i want to remove the font lock

[173619070]

I prefer not to use LOCK_FONTCACHE&UNLOCK_FONTCACHE in the vkvg_fonts. cpp file, because locking will reduce the efficiency of the program, so i think traverse all bitmaps of a font and copy them to texture at one time, for font size, we can use scaling factor for coordinates，just like this:

		// Writing horisontal text
		auto gi = fi->GetGlyphInfo(font_face, text[0]);
		auto trans = glm::vec2{ 0,gi->horisontal_coords.top_left.y };
		location -= trans;//change the baseline

		ret.aabb.top_left = gi->horisontal_coords.top_left * scale + location; //scale to change the font size
		ret.aabb.bottom_right = gi->horisontal_coords.bottom_right * scale + location;

		for (auto c : text) {
			auto gi = fi->GetGlyphInfo(font_face, c);
			AppendBox(location, gi->horisontal_coords, gi->uv_coords, gi->atlas_index);
			location.x += (gi->horisontal_advance + kerning) * scale.x;
		}

and the function of GetGlyphInfo:

const vk2d::vk2d_internal::GlyphInfo *vk2d::vk2d_internal::FontResourceImpl::GetGlyphInfo(
	uint32_t		font_face,
	uint32_t		character
) const
{
	auto & face_info	= face_infos[ font_face ];
	auto & charmap		= face_info.charmap;
	auto glyph_it		= charmap.find( character );
	auto glyph_index	= uint32_t( 0 );
	if( glyph_it != charmap.end() ) {
		glyph_index		= glyph_it->second;
	} else {
		glyph_index		= face_info.fallback_glyph_index;
	}
	return &face_info.glyph_infos[ glyph_index ];
}

The above code comes from https://github.com/Noxagonal/Vulkan2DRenderer

[jpbruyere]

The ideal solution for the font lock would be a reader/writer lock, I may think also of an alternative font provider (selectable on compile, or maybe a runtime option) that will be static with all preloaded glyph and no locking on consume.
You can maybe propose a PR for such a solution with all preloaded glyph, on my side I have some priorities with client (employer) that makes it hard for me to work on that for now.