A PNG, JPEG, GIF or WebP image that takes more than the decode
allowance as RGBA (2 GiB, 512 MiB in the web app), such as a 24000 ×
24000 JPEG, was placed with the warning "too large to draw" and then
drew as a crossed gray box on the canvas and was left out of raster
exports. A 16-bit PNG whose decoded samples were past the allowance
was shown the same way, with the same warning, although its RGBA fits.
The renderer now decodes such an image at the largest size, keeping its
proportions, that fits the allowance as RGBA. Each pixel of the result
is the mean of the image's pixels it covers. A PNG that isn't
interlaced is read a row at a time; other images are decoded whole when
their decoded samples fit the allowance. A 16-bit PNG that isn't
interlaced and whose RGBA fits is read a row at a time at its own size.
An image of more pixels than the allowance has bytes still draws as the
crossed box, and so does one whose decoded samples are past the
allowance, other than a PNG that isn't interlaced. The renderer
decodes an image at reduced size only while the result and the memory
reading it takes (the image decoded whole, or the PNG reader's row
buffers) fit beside the images being painted; otherwise the image is
not decoded on that render (on the canvas it draws as the crossed box)
and is tried again on the next render. The document keeps the whole
file for saving and export. A placed document's saved preview past the
allowance is decoded the same way, at the size it is drawn at or at the
reduced size when that is smaller.
Open, Place and the Links panel say "an image of W × H pixels is shown
at reduced size" for an image drawn smaller. They say nothing for an
image drawn at its own size, and they say "too large to draw" for one
that is not drawn at reduced size.
Docs: docs/mcp.md, docs/target-app-parity.md (the crossed box's line
now names an image over the allowance that can't be drawn at reduced
size).
File › Open, File › Place and the Links panel note an image that needs
more than the decode allowance (2 GiB, 512 MiB in the web build). The
note counted the bytes the decoder gives, one a pixel for an 8-bit or
1-bit gray image, so a 1-bit gray PNG of 23,171 × 23,170 pixels (537 MB
as gray, 2,147,488,280 bytes as RGBA) got no note, although sampling,
recoloring and Load Texture refuse it for its RGBA size.
The note now counts width × height × 4, or the decoder's bytes when
they are more, against the allowance, with the size computed in 64
bits. Such an image gets the note an oversized RGBA image gets. Images
within the allowance get no note, as before.
Crop Image's trim (object.cropImage {trim: true}) decoded the image
within MAX_RASTER_ALLOC (2 GB) and then converted it to RGBA. The
decoder holds the decoded image, before conversion, to that allowance,
so a gray or 1-bit image within it could take up to four times as much
once converted.
Trim now reads the image's size from its header first and, when
width × height × 4 is over the allowance, fails before anything is
decoded, with the check and message Load Texture uses: "an image of
W × H pixels is too large to draw". Images within the allowance are
trimmed as before.
An image whose decode needs more than the 2 GiB allowance (512 MB on the web) is not drawn.
A raster export says so since #1517; on screen it was still blank with no word. Open and
Place now carry a warning for it, and the Links panel's row a note (links.list: note).
The Links panel lists every image (thumbnail, name, page, missing/modified/embedded
badge) with Show filters, sorting and thumbnail sizes; its buttons and flyout relink
(to a file or a folder), go to, update, edit the original, embed and unembed, show in
folder and open Placement Options. Link Info shows format, colour space, location, ppi
and effective ppi, dimensions, scale, rotation, size and dates. Edit > Edit Original
and the Properties panel's image section reach the same commands.
Engine: links.list, links.goTo, links.embed, links.unembed, links.info and
links.placementOptions; links.relink and links.update now place the new file as the
image's Placement Options say (transforms, bounds, file dimensions, fit, fill, the
alignment point, clip to the old bounds). Model: ImageObject.placement.
UI: links.editOriginal, links.reveal, ui.placementOptionsDialog; Services.open_file
and pick_folder on the desktop.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
dotCooCoo