Commit Graph
7 Commits
Author SHA1 Message Date
Claude 1692aad51e Texture replacement: Optionally dump paletted textures as 8-bit palette PNGs
saveIndexed = true in [options] saves the CLUT4/CLUT8 textures listed in
[indexed] as palette PNGs, saveIndexed = all saves every one of them.
The file is named <hash>_indexed.png, with the CLUT hash zeroed so one
file serves every palette of the texture. The other textures are dumped
as before.

The indices are decoded from PSP memory and the palette comes from the
current CLUT, so the dump looks like the game's texture. Add the file to
[hashes] and [indexed] to use it as a replacement.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
2026-10-15 16:15:11 +02:00
Claude 03391c66cb Texture replacement: Support palette-indexed replacement images
- Fixes #15145

A replacement listed in a new [indexed] section of textures.ini holds
palette indices instead of colors: a palette PNG (the file's palette index)
or an 8-bit grayscale PNG (the gray value), at any resolution. When the
texture is built, the indices go through the game's current CLUT, including
the CLUT index shift, mask and start position, and the result is uploaded as
an ordinary RGBA texture. A game that swaps or customizes a palette keeps
working with a high-resolution replacement.

[indexed] keys use the [hashes] format and are matched with the same
wildcards, so a key with a zero CLUT hash covers every palette of the
texture. The contents hash only covers the indices, so one image is shared
by all palettes (the loaded data is shared, each palette still has its own
texture cache entry).

Saving does not dump indexed textures yet.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
2026-10-14 21:42:39 +02:00
Henrik Rydgård a7b1b319ce Limit PNG decode dimensions to prevent decompression bombs
pngLoadPtr allocated the decoded buffer directly from attacker-controlled
PNG IHDR dimensions with no upper bound, so browsing a crafted game icon
or savedata could trigger a multi-gigabyte allocation.

- Add maxWidth/maxHeight parameters to pngLoadPtr (default 8192x8192)
  and reject images larger than the limits.
- Thread the limits through LoadTextureLevelsFromFileData,
  CreateTextureFromFileData, and CreateTextureFromFile.
- Limit game icons to 256x128 in GameInfoCache and IconCache.
2026-08-01 11:41:24 +02:00
Henrik Rydgård 947ddf865f Extract some duplicated code into a pngSave function 2025-09-15 11:46:54 -06:00
Henrik Rydgård c4652d30e2 Address feedback 2023-03-08 08:29:23 +01:00
Henrik Rydgård 76c6058abe Texture replacer: Faster way to get width/height from a png 2023-03-07 22:20:56 +01:00
Henrik Rydgård 4f43cff5ca Move fileutil, net, image loaders, ui to Common. (#13506)
* Move and rename file_util/fd_util to Common/File/FileUtil and DirListing

Let's also move net while we're at it.

Move the ZIM/PNG loaders over to Common.

Move the UI framework into Common

iOS buildfix

* Buildfix

* Buildfixes

* Apple buildfix

* This typo again..

* UWP buildfix

* Fix build of PPSSPPQt, such as it is (it's not in good condition...)

* Guess what? Another buildfix.
2020-10-04 20:48:47 +02:00