Commit c5724a8db5d7858d1c2eabde63a074a1d7c41859
2022-11-17T15:48:16
Vulkan: Retain mCurrentGraphicsPipeline if RP started ContextVk::mCurrentGraphicsPipeline is created before renderpass started. Right now we retain mCurrentGraphicsPipeline immediately. In future CL of per context queue serial, renderpass will not have queue serial until started, which means we can only retain pipeline object after renderpass started. This CL moves the mRenderPassCOmmands.retain(mCurrentGraphicsPipeline) call to renderpass start time. This exposed a bug that ContextVk may have a dangling mCurrentGraphicsPipeline pointer to an already destroyed object, if the program has been destroyed. When ProgramExecutableVk::resetLayout() calls ContextVk::onProgramExecutableReset () we early out because executable no longer matches. This causes mCurrentGraphicsPipeline still point to now deleted pipeline object. This CL fix this dangling pointer bug by always clear mCurrentGraphicsPipeline to null in ContextVk::onProgramExecutableReset() without checking if program executable is the one gets reset. Bug: b/255414841 Change-Id: I6d698c517d7a948b65c465eaaa59ea0bca24e2c8 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4035107 Commit-Queue: Charlie Lao <cclao@google.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Yuxin Hu <yuxinhu@google.com>