
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ref int32 rowHeight = ref _lastRowHeight;
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int32 atlasWidth = _atlasSize.X;
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int32 atlasHeight = _atlasSize.Y;
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int32 atlasArray = _atlasSize.Z;
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for(let (char, desc) in _glyphs)
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{
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if(desc == null || desc.IsCalculated)
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{
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continue;
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}
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let loadResult = FreeType.Load_Glyph(_face, desc.GlyphIndex, .Color | .TargetNormal);
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if(loadResult.Error)
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{
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Log.EngineLogger.Error($"Failed to load glyph for '{char}'(Char Code:{(uint32)char} | Error {(int)loadResult}): {loadResult}");
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}
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desc.Metrics = _face.glyph.metrics;
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int32 glyphWidth = (desc.Metrics.width / 64) + 1;
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int32 glyphHeight = (desc.Metrics.height / 64) + 1;
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// when size is 0 (1 because we added 1) the glyph has no image
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if(glyphWidth != 1 || glyphHeight != 1)
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{
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int32 glyphRight = penLeft + glyphWidth;
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if(glyphRight > maxRes)
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{
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penLeft = 0;
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penTop += rowHeight;
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rowHeight = 0;
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}
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int32 glyphBottom = penTop + glyphHeight;
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if(glyphBottom > maxRes)
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{
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penLeft = 0;
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penTop = 0;
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rowHeight = 0;
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penArray++;
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}
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if(penArray >= maxArray)
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{
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Log.EngineLogger.Error("Spritefont exceeds maximum texture size.");
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}
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}
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desc.MapCoord = pen;
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desc.SizeX = glyphWidth - 1;
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desc.SizeY = glyphHeight - 1;
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if(desc.GlyphIndex == 0 && _missingGlyph == null)
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{
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_missingGlyph = desc;
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}
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penLeft += glyphWidth;
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if (penLeft > atlasWidth)
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atlasWidth = penLeft;
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if (glyphHeight > rowHeight)
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rowHeight = glyphHeight;
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if (penTop + glyphHeight > atlasHeight)
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atlasHeight = penTop + glyphHeight;
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if (penArray == atlasArray)
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atlasArray++;
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desc.IsCalculated = true;
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}
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return .(atlasWidth, atlasHeight, atlasArray);
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}
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void DrawAtlas()
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{
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Int32_3 oldAtlasSize = _atlasSize;
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_atlasSize = PrepareAtlas();
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if(_atlasSize != oldAtlasSize)
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{
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var oldAtlas = _atlas;
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Texture2DDesc desc;
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desc.Format = .B8G8R8A8_UNorm;
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desc.MipLevels = 1;
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desc.Width = (.)_atlasSize.X;
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desc.Height = (.)_atlasSize.Y;
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desc.ArraySize = (.)_atlasSize.Z;
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desc.CpuAccess = .None;
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desc.Usage = .Default;
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_atlas = new Texture2D(_context, desc);
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_atlas.SamplerState = _sampler;
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if(oldAtlas != null)
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{
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oldAtlas.CopyTo(_atlas);
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oldAtlas.ReleaseRef();
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}
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}
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for(let (char, desc) in _glyphs)
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{
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if(desc == null)
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continue;
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var glyphIndex = desc.GlyphIndex;
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if(desc.IsRendered || glyphIndex == 0 || desc.SizeX == 0 || desc.SizeY == 0)
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{
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continue;
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}
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var loadResult = FreeType.Load_Glyph(_face, glyphIndex, .Color | .Render | .TargetNormal);
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if(loadResult.Error)
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{
