In order to preserve padding properly for MSL, we need to use its
packed_vec type for all vec3 types in storage buffers, not just struct
members. This commit includes a complete rewrite of the PackedVec3
transform to achieve this. The key details are:
* An internal `__packed_vec3<>` type was added, which corresponds to a
`type::Vector` with an additional flag to indicate that it will be
emitted as packed vector.
* The `PackedVec3` transform replaces all vec3 types used in
host-shareable address spaces with the internal `__packed_vec3`
type. This includes vec3 types that appear as the store type of a
pointer.
* When used as an array element, these `__packed_vec3` types are
wrapped in a struct that contains a single `__packed_vec3`
member. This allows us to add an `@align()` attribute that ensures
that `array<vec3<T>>` still has the correct array element stride.
* When the `vec3<T>` appears as a struct member in the input program,
we apply the `@align()` to that member to ensure that we do not
change its offset.
* Matrix types with three rows that are used in memory are replaced
with an array of columns, where each column uses a `__packed_vec3`
inside an aligned wrapper structure as above.
* Accesses to host-shareable memory that involve any of these types
invoke a "pack" or "unpack" helper function to convert them to the
equivalent type that uses `__packed_vec3` or a regular `vec3` as
required.
* The `chromium_internal_relaxed_uniform_layout` extension is used to
avoid issues where modifying a type in the uniform address space
triggers stricter layout validation rules.
Bug: tint:1571
Fixed: tint:1837
Change-Id: Idaf2da2f5bcb2be00c85ec657edfb614186476bb
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/121200
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
UV plane's coord should be half of that of Y plane for NV12.
Bug: chromium:1415832
Change-Id: Icee851e61eca1f7da291285100f8edcce482b511
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/119860
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Jie A Chen <jie.a.chen@intel.com>
Commit-Queue: Jie A Chen <jie.a.chen@intel.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Do more math on the CPU to avoid per-fragment ALU operations.
Use a mat3x2 instead of mat2x3 to avoid padding.
Fixed: dawn:1614
Change-Id: Ib0e0f7d44ed9aa16eaca712f6553214fad141feb
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/116060
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Brandon1 Jones <brandon1.jones@intel.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Adds functionality to Dawn and Tint to rotate and flip-Y external
textures through the shader transform. Tests are included.
Bug: chromium:1316671
Change-Id: I40a6b67eaeb2a348f469e4879eeb585bc40537b2
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/110181
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Brandon1 Jones <brandon1.jones@intel.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
And remove the WrapArraysInStructs transform.
Wrapping arrays in structures becomes troublesome for `const` arrays, as
currently WGSL does not allow `const` structures.
MSL 2.0+ has a builtin array<> helper, but we're targetting MSL 1.2, so
we have to emit our own. Fortunately, it can be done with a few lines of
templated code.
This produces significantly cleaner output.
Change-Id: Ifc92ef21e09befa252a07c856c4b5afdc51cc2e4
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/94540
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Reviewed-by: David Neto <dneto@google.com>
This is required to handle materialized values, and for constant
expressions.
Bug: tint:1504
Change-Id: Ic3ac62317241fa6f7009360128f222aeb56f62e4
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/92083
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Ben Clayton <bclayton@google.com>
Adds configurable gamma and gamut correction in Tint's external texture
transform. Adds constants in Dawn to perform correct conversion from
BT.709 to sRGB.
Bug: dawn:1082
Change-Id: I68b7ad7ccec29977c637a0a0d4f526cd47fe73d4
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/88367
Commit-Queue: Brandon1 Jones <brandon1.jones@intel.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Reviewed-by: Austin Eng <enga@chromium.org>
Adds configurable gamma and gamut correction in Tint's external texture
transform. Adds constants in Dawn to perform correct conversion from
BT.709 to sRGB.
Bug: dawn:1082
Change-Id: Id5eecc37f0224541bf36e2f9757e7e2047e4b66b
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/87666
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Brandon1 Jones <brandon1.jones@intel.com>
Changes Dawn and Tint to use a 3x3 matrix for external texture
YUV-to-RGB conversions. This will allow us to use standard matrices
as they exist in SkYuvMath.
Bugs: dawn::1082
Change-Id: I8e0c7c3dc1c085d8f336da956aea9496913b70fa
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/86847
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Brandon1 Jones <brandon1.jones@intel.com>
With this change, the backend sanitizers always run the
MultiplanarExternalTexture transform. If the new option is enabled, it
auto-generates bindings for this transform.
This change also enables this auto-generation for the Tint commandline
application, as well as for the fuzzers.
Bug: chromium:1310623
Change-Id: I3c661c4753dc67c0212051d09024cbeda3939f8c
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/85542
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
James Price
jchen10
Ben Clayton
Brandon Jones
Antonio Maiorano