diff options
Diffstat (limited to 'vidix')
| -rw-r--r-- | vidix/drivers/mach64_vid.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/vidix/drivers/mach64_vid.c b/vidix/drivers/mach64_vid.c index b2eb615086..3c3d652082 100644 --- a/vidix/drivers/mach64_vid.c +++ b/vidix/drivers/mach64_vid.c @@ -519,11 +519,22 @@ static void mach64_vid_display_video( void ) OUTREG(SCALER_BUF1_OFFSET_U, besr.vid_buf4_base_adrs); OUTREG(SCALER_BUF1_OFFSET_V, besr.vid_buf5_base_adrs); OUTREG(OVERLAY_SCALE_CNTL, 0xC4000003); +// OVERLAY_SCALE_CNTL bits & what they seem to affect +// bit 0 no effect +// bit 1 yuv2rgb coeff related +// bit 2 horizontal interpolation if 0 +// bit 3 vertical interpolation if 0 +// bit 4 chroma related +// bit 5-6 gamma correction +// bit 7 nothing visible if set +// bit 8-27 no effect +// bit 28-31 nothing interresting just crashed my system when i played with them :( + mach64_wait_for_idle(); vf = INREG(VIDEO_FORMAT); // Bits 16-19 seem to select the format -// Bit 28 seems to toggle the chroma encoding +// Bit 28 seems to toggle something affects luma & chroma // the remaining bits seem to have no effect switch(besr.fourcc) |