664 lines
21 KiB
Rust
664 lines
21 KiB
Rust
// THIS FILE IS AUTOGENERATED.
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// Any changes to this file will be overwritten.
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// For more information about how codegen works, see font-codegen/README.md
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#[allow(unused_imports)]
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use crate::codegen_prelude::*;
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/// [CPAL (Color Palette Table)](https://learn.microsoft.com/en-us/typography/opentype/spec/cpal#palette-table-header) table
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#[derive(Debug, Clone, Copy)]
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#[doc(hidden)]
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pub struct CpalMarker {
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color_record_indices_byte_len: usize,
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palette_types_array_offset_byte_start: Option<usize>,
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palette_labels_array_offset_byte_start: Option<usize>,
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palette_entry_labels_array_offset_byte_start: Option<usize>,
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}
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impl CpalMarker {
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pub fn version_byte_range(&self) -> Range<usize> {
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let start = 0;
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start..start + u16::RAW_BYTE_LEN
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}
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pub fn num_palette_entries_byte_range(&self) -> Range<usize> {
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let start = self.version_byte_range().end;
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start..start + u16::RAW_BYTE_LEN
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}
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pub fn num_palettes_byte_range(&self) -> Range<usize> {
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let start = self.num_palette_entries_byte_range().end;
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start..start + u16::RAW_BYTE_LEN
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}
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pub fn num_color_records_byte_range(&self) -> Range<usize> {
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let start = self.num_palettes_byte_range().end;
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start..start + u16::RAW_BYTE_LEN
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}
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pub fn color_records_array_offset_byte_range(&self) -> Range<usize> {
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let start = self.num_color_records_byte_range().end;
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start..start + Offset32::RAW_BYTE_LEN
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}
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pub fn color_record_indices_byte_range(&self) -> Range<usize> {
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let start = self.color_records_array_offset_byte_range().end;
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start..start + self.color_record_indices_byte_len
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}
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pub fn palette_types_array_offset_byte_range(&self) -> Option<Range<usize>> {
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let start = self.palette_types_array_offset_byte_start?;
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Some(start..start + Offset32::RAW_BYTE_LEN)
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}
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pub fn palette_labels_array_offset_byte_range(&self) -> Option<Range<usize>> {
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let start = self.palette_labels_array_offset_byte_start?;
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Some(start..start + Offset32::RAW_BYTE_LEN)
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}
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pub fn palette_entry_labels_array_offset_byte_range(&self) -> Option<Range<usize>> {
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let start = self.palette_entry_labels_array_offset_byte_start?;
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Some(start..start + Offset32::RAW_BYTE_LEN)
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}
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}
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impl MinByteRange for CpalMarker {
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fn min_byte_range(&self) -> Range<usize> {
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0..self.color_record_indices_byte_range().end
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}
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}
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impl TopLevelTable for Cpal<'_> {
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/// `CPAL`
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const TAG: Tag = Tag::new(b"CPAL");
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}
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impl<'a> FontRead<'a> for Cpal<'a> {
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fn read(data: FontData<'a>) -> Result<Self, ReadError> {
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let mut cursor = data.cursor();
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let version: u16 = cursor.read()?;
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cursor.advance::<u16>();
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let num_palettes: u16 = cursor.read()?;
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cursor.advance::<u16>();
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cursor.advance::<Offset32>();
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let color_record_indices_byte_len = (num_palettes as usize)
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.checked_mul(u16::RAW_BYTE_LEN)
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.ok_or(ReadError::OutOfBounds)?;
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cursor.advance_by(color_record_indices_byte_len);
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let palette_types_array_offset_byte_start = version
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.compatible(1u16)
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.then(|| cursor.position())
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.transpose()?;
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version
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.compatible(1u16)
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.then(|| cursor.advance::<Offset32>());
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let palette_labels_array_offset_byte_start = version
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.compatible(1u16)
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.then(|| cursor.position())
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.transpose()?;
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version
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.compatible(1u16)
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.then(|| cursor.advance::<Offset32>());
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let palette_entry_labels_array_offset_byte_start = version
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.compatible(1u16)
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.then(|| cursor.position())
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.transpose()?;
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version
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.compatible(1u16)
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.then(|| cursor.advance::<Offset32>());
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cursor.finish(CpalMarker {
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color_record_indices_byte_len,
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palette_types_array_offset_byte_start,
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palette_labels_array_offset_byte_start,
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palette_entry_labels_array_offset_byte_start,
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})
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}
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}
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/// [CPAL (Color Palette Table)](https://learn.microsoft.com/en-us/typography/opentype/spec/cpal#palette-table-header) table
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pub type Cpal<'a> = TableRef<'a, CpalMarker>;
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#[allow(clippy::needless_lifetimes)]
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impl<'a> Cpal<'a> {
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/// Table version number (=0).
