Commit Graph

7 Commits

Author SHA1 Message Date
Austin Eng 51db53fa06 dawn_wire: Harden deserialization routines
- Encapsulate deserialize buffer and size into a DeserializeBuffer
   class. This limits the possible operations so we can be sure
   buffer/size are not manually mutated such that we consume more
   bytes than available.

 - Ensure that memberLength (on deserialization) doesn't narrow (or
   widen). Previously, values were always implicitly cast to size_t.

 - Slight optimization that removes "= nullptr" initialization for
   pointers written by DeserializeBuffer::Read. These
   are always written to on success, so we don't need to initialize
   to nullptr.

Bug: dawn:680
Change-Id: I3779a343e85ff90810707148a952c6ba27cf9d22
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/41521
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Stephen White <senorblanco@chromium.org>
2021-02-18 19:28:29 +00:00
Austin Eng cac0442277 dawn_wire: Support chunked commands
This CL adds support for chunking large commands by first serializing
large commands first into a separate buffer, and then sending the
buffer data chunk by chunk.

This code path is used for large writeBuffer and writeTexture, as well
as the inline memory transfer service for buffer mapping. The transfer
for writeBuffer and writeTexture will be optimized further in Chrome,
and the inline memory transfer service is currently used only in tests.

Bug: chromium:1123861, chromium:951558
Change-Id: I02491a44e653e2383174958d9c3d4a4db6fd7bde
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/28882
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Stephen White <senorblanco@chromium.org>
2020-10-13 22:35:34 +00:00
Austin Eng 518c8e77ab Cleanup: Rename dawn_wire Object "serial" to "generation"
This is a more accurate name and conflicts less with the callback
request serials.

Bug: none
Change-Id: I0f9660c24468064dadffb3ab9b3392d403f93c41
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/19260
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
2020-04-13 17:50:51 +00:00
Austin Eng 8eb8385e2e dawn_wire: Tag deserialize commands with volatile pointer
This prevents bugs where the compiler assumes a piece of memory
will be the same if read from twice.

Bug: dawn:230
Change-Id: Ib3358e56b6cf8f1fbf449c5d564ef85c969d695b
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/11840
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
2019-10-07 20:38:47 +00:00
Austin Eng 1139d1c12c Factor wire client handlers into proper command handlers and doers
Bug: dawn:88
Change-Id: I3ab28efad7edc7d06f11aa5abae07a1bb3d7e59e
Reviewed-on: https://dawn-review.googlesource.com/c/4003
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
2019-01-30 03:00:17 +00:00
Austin Eng cd4fd8e7cd Make the wire Client own ObjectAllocators and CommandSerializer
This moves ownership of ObjectAllocators and CommandSerializers
from the Device to the Client. There may be also be multiple
Devices, so New() now takes the Device the object belongs to.
Device allocation specializes New() to take the owning Client so
that we can get a pointer to the Client from any Dawn API object.

Bug: dawn:88
Change-Id: Ie4274d46313884c44a857159e95d236dc1141c0c
Reviewed-on: https://dawn-review.googlesource.com/c/4001
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
2019-01-30 02:31:37 +00:00
Austin Eng acd8b7d937 Separate WireClient.cpp into multiple files.
This patch copies methods and classes from WireClient.cpp and
distributes them over multiple files. Headers and forward declarations
are added as necessary, but no logical changes are made.

Bug: dawn:88
Change-Id: I9d0fcaeb67e789c3ad0597eaa3839adefc3ac5f9
Reviewed-on: https://dawn-review.googlesource.com/c/3980
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
2019-01-16 02:18:06 +00:00