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Log.EngineLogger.Error($"Failed to render glyph for '{char}'(Char Code:{(uint32)char} | Error {(int)loadResult}): {loadResult}");
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}
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FT_GlyphSlot glyphSlot = _face.glyph;
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FT_Bitmap bitmap = glyphSlot.bitmap;
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//ResourceBox glyphBox = .((.)desc.MapCoord.X, (.)desc.MapCoord.X, 0,
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// (.)desc.MapCoord.X + (.)desc.SizeX, (.)desc.MapCoord.Y + (.)desc.SizeY, 1);
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if(_face.glyph.format == .Bitmap)
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{
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if(bitmap.pixel_mode == .Gray)
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{
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Color[] pixels = new Color[bitmap.width * bitmap.rows];
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defer delete pixels;
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for(int i < pixels.Count)
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{
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uint8 gray = bitmap.buffer[i];
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pixels[i] = .(gray, gray, gray, gray);
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}
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_atlas.SetData(pixels.Ptr, (.)desc.MapCoord.X, (.)desc.MapCoord.Y,
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(.)desc.SizeX, (.)desc.SizeY, (.)desc.MapCoord.Z);
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}
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else if(bitmap.pixel_mode == .Bgra)
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{
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_atlas.SetData<Color>((.)bitmap.buffer, (.)desc.MapCoord.X, (.)desc.MapCoord.Y,
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(.)desc.SizeX, (.)desc.SizeY, (.)desc.MapCoord.Z);
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desc.IsBitmap = true;
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}
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}
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else
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{
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Runtime.NotImplemented();
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}
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desc.IsRendered = true;
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}
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}
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}
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}
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@@ -0,0 +1,124 @@
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using System;
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using FreeType;
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using System.Diagnostics;
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using GlitchyEngine.Math;
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using System.Collections;
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using internal GlitchyEngine.Renderer.Text;
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namespace GlitchyEngine.Renderer.Text
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{
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public class FontRenderer
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{
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internal static FT_Library Library ~ FreeType.Done_FreeType(_);
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internal static void InitLibrary()
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{
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if(Library == null)
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{
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var res = FreeType.Init_FreeType(&Library);
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Log.EngineLogger.Assert(res.Success, scope $"Init_FreeType failed({(int)res}): {res}");
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}
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}
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private GraphicsContext _context ~ _.ReleaseRef();
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public this(GraphicsContext context)
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{
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FontRenderer.InitLibrary();
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_context = context..AddRef();
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}
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public void DrawText(Renderer2D renderer, Font font, String text, float x, float y, Color fontColor = .White, Color bitmapColor = .White)
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{
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if(text.IsWhiteSpace)
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return;
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// Todo:
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float scale = 1.0f;
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// Space between two baselines
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float linespace = ((font._face.size.metrics.ascender - font._face.size.metrics.descender) >> 6);// + lineGap;
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// The line we are writing on
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float baseline = y + linespace;
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// Where we are writing the next glyph on the line
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float penPosition = x;
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int32 lastLine = 0;
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int32 line = 0;
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List<Texture2D> atlasses = scope .();
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//GlyphDescriptor missingGlyph = font.CharMap.GetValue('\0');
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String.UTF8Enumerator textEnumerator = String.UTF8Enumerator(text, 0, text.Length);
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for(char32 char in textEnumerator)
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{
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if(char == '\n')
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{
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line++;
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continue;
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}
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// number of lines that the cursor moved up or down
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int32 lineDiff = line - lastLine;
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if(lineDiff != 0)
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{
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baseline += linespace * lineDiff;
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// TODO: make carriage return optional?