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pub fn version(&self) -> u16 {
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let range = self.shape.version_byte_range();
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self.data.read_at(range.start).unwrap()
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}
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/// Number of palette entries in each palette.
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pub fn num_palette_entries(&self) -> u16 {
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let range = self.shape.num_palette_entries_byte_range();
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self.data.read_at(range.start).unwrap()
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}
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/// Number of palettes in the table.
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pub fn num_palettes(&self) -> u16 {
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let range = self.shape.num_palettes_byte_range();
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self.data.read_at(range.start).unwrap()
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}
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/// Total number of color records, combined for all palettes.
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pub fn num_color_records(&self) -> u16 {
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let range = self.shape.num_color_records_byte_range();
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self.data.read_at(range.start).unwrap()
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}
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/// Offset from the beginning of CPAL table to the first
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/// ColorRecord.
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pub fn color_records_array_offset(&self) -> Nullable<Offset32> {
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let range = self.shape.color_records_array_offset_byte_range();
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self.data.read_at(range.start).unwrap()
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}
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/// Attempt to resolve [`color_records_array_offset`][Self::color_records_array_offset].
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pub fn color_records_array(&self) -> Option<Result<&'a [ColorRecord], ReadError>> {
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let data = self.data;
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let args = self.num_color_records();
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self.color_records_array_offset()
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.resolve_with_args(data, &args)
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}
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/// Index of each palette’s first color record in the combined
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/// color record array.
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pub fn color_record_indices(&self) -> &'a [BigEndian<u16>] {
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let range = self.shape.color_record_indices_byte_range();
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self.data.read_array(range).unwrap()
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}
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/// Offset from the beginning of CPAL table to the [Palette Types Array][].
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///
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/// This is an array of 32-bit flag fields that describe properties of each palette.
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///
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/// [Palette Types Array]: https://learn.microsoft.com/en-us/typography/opentype/spec/cpal#palette-type-array
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pub fn palette_types_array_offset(&self) -> Option<Nullable<Offset32>> {
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let range = self.shape.palette_types_array_offset_byte_range()?;
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Some(self.data.read_at(range.start).unwrap())
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}
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/// Attempt to resolve [`palette_types_array_offset`][Self::palette_types_array_offset].
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pub fn palette_types_array(&self) -> Option<Result<&'a [BigEndian<PaletteType>], ReadError>> {
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let data = self.data;
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let args = self.num_palettes();
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self.palette_types_array_offset()
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.map(|x| x.resolve_with_args(data, &args))?
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}
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/// Offset from the beginning of CPAL table to the [Palette Labels Array][].
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///
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/// This is an array of 'name' table IDs (typically in the font-specific name
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/// ID range) that specify user interface strings associated with each palette.
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/// Use 0xFFFF if no name ID is provided for a palette.
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///
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/// [Palette Labels Array]: https://learn.microsoft.com/en-us/typography/opentype/spec/cpal#palette-labels-array
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pub fn palette_labels_array_offset(&self) -> Option<Nullable<Offset32>> {
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let range = self.shape.palette_labels_array_offset_byte_range()?;
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Some(self.data.read_at(range.start).unwrap())
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}
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/// Attempt to resolve [`palette_labels_array_offset`][Self::palette_labels_array_offset].
