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Restructure and reload font

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Krzosa Karol
2024-07-27 11:35:14 +02:00
parent a43fe1789b
commit 03eece4e41
6 changed files with 544 additions and 691 deletions
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26
src/platform/render_opengl.cpp
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@@ -360,3 +360,29 @@ Int GetLineSpacing(Font *font) {
Int result = (Int)(font->ascent - font->descent + font->line_gap);
return result;
}
String FontPath = "C:\\Windows\\Fonts\\consola.ttf";
void ReloadFont(int32_t size) {
size = ClampBottom(2, size);
if (MainFont.texture_id) {
glDeleteTextures(1, &MainFont.texture_id);
Dealloc(&MainFont.glyphs);
MainFont = {};
}
Scratch scratch;
Atlas atlas = CreateAtlas(scratch, {1024, 1024});
MainFont = CreateFont(&atlas, size, FontPath);
{
glCreateTextures(GL_TEXTURE_2D, 1, &atlas.texture_id);
glTextureParameteri(atlas.texture_id, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTextureParameteri(atlas.texture_id, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTextureParameteri(atlas.texture_id, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTextureParameteri(atlas.texture_id, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTextureStorage2D(atlas.texture_id, 1, GL_R8, (GLsizei)atlas.size.x, (GLsizei)atlas.size.y);
glTextureSubImage2D(atlas.texture_id, 0, 0, 0, (GLsizei)atlas.size.x, (GLsizei)atlas.size.y, GL_RED, GL_UNSIGNED_BYTE, atlas.bitmap);
}
MainFont.texture_id = atlas.texture_id;
FontCharSpacing = GetCharSpacing(&MainFont);
FontLineSpacing = GetLineSpacing(&MainFont);
}