49 lines
1.3 KiB
Rust
49 lines
1.3 KiB
Rust
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//! re-exported constants for use in C
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use servicepoint::CompressionCode;
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use std::time::Duration;
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/// size of a single tile in one dimension
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pub const SP_TILE_SIZE: usize = 8;
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/// Display tile count in the x-direction
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pub const SP_TILE_WIDTH: usize = 56;
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/// Display tile count in the y-direction
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pub const SP_TILE_HEIGHT: usize = 20;
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/// Display width in pixels
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pub const SP_PIXEL_WIDTH: usize = SP_TILE_WIDTH * SP_TILE_SIZE;
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/// Display height in pixels
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pub const SP_PIXEL_HEIGHT: usize = SP_TILE_HEIGHT * SP_TILE_SIZE;
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/// pixel count on whole screen
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pub const SP_PIXEL_COUNT: usize = SP_PIXEL_WIDTH * SP_PIXEL_HEIGHT;
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/// Actual hardware limit is around 28-29ms/frame. Rounded up for less dropped packets.
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pub const SP_FRAME_PACING_MS: u128 = Duration::from_millis(30).as_millis();
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/// Specifies the kind of compression to use.
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#[repr(u16)]
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pub enum SPCompressionCode {
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/// no compression
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Uncompressed = 0x0,
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/// compress using flate2 with zlib header
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Zlib = 0x677a,
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/// compress using bzip2
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Bzip2 = 0x627a,
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/// compress using lzma
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Lzma = 0x6c7a,
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/// compress using Zstandard
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Zstd = 0x7a73,
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}
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impl TryFrom<SPCompressionCode> for CompressionCode {
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type Error = ();
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fn try_from(value: SPCompressionCode) -> Result<Self, Self::Error> {
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CompressionCode::try_from(value as u16)
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}
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}
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