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edid: fix off-by-one error in CEA mode numbering

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The CEA extension short video descriptors contain the VIC, which starts
at 1, not 0.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Hector Martin <marcan@marcan.st>
This commit is contained in:
Hector Martin 2017-11-15 03:12:31 +09:00 committed by Adam Jackson
parent 9bd5a198dc
commit 68556d74b4
1 changed files with 2 additions and 2 deletions
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4
hw/xfree86/modes/xf86EdidModes.c
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@ -970,8 +970,8 @@ handle_cea_svd(struct cea_video_block *video, void *data)
int vid;
vid = video->video_code & 0x7f;
if (vid < CEA_VIDEO_MODES_NUM) {
Mode = xf86DuplicateMode(CEAVideoModes + vid);
if (vid >= 1 && vid <= CEA_VIDEO_MODES_NUM) {
Mode = xf86DuplicateMode(CEAVideoModes + (vid - 1));
*Modes = xf86ModesAdd(*Modes, Mode);
}
}