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penPosition = x;
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lastLine = line;
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}
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// Get glyph from Font
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var glyphDesc = font.GetGlyph(char);
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// This never happens
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if(glyphDesc == null)
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{
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Debug.Break();
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continue;
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}
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// Rectangle on the screen
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Vector4 viewportRect = .(penPosition + (glyphDesc.Metrics.horiBearingX / 64) * scale, baseline - (glyphDesc.Metrics.horiBearingY / 64) * scale, glyphDesc.SizeX * scale, glyphDesc.SizeY * scale);
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// Rectangle on the font atlas
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Vector4 texRect = .(glyphDesc.MapCoord.X, glyphDesc.MapCoord.Y, glyphDesc.SizeX, glyphDesc.SizeY);
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Color glyphColor = glyphDesc.IsBitmap ? bitmapColor : fontColor;
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/*
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if(QueueQuad!(viewportRect, texRect, glyphDesc.MapZ, glyphColor))
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{
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DrawQueue(context);
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}
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*/
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Texture2D atlas = glyphDesc.Font.[Friend]_atlas;
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if(!atlasses.Contains(atlas))
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{
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atlasses.Add(atlas..AddRef());
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}
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Vector2 atlasSize = .(atlas.Width, atlas.Height);
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texRect /= Vector4(atlasSize, atlasSize);
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renderer.Draw(atlas, viewportRect.X, viewportRect.Y, viewportRect.Z, viewportRect.W, glyphColor, 0.0f, texRect);
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||||
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||||
penPosition += (glyphDesc.Metrics.horiAdvance / 64) * scale;
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||||
}
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||||
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renderer.End();
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||||
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||||
for(int i < atlasses.Count)
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{
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||||
atlasses[i].ReleaseRef();
|
||||
}
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||||
}
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||||
}
|
||||
}
|
||||
Vendored
+1
-1
Submodule GlitchyEngine/vendor/directx updated: 7fc4733432...0399d40bf8
Binary file not shown.
@@ -8,6 +8,7 @@ using ImGui;
|
||||
using GlitchyEngine.Renderer;
|
||||
using GlitchyEngine.Math;
|
||||
using GlitchyEngine.World;
|
||||
using GlitchyEngine.Renderer.Text;
|
||||
|
||||
namespace Sandbox
|
||||
{
|
||||
@@ -57,6 +58,8 @@ namespace Sandbox
|
||||
|
||||
Renderer2D Renderer2D ~ delete _;
|
||||
|
||||
Texture2D _testTexture ~ _?.ReleaseRef();
|
||||
|
||||
