The frame a trace starts in may already have asked for its next one before the trace started, so with no input the finished trace could wait. From the review of #4617.
From the review of #4605. TraceParams::swatches isn't in the settings' JSON (serde skip), so a Document Library trace whose swatches were edited while it ran still applied, with the old colours; the trace's inputs now hold them. The 100 ms repaint that keeps background work moving left traces out, so without input a finished trace could wait for the next event.
Pages that share one Contents array made the name of a refused stream read that array once per page, quadratic in a crafted file. Each object is now read once, and a page's own array as before. From the review of #4612.
A page's Contents can be an array written as an object of its own (/Contents 6 0 R). Its streams were named "a stream in it": the reference was compared with the stream, not the array's items. From the review of #4603.
Follow-up to #4600, from its review. A start left OpenGL out whenever
Direct3D 12 listed an adapter, and WARP, its software adapter, is
always listed. So a GPU without a Direct3D 12 driver, which drew
through OpenGL before, now drew on the CPU. An adapter that
WGPU_ADAPTER_NAME named was left out too when it was an OpenGL one.
OpenGL is now listed when Direct3D 12 lists no hardware adapter and
when WGPU_ADAPTER_NAME is set. The Direct3D 12 check takes the shader
compiler the window does (WGPU_DX12_COMPILER, else FXC).
Tracing a photo or a large image ran inside imageTrace.make on the UI
thread, so the window froze for as long as the trace took, with nothing
to say it was working.
A trace the user asks for (Object > Image Trace > Make and Make and
Expand, the task bar's Image Trace, the Image Trace panel's Trace and
presets) now runs on a thread of its own, as heavy plug-in filters do.
The status bar says so, and after 0.4 s a progress window shows how
many of the image's colors are traced, with Cancel and Continue in
Background (imageTrace.cancelRuns, imageTrace.hideRuns).
The result goes back to the command it was prepared for
(cmd::TraceRun, Traced::hand_in), which takes it only for the same
object, image and settings, so the edit is one undo step as before. A
newer trace of the same object replaces one still running, and a trace
whose image or settings changed meanwhile changes nothing. The control
channel, MCP, scripts and the web trace at once, as before.
The tracer reports its stages and color layers to a callback and stops
when it says so (trace_watched).
wgpu's OpenGL backend on Windows keeps a hidden window on a helper
thread that pumps no messages (gfx-rs/wgpu#10504). Windows hands an
input-language change to every UI thread of the process and waits for
each, so switching the keyboard to another layout hung the whole app,
even while it drew with Direct3D 12. OpenGL was started on every
Windows start, as the fallback.
A Windows start now lists Direct3D 12 alone. OpenGL is still listed
where it is the fallback: after a start crashed on an adapter or while
listing them (#2243), after a restart that left an adapter out, and when
Direct3D 12 lists no adapter at all (Windows 7). WGPU_BACKEND still
picks the backends as before.
VoiceLessQ