Struct MetalEncodeStageAccelerator 

pub struct MetalEncodeStageAccelerator { /* private fields */ }

Encode-stage accelerator for JPEG 2000 Metal work.

The type is wired into the public J2K encode-stage interface and reports dispatches for each required encode stage.

Implementations

impl MetalEncodeStageAccelerator

pub fn with_cpu_forward_rct() -> Self

Create an accelerator that leaves forward RCT on the CPU path.

pub fn for_auto_host_output() -> Self

Create the conservative automatic accelerator for host codestream output.

pub fn for_ht_code_block_encode() -> Self

Create an accelerator that only attempts the HT code-block stage on Metal.

pub fn deinterleave_attempts(&self) -> usize

Number of deinterleave stage attempts.

pub fn forward_rct_attempts(&self) -> usize

Number of forward RCT stage attempts.

pub fn forward_ict_attempts(&self) -> usize

Number of forward ICT stage attempts.

pub fn forward_dwt53_attempts(&self) -> usize

Number of forward 5/3 DWT stage attempts.

pub fn forward_dwt97_attempts(&self) -> usize

Number of forward 9/7 DWT stage attempts.

pub fn quantize_subband_attempts(&self) -> usize

Number of sub-band quantization stage attempts.

pub fn tier1_code_block_attempts(&self) -> usize

Number of classic Tier-1 code-block encode attempts.

pub fn ht_code_block_attempts(&self) -> usize

Number of HT code-block encode attempts.

pub fn packetization_attempts(&self) -> usize

Number of packetization stage attempts.

pub fn deinterleave_dispatches(&self) -> usize

Number of deinterleave Metal dispatches.

pub fn forward_rct_dispatches(&self) -> usize

Number of forward RCT Metal dispatches.

pub fn forward_ict_dispatches(&self) -> usize

Number of forward ICT Metal dispatches.

pub fn forward_dwt53_dispatches(&self) -> usize

Number of forward 5/3 DWT Metal dispatches.

pub fn forward_dwt97_dispatches(&self) -> usize

Number of forward 9/7 DWT Metal dispatches.

pub fn quantize_subband_dispatches(&self) -> usize

Number of sub-band quantization Metal dispatches.

pub fn tier1_code_block_dispatches(&self) -> usize

Number of classic Tier-1 Metal dispatches.

pub fn ht_code_block_dispatches(&self) -> usize

Number of HT code-block Metal dispatches.

pub fn packetization_dispatches(&self) -> usize

Number of packetization Metal dispatches.

Trait Implementations

impl Clone for MetalEncodeStageAccelerator

fn clone(&self) -> MetalEncodeStageAccelerator

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for MetalEncodeStageAccelerator

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for MetalEncodeStageAccelerator

fn default() -> Self

Returns the “default value” for a type.

impl J2kEncodeStageAccelerator for MetalEncodeStageAccelerator

fn dispatch_report(&self) -> J2kEncodeDispatchReport

Report cumulative backend dispatches completed by this accelerator.

fn prefer_parallel_cpu_code_block_fallback(&self) -> bool

Return whether native CPU code-block fallback should use internal rayon parallelism.

fn encode_deinterleave( &mut self, job: J2kDeinterleaveToF32Job<'_>, ) -> Result<Option<Vec<Vec<f32>>>, &'static str>

Optionally deinterleave interleaved pixel bytes into f32 component planes.

fn encode_forward_rct( &mut self, job: J2kForwardRctJob<'_>, ) -> Result<bool, &'static str>

Optionally apply forward RCT in place.

fn encode_forward_ict( &mut self, job: J2kForwardIctJob<'_>, ) -> Result<bool, &'static str>

Optionally apply forward ICT in place.

fn encode_forward_dwt53( &mut self, job: J2kForwardDwt53Job<'_>, ) -> Result<Option<J2kForwardDwt53Output>, &'static str>

Optionally run a forward reversible 5/3 DWT.

fn encode_forward_dwt97( &mut self, job: J2kForwardDwt97Job<'_>, ) -> Result<Option<J2kForwardDwt97Output>, &'static str>

Optionally run a forward irreversible 9/7 DWT.

fn encode_quantize_subband( &mut self, job: J2kQuantizeSubbandJob<'_>, ) -> Result<Option<Vec<i32>>, &'static str>

Optionally quantize one sub-band.

fn encode_tier1_code_block( &mut self, job: J2kTier1CodeBlockEncodeJob<'_>, ) -> Result<Option<EncodedJ2kCodeBlock>, &'static str>

Optionally encode one classic Tier-1 code-block.

fn encode_tier1_code_blocks( &mut self, jobs: &[J2kTier1CodeBlockEncodeJob<'_>], ) -> Result<Option<Vec<EncodedJ2kCodeBlock>>, &'static str>

Optionally encode multiple classic Tier-1 code-blocks in one backend dispatch.

fn encode_ht_code_block( &mut self, job: J2kHtCodeBlockEncodeJob<'_>, ) -> Result<Option<EncodedHtJ2kCodeBlock>, &'static str>

Optionally encode one HTJ2K code-block.

fn encode_ht_code_blocks( &mut self, jobs: &[J2kHtCodeBlockEncodeJob<'_>], ) -> Result<Option<Vec<EncodedHtJ2kCodeBlock>>, &'static str>

Optionally encode multiple HTJ2K code-blocks in one backend dispatch.

fn encode_htj2k_tile( &mut self, job: J2kHtj2kTileEncodeJob<'_>, ) -> Result<Option<Vec<u8>>, &'static str>

Optionally encode the complete HTJ2K tile packet body.

fn encode_packetization( &mut self, job: J2kPacketizationEncodeJob<'_>, ) -> Result<Option<Vec<u8>>, &'static str>

Optionally packetize prepared packet contributions.

fn encode_ht_subband( &mut self, _job: J2kHtSubbandEncodeJob<'_>, ) -> Result<Option<Vec<EncodedHtJ2kCodeBlock>>, &'static str>

Optionally quantize and encode one HTJ2K cleanup-only sub-band.

fn prefer_parallel_cpu_tile_encode(&self) -> bool

Return whether whole-tile CPU-only batch encode may be parallelized by callers.