Hajime Hoshi b78d867e7a internal/colormshader: extract ColorM shader logic from builtinshader ...

Create a new internal/colormshader package that owns the color matrix
shader generation, fully independent of internal/builtinshader. It has
its own shader template with ColorM logic baked in, its own
Filter/Address types, and a go:generate pipeline producing defs.go.

This removes the useColorM dimension from internal/builtinshader,
reducing it from 18 shader variants to 9. The colorm package now
imports only colormshader (not builtinshader) for shader sources,
preparing for the v2/v3 split where v2's colorm cannot access v3's
builtinshader.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

2026-03-14 15:59:50 +09:00

..

defs.go

internal/colormshader: extract ColorM shader logic from builtinshader

2026-03-14 15:59:50 +09:00

gen.go

internal/colormshader: extract ColorM shader logic from builtinshader

2026-03-14 15:59:50 +09:00

shader.go

internal/colormshader: extract ColorM shader logic from builtinshader

2026-03-14 15:59:50 +09:00