pixtreme-legacy 0.8.2

Legacy compatibility functions for pixtreme (_cp functions)

pixtreme-legacy

⚠️ Legacy Compatibility Package: This package provides _cp functions removed from pixtreme v0.5.2+.

Status

• Maintenance Mode: Functions migrated from main pixtreme package in v0.5.2
• Note: v0.5.1 was broken; use v0.5.2 or later
• Recommendation: Migrate to standard functions (without _cp suffix) when possible

Purpose

This package provides backward compatibility for _cp functions that were removed from the main pixtreme package in v0.5.1. It contains the following functions:

• apply_lut_cp - Apply 3D LUT with CuPy implementation
• uyvy422_to_ycbcr444_cp - Convert UYVY422 to YCbCr444
• ndi_uyvy422_to_ycbcr444_cp - Convert NDI UYVY422 to YCbCr444
• yuv420p_to_ycbcr444_cp - Convert YUV420 to YCbCr444
• yuv422p10le_to_ycbcr444_cp - Convert YUV422p10le to YCbCr444

Installation

Requirements:

• Python >= 3.12
• CUDA Toolkit 12.x
• NVIDIA GPU with compute capability >= 6.0

pip install pixtreme-legacy

Usage

from pixtreme_legacy import apply_lut_cp

# No warnings - clean compatibility layer
result = apply_lut_cp(image, lut)

Note: This package depends on pixtreme>=0.6.0 for common utilities (to_float32, resize, etc.).

Migration Guide

Replace _cp functions with their standard equivalents:

Before (deprecated)

from pixtreme import apply_lut_cp
result = apply_lut_cp(image, lut, interpolation=0)

After (recommended)

from pixtreme import apply_lut
result = apply_lut(image, lut, interpolation=0)

Why were _cp functions deprecated?

The _cp suffix originally indicated "CuPy native" implementations, as opposed to CUDA kernel implementations. However:

1. Redundancy: Both implementations exist in the main functions now
2. Confusion: Users don't need to choose between implementations
3. Maintenance: Duplicate APIs increase maintenance burden

The standard functions (without _cp) now automatically select the best implementation.

Timeline

• v0.4.0: _cp functions available without warnings
• v0.5.0: _cp functions deprecated with warnings, pixtreme-legacy package created
• v0.5.1: BROKEN - Attempted _cp function removal but incomplete (do not use)
• v0.5.2: _cp functions fully removed from main package, migrated to pixtreme-legacy without warnings
• v0.6.0: Main pixtreme package split into modular packages (pixtreme-core, pixtreme-aces, pixtreme-filter, pixtreme-draw, pixtreme-upscale)

License

MIT License (same as pixtreme)