Commit Graph

4 Commits

Author SHA1 Message Date
Skyler Lehmkuhl 6b8a1f1386 SVG export: emit text layers as real glyph outlines
SVG export silently dropped Text layers (they fell through the layer_to_svg
catch-all) while the dialog implied only raster/video/effect were excluded, so
title/caption text vanished from a "lossless" export with a success message.

Emit text as actual glyph-outline <path>s: lay the text out with the same
parley path the renderer uses, then extract each positioned glyph's outline
with skrifa (an OutlinePen that maps points into document space — Y flip,
synthetic-italic skew, variable-font normalized coords). Result is
font-independent and needs no <text>/@font-face. Vello rasterizes glyphs on the
GPU and doesn't expose the path, but the skrifa outline API it uses is directly
callable and parley's glyph IDs are real font GIDs, so the outlines match.

Synthetic bold is not applied (rare). Adds a skrifa dep pinned to parley's 0.43.
2026-07-09 07:10:59 -04:00
Skyler Lehmkuhl b301c63387 Address code-review findings across export, decode, and data model
Export correctness:
- Honor the user's color-range (Limited/Full) on the software encode path:
  thread full_range through gpu_yuv (new shader range uniform), the CPU
  swscale fallback (sws_setColorspaceDetails → BT.709 + range, fixing the
  BT.601 hue/level shift on odd-width exports), and the encoder color tags.
- Reject HDR + WebM up front with a clear message and log the forced HEVC
  override instead of producing an unplayable file.
- Delete dead render_frame_to_rgba_hdr (hardcoded Stretch; live HDR path
  already honors the fit mode).

Decode/playback (video.rs):
- Drain the decoder at EOF (send_eof + flush) so the final B-frame-delayed
  frames render instead of erroring; per-frame logic extracted to a helper.
- Missing-PTS frames continue monotonically rather than snapping to ts=0.
- Force exact thumbnail width so sub-128px sources aren't shown stretched.

Resource leaks (gpu-video-encoder):
- dmabuf import_raw: RAII guard frees the duped fd + partial VkImages/memory
  on every error path.
- vaapi alloc: free device/frames-ctx/AVFrames on the unexpected-DRM path.

Data model / robustness:
- collapse_boundary_spikes requires a full curve reversal (all control
  points) so it no longer deletes a real lens/sliver and drops the fill.
- Export audio spin-wait ignores a stale `finished` flag when a forward
  seek is pending (was rendering silence over real audio).
- RasterDiff apply_before/after take current dims and skip on a post-resize
  mismatch.
- beam_archive read_media_full caps the preallocation from untrusted total_len.

UI/visual:
- SVG export skips hidden layers/empty groups; import folds fill-opacity into
  gradients and surfaces failures as a notification.
- Active raster-layer border uses playback_time + overlay_transform.
- gpu_brush remove_layer_texture also evicts the stale low-res proxy.
- ensure_raster_resident_for_undo registers faulted frames in the LRU so
  resident RAM stays bounded.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-26 17:47:32 -04:00
Skyler Lehmkuhl 1fa4d744be Add SVG vector import and export
Export (lightningbeam-core/svg_export.rs): document_to_svg walks vector
layers/groups at a given frame and emits <path> per fill (solid or
gradient via <defs>) and per stroked edge. Wired into the export dialog
as an "SVG" tab; written synchronously. Raster/video/effect layers are
skipped (vector-only, lossless), structured for a later rasterize pass.

Import (lightningbeam-editor/svg_import.rs): import_svg parses via usvg,
bakes each path's absolute transform into geometry, converts segments to
cubic edges, and maps solid/linear/radial paint to ShapeColor/
ShapeGradient. .svg is detected in the Ctrl+I Import handler and added as
a new vector layer (keyframe at the playhead). file_types gains
FileType::Vector + VECTOR_EXTENSIONS.

Tests: svg_export::export_tests (core) and svg_import::tests (editor).
2026-06-26 16:40:39 -04:00
Skyler Lehmkuhl dc93f78dc7 More work on DCEL correctness 2026-03-09 13:41:45 -04:00