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pub fn palette_labels_array(&self) -> Option<Result<&'a [BigEndian<u16>], ReadError>> {
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let data = self.data;
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let args = self.num_palettes();
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self.palette_labels_array_offset()
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.map(|x| x.resolve_with_args(data, &args))?
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}
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/// Offset from the beginning of CPAL table to the [Palette Entry Labels Array][].
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///
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/// This is an array of 'name' table IDs (typically in the font-specific name
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/// ID range) that specify user interface strings associated with each palette
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/// entry, e.g. “Outline”, “Fill”. This set of palette entry labels applies
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/// to all palettes in the font. Use 0xFFFF if no name ID is provided for a
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/// palette entry.
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///
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/// [Palette Entry Labels Array]: https://learn.microsoft.com/en-us/typography/opentype/spec/cpal#palette-entry-label-array
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pub fn palette_entry_labels_array_offset(&self) -> Option<Nullable<Offset32>> {
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let range = self.shape.palette_entry_labels_array_offset_byte_range()?;
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Some(self.data.read_at(range.start).unwrap())
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}
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/// Attempt to resolve [`palette_entry_labels_array_offset`][Self::palette_entry_labels_array_offset].
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pub fn palette_entry_labels_array(&self) -> Option<Result<&'a [BigEndian<NameId>], ReadError>> {
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let data = self.data;
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let args = self.num_palette_entries();
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self.palette_entry_labels_array_offset()
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.map(|x| x.resolve_with_args(data, &args))?
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}
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}
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#[cfg(feature = "experimental_traverse")]
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impl<'a> SomeTable<'a> for Cpal<'a> {
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fn type_name(&self) -> &str {
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"Cpal"
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}
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fn get_field(&self, idx: usize) -> Option<Field<'a>> {
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let version = self.version();
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match idx {
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0usize => Some(Field::new("version", self.version())),
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1usize => Some(Field::new(
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"num_palette_entries",
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self.num_palette_entries(),
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)),
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2usize => Some(Field::new("num_palettes", self.num_palettes())),
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3usize => Some(Field::new("num_color_records", self.num_color_records())),
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4usize => Some(Field::new(
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"color_records_array_offset",
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traversal::FieldType::offset_to_array_of_records(
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self.color_records_array_offset(),
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self.color_records_array(),
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stringify!(ColorRecord),
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self.offset_data(),
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),
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)),
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5usize => Some(Field::new(
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"color_record_indices",
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self.color_record_indices(),
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)),
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6usize if version.compatible(1u16) => Some(Field::new(
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"palette_types_array_offset",
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FieldType::offset_to_array_of_scalars(
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self.palette_types_array_offset().unwrap(),
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self.palette_types_array(),
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),
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)),
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7usize if version.compatible(1u16) => Some(Field::new(
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"palette_labels_array_offset",
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FieldType::offset_to_array_of_scalars(
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self.palette_labels_array_offset().unwrap(),
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self.palette_labels_array(),
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),
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)),
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8usize if version.compatible(1u16) => Some(Field::new(
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"palette_entry_labels_array_offset",
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FieldType::offset_to_array_of_scalars(
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self.palette_entry_labels_array_offset().unwrap(),
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self.palette_entry_labels_array(),
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),
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)),
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_ => None,
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}
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}
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}
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#[cfg(feature = "experimental_traverse")]
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#[allow(clippy::needless_lifetimes)]
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impl<'a> std::fmt::Debug for Cpal<'a> {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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(self as &dyn SomeTable<'a>).fmt(f)
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}
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}
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/// The [PaletteType](https://learn.microsoft.com/en-us/typography/opentype/spec/cpal#palette-type-array) flags.
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#[derive(Clone, Copy, Default, PartialEq, Eq, PartialOrd, Ord, Hash, bytemuck :: AnyBitPattern)]
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#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
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#[repr(transparent)]
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pub struct PaletteType {
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bits: u32,
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}
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impl PaletteType {
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/// Bit 0: palette is appropriate to use when displaying the font on a light background such as white.
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pub const USABLE_WITH_LIGHT_BACKGROUND: Self = Self { bits: 0x0001 };
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/// Bit 1: palette is appropriate to use when displaying the font on a dark background such as black.
