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Feature: Scalable OpenTTD TrueType font made by Zephyris.

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This uses the normal variant for the small font, not the all-caps version.
This commit is contained in:
Michael Lutz
2023-12-16 01:03:28 +01:00
parent 6e766a2e81
commit 36cf6b1d13
13 changed files with 261 additions and 114 deletions
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98
src/fontcache/freetypefontcache.cpp
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@@ -115,6 +115,42 @@ void FreeTypeFontCache::SetFontSize(FontSize, FT_Face, int pixels)
}
}
static FT_Error LoadFont(FontSize fs, FT_Face face, const char *font_name, uint size)
{
Debug(fontcache, 2, "Requested '{}', using '{} {}'", font_name, face->family_name, face->style_name);
/* Attempt to select the unicode character map */
FT_Error error = FT_Select_Charmap(face, ft_encoding_unicode);
if (error == FT_Err_Ok) goto found_face; // Success
if (error == FT_Err_Invalid_CharMap_Handle) {
/* Try to pick a different character map instead. We default to
* the first map, but platform_id 0 encoding_id 0 should also
* be unicode (strange system...) */
FT_CharMap found = face->charmaps[0];
int i;
for (i = 0; i < face->num_charmaps; i++) {
FT_CharMap charmap = face->charmaps[i];
if (charmap->platform_id == 0 && charmap->encoding_id == 0) {
found = charmap;
}
}
if (found != nullptr) {
error = FT_Set_Charmap(face, found);
if (error == FT_Err_Ok) goto found_face;
}
}
FT_Done_Face(face);
return error;
found_face:
new FreeTypeFontCache(fs, face, size);
return FT_Err_Ok;
}
/**
* Loads the freetype font.
* First type to load the fontname as if it were a path. If that fails,
@@ -157,40 +193,40 @@ void LoadFreeTypeFont(FontSize fs)
if (error != FT_Err_Ok) error = GetFontByFaceName(font_name, &face);
if (error == FT_Err_Ok) {
Debug(fontcache, 2, "Requested '{}', using '{} {}'", font_name, face->family_name, face->style_name);
/* Attempt to select the unicode character map */
error = FT_Select_Charmap(face, ft_encoding_unicode);
if (error == FT_Err_Ok) goto found_face; // Success
if (error == FT_Err_Invalid_CharMap_Handle) {
/* Try to pick a different character map instead. We default to
* the first map, but platform_id 0 encoding_id 0 should also
* be unicode (strange system...) */
FT_CharMap found = face->charmaps[0];
int i;
for (i = 0; i < face->num_charmaps; i++) {
FT_CharMap charmap = face->charmaps[i];
if (charmap->platform_id == 0 && charmap->encoding_id == 0) {
found = charmap;
}
}
if (found != nullptr) {
error = FT_Set_Charmap(face, found);
if (error == FT_Err_Ok) goto found_face;
}
error = LoadFont(fs, face, font_name, settings->size);
if (error != FT_Err_Ok) {
ShowInfo("Unable to use '{}' for {} font, FreeType reported error 0x{:X}, using sprite font instead", font_name, FontSizeToName(fs), error);
}
} else {
FT_Done_Face(face);
}
}
/**
* Load a TrueType font from a file.
* @param fs The font size to load.
* @param file_name Path to the font file.
* @param size Requested font size.
*/
void LoadFreeTypeFont(FontSize fs, const std::string &file_name, uint size)
{
if (_library == nullptr) {
if (FT_Init_FreeType(&_library) != FT_Err_Ok) {
ShowInfo("Unable to initialize FreeType, using sprite fonts instead");
return;
}
Debug(fontcache, 2, "Initialized");
}
FT_Done_Face(face);
ShowInfo("Unable to use '{}' for {} font, FreeType reported error 0x{:X}, using sprite font instead", font_name, FontSizeToName(fs), error);
return;
found_face:
new FreeTypeFontCache(fs, face, settings->size);
FT_Face face = nullptr;
int32_t index = 0;
FT_Error error = FT_New_Face(_library, file_name.c_str(), index, &face);
if (error == FT_Err_Ok) {
LoadFont(fs, face, file_name.c_str(), size);
} else {
FT_Done_Face(face);
}
}