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bsnes WIP

Ice, 08:23, 22-01-2006

byuu, автор эмулятора bsnes, сообщает о прогрессе своего эмулятора консоли Nintendo Super NES/Famicom:

01/18/2006

Ugh

I hate this new work arrangement so much.
The Direct3D renderer now works even on the lousy ATI Radeon 7500. I killed the scanline support I had and replaced it with a much simpler approach. It works like ZSNES' scanlines now. And at that, only with the slower D3D renderer. I may try to add back in more complex scanlines sometime in the future. Definitely not until I replace this worthless video card.
Aside from scanlines, I also added crc32 calculation for ROM images. I don't presently do anything with them, but I eventually plan to use them to index a database for a frontend-style ROM loader complete with screenshots and joypad control. The old Windows-based ROM loader will still be there too, of course.
I also added RGB<>YCbCr translation. Tried to use it to improve some things, but not having much luck, as I just realized that the Y component is essentially the green color plus luminance in one. So adjusting Cb/Cr only just results in your green colors being way off. Not very useful. Luminance seems to be best controlled by adjusting the R/G/B channels by the same percentage. At the very least, perhaps I can create some TV-style adjusters such as brightness / tone / contrast with this conversion. Who knows.
I still desperately need to finish separating the CPU / APU processor emulation from their respective controller classes (that handle DMA, interrupts, etc). Maybe this weekend.
Basically, I have a lot more time to think of good ideas, and zero time to add any of them.

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