[AllowAppend]
|
||||
public this() : base("Example")
|
||||
{
|
||||
@@ -97,8 +100,36 @@ namespace Sandbox
|
||||
|
||||
Renderer2D = new Renderer2D(_context, _effectLibrary);
|
||||
//Init2D();
|
||||
|
||||
Texture2DDesc desc = .();
|
||||
desc.Format = .R8G8B8A8_UNorm;
|
||||
desc.Width = 2;
|
||||
desc.Height = 2;
|
||||
desc.ArraySize = 1;
|
||||
desc.CpuAccess = .None;
|
||||
desc.MipLevels = 1;
|
||||
desc.Usage = .Default;
|
||||
|
||||
_testTexture = new Texture2D(_context, desc);
|
||||
|
||||
Color[4] colors = .(
|
||||
.Red, .Green,
|
||||
.Blue, .White);
|
||||
|
||||
_testTexture.SetData<Color>(&colors, 0, 1, 1, 1);
|
||||
//_testTexture.SetData<Color>(&colors, 0, 0, 2, 2);
|
||||
|
||||
fonty = new Font(_context, "C:\\Windows\\Fonts\\arial.ttf", 64, true, 'A', 16);//C:\\Windows\\Fonts\\seguiemj.ttf
|
||||
emojies = new Font(_context, "C:\\Windows\\Fonts\\seguiemj.ttf", 64, true, '😂' - 10, 1);
|
||||
fonty.[Friend]_fallback = emojies;
|
||||
|
||||
fontRenderer = new FontRenderer(_context);
|
||||
}
|
||||
|
||||
Font fonty ~ delete _;
|
||||
Font emojies ~ delete _;
|
||||
FontRenderer fontRenderer ~ delete _;
|
||||
|
||||
VertexLayout layout ~ delete _;
|
||||
|
||||
GeometryBinding quadBinding ~ _?.ReleaseRef();
|
||||
@@ -225,7 +256,8 @@ namespace Sandbox
|
||||
|
||||
_context.SetViewport(_context.SwapChain.BackbufferViewport);
|
||||
|
||||
Renderer2D.Begin(.SortByTexture, .(80, 80));
|
||||
/*
|
||||
Renderer2D.Begin(.FrontToBack, .(80, 80));
|
||||
|
||||
//_opaqueBlendState.Bind();
|
||||
_alphaBlendState.Bind();
|
||||
@@ -253,7 +285,7 @@ namespace Sandbox
|
||||
}
|
||||
}
|
||||
|
||||
Renderer2D.Draw(_texture, 0, 0, 20, 10, .White, 20);
|
||||
Renderer2D.Draw(_ge_logo, 0, 0, 180, 40, .White, 20);
|
||||
|
||||
/*
|
||||
Renderer2D.Draw(_texture, 10, 50, 100, 100, .White);
|
||||
@@ -268,6 +300,13 @@ namespace Sandbox
|
||||
|
||||
//Renderer2D.Draw(_ge_logo, 80, 50, 100, 100, .White);
|
||||
|
||||
Renderer2D.End();
|
||||
*/
|
||||
_alphaBlendState.Bind();
|
||||
Renderer2D.Begin(.FrontToBack, .(_context.SwapChain.Width, _context.SwapChain.Height));
|
||||
|
||||
fontRenderer.DrawText(Renderer2D, fonty, "Hallo Welt, wie geht es dir? 😂😂😂\nMir geht es gut, danke der Nachfrage, wie geht es dir?\nMir geht es hervorragend: Meine Engine kann endlich Text rendern\n und es scheint ganz in ordnung zu sein.", 0, 0);
|
||||
|
||||
Renderer2D.End();
|
||||
}
|
||||
|
||||
@@ -285,17 +324,44 @@ namespace Sandbox
|
||||
|
||||
private bool OnImGuiRender(ImGuiRenderEvent e)
|
||||
{
|
||||
return true;
|
||||
|
||||
ImGui.Begin("Test");
|
||||
|
||||
ImGui.ColorEdit3("Square Color", ref _squareColor0);
|
||||
|
||||
_squareColor1 = ColorRGBA.White - _squareColor0;
|
||||
|
||||
//ImGui.Begin
|
||||
|
||||
//ImGui.Image(fonty.[Friend]_atlas.[Friend]nativeView, .(100, 200));
|
||||
//ImGui.Scrollbar(.X);
|
||||
//ImGui.Image(fonty.[Friend]_atlas.[Friend]nativeView, .(fonty.[Friend]_atlas.Width, fonty.[Friend]_atlas.Height), .(0.0f, 0.0f), .(1.0f, 1.0f), .(1.0f, 1.0f, 1.0f, 1.0f), .(1.0f, 0, 0, 1));
|
||||
|
||||
ImGui.End();
|
||||
|
||||
TextureViewer();
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
float zoom = 1.0f;
|
||||
|
||||
private void TextureViewer()
|
||||
{
|
||||
ImGui.Begin("Texture Viewer");
|
||||
|
||||
ImGui.SliderFloat("Zoom", &zoom, 0.01f, 100.0f);
|
||||
|
||||
ImGui.BeginChild("imageChild", default, true, .HorizontalScrollbar);
|
||||
|
||||
ImGui.Image(fonty.[Friend]_atlas.[Friend]nativeView, .(fonty.[Friend]_atlas.Width * zoom, fonty.[Friend]_atlas.Height * zoom), .(0.0f, 0.0f), .(1.0f, 1.0f), .(1.0f, 1.0f, 1.0f, 1.0f), .(1.0f, 0, 0, 1));
|
||||
|
||||
ImGui.EndChild();
|
||||
|
||||
ImGui.End();
|
||||
}
|
||||
|
||||
private bool OnWindowResize(WindowResizeEvent e)
|
||||
{
|
||||
_depthTarget.ReleaseRef();
|
||||
|
||||
Reference in New Issue
Block a user