First commit

2025-12-23 21:24:06 +00:00
parent 2a30c0d77b
commit f5dc0ccbc9
52 changed files with 1663 additions and 208 deletions
@@ -0,0 +1,35 @@
+#include "Display/UI/Text/GlyphCache.h"
+#include <stdexcept>
+#include <iostream>
+#include "Display/UI/Text/FontFace.h"
+#include <ft2build.h>
+#include FT_FREETYPE_H
+
+namespace Display::UI::Text
+{
+    GlyphCache::GlyphCache(const FontFace &fontFace) : fontFace(fontFace) {}
+
+    const Glyph &GlyphCache::getGlyph(char c)
+    {
+        FT_Face face = static_cast<FT_Face>(fontFace.getFace());
+        auto it = cache.find(c);
+        if (it != cache.end())
+            return it->second;
+
+        if (!face)
+            throw std::runtime_error("FontFace not initialized!");
+        if (FT_Load_Char(face, c, FT_LOAD_RENDER))
+            throw std::runtime_error("FT_Load_Char failed");
+        FT_GlyphSlot g = face->glyph;
+
+        Glyph glyph;
+        glyph.width = g->bitmap.width;
+        glyph.height = g->bitmap.rows;
+        glyph.bearingX = g->bitmap_left;
+        glyph.bearingY = g->bitmap_top;
+        glyph.advance = g->advance.x >> 6;
+        glyph.buffer.assign(g->bitmap.buffer, g->bitmap.buffer + g->bitmap.width * g->bitmap.rows);
+
+        return cache.emplace(c, std::move(glyph)).first->second;
+    }
+} // namespace Display::UI::Text