Thread (48 messages) 48 messages, 6 authors, 2017-04-06

[BUG] hdlcd gets confused about base address

From: liviu.dudau@arm.com (Liviu Dudau)
Date: 2017-02-20 17:53:31
Also in: dri-devel

Hi Russell,

On Mon, Feb 20, 2017 at 12:16:03PM +0000, Russell King - ARM Linux wrote:
On Fri, Nov 18, 2016 at 11:37:33PM +0000, Russell King - ARM Linux wrote:
quoted
Something I also noticed is this:

        scanout_start = gem->paddr + plane->state->fb->offsets[0] +
                plane->state->crtc_y * plane->state->fb->pitches[0] +
                plane->state->crtc_x * bpp / 8;

Surely this should be using src_[xy] (which are the position in the
source - iow, memory, and not crtc_[xy] which is the position on the
CRTC displayed window.  To put it another way, the src_* define the
region of the source material that is mapped onto a rectangular area
on the display defined by crtc_*.
This problem still exists...
Sorry, looks like this fell through the cracks of us trying to fix the
other issues you were seeing. I'm attaching a patch, please let me know
if this works for you.

Best regards,
Liviu
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