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build_icc_cache_for_list

stet_render

Function build_icc_cache_for_list 

Source 
pub fn build_icc_cache_for_list(
    list: &DisplayList,
    system_cmyk_bytes: Option<&Arc<Vec<u8>>>,
    proofing_enabled: bool,
) -> IccCache
Expand description

Pre-downsample an image when the transform indicates significant downscaling.

tiny-skia’s bilinear filter only samples a 2×2 neighborhood — it has no mipmap support, so large downscale ratios cause severe aliasing (e.g., 300 DPI bitmap fonts rendered at screen resolution).

For axis-aligned transforms: box-filter resample to the exact target dimensions.

Build an IccCache from ICC profiles found in a display list.

Registers all unique ICCBased profiles and optionally the system CMYK profile. When proofing_enabled is true, ICCBased profiles registered while scanning the display list are color-managed through the system CMYK (the PDF’s OutputIntent), so a render-thread cache built from the effective OutputIntent matches the bake-time cache that produced the display list. PostScript callers should pass false (no PDF/X OutputIntent semantics).