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Fixes to shape cache and atlas region math

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This commit is contained in:
Edward R. Gonzalez
2024-06-16 08:56:06 -04:00
parent fd3bb65aaf
commit 964c6c852d
4 changed files with 8 additions and 7 deletions
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9
code/font/VEFontCache/VEFontCache.odin
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@@ -156,8 +156,8 @@ eval_point_on_bezier4 :: proc( p0, p1, p2, p3 : Vec2, alpha : f32 ) -> Vec2
screenspace_x_form :: proc( position, scale : ^Vec2, width, height : f32 ) {
scale.x = (scale.x / width ) * 2.0
scale.y = (scale.y / height) * 2.0
position.x = position.x * (2.0 / width) - 1.0
position.y = position.y * (2.0 / width) - 1.0
position.x = position.x * (2.0 / width) - 1.0
position.y = position.y * (2.0 / height) - 1.0
}
textspace_x_form :: proc( position, scale : ^Vec2, width, height : f32 ) {
@@ -310,7 +310,7 @@ init :: proc( ctx : ^Context, parser_kind : ParserKind,
LRU_init( & shape_cache.state, shape_cache_params.capacity )
shape_cache.storage, error = make( Array(ShapedText), u64(shape_cache_params.reserve_length) )
shape_cache.storage, error = make( Array(ShapedText), u64(shape_cache_params.capacity) )
assert(error == .None, "VEFontCache.init : Failed to allocate shape_cache.storage")
for idx : u32 = 0; idx < shape_cache_params.capacity; idx += 1 {
@@ -716,6 +716,7 @@ shape_text_cached :: proc( ctx : ^Context, font : FontID, text_utf8 : string ) -
if shape_cache.next_cache_id < i32(state.capacity) {
shape_cache_idx = shape_cache.next_cache_id
LRU_put( state, hash, shape_cache_idx )
shape_cache.next_cache_id += 1
}
else
{
@@ -798,6 +799,6 @@ shape_text_uncached :: proc( ctx : ^Context, font : FontID, output : ^ShapedText
prev_codepoint = codepoint
}
output.end_cursor_pos = position
// output.end_cursor_pos = position
}
}

2
code/font/VEFontCache/atlas.odin
View File

@@ -140,7 +140,7 @@ decide_codepoint_region :: proc( ctx : ^Context, entry : ^Entry, glyph_index : G
region_kind = .A
region = & atlas.region_a
}
else if bounds_width_scaled <= atlas.region_a.width && bounds_height_scaled <= atlas.region_a.height
else if bounds_width_scaled <= atlas.region_b.width && bounds_height_scaled <= atlas.region_b.height
{
// Region B for tall glyphs. These are good for things such as european alphabets.
region_kind = .B