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https://github.com/aharabada/glitchy-engine-beef.git
synced 2026-09-05 13:01:52 +00:00
Start of msdf text
This commit is contained in:
Simon Lübeß
@@ -0,0 +1,54 @@
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Texture2D<float3> Texture : register(t0);
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SamplerState Sampler : register(s0);
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cbuffer Constants
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{
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float screenPixelRange = 2;
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}
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struct VS_Input
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{
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float2 Position : POSITION;
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float4x4 Tranform : TRANSFORM;
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float4 Color : COLOR;
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float4 UVTransform : TEXCOORD;
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};
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struct PS_Input
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{
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float4 Position : SV_Position;
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float2 TexCoord : TEXCOORD0;
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float4 Color : COLOR;
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};
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PS_Input VS(VS_Input input)
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{
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PS_Input output;
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output.Position = mul(float4(input.Position, 0.0f, 1.0f), input.Tranform);
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output.TexCoord = input.UVTransform.xy + input.UVTransform.zw * input.Position;
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output.Color = input.Color;
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return output;
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}
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float median(float r, float g, float b) {
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return max(min(r, g), min(max(r, g), b));
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}
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float4 PS(PS_Input input) : SV_Target0
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{
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float3 msd = Texture.Sample(Sampler, input.TexCoord);
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float sd = median(msd.r, msd.g, msd.b);
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float screenPxDistance = screenPixelRange * (sd - 0.5);
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float opacity = clamp(screenPxDistance + 0.5, 0.0, 1.0);
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//color = mix(bgColor, fgColor, opacity);
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//float4 color = lerp(float4(0, 0, 0, 0), input.Color, opacity);
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//return color;
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return float4(input.Color.rgb, opacity * input.Color.a);
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}
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#effect[VS=VS, PS=PS]
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+209
-3
@@ -10,6 +10,7 @@ using GlitchyEngine.Math;
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using GlitchyEngine.World;
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using GlitchyEngine.Renderer.Text;
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using System.IO;
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using msdfgen;
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namespace Sandbox
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{
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@@ -63,6 +64,8 @@ namespace Sandbox
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String testText ~ delete _;
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Effect _msdfEffect ~ _.ReleaseRef();
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[AllowAppend]
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public this() : base("Example")
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{
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@@ -74,6 +77,7 @@ namespace Sandbox
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_effectLibrary.LoadNoRefInc("content\\Shaders\\basicShader.hlsl");
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// Create rasterizer state
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GlitchyEngine.Renderer.RasterizerStateDescription rsDesc = .(.Solid, .Back, true);
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_rasterizerState = new RasterizerState(_context, rsDesc);
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@@ -132,8 +136,184 @@ namespace Sandbox
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// Load test text
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var result = File.ReadAllText("test.txt", testText = new String(), true);
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//Log.EngineLogger.Assert(result)
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_msdfEffect = _effectLibrary.Load("content\\Shaders\\msdfShader.hlsl");
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DoTheThing(fonty.[Friend]_face, 64);
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}
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double F26Dot6ToDouble(uint16 value)
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{
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return (double(value) / 64.0);
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}
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void DoTheThing(FreeType.FT_Face fontFace, double pixelSizeY)
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{
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double unitsPerEm = F26Dot6ToDouble(fontFace.units_per_EM);
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// How much we have to scale the geometry to fit it into our desired pixels
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double geometryScaler = pixelSizeY / unitsPerEm;
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// prepare shape
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double advance = 0;
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var glyphIndex = FreeType.FreeType.Get_Char_Index(fonty.[Friend]_face, 'ß');
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Shape shape;
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msdfgen.LoadGlyph(out shape, &fonty.[Friend]_face, glyphIndex, out advance);
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shape.Normalize();
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var bounds = shape.GetBounds();
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msdfgen.EdgeColoringSimple(shape, 3.0);
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// prepare projection
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double scale = geometryScaler;
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double range = 4.0 / geometryScaler;
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int width;
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int height;
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double translationX;
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double translationY;
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if(bounds.Left < bounds.Right && bounds.Bottom < bounds.Top)
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{
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double l = bounds.Left;
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double r = bounds.Right;
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double b = bounds.Bottom;
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double t = bounds.Top;
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l -= 0.5 * range;
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b -= 0.5 * range;
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r += 0.5 * range;
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t += 0.5 * range;
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// TODO: miter?!
