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make atlas packer ASCII only for now

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Matthew 2025-08-17 13:17:46 +10:00
parent 38e4e44b4d
commit c0d9de9c4e
1 changed files with 12 additions and 11 deletions
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23
fonts.d
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@ -114,11 +114,13 @@ CreateAtlas(Arena* arena, FontFace font, f32 size, u32 dimension)
u32 current_h = 0; u32 current_h = 0;
u32 count = 0; u32 count = 0;
FT_UInt index; foreach(FT_ULong char_code; 0 .. 0x7F)
FT_ULong char_code = FT_Get_First_Char(font, &index);
while (index != 0)
{ {
FT_Load_Char(font, char_code, cast(FT_Int32)FT_LOAD_RENDER); FT_Error res = FT_Load_Char(font, char_code, cast(FT_Int32)FT_LOAD_RENDER);
if (res != 0)
{
continue;
}
u32 bmp_w = font.glyph.bitmap.width; u32 bmp_w = font.glyph.bitmap.width;
u32 bmp_h = font.glyph.bitmap.rows; u32 bmp_h = font.glyph.bitmap.rows;
@ -133,8 +135,6 @@ CreateAtlas(Arena* arena, FontFace font, f32 size, u32 dimension)
max_w += bmp_w; max_w += bmp_w;
current_h = bmp_h > current_h ? bmp_h : current_h; current_h = bmp_h > current_h ? bmp_h : current_h;
count += 1; count += 1;
char_code = FT_Get_Next_Char(font, char_code, &index);
} }
atlas.atlas.glyphs = AllocArray!(Glyph)(arena, count); atlas.atlas.glyphs = AllocArray!(Glyph)(arena, count);
@ -147,10 +147,13 @@ CreateAtlas(Arena* arena, FontFace font, f32 size, u32 dimension)
u32 font_w = font.size.metrics.x_ppem; u32 font_w = font.size.metrics.x_ppem;
u32 font_h = font.size.metrics.y_ppem; u32 font_h = font.size.metrics.y_ppem;
char_code = FT_Get_First_Char(font, &index); foreach(FT_ULong char_code; 0 .. 0x7F)
while (index != 0)
{ {
FT_Load_Char(font, char_code, cast(FT_Int32)FT_LOAD_RENDER); FT_Error res = FT_Load_Char(font, char_code, cast(FT_Int32)FT_LOAD_RENDER);
if (res != 0)
{
continue;
}
FT_GlyphSlot glyph = font.glyph; FT_GlyphSlot glyph = font.glyph;
FT_Bitmap* bmp = &font.glyph.bitmap; FT_Bitmap* bmp = &font.glyph.bitmap;
@ -196,8 +199,6 @@ CreateAtlas(Arena* arena, FontFace font, f32 size, u32 dimension)
max_w += bmp.width; max_w += bmp.width;
current_h = bmp.rows > current_h ? bmp.rows : current_h; current_h = bmp.rows > current_h ? bmp.rows : current_h;
char_code = FT_Get_Next_Char(font, char_code, &index);
count += 1; count += 1;
} }