mirror of
https://github.com/ekeeke/Genesis-Plus-GX.git
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97 lines
3.0 KiB
Plaintext
97 lines
3.0 KiB
Plaintext
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sms_ntsc Change Log
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-------------------
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sms_ntsc 0.2.3
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--------------
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- Moved configuration options to sms_ntsc_config.h, making it easier to
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manage
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- Greatly clarified and improved demo to read any uncompressed BMP image
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and write filtered image when done
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- Improved gamma to be properly applied to each RGB channel, and changed
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default to compensate for difference between PC monitor and TV gamma
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- Improved contrast to be properly applied to each RGB channel rather
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than just luma
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- Improved floating point calculations in library to be more stable and
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not need double precision, which was causing problems with the sharpness
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control on Windows when the DirectX libraries changed the FPU to single
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precision mode
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- Added extern "C" to header, allowing use in C++ without having to
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rename the source file
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- Made internal changes to factor out code common from all my NTSC
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filter libraries, greatly simplifying things for me
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sms_ntsc 0.2.2
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--------------
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- Changed sms_ntsc_blit() again, this time to always take a pixel count
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for input pitch (since the type is known) and a byte count for the
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output pitch (since it can output at multiple depths now). I think I've
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got the right interface this time. :)
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- Improved default blitter to have selectable input and output pixel
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formats
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- Added parameters for resolution, color bleed, and artifacts
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- Added presets for composite video, S-video, RGB, and monochrome
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- Added SMS_NTSC_OUT_WIDTH() and SMS_NTSC_IN_WIDTH() for calculating
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input/output widths
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- Improved demo with more controls and interpolation and darkening of
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scanlines rather than duplicating them
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- Improved documentation
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- Interface changes: sms_ntsc_blit() takes output pitch in bytes again.
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Sorry for the multiple changes; I think I got it right this time. :)
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- Removed: SMS_NTSC_CALC_WIDTH (use SMS_NTSC_OUT_WIDTH)
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sms_ntsc 0.2.1
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--------------
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- Added parameters for color fringing and edge artifacts
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sms_ntsc 0.2.0
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--------------
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- Changed sms_ntsc_blit() to take pixel counts instead of byte counts
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for in_pitch and out_pitch, making it simpler to use. This requires that
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current code be updated.
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- Significantly improved NTSC signal processing to give clearer image
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and better sharpness control
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- Reduced scrolling shimmer and color artifacts to be closer to what
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console generates
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- Added gamma curve parameter to allow better matching of darker colors
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on a TV
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- Added ability to generate matching RGB palette for use in a normal
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blitter
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sms_ntsc 0.1.1
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--------------
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- Changed sms_ntsc_blit() to accept 12-bit BGR pixels instead of palette
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indicies and a separate palette.
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- Improved sms_ntsc_blit() to accept any input width, allowing all the
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different screen widths to be handled without complication. Use
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SMS_NTSC_CALC_WIDTH() to find the output width for a given input width.
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- Added toggling of left 8 column display to demo
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sms_ntsc 0.1.0
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--------------
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- First version
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