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backend/headless: add support for direct scan-out

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I was about to add a check to fail instead of crash when the compositor
uses direct scan-out, but with renderer v6 it's so simple to just add
support for direct scan-out, why bother?

Closes: https://github.com/swaywm/wlroots/issues/2523
This commit is contained in:
Simon Ser 2020-12-08 00:12:52 +01:00
parent b790e5ea34
commit eb5886ddbe
1 changed files with 17 additions and 7 deletions
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24
backend/headless/output.c
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@ -91,17 +91,27 @@ static bool output_commit(struct wlr_output *wlr_output) {
}
if (wlr_output->pending.committed & WLR_OUTPUT_STATE_BUFFER) {
assert(output->back_buffer != NULL);
struct wlr_buffer *buffer = NULL;
switch (wlr_output->pending.buffer_type) {
case WLR_OUTPUT_STATE_BUFFER_RENDER:
assert(output->back_buffer != NULL);
wlr_renderer_bind_buffer(output->backend->renderer, NULL);
wlr_egl_unset_current(output->backend->egl);
wlr_renderer_bind_buffer(output->backend->renderer, NULL);
wlr_egl_unset_current(output->backend->egl);
buffer = output->back_buffer;
output->back_buffer = NULL;
break;
case WLR_OUTPUT_STATE_BUFFER_SCANOUT:
buffer = wlr_buffer_lock(wlr_output->pending.buffer);
break;
}
assert(buffer != NULL);
wlr_buffer_unlock(output->front_buffer);
output->front_buffer = output->back_buffer;
output->back_buffer = NULL;
output->front_buffer = buffer;
wlr_swapchain_set_buffer_submitted(output->swapchain,
output->front_buffer);
wlr_swapchain_set_buffer_submitted(output->swapchain, buffer);
wlr_output_send_present(wlr_output, NULL);
}