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Use bit_fields to describe internal break_state

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gingerBill
2025-06-20 09:48:45 +01:00
parent f055d8e714
commit 37fffe78d6
1 changed files with 38 additions and 8 deletions
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46
vendor/kb_text_shape/kb_text_shape_types.odin vendored
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@@ -1819,22 +1819,52 @@ break_state :: struct {
BracketCount: u32,
Flags: break_state_flags,
FlagState: u32, // u8(break_flags)x4
FlagState: bit_field u32 {
_0: u32 | 8, // break_flags
_1: u32 | 8, // break_flags
_2: u32 | 8, // break_flags
_3: u32 | 8, // break_flags
},
PositionOffset2: i16,
PositionOffset3: i16,
WordBreakHistory: u32, // u8x4
WordBreaks: u16, // u4x4
WordUnbreaks: u16, // u4x4
WordBreakHistory: bit_field u32 {
_0: u32 | 8,
_1: u32 | 8,
_2: u32 | 8,
_3: u32 | 8,
},
WordBreaks,
WordUnbreaks: bit_field u16 {
_0: u16 | 4,
_1: u16 | 4,
_2: u16 | 4,
_3: u16 | 4,
},
WordBreak2PositionOffset: i16,
LineBreaks: u64, // u16x4
LineBreaks: bit_field u64 {
_0: u64 | 16,
_1: u64 | 16,
_2: u64 | 16,
_3: u64 | 16,
},
// Instead of staying synchronized with LineBreaks/LineUnbreaks,
// this advances every character always.
// (This is only needed because ZWJ can create an unbreak while simultaneously being ignored.)
LineUnbreaksAsync: u64, // u16x4
LineUnbreaks: u64, // u16x4
LineBreakHistory: u32, // u8(line_break_class)x4
LineUnbreaksAsync,
LineUnbreaks: bit_field u64 {
_0: u64 | 16,
_1: u64 | 16,
_2: u64 | 16,
_3: u64 | 16,
},
LineBreakHistory: bit_field u32 {
_0: u32 | 8, // break_flags
_1: u32 | 8, // break_flags
_2: u32 | 8, // break_flags
_3: u32 | 8, // break_flags
},
LineBreak2PositionOffset: i16,
LineBreak3PositionOffset: i16,