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updated PAL VCD mode (768x576 overscanning) to center better: there was a vertical black bar on the right side of the screen (tested with TNT1 on a 4:3 TV.

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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14353 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Rudolf Cornelissen 2005-10-11 19:44:48 +00:00
parent 6e17c55acc
commit 6245f19cbe
1 changed files with 15 additions and 3 deletions
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18
src/add-ons/accelerants/nvidia/engine/nv_brooktreetv.c
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@ -709,7 +709,9 @@ static uint8 BT_init_PAL800_OS()
}
else
{ //set BT value
buffer[7] = 0xc0;//scope: tuned. lsb h_blank_o: h_blank_o = horizontal viewport location on TV
//fixme: checkout ws-tv (added 0x10)..
/* confirmed on TNT1 using 4:3 TV */
buffer[7] = 0xd0;//scope: tuned. lsb h_blank_o: h_blank_o = horizontal viewport location on TV
//(guideline for initial setting: (h_blank_o / h_clk_0) * 64.0uS = 10.0uS for PAL)
buffer[8] = 0x18;//try-out; scope: checked against other modes, looks OK. v_blank_o: 1e active line ('pixel')
}
@ -1470,8 +1472,18 @@ static status_t BT_update_mode_for_gpu(display_mode *target, uint8 tvmode)
break;
case PAL800_OS:
target->timing.h_display = 768; //H_ACTIVE
target->timing.h_sync_start = 848; //set for centered TV output
target->timing.h_sync_end = 848+20; //delta is BT H_BLANKI
if (si->ps.tv_encoder.type <= BT869)
{
//fixme: checkout ws-tv (added 8)..
/* confirmed on TNT1 using 4:3 TV */
target->timing.h_sync_start = 856; //set for centered TV output
target->timing.h_sync_end = 856+20; //delta is BT H_BLANKI
}
else
{
target->timing.h_sync_start = 848; //set for centered TV output
target->timing.h_sync_end = 848+20; //delta is BT H_BLANKI
}
target->timing.h_total = 944; //BT H_CLKI
target->timing.v_display = 576; //V_ACTIVEI
target->timing.v_sync_start = 579; //set for centered sync pulse