ImageSharp

📷 A modern, cross-platform, 2D Graphics library for .NET

c-sharp drawing exif gif graphics hacktoberfest bmp jpeg netcore png tiff webp image-processing

Brian Popow 84ba4bbf0d Decoding Bitmaps with BITFIELDS masks (#796 ) * 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		7 years ago
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CodeCoverage	Update CodeCoverage to use .NETCORE2.1	8 years ago
ImageSharp.Benchmarks	Merge remote-tracking branch 'upstream/master' into jpeg-12bit	7 years ago
ImageSharp.Sandbox46	Remove unused BitMiracle.LibJpeg.NET depedency	7 years ago
ImageSharp.Tests	Decoding Bitmaps with BITFIELDS masks (#796)	7 years ago
Images	Decoding Bitmaps with BITFIELDS masks (#796)	7 years ago