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text: Fixed atlas finding glyphs of wrong size

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Signed-off-by: Jeremia Dominguez <me@jeremia.dev>
This commit is contained in:
Jeremia Dominguez 2023-10-03 20:08:26 -05:00 • committed by Stephen Gutekanst
parent e661dcaf0a
commit 06f66d7a32
1 changed files with 13 additions and 2 deletions
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15
src/gfx/Text.zig
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@ -83,7 +83,13 @@ const Glyph = extern struct {
text_index: u32,
};
const RegionMap = std.AutoArrayHashMapUnmanaged(u21, mach.Atlas.Region);
const GlyphDetail = struct {
codepoint: u21 = 0,
font: FontRenderer,
// Auto Hashing doesn't work for floats, so we bitcast to integer.
size: u32,
};
const RegionMap = std.AutoArrayHashMapUnmanaged(u21, GlyphDetail);
const Pipeline = struct {
render: *gpu.RenderPipeline,
@ -388,10 +394,15 @@ pub fn machGfxTextUpdated(
var offset_x: f32 = 0.0;
var offset_y: f32 = 0.0;
var utf8 = (try std.unicode.Utf8View.init(text)).iterator();
var glyph_detail = GlyphDetail{
.font = font,
.size = @bitCast(font_size),
};
while (utf8.nextCodepoint()) |codepoint| {
const m = try font.measure(codepoint, font_size * px_density);
glyph_detail.codepoint = codepoint;
if (codepoint != '\n') {
var region = try pipeline.regions.getOrPut(engine.allocator, codepoint);
var region = try pipeline.regions.getOrPut(engine.allocator, glyph_detail);
if (!region.found_existing) {
const glyph = try font.render(codepoint, font_size * px_density);