diff options
| author | Arthur Heymans <arthur@aheymans.xyz> | 2018-01-24 13:10:18 +0100 |
|---|---|---|
| committer | Matt DeVillier <matt.devillier@gmail.com> | 2018-02-01 18:57:52 +0000 |
| commit | 85a2c71550eacbad7bf6214ececd7c00aa345455 (patch) | |
| tree | 6d62de86e477fba29a48c77a6188e216995360b9 /payloads/external | |
| parent | 4ad1f7d67e9bd11537557013663d60095efd4a01 (diff) | |
payloads/tianocore: Add a patch to use the proper BytesPerscanline
This fixes tianocore garbled framebuffer when 'x_resolution *
bits_per_pixel / 8' is not equal to 'bytes_per_line'.
This patch was also send to the edk2-devel mailing list:
https://lists.01.org/pipermail/edk2-devel/2018-January/020436.html
Tested on Thinkpad X220 with libgfxinit on 1366x768 display.
Change-Id: Ib9eaf692f86d416cd4ec3cc73a8b0aa0a28a38dd
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/23403
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Diffstat (limited to 'payloads/external')
| -rw-r--r-- | payloads/external/tianocore/patches/07_CorebootPayloadPkg-Use-correct-BytesPerScanLine.patch | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/payloads/external/tianocore/patches/07_CorebootPayloadPkg-Use-correct-BytesPerScanLine.patch b/payloads/external/tianocore/patches/07_CorebootPayloadPkg-Use-correct-BytesPerScanLine.patch new file mode 100644 index 0000000000..6370efca23 --- /dev/null +++ b/payloads/external/tianocore/patches/07_CorebootPayloadPkg-Use-correct-BytesPerScanLine.patch @@ -0,0 +1,31 @@ +From 07dec11fe965e73cfef7df38af70c945b6ff21a2 Mon Sep 17 00:00:00 2001 +From: Arthur Heymans <arthur@aheymans.xyz> +Date: Wed, 24 Jan 2018 10:07:08 +0100 +Subject: [PATCH] CorebootPayloadPkg: Use correct BytesPerScanLine + +Fetch BytesPerScanLine from coreboot table to reflect how the actual +framebuffer is set up instead of guessing it from the horizontal +resolution. + +This fixes a garbled display when HorizontalResolution * (BitsPerPixel +/ 8) and pFbInfo->BytesPerScanLine don't match. + +Contributed-under: TianoCore Contribution Agreement 1.1 +Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> + +diff --git a/CorebootPayloadPkg/FbGop/FbGop.c b/CorebootPayloadPkg/FbGop/FbGop.c +index 37d6def7f7..6790617033 100644 +--- a/CorebootPayloadPkg/FbGop/FbGop.c ++++ b/CorebootPayloadPkg/FbGop/FbGop.c +@@ -822,7 +822,7 @@ FbGopCheckForVbe ( + BitsPerPixel = pFbInfo->BitsPerPixel;
+ HorizontalResolution = pFbInfo->HorizontalResolution;
+ VerticalResolution = pFbInfo->VerticalResolution;
+- BytesPerScanLine = HorizontalResolution * (BitsPerPixel / 8);
++ BytesPerScanLine = pFbInfo->BytesPerScanLine;
+
+ ModeBuffer = (FB_VIDEO_MODE_DATA *) AllocatePool (
+ ModeNumber * sizeof (FB_VIDEO_MODE_DATA)
+-- +2.16.1 + |