Make WKCACFLayerRenderer robust against temporary failure of Direct3DCreate9 and IDirect3D9::CreateDevice
For a short time after waking from sleep, Direct3DCreate9() will
return an IDirect3D9 for which IDirect3D9::CreateDevice will always
fail. Also during this time period, IDirect3D9::CreateDevice
will fail even for non-bad IDirect3D9s. (It will later start
succeeding.) WKCACFLayerRenderer now works around this behavior by
detecting when it might be in this situation and calling these
functions again later.
Fixes <http://webkit.org/b/39297> <rdar://problem/7997431> WebView
doesn't repaint until page reloads when page using hardware
acceleration loads just after waking from sleep
Reviewed by John Sullivan.
* manual-tests/crash-and-no-repaint-after-wake-from-sleep.html:
Renamed from WebCore/manual-tests/crash-after-wake-from-sleep.html.
Modified to also include instructions for reproducing this bug.
* platform/graphics/win/WKCACFLayerRenderer.cpp:
(WebCore::WKCACFLayerRenderer::WKCACFLayerRenderer): Replaced
m_triedToCreateD3DRenderer with m_mightBeAbleToCreateDeviceLater. The
new member is initialized to true, since we haven't even tried to
create a device once yet.
(WebCore::WKCACFLayerRenderer::createRenderer): If we already have a
D3D device, or we don't have one and are sure that we won't be able to
create one later, just return the previously-created device, if any.
We assume that we won't be able to create a device later if this
function fails, unless the function fails due to CreateDevice failing.
As noted above, CreateDevice will sometimes temporarily fail and then
later start working again. When CreateDevice fails, we also assume
that we might have a bad IDirect3D9, so we get rid of the one we have
so a new (and hopefully non-bad) one will be allocated later.
(WebCore::WKCACFLayerRenderer::destroyRenderer): Reset
m_mightBeAbleToCreateDeviceLater to true, since we no longer have a
device.
(WebCore::WKCACFLayerRenderer::paint): Before trying to paint, try to
create our D3D device and renderer. If this fails, we bail out, but if
we think we might be able to create a device later we schedule another
paint (via renderSoon()) so that we'll try again soon.
* platform/graphics/win/WKCACFLayerRenderer.h: Replaced
m_triedToCreateD3DRenderer with m_mightBeAbleToCreateDeviceLater.
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@59683 268f45cc-cd09-0410-ab3c-d52691b4dbfc
4 files changed
