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55583 commits 1 branch 0 tags 230 MiB
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1650 commits

Author SHA1 Message Date
Tim Ledbetter
1a4df4ffe7 LibGfx/ICC: Avoid overflow when constructing NamedColor2TagData 2023-10-26 10:59:22 +02:00
Tim Ledbetter
7096ea82f9 LibGfx: Use count_leading_zeroes to calculate nearest power of 2 
This removes the possibility of an infinite loop.
 2023-10-26 08:39:26 +02:00
Tim Ledbetter
6e4c97a328 LibGfx/WOFF: Return error if numTables is 0 
This is consistent with WOFF2.
 2023-10-26 08:39:26 +02:00
Tim Ledbetter
52f78d07b8 LibGfx/WOFF2: Ensure numTables is within expected range 
An error is now returned if `numTables` is zero or greater than 4096.
While this isn't explicitly mentioned in the specification, subsequent
calculations will be incorrect if the value falls outside this range.
 2023-10-26 08:39:26 +02:00
Tim Ledbetter
2311e28d63 LibGfx/BMPLoader: Mitigate potential overflows when decoding bitmap DIB 2023-10-25 05:52:29 +02:00
Tim Ledbetter
8ec26f3b54 LibGfx/BMPLoader: Account for header size when checking DIB bounds 2023-10-25 05:52:29 +02:00
Tim Ledbetter
e9be1bcd09 LibGfx/WOFF2: Reject fonts with a compressed size larger than 10MiB 
This prevents a potential OOM condition when the header is malformed.
 2023-10-24 13:45:01 +02:00
Tim Ledbetter
af633523af LibGfx/WOFF2: Tolerate incorrect totalSfntSize in WOFF2 header 
The specification says that this value is for reference only, so we
should be able to load a file where this value is incorrect.
 2023-10-24 13:45:01 +02:00
Tim Ledbetter
c2112cde76 LibGfx/WOFF: Ensure header totalSfntSize matches expected value 2023-10-24 07:29:09 +02:00
Tim Ledbetter
7ee09ca49d LibGfx/WOFF: Avoid overflow in table directory search range 
This commit limits `WOFF::Header::num_tables` to 4096. This limitation
is not explicitly mentioned in the specification, but allowing numbers
larger than this results in an overflow when calculating
`search_range` and `range_shift`.
 2023-10-24 07:29:09 +02:00
Sam Atkins
e108f394bf LibGfx: Replace manual offsets when producing WOFF2 loca table 2023-10-22 19:42:22 +02:00
Sam Atkins
885665b3a6 LibGfx: Simplify writing to WOFF2 reconstructed glyf table 2023-10-22 19:42:22 +02:00
Sam Atkins
ad717af63d LibGfx: Read WOFF2 transformed GLYF table buffers in-place 
This saves us from having to allocate a buffer and copying the data,
when it's already available to us. Also, less code. :^)
 2023-10-22 19:42:22 +02:00
Sam Atkins
9642a0f43a LibGfx: Use a struct for reading WOFF2 transformed GLYF table 2023-10-22 19:42:22 +02:00
Sam Atkins
8e96902c75 LibGfx: Use OpenType offset table structs when reading WOFF2 font data 2023-10-22 19:42:22 +02:00
Sam Atkins
b73b434f80 LibGfx: Use a Header struct when reading WOFF2 font data 2023-10-22 19:42:22 +02:00
Sam Atkins
9f93ae4bfc LibGfx: Use offset table structs when reading WOFF font data 2023-10-22 19:42:22 +02:00
Sam Atkins
d80c528eb4 LibGfx: Add structs for OpenType offset table 2023-10-22 19:42:22 +02:00
Sam Atkins
e7fe377501 LibGfx: Use a Stream to read WOFF font data 
This lets us read structs directly from the data, instead of having to
construct them from manual offsets.
 2023-10-22 19:42:22 +02:00
Tim Ledbetter
023309fdc4 LibGfx/JPEGLoader: Check array access bounds when building lookup table 2023-10-20 07:17:27 +02:00
circl
a9208a18ca LibGfx/BMPLoader: Make sure height passed to Gfx::Bitmap is positive 
BMP files encode the direction of the rows with the sign of the height.
Our BMP decoder already makes all the proper checks, however when
constructing the Gfx::Bitmap, didn't actually make the height positive.

Boog neutralized :^)
 2023-10-19 08:31:36 +02:00
Nico Weber
a4dec92ed0 LibGfx: Add Bitmap::scaled_to_size() 2023-10-18 20:03:35 +01:00
Aliaksandr Kalenik
c2eaa0eb1c LibGfx: Fix crash during rasterizing glyphs containing only one point 
Fixes https://github.com/SerenityOS/serenity/issues/20179
 2023-10-18 01:16:21 +02:00
Andrew Kaster
639051d34e LibGfx: Inspect font paths using LexicalPath::has_extension() 
This prevents us from trying to load a file named "fonts/.font"
 2023-10-17 11:02:01 -06:00
Andrew Kaster
21d027129d LibGfx: Remove the ability to load fonts from a path directly 2023-10-17 11:02:01 -06:00
Andrew Kaster
e03357308c LibGfx: Load fonts with new Resource API instead of filesystem paths 
The old API is in place until we remove all the users.
 2023-10-17 11:02:01 -06:00
Tim Ledbetter
f4a89c31c6 LibGfx/ILBM: Explicitly fail decoding if body chunk isn't present 
Previously, the decoder would crash in this case.
 2023-10-17 10:24:27 +02:00
MacDue
95bf6ddb8e LibGfx: Fix serializing Gfx::Bitmaps 
a396bb0 removed the palette field but did not update the allocation size
in `Bitmap::serialize_to_byte_buffer()`. This led to a few crashes (I
noticed this from a drag/drop crash in the file manager).

