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This is done by inserting tokens into the command-buffer stream
when synchronization is needed, and adding a
last-read/last-written token pair to each IPC message. This
allowed me to remove the bogus FinishGL() calls from the gles2
sample pepper plugin.
As part of this CL, the return value for VideoDecodeAccelerator::{Decode,Flush,Abort} changed from bool to void. These are all async methods so errors ought to be signaled using callbacks.
BUG=none
TEST=gles2 works, no crashes; trybots
Review URL: http://codereview.chromium.org/7260008
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@90971 0039d316-1c4b-4281-b951-d872f2087c98
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Enhanced gles2.cc sample plugin to have multipe decodes outstanding at a time,
and assert that we get back from the decode API exactly the bitstream buffers we
sent to it.
This CL is relative to http://codereview.chromium.org/7200033/ which must land first.
BUG=86235
TEST=gles2 sample plugin completes correctly even with concurrent Decode()s.
Review URL: http://codereview.chromium.org/7204038
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@89779 0039d316-1c4b-4281-b951-d872f2087c98
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Startup crash was being caused by deleting the Context3D object out from under a
running OmxVideoDecodeAccelerator, which would trigger a SEGV in the GPU
process, which would cause a Graphics3DContextLost callback to be fired on the
plugin, which is implemented as an assert(false). The delete that kicked all
this off was not actually necessary, so removed it.
During-playback crash was being caused by a lack of synchronization between the
GPU command buffer mechanism and the PPAPI impl IPC mechanism (triggered much
more commonly in DEBUG mode, which explains why these weren't seen so much
before).
While debugging this cleaned up and documented some of the bogusity I found that
I didn't want to clean all in one CL:
- Emit type of unhandled message in GpuChannel, and document TODO to fix poor
code structure that confused me.
- Emit EGL error code on CHECK-failures in EGL<->GLES translator.
- Simplify GpuVideoService a bit and remove redundant map lookups.
- Fix ppapi_tests.gypi: my r89636 was too ambitious and ran into the limits of
my understanding of .gyp. This version is less factored but has the benefit
of producing actually-working example plugins.
BUG=none
TEST=manually running gles2.{html,cc} works every time. No crashes.
Review URL: http://codereview.chromium.org/7200033
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@89775 0039d316-1c4b-4281-b951-d872f2087c98
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BUG=none
TEST=build all newly uncommented targets
Review URL: http://codereview.chromium.org/7204017
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@89636 0039d316-1c4b-4281-b951-d872f2087c98
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BUG=NONE
TEST=NONE
Review URL: http://codereview.chromium.org/7150005
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@89117 0039d316-1c4b-4281-b951-d872f2087c98
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Hopefully useful to future plugin authors who need to use GL as a rendering
engine.
BUG=none
TEST=manual
Review URL: http://codereview.chromium.org/6825003
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@81166 0039d316-1c4b-4281-b951-d872f2087c98
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