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double w = scale * (r - l);
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double h = scale * (t - b);
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width = (int)Math.Ceiling(w) + 1;
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height = (int)Math.Ceiling(h) + 1;
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translationX = -l + 0.5 * (width - w) / scale;
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translationY = -b + 0.5 * (height - h) / scale;
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}
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else
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{
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width = 0;
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height = 0;
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translationX = 0;
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translationY = 0;
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}
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msdfgen.Projection projection = .();
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projection.ScaleX = scale;
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projection.ScaleY = scale;
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projection.TranslationX = translationX;
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projection.TranslationY = translationY;
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/*
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void GlyphGeometry::wrapBox(double scale, double range, double miterLimit) {
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scale *= geometryScale;
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range /= geometryScale;
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box.range = range;
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box.scale = scale;
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if (bounds.l < bounds.r && bounds.b < bounds.t) {
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double l = bounds.l, b = bounds.b, r = bounds.r, t = bounds.t;
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l -= .5*range, b -= .5*range;
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r += .5*range, t += .5*range;
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if (miterLimit > 0)
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shape.boundMiters(l, b, r, t, .5*range, miterLimit, 1);
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double w = scale*(r-l);
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double h = scale*(t-b);
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box.rect.w = (int) ceil(w)+1;
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box.rect.h = (int) ceil(h)+1;
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box.translate.x = -l+.5*(box.rect.w-w)/scale;
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box.translate.y = -b+.5*(box.rect.h-h)/scale;
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} else {
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box.rect.w = 0, box.rect.h = 0;
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box.translate = msdfgen::Vector2();
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}
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}
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*/
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int x = (int)pixelSizeY;
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int y = (int)pixelSizeY;
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Bitmap<ColorRGB, const 1> bitmap = .((.)x, (.)y);
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MSDFGeneratorConfig config = .();
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msdfgen.GenerateMSDF(*(Bitmap<float, const 3>*)&bitmap, shape, projection, range, config);
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// Save png
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/*
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uint8[] data = new uint8[x * y * 3];
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for(int i = 0; i < x * y * 3; i++)
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{
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float f = bitmap.Pixels[i / 3].Red / 2f + 0.5f;
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float f2 = bitmap.Pixels[i / 3].Green / 2f + 0.5f;
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float f3 = bitmap.Pixels[i / 3].Blue / 2f + 0.5f;
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data[i++] = (uint8)Math.Clamp(256.0f * f, 0, 255);
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data[i++] = (uint8)Math.Clamp(256.0f * f2, 0, 255);
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data[i] = (uint8)Math.Clamp(256.0f * f3, 0, 255);
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}
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// TODO: free shape
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LodePng.LodePng.EncodeFile("test.png", data.Ptr, (.)x, (.)y, .RGB, 8);
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*/
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Texture2DDesc desc;
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desc.Width = (.)x;
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desc.Height = (.)y;
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desc.Format = .R8G8B8A8_SNorm;
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desc.MipLevels = 1;
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desc.Usage = .Immutable;
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desc.CpuAccess = .None;
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desc.ArraySize = 1;
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_dasTestA = new Texture2D(_context, desc);
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int8[] pixels = new int8[x * y * 4];
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int8 ToInt8(float f) => (.)Math.Clamp(127f * f, int8.MinValue, int8.MaxValue);
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//for(int i = 0; i < x * y; i++)
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for(int iy = 0; iy < y; iy++)
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for(int ix = 0; ix < x; ix++)
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{
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ColorRGB pixel = bitmap.Pixels[iy * y + ix];
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float f = pixel.Red;// / 2f + 0.5f;
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float f2 = pixel.Green;// / 2f + 0.5f;
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float f3 = pixel.Blue;// / 2f + 0.5f;
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int index = ((y - iy - 1) * y + ix) * 4;
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pixels[index + 0] = ToInt8(f);
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pixels[index + 1] = ToInt8(f2);
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pixels[index + 2] = ToInt8(f3);
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pixels[index + 3] = 0;
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//pixels[(y - iy - 1) * y + ix] = Color(f, f2, f3);
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}
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_dasTestA.SetData<Color>((.)pixels.Ptr, 0, 0, (.)x, (.)y);
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//_dasTestA.SetData<uint8>(pixelData.Ptr, 0, 0, (.)x, (.)y);
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}
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Texture2D _dasTestA ~ _.ReleaseRef();
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Font fonty ~ _.ReleaseRef();
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VertexLayout layout ~ _?.ReleaseRef();
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@@ -244,7 +424,7 @@ namespace Sandbox
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movement *= (float)(gameTime.FrameTime.TotalSeconds);
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cameraTransform.Position += .(movement, 0);
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Runtime.NotImplemented();
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//Runtime.NotImplemented();
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//cameraTransform.Update();
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}
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@@ -252,6 +432,8 @@ namespace Sandbox
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camera.Aspect = Application.Get().Window.Context.SwapChain.BackbufferViewport.Width /
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Application.Get().Window.Context.SwapChain.BackbufferViewport.Height;
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TransformSystem.Update(_world);
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RenderCommand.Clear(null, .(0.2f, 0.2f, 0.2f));
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_depthTarget..Clear(1.0f, 0, .Depth).Bind();
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@@ -313,12 +495,26 @@ namespace Sandbox
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_alphaBlendState.Bind();
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Renderer2D.Begin(.FrontToBack, .(_context.SwapChain.Width, _context.SwapChain.Height));
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Renderer2D.Draw(null, 0, 0, 502, 502, .Black, 5);
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// Hallo Welt, wie geht es dir? 😂😂😂\nMir geht es gut, danke der Nachfrage. Wie geht es dir?\nMir geht es hervorragend und besser noch: meine Engine kann endlich Text rendern!💕❤\n und es scheint ganz in ordnung zu sein.
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FontRenderer.DrawText(Renderer2D, fonty, testText, 0, 0, .White, .White, 32);
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//FontRenderer.DrawText(Renderer2D, fonty, testText, 0, 0, .White, .White, 32);
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Renderer2D.End();
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Renderer2D.Begin(.FrontToBack, .(_context.SwapChain.Width, _context.SwapChain.Height), 100, _msdfEffect);
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_msdfEffect.Variables["screenPixelRange"].SetData(size / 64f * 4.0f);
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Renderer2D.Draw(_dasTestA, 1, 1, size, size);
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// TODO: SDFs in Font Atlas packen
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Renderer2D.End();
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}
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int32 size = 500;
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ColorRGBA _squareColor0 = ColorRGBA.CornflowerBlue;
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ColorRGBA _squareColor1;
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@@ -333,6 +529,16 @@ namespace Sandbox
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private bool OnImGuiRender(ImGuiRenderEvent e)
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{
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ImGui.Begin("SDF Test");
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ImGui.InputInt("Size", &size);
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float f = (size / 64f * 4.0f);
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ImGui.Text($"SPR: {f}");
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ImGui.End();
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/*
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return true;
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ImGui.Begin("Test");
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@@ -348,7 +554,7 @@ namespace Sandbox
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//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));
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ImGui.End();
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*/
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TextureViewer();
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return false;
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