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pub const USABLE_WITH_DARK_BACKGROUND: Self = Self { bits: 0x0002 };
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}
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impl PaletteType {
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/// Returns an empty set of flags.
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#[inline]
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pub const fn empty() -> Self {
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Self { bits: 0 }
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}
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/// Returns the set containing all flags.
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#[inline]
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pub const fn all() -> Self {
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Self {
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bits: Self::USABLE_WITH_LIGHT_BACKGROUND.bits | Self::USABLE_WITH_DARK_BACKGROUND.bits,
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}
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}
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/// Returns the raw value of the flags currently stored.
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#[inline]
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pub const fn bits(&self) -> u32 {
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self.bits
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}
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/// Convert from underlying bit representation, unless that
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/// representation contains bits that do not correspond to a flag.
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#[inline]
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pub const fn from_bits(bits: u32) -> Option<Self> {
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if (bits & !Self::all().bits()) == 0 {
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Some(Self { bits })
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} else {
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None
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}
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}
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/// Convert from underlying bit representation, dropping any bits
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/// that do not correspond to flags.
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#[inline]
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pub const fn from_bits_truncate(bits: u32) -> Self {
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Self {
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bits: bits & Self::all().bits,
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}
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}
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/// Returns `true` if no flags are currently stored.
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#[inline]
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pub const fn is_empty(&self) -> bool {
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self.bits() == Self::empty().bits()
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}
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/// Returns `true` if there are flags common to both `self` and `other`.
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#[inline]
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pub const fn intersects(&self, other: Self) -> bool {
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!(Self {
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bits: self.bits & other.bits,
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})
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.is_empty()
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}
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/// Returns `true` if all of the flags in `other` are contained within `self`.
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#[inline]
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pub const fn contains(&self, other: Self) -> bool {
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(self.bits & other.bits) == other.bits
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}
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/// Inserts the specified flags in-place.
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#[inline]
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pub fn insert(&mut self, other: Self) {
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self.bits |= other.bits;
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}
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/// Removes the specified flags in-place.
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#[inline]
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pub fn remove(&mut self, other: Self) {
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self.bits &= !other.bits;
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}
|
||
|
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/// Toggles the specified flags in-place.
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#[inline]
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pub fn toggle(&mut self, other: Self) {
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self.bits ^= other.bits;
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}
|
||
|
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/// Returns the intersection between the flags in `self` and
|
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/// `other`.
|
||
///
|
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/// Specifically, the returned set contains only the flags which are
|
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/// present in *both* `self` *and* `other`.
|
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///
|
||
/// This is equivalent to using the `&` operator (e.g.
|
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/// [`ops::BitAnd`]), as in `flags & other`.
|
||
///
|
||
/// [`ops::BitAnd`]: https://doc.rust-lang.org/std/ops/trait.BitAnd.html
|
||
#[inline]
|
||
#[must_use]
|
||
pub const fn intersection(self, other: Self) -> Self {
|
||
Self {
|
||
bits: self.bits & other.bits,
|
||
}
|
||
}
|
||
|
||
/// Returns the union of between the flags in `self` and `other`.
|
||
///
|
||
/// Specifically, the returned set contains all flags which are
|
||
/// present in *either* `self` *or* `other`, including any which are
|
||
/// present in both.
|
||
///
|
||
/// This is equivalent to using the `|` operator (e.g.
|
||
/// [`ops::BitOr`]), as in `flags | other`.
|
||
///
|
||
/// [`ops::BitOr`]: https://doc.rust-lang.org/std/ops/trait.BitOr.html
|
||
#[inline]
|
||
#[must_use]
|
||
pub const fn union(self, other: Self) -> Self {
|
||
Self {
|
||
bits: self.bits | other.bits,
|
||
}
|
||
}
|
||
|
||
/// Returns the difference between the flags in `self` and `other`.
|
||
///
|
||
/// Specifically, the returned set contains all flags present in
|
||
/// `self`, except for the ones present in `other`.
