* Add support for writing tEXt chunks
* Add support for reading zTXt chunks
* Add check, if keyword is valid
* Add support for reading iTXt chunks
* Add support for writing iTXt chunks
* Remove Test Decode_TextEncodingSetToUnicode_TextIsReadWithCorrectEncoding: Assertion is wrong, the correct keyword name is "Software"
* Add support for writing zTXt chunk
* Add an encoder Option to enable compression when the string is larger than a given threshold
* Moved uncompressing text into separate method
* Remove textEncoding option from png decoder options: the encoding is determined by the specification: https://www.w3.org/TR/PNG/#11zTXt
* Removed invalid compressed zTXt chunk from test image
* Revert accidentally committed changes to Sandbox Program.cs
* Review adjustments
* Using 1024 bytes as a limit when to compress text as recommended by the spec
* Fix inconsistent line endings
* Trim leading and trailing whitespace on png keywords
* Move some metadata related tests into GifMetaDataTests.cs
* Add test case for gif with large text
* Gif text metadata is now a list of strings
* Encoder writes each comment as a separate block
* Adjustment of the Tests to the recent changes
* Move comments to GifMetadata
* Move Png TextData to format PngMetaData
* Add support for decoding RLE24
* Simplified determining colorMapSize, OS/2 always has 3 bytes for each palette entry
* Enum value for RLE24 is remapped to a different value, to be clearly separate from valid windows values.
* Bitmap Decoder can now decode BitmapArray
* Add tests for bitmap metadata decoing. Fix an issue that a bitmap with a v5 header would be set in the metadata as an v4 header.
* Fixed issue with decoding bitmap arrays: color map size was not determined correctly. Added more test images.
* Refactor colormap size duplicate declaration.
* Fixed an issue, that when an unsupported bitmap is loaded the typ marker was not correctly shown in the error message
* Add bitmap decoder option, how to treat skipped pixels for RLE
* Refactored bitmap tests into smaller tests, instead of just one test which goes through all bitmap files
* Add another adobe v3 header bitmap testcase
* Using the constant from BmpConstants to Identify bitmaps
* Bitmap decoder now can handle oversized palette's
* Add test for invalid palette size
* Renamed RleUndefinedPixelHandling to RleSkippedPixelHandling
* Explicitly using SystemDrawingReferenceDecoder in some BitmapDecoder tests
* Add test cases for unsupported bitmaps
* Comparing RLE test images to reference decoder only on windows
* Add test case for decoding winv4 fast path
* Add another 8 Bit RLE test with magick reference decoder
* Optimize RLE skipped pixel handling
* Refactor RLE decoding to eliminate code duplication
* Using MagickReferenceDecoder for the 8-Bit RLE test
* Implemented encoding of 16 bits per pixel bitmaps
* Add unit tests for 16 bit encoding and Bgra5551 conversion
* Add additional Bgra5551 pixel conversion tests
* Add Bgra5551 tests for Short2/4 and HalfVector2/4
* Use scaled vector conversion
* Bitmap encoder will now write a V3 header as default.
Introduces a new encoder option `SupportTransparency`: With this option a V4 header will be written with BITFIELDS compression.
* Add 4 and 16 bit images to the Identify test
* Add some useful links for bitmap documentation
* Add 32 bpp images to the Identify test
* Added further information on what will change for the encoder, if SupportTransparency is used.
* Added support for OS/2 version 2 bitmaps
* throw NotSupportedException, if the file header type is not BM
* renamed Os2v2 to Os2v2Size
* Added BmpThrowHelper similar to the JpegThrowHelper
* decoding bitmaps with Bitfields masks
* added testcases for Bitfields bitmaps
* added parsing of the complete bitmap V4 header to get the color masks infos for the BITFIELDS compression
* writing now explicitly a Bitamp v3 header (40 bytes)
* added test image for issue #735
* fixed rescaling 5-bit / 6-bit to 0 - 255 range
* BitmapEncoder now writes BMP v4 header
* using MemoryMarshal.Cast to simplify parsing v4 header
* added testcases for bitmap v3, v4, v5
* Bitmap encoder writes again V3 header instead of V4. Additional fields for V4 are zero anyway.
* added parsing of special case for 56 bytes headers
* using the alpha mask in ReadRgb32BitFields() when its present
* added support for bitmasks greater then 8 bits per channel
* using MagickReferenceDecoder reference decoder for the test with 10 bits pixel masks
* changed bitmap constants to hex
* added enum for the bitmap info header type
* added support for 52 bytes header (same as 56 bytes without the alpha mask)
* clarified comment with difference between imagesharp and magick decoder for Rgba321010102
* BmpEncoder now writes a V4 info header and uses BITFIELDS compression
* workaround for issue that the decoder does not decode the alpha channel correctly: For V3 bitmaps, the alpha channel will be ignored during encoding
* Fix#732
Simon Cropp
Ildar
Brian Popow
James Jackson-South
Brian Popow
Anton Firszov
Jason Nelson
Peter Amrehn