Attachment 298199 Details for Bug 437700 – Fix CRTC vtotal/vdisplay/vsyncstart registers for interlace

[patch] Fix CRTC vtotal/vdisplay/vsyncstart registers for interlace

ati-fix-interlace.patch (text/plain), 1.13 KB, created by Andy Burns on 2008-03-16 17:53:33 UTC

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Creator: Andy Burns

Created: 2008-03-16 17:53:33 UTC

Size: 1.13 KB

patch

obsolete

>--- org/src/legacy_crtc.c	2008-03-15 20:45:22.000000000 +0000
>+++ fix/src/legacy_crtc.c	2008-03-16 17:23:54.000000000 +0000
>@@ -838,6 +838,7 @@
>     int    hsync_start;
>     int    hsync_wid;
>     int    vsync_wid;
>+    int    fix_inter;  
> 
>     switch (info->CurrentLayout.pixel_code) {
>     case 4:  format = 1; break;
>@@ -889,14 +890,17 @@
> 				     ? RADEON_CRTC_H_SYNC_POL
> 				     : 0));
> 
>+				/* fixup for interlaced modes */
>+    fix_inter = (mode->Flags & V_INTERLACE) ? 2 : 1;
>+
> 				/* This works for double scan mode. */
>-    save->crtc_v_total_disp = (((mode->CrtcVTotal - 1) & 0xffff)
>-			       | ((mode->CrtcVDisplay - 1) << 16));
>+    save->crtc_v_total_disp = (((mode->CrtcVTotal * fix_inter - 1) & 0xffff)
>+			       | ((mode->CrtcVDisplay * fix_inter - 1) << 16));
> 
>     vsync_wid = mode->CrtcVSyncEnd - mode->CrtcVSyncStart;
>     if (!vsync_wid)       vsync_wid = 1;
> 
>-    save->crtc_v_sync_strt_wid = (((mode->CrtcVSyncStart - 1) & 0xfff)
>+    save->crtc_v_sync_strt_wid = (((mode->CrtcVSyncStart * fix_inter - 1) & 0xfff)
> 				  | ((vsync_wid & 0x1f) << 16)
> 				  | ((mode->Flags & V_NVSYNC)
> 				     ? RADEON_CRTC_V_SYNC_POL

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Attachments on bug 437700: 298199