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3,708 Commits 3 Branches 53 Tags
5b9903f358356d06cfb53036dce9d35900ce18d8
Commit Graph
401 Commits
Author SHA1 Message Date
Rangi 8bf5957c83 Fix RGBLINK assertion failure when -s and -c invalidly match (#2109) 2026-09-18 01:34:14 +02:00
Rangi 004749ea75 Halt processing when any ambiguous-transparency colors exist (#2093) 2026-09-16 04:03:56 +02:00
Rangi 7746ddbf2b Fix reverse-graphics check for whether the tilemap references too-high tile IDs in bank 1 (#2086) 2026-09-14 10:26:57 -04:00
Rangi f8a1da71c1 Only sort generated palette colors by PLTE order for indexed PNG images 
Non-indexed images can still have a PLTE chunk. We should use
`sortRgb` instead of `sortIndexed` for them, since their pixels' colors
may not all be present in the PLTE chunk and would be unsortable.
 2026-09-13 18:53:31 -04:00
Rangi 49b3f566b1 Fix handling of PNG files with RGB or RGBA color type that have a PLTE chunk 2026-09-13 16:09:49 -04:00
Rangi 82f58b95ac Fix reversing some images with an input tileset (#2081) 2026-09-13 21:00:58 +02:00
RangiandEldred Habert e9fc7b3135 Warn when tile or palette IDs cannot fit in the tilemap or attrmap respectively (#2077) 
Co-authored-by: Eldred Habert <[email protected]>
 2026-09-13 19:18:24 +02:00
Rangi 520cc2a80d Fix reversing a tilemapped image with -x trimmed tiles 2026-09-12 15:38:34 -04:00
Rangi e9c800b3be Fix reversing 1bpp images 
Fixes #2075
 2026-09-12 14:17:33 -04:00
Rangi 8a7019e1f8 Only register colors inside the -L/--slice region, including transparent color 
Fixes #2074
 2026-09-12 12:52:35 -04:00
Rangi 439a7a1828 Fix reversing multiple palettes with fewer than 4 colors per palette 
Fixes #2073
 2026-09-12 11:50:47 -04:00
Rangi 438b943a1a Make background tile IDs consistent whether or not deduplication is enabled 
Fixes #2072
 2026-09-11 20:45:52 -04:00
RangiandISSOtm 9e785495ff Fix crash when a background tile first occurs after both tile banks are full (#2070) 
Co-authored-by: ISSOtm <[email protected]>
 2026-09-12 01:04:31 +02:00
Rangi 9c5e872f9c First color of -c palettes with transparent pixels is transparent $8000, not unspecified $ffff 2026-09-10 16:41:32 -04:00
Rangi 25240e9fc0 Fix but deprecate an implicit transparent color #0 2026-09-10 19:32:00 +02:00
Rangi 8a6b1946e3 Parse inline palette specs after getting CLI palette size limit (#2054) 2026-09-10 18:54:24 +02:00
Rangi 8988cdde46 Fix reversing images with fewer than 4 colors per palette 2026-09-03 13:39:24 +02:00
Rangi 604c69e048 Fix palette-packing decant logic to avoid UB from invalid iterator (#2031) 
The "Iterate through the component's color sets, and transfer them"
logic shifted `from.begin()`, which would make subsequent `std::advance`
calls go past `_assigned.end()` and cause UB. This rewrite uses absolute
numeric indexes into `_assigned` to avoid that potential problem.

I haven't been able to craft a test case that actually *reaches*
that piece of logic, and I suspect that it's unreachable given how
we sort and process color sets before decanting, but cannot prove
that; so it stays in. (Maybe if we added 4bpp 16-colors-per-palette
support, it would become reachable?)
 2026-07-22 23:48:02 -04:00
Rangi 9cbfec30c7 Avoid redundant "Unexpected text" error message after "Unknown" error 2026-07-21 13:54:11 -04:00
Rangi 0af28de791 Fix assertion failure on nonzero base palette ID without an attribute map or palette map 
Also fix palette map IDs to wrap at 256, not at 8 like attributes
 2026-07-19 23:59:38 -04:00
Rangi 7e11ab4d8f uint16_t tileIdx type matches options.baseTileIDs 
Tile IDs wrap at 8 bits, but that's handled by `uint8_t tileID`
 2026-07-19 23:33:01 -04:00
Rangi e84bcf83b4 Use Procedure concept to type-check decantOn lambda 2026-07-15 23:27:08 -04:00
Rangi 5aa7067876 Comment on how overflow to 0 is explicitly allowed for tile and palette IDs 2026-07-15 22:28:08 -04:00
Rangi dff176791c Correct grammar "is" vs "are" in RGBGFX reverse mode error messages 2026-07-14 11:29:30 -04:00
Rangi 07f5969005 Consistency check the palette map, not just the attribute map 2026-07-14 11:27:41 -04:00
Rangi d61c0561c1 Correct condition to completely print both palettes and options.palSpec 2026-07-14 11:23:03 -04:00
Rangi 1ed22cc518 Mask blue for consistency (avoids transparent bit bugs) 2026-07-14 10:34:27 -04:00
Rangi 9a15b723f2 Format CGB colors in error/verbose messages as "GB:rr,gg,bb" 
These should be more debuggable than packed "$xxxx" format.
