S3 changes (and TVP3026) of the day (August 15th, 2024) #4719
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1. TVP3026: disable lut mapping on 24bpp modes (mainly the S3 Vision968 drivers which use the TVP3026 ramdac). 2. S3 Vision968 (MiroVideo 40SV Ergo): Corrected 1280x1024 24bpp resolution. 3. ViRGE class: limit the FIFO entries in the bitblt regs to less than 16 entries and make the Image Transfers FIFO writes wraparound to 1 and reads to 0 (to allow at least a read to a write in the thread without hanging the entire emulator). Fixes Win3.1 PBRUSH colors while keeping performance on par with PCem.
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