device->ValidateObject dereferences the object and would crash when
the command buffers are nullptr. This issue would have disappeared when
WebGPU error handling is implemented for command buffers. We still fix
it now to please fuzzers.
BUG=dawn:8
BUG=chromium:931880
Change-Id: Ia9d89ebdde9e2ac93de58da2201708c400a712c7
Reviewed-on: https://dawn-review.googlesource.com/c/4740
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Dawn used to return "nullptr" when an error happened while creating an
object. To match WebGPU we want to return valid pointers but to "error"
objects.
This commit implements WebGPU error handling for all "descriptorized"
objects and changes the nullptr error checks into "ValidateObject"
checks. This method is used both to check that the object isn't an
error, but also that all objects in a function call are from the same
device.
New validation is added to objects with methods (apart from Device) so
they check they aren't error objects.
A large number of ASSERTs were added to check that frontend objects
aren't accessed when they are errors, so that missing validation would
hit the asserts instead of crashing randomly.
The bind group validation tests were modified to test the behavior with
both nullptrs and error objects.
Future commits will change the CommandBufferBuilder to not be a builder
anymore but an "Encoder" instead with special-cased error handling. Then
once all objects are descriptorized, the notion of builders will be
removed from the code.
BUG=dawn:8
Change-Id: I8647712d5de3deb0e99e3bc58f34496f67710edd
Reviewed-on: https://dawn-review.googlesource.com/c/4360
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
The fuzzer is able to trigger nullptr reads by failing to create objects
and then using the resulting nullptr in other operations. The proper fix
is to implement WebGPU error handling where creation failure returns a
valid but "error" object.
However implementing this error handling is a lot of work, so in the
meantime we use nullptr checks in relevant places to fix the fuzzer
issue. These checks will be removed once the error handling is changed.
BUG=dawn:8
Change-Id: I6777a7fa40383b3d2235e071c3f0109de7605a22
Reviewed-on: https://dawn-review.googlesource.com/c/2565
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
This change implements timeline fences in Dawn.
It includes methods and descriptor members to eventually
support multi-queue, but does not implement them.
Bug: dawn:26
Change-Id: I81d5fee6acef402fe099227a034d9669a89ab6c3
Reviewed-on: https://dawn-review.googlesource.com/c/2460
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Likewise "presented" textures won't be available for use in submits so
this sets up state-tracking and validation for textures too.
Command buffer resource usage is now stored in the frontend instead of
done per-backend because it is used to validate resources are allowed in
the submits.
Also adds a test.
BUG=dawn:9
Change-Id: I0537c5113bb33a089509b4f2af4ddf4eff8051ea
Reviewed-on: https://dawn-review.googlesource.com/c/2142
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
ObjectBase will contain data that all WebGPU objects have such as a
pointer back to the device, a refcount (via inheriting from RefCounted),
a name, an error status etc.
BUG=dawn:24
Change-Id: I919e1a6d4a68811ceb6e503b2a793815c92f2528
Reviewed-on: https://dawn-review.googlesource.com/c/1620
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
This required putting Queue::Submit on QueueBase which is something we
would want to do anyway, and removes the need for Queue::ValidateSubmit
being called in the ProcTable.
This removes the need for all the "GeneratedCodeIncludes" files and
leads to a bunch of simplifications in BindGroup as well as the
dawn_native CMakeLists.txt.
Finally this was done in order to simplify the writing of BUILD.gn
files.
Corentin Wallez
Austin Eng