 2026-07-14 10:34:27 -04:00
Rangi e7855ea1b8 Fix reverse mode with -s/--palette-size too small for the tile data 2026-07-14 01:11:11 -04:00
Rangi c0ff3d92ad Fix reverse palette offsets when base palette ID wraps around to 0 2026-07-13 23:08:20 -04:00
Rangi e4583e7ac2 RGBGFX reverse mode checks for too-low palette IDs, not just too-high 2026-07-13 23:08:20 -04:00
Rangi 8b951bc047 Fix a flaky/random-seed rgbgfx_test test failure 
Commit 21eaa2d2cc missed some
intentional unsigned underflow that is needed to set `nbTilesInBank`.
Without it, some of the randomly-seeded RGBGFX tests, such as
`./rgbgfx_test seed8.bin -b 207 -N 54,256`, can fail with "Color
mismatch after round-tripping" errors.
 2026-07-13 21:31:05 -04:00
Rangi 59b6b15106 Run make format 2026-07-13 21:30:23 -04:00
Rangi 304cbb464f Factor out verboseDo to encapsulate magenta output color 2026-07-13 18:05:55 -04:00
Rangi ea3a8ee171 Use magenta color for some verbose output which was missing it 2026-07-13 17:47:38 -04:00
Rangi 4a6ea35299 Avoid overflow in counting tiles for unrealistically large images 2026-07-13 17:47:38 -04:00
Rangi 21eaa2d2cc Fix a > to >=, and avoid underflow in some sanity checks 2026-07-13 13:14:06 -04:00
Rangi 4857ad1e00 Fix crash on image without any colors (all transparent) 2026-07-11 13:18:40 -04:00
Rangi 3b33c942ae Fix a crash and a limitation in RGBGFX unoptimized output 
- If both banks 0 and 1 were completely filled, then
  `assume(bank == 0)` would false and potentially crash.
- If the input image had fully-background tiles, they would be
  incorrectly counted towards `nbTiles` and could cause the
  "Image contains N tiles, exceeding the limit" check to fail.
 2026-07-11 12:32:31 -04:00
Rangi be4c1161bd Fix RGBGFX crash when trimming more tiles than exist after deduplication 2026-07-10 17:35:32 -04:00
Rangi 118f1f7543 Correct option letter in error message 2026-07-10 16:59:30 -04:00
Rangi eaa35ed26d Remove dead return after no-return fatal call 2026-07-10 14:36:46 -04:00
Rangi 7b39bcd412 Refactor expression for clarity 
`tileData[realY + 1 % options.bitDepth]` relied on order of
operations and the fact that `1 % 1 == 0` but `1 % 2 == 1` for
correct indexing. However, it was not obvious at first glance,
and confusable with the more common `(base + offset) % size`
pattern. (And would need changing anyway if we ever support 4bpp.)
 2026-07-10 14:30:25 -04:00
Rangi 255cd7f7f6 Fix a typo in a comment 2026-07-10 14:29:32 -04:00
Rangi 39e7e064c9 Print correct color set limit value in error message 2026-07-09 21:29:02 -04:00
Rangi 7b97d7ce15 Fix RGBGFX crash on deduplicating transparent tiles 2026-07-09 21:24:59 -04:00
Rangi c667bac93a Use trailing return type for begin()/end() 2026-07-08 16:57:52 -04:00
Rangi db96144d49 Use [[nodiscard]] instead of [[gnu::warn_unused_result]] 2026-07-08 16:44:15 -04:00
Rangi 276a1a7952 Use const_cast more precisely to remove const without changing type 2026-07-08 16:42:53 -04:00
Rangi 5aedf31b46 Prevent 32-bit multiplication overflow 
Basically impossible to achieve, but just in case
 2026-07-07 17:02:46 -04:00