Hardware parity with PowerPoint
Last reviewed: 2026-10-14 · Last updated: 2026-10-14 · Change: minor (community PR wave 2026-10-14: picture export DPI, Retina pixel grid (#184), twist to rotate, swipe to turn the page, pen pressure; duplicated rows and headers folded; previous: minor, IME input, #101) · Target: Microsoft PowerPoint for Mac 16.113 (Microsoft 365); PowerPoint for Windows where noted
What hardware PowerPoint uses and what DeckCraft uses, per platform. Dimension score: ~40%
ready (estimated), 25–45 h to parity. Performance (unmeasured, ~55%) is tracked here too
because it mostly follows from hardware use.
Graphics and rendering
| Feature |
PowerPoint |
DeckCraft macOS |
DeckCraft Windows |
DeckCraft Linux/BSD |
DeckCraft web |
| Window compositing on the GPU |
Metal / DirectX |
wgpu (Metal) |
wgpu, DX12 only by default (#16) |
wgpu (Vulkan, GL) |
WebGPU, WebGL2 fallback |
| Slide rasterization |
GPU |
CPU (vello_cpu) |
CPU |
CPU |
CPU (wasm) |
| Transitions and Morph frames |
GPU |
CPU-rendered slide images composited as textured quads on the GPU |
same |
same |
same |
| Picture export resolution |
2 px per point, tagged so the file is the slide's size |
PNG pHYs and JPEG density, 144 dpi at the default 2 px per point |
same |
same |
same |
| High-DPI / Retina |
yes |
yes; editor slide rasters sit on the physical pixel grid (#184) |
yes |
yes |
yes |
| Wide gamut / HDR display |
partly (P3 images) |
no (sRGB) |
no |
no |
no |
| Startup on all GPUs |
yes |
yes |
no: crashes in some Intel/AMD drivers (#40, #59) |
not reported |
n/a |
| Software fallback when no GPU |
yes (WARP on Windows) |
no |
no |
no |
no |
Media
| Feature |
PowerPoint |
DeckCraft |
| Video decode |
Hardware (AVFoundation/VideoToolbox, Media Foundation) |
Software only: pure-Rust H.264, HEVC, VP9, AV1 (crates/h264, hevc, vp9, av1) |
| 4K video in the show |
smooth on hardware decode |
unmeasured; likely CPU-bound |
| Audio output |
Core Audio / WASAPI |
cpal (Core Audio, WASAPI, ALSA); browser Web Audio |
| Microphone (record audio, narration) |
yes |
no |
| Camera (Cameo, record with camera) |
yes |
no |
| Screen recording |
yes |
no |
Displays
| Feature |
PowerPoint |
DeckCraft |
| Detect the projector, show on it, presenter view on the laptop |
yes |
no: the show goes full screen on the current display; presenter view opens as a normal window (egui viewport) |
| Swap displays, choose the monitor in Set Up Show |
yes |
no |
| Mirroring-aware behaviour |
yes |
no |
Input devices
| Feature |
PowerPoint |
DeckCraft |
| Keyboard and presentation clickers (Page Up/Down, B, Esc) |
yes |
yes |
| Mouse and trackpad scroll |
yes |
yes |
| Pinch to zoom, two-finger gestures |
yes |
partial: pinch zoom does not keep the point under the pointer; a two-finger twist rotates the selected shapes |
| Two-finger swipe between slides |
yes |
yes: when the slide fits the window, and during the show. A zoomed slide still pans |
| Pen pressure and tilt for ink (Apple Pencil via Sidecar, Windows Ink) |
yes |
pressure scales the stroke when the pointer reports it (a mouse or a missing reading draws at the pen width); tilt is not read |
| Touch screens (Windows) |
yes |
basic pointer only |
| IME input methods for CJK text |
yes |
yes: composed in place, underlined, candidate window at the caret (#101) |
| Dictation |
yes (macOS) |
no |
Performance
Nothing is measured against PowerPoint yet: no benchmark of open time, render time per slide,
show frame rate or memory exists in xtask. Known: slides rasterize on the CPU, Morph aligns
outlines every frame (#67, fix open), and the decoders run in software.
Estimates
| Work |
Hours |
| Presenter view on the right display, choose monitor, swap |
3–5 |
| GPU slide rasterization (vello's GPU/hybrid path) |
12–20 |
| Hardware video decode (copy FilmCraft's VideoToolbox / Media Foundation / VA-API paths) |
8–14 |
| Windows GPU startup robustness: backend probing, software fallback (#40, #59) |
4–8 (counted under Stability) |
| Pen tilt, pinch zoom, trackpad gestures |
2–5 |
Benchmark suite (cargo xtask bench) and a first performance pass |
6–12 (Performance dimension) |
| Hardware total |
~25–44 |
Revision history
| Date |
Change |
Summary |
| 2026-10-14 |
minor |
PNG and JPEG slide export record 144 dpi at the default 2 pixels per point, so a Retina picture opens at the slide's size |
| 2026-10-13 |
trivial |
Editor slide rasters sit on the physical pixel grid (#184) |
| 2026-10-14 |
trivial |
Community PR wave folded: one row each for pinch/two-finger gestures and pen pressure |
| 2026-10-14 |
minor |
A two-finger twist on the trackpad rotates the selected shapes, as one undo step. Pinch-zoom is unchanged |
| 2026-10-14 |
minor |
A sideways trackpad swipe turns the page in Normal view (when the slide fits) and in the show. Pinch-zoom is unchanged |
| 2026-10-14 |
minor |
Pen pressure scales ink width; tilt, pinch zoom and trackpad gestures remain (estimate 3–6 h → 2–5 h) |
| 2026-10-12 |
minor |
IME input methods (#101) |
| 2026-10-10 |
major |
Created: rendering, media, displays, input and performance against PowerPoint 16.113 |