|
||
///
|
||
/// It is also conceptually equivalent to the "bit-clear" operation:
|
||
/// `flags & !other` (and this syntax is also supported).
|
||
///
|
||
/// This is equivalent to using the `-` operator (e.g.
|
||
/// [`ops::Sub`]), as in `flags - other`.
|
||
///
|
||
/// [`ops::Sub`]: https://doc.rust-lang.org/std/ops/trait.Sub.html
|
||
#[inline]
|
||
#[must_use]
|
||
pub const fn difference(self, other: Self) -> Self {
|
||
Self {
|
||
bits: self.bits & !other.bits,
|
||
}
|
||
}
|
||
}
|
||
|
||
impl std::ops::BitOr for PaletteType {
|
||
type Output = Self;
|
||
|
||
/// Returns the union of the two sets of flags.
|
||
#[inline]
|
||
fn bitor(self, other: PaletteType) -> Self {
|
||
Self {
|
||
bits: self.bits | other.bits,
|
||
}
|
||
}
|
||
}
|
||
|
||
impl std::ops::BitOrAssign for PaletteType {
|
||
/// Adds the set of flags.
|
||
#[inline]
|
||
fn bitor_assign(&mut self, other: Self) {
|
||
self.bits |= other.bits;
|
||
}
|
||
}
|
||
|
||
impl std::ops::BitXor for PaletteType {
|
||
type Output = Self;
|
||
|
||
/// Returns the left flags, but with all the right flags toggled.
|
||
#[inline]
|
||
fn bitxor(self, other: Self) -> Self {
|
||
Self {
|
||
bits: self.bits ^ other.bits,
|
||
}
|
||
}
|
||
}
|
||
|
||
impl std::ops::BitXorAssign for PaletteType {
|
||
/// Toggles the set of flags.
|
||
#[inline]
|
||
fn bitxor_assign(&mut self, other: Self) {
|
||
self.bits ^= other.bits;
|
||
}
|
||
}
|
||
|
||
impl std::ops::BitAnd for PaletteType {
|
||
type Output = Self;
|
||
|
||
/// Returns the intersection between the two sets of flags.
|
||
#[inline]
|
||
fn bitand(self, other: Self) -> Self {
|
||
Self {
|
||
bits: self.bits & other.bits,
|
||
}
|
||
}
|
||
}
|
||
|
||
impl std::ops::BitAndAssign for PaletteType {
|
||
/// Disables all flags disabled in the set.
|
||
#[inline]
|
||
fn bitand_assign(&mut self, other: Self) {
|
||
self.bits &= other.bits;
|
||
}
|
||
}
|
||
|
||
impl std::ops::Sub for PaletteType {
|
||
type Output = Self;
|
||
|
||
/// Returns the set difference of the two sets of flags.
|
||
#[inline]
|
||
fn sub(self, other: Self) -> Self {
|
||
Self {
|
||
bits: self.bits & !other.bits,
|
||
}
|
||
}
|
||
}
|
||
|
||
impl std::ops::SubAssign for PaletteType {
|
||
/// Disables all flags enabled in the set.
|
||
#[inline]
|
||
fn sub_assign(&mut self, other: Self) {
|
||
self.bits &= !other.bits;
|
||
}
|
||
}
|
||
|
||
impl std::ops::Not for PaletteType {
|
||
type Output = Self;
|
||
|
||
/// Returns the complement of this set of flags.