Fixes #21434
 2023-10-15 20:34:29 +02:00
Tim Ledbetter
9e3ee0e2b5 LibGfx/ILBM: Avoid buffer overrun when reading header chunk 2023-10-15 08:37:27 +02:00
Andreas Kling
a396bb0c0b LibGfx: Remove indexed palette formats from Bitmap and Painter 
Nobody was actually using these formats anymore, and this simplifies
and shrinks the code. :^)
 2023-10-12 07:39:05 +02:00
Andreas Kling
bcbaad0b1d LibGfx: Make BMP decoder always produce BGRA8888 or BGRx8888 bitmaps 
This was the only remaining codec that produced IndexedN bitmaps.
By removing them, we'll be able to get rid of those formats and simplify
the Bitmap and Painter classes.
 2023-10-12 07:39:05 +02:00
Tim Ledbetter
a673062084 LibGfx/BMPLoader: Ensure data offset cannot point past EOF 2023-10-11 14:36:12 -04:00
Sam Atkins
18dfc61280 LibGfx: Expose BitmapFont glyph data as Spans instead of raw pointers 2023-10-10 14:36:25 +02:00
Sam Atkins
80e756daef LibGfx: Load BitmapFont data more safely 
Previously, `load_from_memory()` just took a raw pointer to the data,
and then manually calculated offsets from that pointer. Instead, let's
use the MappedFile we already have, to stream in the data, to make
things a bit safer. We also now check that the entire file's data was
read, since if there was data left over, then either the file is bad or
we've done something wrong.

I've moved the code directly into `try_load_from_mapped_file()` since
`load_from_memory()` was only called from there. The extra indirection
wasn't adding anything.
 2023-10-10 14:36:25 +02:00
Sam Atkins
8e51c7112c LibGfx: Store BitmapFont glyph widths as a Span<u8> 
More raw pointer removal.
 2023-10-10 14:36:25 +02:00
Sam Atkins
f6c40abdb1 LibGfx: Give GlyphBitmap its rows data as Bytes 
Instead of giving it a raw pointer to the start of the font's rows data
and an offset, give it the Bytes for its rows only.
 2023-10-10 14:36:25 +02:00
Sam Atkins
a3b91378df LibGfx: Store BitmapFont rows data as Bytes 2023-10-10 14:36:25 +02:00
Sam Atkins
415a024bc8 LibGfx: Store BitmapFont range mask as Bytes instead of pointer and size 2023-10-10 14:36:25 +02:00
Sam Atkins
533ec5a06f LibGfx: Use Core::System helper for BitmapFont memory allocation 2023-10-10 14:36:25 +02:00
Sam Atkins
89ef3ed4ce LibGfx: Mark BitmapFont::try_clone() as virtual 2023-10-10 14:36:25 +02:00
Sam Atkins
a1c24ef3ad LibGfx: Remove infallible BitmapFont::create() factory function 
This was only used in TestFontHandling. So, let's remove it, and use
the "create" name for the fallible one.
 2023-10-10 14:36:25 +02:00
Tim Ledbetter
bc6638682d LibGfx/BMPLoader: Ensure DIB size and offset are within expected range 2023-10-10 05:50:02 +02:00
Tim Ledbetter
4cc2fc4afa LibGfx/PNGLoader: Remove redundant IHDR bit depth validation 2023-10-08 10:46:00 +02:00
Tim Ledbetter
bc6ae54b59 LibGfx/PNGLoader: Don't allow multiple consecutive IHDR chunks 2023-10-08 10:46:00 +02:00
Tim Ledbetter
c21efdfc8a LibGfx/ICC: Avoid overflow when checking tag bounds 2023-10-07 09:48:01 +02:00
Tim Ledbetter
1abc52a689 LibGfx/DDSLoader: Avoid integer overflow in decode_color_block() 2023-10-06 22:18:27 +02:00
Tim Ledbetter
b25efa219b LibGfx/DDSLoader: Allow image dimensions that are not divisible by 4 2023-10-06 22:18:27 +02:00
Tim Ledbetter
b64ed060d8 LibGfx/PNGLoader: Add validation for IHDR width, height and bit depth 2023-10-06 08:21:58 +02:00
Nicolas Ramz
7b4b5b735b LibGfx/ILBMLoader: Add support for EHB mode 2023-10-03 16:09:55 -06:00
Tim Ledbetter
0b824ab7a6 LibGfx: Check bounds of color table access in TinyVGLoader 2023-10-03 22:59:38 +01:00