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Fix issue Minetest crash when custom font path is not exist

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We try to use default fallback for both mono and main font when custom font path is not exist. This way, if Minetest is not corrupted, we could avoid crash.
This commit is contained in:
Muhammad Rifqi Priyo Susanto 2017-06-03 09:51:48 +07:00 • committed by sfan5
parent d693f95fc3
commit 9526c68699
3 changed files with 100 additions and 15 deletions
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68
src/fontengine.cpp
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@ -332,32 +332,70 @@ void FontEngine::initFont(unsigned int basesize, FontMode mode)
font_path.c_str(), size, true, true, font_shadow,
font_shadow_alpha);
if (font != NULL) {
if (font) {
m_font_cache[mode][basesize] = font;
return;
}
// try fallback font
errorstream << "FontEngine: failed to load: " << font_path << ", trying to fall back "
"to fallback font" << std::endl;
if (font_config_prefix == "mono_") {
const std::string &mono_font_path = m_settings->getDefault("mono_font_path");
font_path = g_settings->get(font_config_prefix + "fallback_font_path");
if (font_path != mono_font_path) {
// try original mono font
errorstream << "FontEngine: failed to load custom mono "
"font: " << font_path << ", trying to fall back to "
"original mono font" << std::endl;
font = gui::CGUITTFont::createTTFont(m_env,
font_path.c_str(), size, true, true, font_shadow,
font_shadow_alpha);
font = gui::CGUITTFont::createTTFont(m_env,
mono_font_path.c_str(), size, true, true,
font_shadow, font_shadow_alpha);
if (font != NULL) {
m_font_cache[mode][basesize] = font;
return;
if (font) {
m_font_cache[mode][basesize] = font;
return;
}
}
} else {
// try fallback font
errorstream << "FontEngine: failed to load: " << font_path <<
", trying to fall back to fallback font" << std::endl;
font_path = g_settings->get(font_config_prefix + "fallback_font_path");
font = gui::CGUITTFont::createTTFont(m_env,
font_path.c_str(), size, true, true, font_shadow,
font_shadow_alpha);
if (font) {
m_font_cache[mode][basesize] = font;
return;
}
const std::string &fallback_font_path = m_settings->getDefault("fallback_font_path");
if (font_path != fallback_font_path) {
// try original fallback font
errorstream << "FontEngine: failed to load custom fallback "
"font: " << font_path << ", trying to fall back to "
"original fallback font" << std::endl;
font = gui::CGUITTFont::createTTFont(m_env,
fallback_font_path.c_str(), size, true, true,
font_shadow, font_shadow_alpha);
if (font) {
m_font_cache[mode][basesize] = font;
return;
}
}
}
// give up
errorstream << "FontEngine: failed to load freetype font: "
<< font_path << std::endl;
errorstream << "minetest can not continue without a valid font. Please correct "
"the 'font_path' setting or install the font file in the proper "
"location" << std::endl;
errorstream << "minetest can not continue without a valid font. "
"Please correct the 'font_path' setting or install the font "
"file in the proper location" << std::endl;
abort();
}
#endif
@ -459,7 +497,7 @@ void FontEngine::initSimpleFont(unsigned int basesize, FontMode mode)
}
}
if (font != NULL) {
if (font) {
font->grab();
m_font_cache[mode][basesize] = font;
}