thooge/esp32-nmea2000-obp60
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Fix boot loop reimplement font implementation

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This commit is contained in:
Norbert Walter
2026-02-28 18:23:23 +00:00
parent b29d89525a
commit 5a30d7d022
1 changed files with 38 additions and 1 deletions
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lib/obp60task/OBP60Extensions.h
+38 -1
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@@ -132,9 +132,44 @@ public:
lgfx::LGFX_Device::setFont(nullptr);
return;
}
if (font->glyph == nullptr || font->bitmap == nullptr || font->last < font->first) {
lgfx::LGFX_Device::setFont(nullptr);
return;
}
const uint16_t glyphCount = static_cast<uint16_t>(font->last - font->first + 1);
if (glyphCount == 0) {
lgfx::LGFX_Device::setFont(nullptr);
return;
}
if (_adfGlyphCount != glyphCount || _adfGlyphBridge == nullptr) {
if (_adfGlyphBridge != nullptr) {
free(_adfGlyphBridge);
_adfGlyphBridge = nullptr;
_adfGlyphCount = 0;
}
_adfGlyphBridge = static_cast<lgfx::GFXglyph*>(malloc(sizeof(lgfx::GFXglyph) * glyphCount));
if (_adfGlyphBridge == nullptr) {
lgfx::LGFX_Device::setFont(nullptr);
return;
}
_adfGlyphCount = glyphCount;
}
for (uint16_t index = 0; index < glyphCount; ++index) {
_adfGlyphBridge[index].bitmapOffset = font->glyph[index].bitmapOffset;
_adfGlyphBridge[index].width = font->glyph[index].width;
_adfGlyphBridge[index].height = font->glyph[index].height;
_adfGlyphBridge[index].xAdvance = font->glyph[index].xAdvance;
_adfGlyphBridge[index].xOffset = font->glyph[index].xOffset;
_adfGlyphBridge[index].yOffset = font->glyph[index].yOffset;
}
_adfFontBridge = lgfx::GFXfont(
const_cast<uint8_t*>(font->bitmap),
reinterpret_cast<lgfx::GFXglyph*>(const_cast<GFXglyph*>(font->glyph)),
_adfGlyphBridge,
font->first,
font->last,
font->yAdvance
@@ -146,6 +181,8 @@ public:
private:
lgfx::GFXfont _adfFontBridge { nullptr, nullptr, 0, 0, 0 };
lgfx::GFXglyph* _adfGlyphBridge = nullptr;
uint16_t _adfGlyphCount = 0;
lgfx::Panel_ST7796 _panel_instance;
};