|
||
#[inline]
|
||
fn not(self) -> Self {
|
||
Self { bits: !self.bits } & Self::all()
|
||
}
|
||
}
|
||
|
||
impl std::fmt::Debug for PaletteType {
|
||
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
|
||
let members: &[(&str, Self)] = &[
|
||
(
|
||
"USABLE_WITH_LIGHT_BACKGROUND",
|
||
Self::USABLE_WITH_LIGHT_BACKGROUND,
|
||
),
|
||
(
|
||
"USABLE_WITH_DARK_BACKGROUND",
|
||
Self::USABLE_WITH_DARK_BACKGROUND,
|
||
),
|
||
];
|
||
let mut first = true;
|
||
for (name, value) in members {
|
||
if self.contains(*value) {
|
||
if !first {
|
||
f.write_str(" | ")?;
|
||
}
|
||
first = false;
|
||
f.write_str(name)?;
|
||
}
|
||
}
|
||
if first {
|
||
f.write_str("(empty)")?;
|
||
}
|
||
Ok(())
|
||
}
|
||
}
|
||
|
||
impl std::fmt::Binary for PaletteType {
|
||
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
|
||
std::fmt::Binary::fmt(&self.bits, f)
|
||
}
|
||
}
|
||
|
||
impl std::fmt::Octal for PaletteType {
|
||
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
|
||
std::fmt::Octal::fmt(&self.bits, f)
|
||
}
|
||
}
|
||
|
||
impl std::fmt::LowerHex for PaletteType {
|
||
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
|
||
std::fmt::LowerHex::fmt(&self.bits, f)
|
||
}
|
||
}
|
||
|
||
impl std::fmt::UpperHex for PaletteType {
|
||
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
|
||
std::fmt::UpperHex::fmt(&self.bits, f)
|
||
}
|
||
}
|
||
|
||
impl font_types::Scalar for PaletteType {
|
||
type Raw = <u32 as font_types::Scalar>::Raw;
|
||
fn to_raw(self) -> Self::Raw {
|
||
self.bits().to_raw()
|
||
}
|
||
fn from_raw(raw: Self::Raw) -> Self {
|
||
let t = <u32>::from_raw(raw);
|
||
Self::from_bits_truncate(t)
|
||
}
|
||
}
|
||
|
||
#[cfg(feature = "experimental_traverse")]
|
||
impl<'a> From<PaletteType> for FieldType<'a> {
|
||
fn from(src: PaletteType) -> FieldType<'a> {
|
||
src.bits().into()
|
||
}
|
||
}
|
||
|
||
/// [CPAL (Color Record)](https://learn.microsoft.com/en-us/typography/opentype/spec/cpal#palette-entries-and-color-records) record
|
||
#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Copy, bytemuck :: AnyBitPattern)]
|
||
#[repr(C)]
|
||
#[repr(packed)]
|
||
pub struct ColorRecord {
|
||
/// Blue value (B0).
|
||
pub blue: u8,
|
||
/// Green value (B1).
|
||
pub green: u8,
|
||
/// Red value (B2).
|
||
pub red: u8,
|
||
/// Alpha value (B3).
|
||
pub alpha: u8,
|
||
}
|
||
|
||
impl ColorRecord {
|
||
/// Blue value (B0).
|
||
pub fn blue(&self) -> u8 {
|
||
self.blue
|
||
}
|
||
|
||
/// Green value (B1).
|
||
pub fn green(&self) -> u8 {
|
||
self.green
|
||
}
|
||
|
||
/// Red value (B2).
|
||
pub fn red(&self) -> u8 {
|
||
self.red
|
||
}
|
||
|
||
/// Alpha value (B3).
|
||
pub fn alpha(&self) -> u8 {
|
||
self.alpha
|
||
}
|
||
}
|
||
|
||
impl FixedSize for ColorRecord {
|
||
const RAW_BYTE_LEN: usize =
|
||
u8::RAW_BYTE_LEN + u8::RAW_BYTE_LEN + u8::RAW_BYTE_LEN + u8::RAW_BYTE_LEN;
|
||
}
|
||
|
||
#[cfg(feature = "experimental_traverse")]
|
||
impl<'a> SomeRecord<'a> for ColorRecord {
|
||
fn traverse(self, data: FontData<'a>) -> RecordResolver<'a> {
|
||
RecordResolver {
|
||
name: "ColorRecord",
|
||
get_field: Box::new(move |idx, _data| match idx {
|
||
0usize => Some(Field::new("blue", self.blue())),
|
||
1usize => Some(Field::new("green", self.green())),
|
||
2usize => Some(Field::new("red", self.red())),
|
||
3usize => Some(Field::new("alpha", self.alpha())),
|
||
_ => None,
|
||
}),
|
||
data,
|
||
}
|
||
}
|
||
}
|