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compositor-drm: Check that that we have a valid bo for scanout

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If gbm_bo_import does not return a valid buffer for usage of
GBM_BO_USE_SCANOUT don't try and scan out the surface directly.

We've caught the SHM case explicitly earlier - this is to prevent other cases
where the bo cannot be scanned out.

Signed-off-by: Rob Bradford <rob@linux.intel.com>
This commit is contained in:
Rob Bradford 2012-09-14 23:25:41 +01:00 committed by Kristian Høgsberg
parent 6e1e385d51
commit 9b1018702d
1 changed files with 4 additions and 0 deletions
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4
src/compositor-drm.c
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@ -292,6 +292,10 @@ drm_output_prepare_scanout_surface(struct weston_output *_output,
bo = gbm_bo_import(c->gbm, GBM_BO_IMPORT_WL_BUFFER,
es->buffer, GBM_BO_USE_SCANOUT);
/* Unable to use the buffer for scanout */
if (!bo)
return NULL;
/* Need to verify output->region contained in surface opaque
* region. Or maybe just that format doesn't have alpha.
* For now, scanout only if format is XRGB8888. */