https://bugs.freedesktop.org/show_bug.cgi?id=89164
Bug ID: 89164
Summary: AMD Kaveri: gbm_bo_get_stride returns wrong values for
cursor buffers
Product: Mesa
Version: 10.4
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Drivers/Gallium/radeonsi
Assignee: dri-devel at lists.freedesktop.org
Reporter: andreas.pokorny at gmail.com
QA Contact: dri-devel at lists.freedesktop.org
When creating a cursor with GBM_BO_USE_CURSOR{_64x64} and a dimension of 64 by
64 pixel the operation succeeds and the returned stride size is always 256.
When drawing the cursor buffer and displaying on screen graphical artifacts
appear. Instead of 128 bytes a stride size of 512 seems to be correct on Kaveri
systems.
For this particular scenario there is a workaround: query 'an arbitrary but
valid cursor buffer size' with DRM_CAP_CURSOR_WIDTH DRM_CAP_CURSOR_HEIGHT.
Still gbm_bo_get_stride should not return a wrong stride size.
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