Commit Graph

593 Commits

Author SHA1 Message Date
James Price b02fe31e46 wgsl: Add support for increment/decrement statements
Implemented in both the reader and writer with E2E tests. Other
backends will ICE for now.

Bug: tint:1488
Change-Id: Ied2afa55a338347f427dee98a4076643ac432d9c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/86003
Reviewed-by: Ben Clayton <bclayton@google.com>
2022-04-07 13:42:45 +00:00
James Price 2f9e31cefb resolver: Validate increment/decrement statements
These can only be applied to scalar integer references.

These currently cannot be used in a for-loop initializer.

Bug: tint:1488
Change-Id: I218c438c573ff3f5917d058718d12603f9b4057f
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/86002
Reviewed-by: Ben Clayton <bclayton@google.com>
2022-04-07 13:42:45 +00:00
James Price ebe9741d0c ast: Add an IncrementDecrementStatement node
Bug: tint:1488
Change-Id: I9b307a7b53348055af873c137ad6eebbe1dbe5b0
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/86001
Reviewed-by: Ben Clayton <bclayton@google.com>
2022-04-07 13:42:45 +00:00
Corentin Wallez b28d6c8e1c Remove lintcpp from presubmits since it fails on all Dawn files
Also fixes some other lint issues.

Bug: dawn:1339
Change-Id: I19a212218db3249191deedc671fc6e36991ecad8
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/86061
Reviewed-by: Ben Clayton <bclayton@google.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Auto-Submit: Corentin Wallez <cwallez@chromium.org>
2022-04-07 11:36:06 +00:00
Ryan Harrison e87ac76f7d Merge remote-tracking branch 'tint/main' into HEAD
Integrates Tint repo into Dawn

KIs:
- Building docs for Tint is turned off, because it fails due to lack
  of annotations in Dawn source files.
- Dawn CQ needs to be updated to run Tint specific tests
- Significant post-merge cleanup needed

R=bclayton,cwallez
BUG=dawn:1339

Change-Id: I6c9714a0030934edd6c51f3cac4684dcd59d1ea3
2022-04-06 15:37:27 -04:00
Antonio Maiorano a730eb738e Add option to auto generate bindings for external textures
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>
2022-04-06 13:57:54 +00:00
Stephen White b7e560dea0 GLSL: fix "uniform" qualifier on texture parameters.
Textures as function parameters should not have the "uniform"
qualifier. Fixed by handling StorageClass::kUniformConstant the
same as StorageClass::kUniform, and removing the unconditional
"uniform" qualifier output. (Global texture variables have
StorageClass::kUniformConstant set, while function parameters don't.)

Change-Id: I9d380550ac4554917527ff330171a76a90a290e8
Bug: tint:1492
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/85820
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
2022-04-05 18:51:15 +00:00
James Price 0e1f57cbc2 glsl: Implement compound assignment
Use the ExpandCompoundAssignment transform to convert compound
assignments to regular assignments.

Bug: tint:1325
Change-Id: I0567131aa7c6b4beb6e25c0c6c559795e9c58c19
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/85286
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
2022-03-31 22:30:10 +00:00
James Price 16eeff387c spirv: Implement compound assignment
Use the ExpandCompoundAssignment transform to convert compound
assignments to regular assignments.

Bug: tint:1325
Change-Id: I193a09815836755bc1f7138fe1947be39f7b7206
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/85285
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: James Price <jrprice@google.com>
2022-03-31 22:30:10 +00:00
James Price 508a9660a5 hlsl: Implement compound assignment
Use the ExpandCompoundAssignment transform to convert compound
assignments to regular assignments.

Bug: tint:1325
Change-Id: Ic843964ec24d8a2f00f801823f8f8bbf1c6fab5c
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/85284
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
2022-03-31 22:30:10 +00:00
James Price 60107e7435 msl: Implement compound assignment
Use the ExpandCompoundAssignment transform to convert compound
assignments to regular assignments.

Bug: tint:1325
Change-Id: I960bf6cd0ec3490cd58685a7c13b6a7c86395080
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/85283
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
2022-03-31 22:30:10 +00:00
James Price b9b6e69631 Add ExpandCompoundAssignment transform
This transform converts compound assignment statements into regular
assignments, hoisting LHS expressions and converting for-loops and
else-if statements if necessary.

The vector-component case needs particular care, as we cannot take the
address of a vector component. We need to capture a pointer to the
whole vector and also the component index expression:

// Before
vector_array[foo()][bar()] *= 2.0;

// After:
let _vec = &vector_array[foo()];
let _idx = bar();
(*_vec)[_idx] = (*_vec)[_idx] * 2.0;

Bug: tint:1325
Change-Id: I8b9b31fc9ac4b3697f954100ceb4be24d063bca6
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/85282
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
2022-03-31 22:30:10 +00:00
James Price 555c256344 wgsl: Add support for compound assignment
Implemented in both the reader and writer with E2E tests. Other
backends detect compound assignment and ICE for now.

Bug: tint:1325
Change-Id: Ie3f51e03627a38b12bd1513c4bcf1bebb3282863
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/74363
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
2022-03-31 22:30:10 +00:00
James Price c022ff5b49 resolver: Validate compound assignment statements
Reuse the logic for resolving binary operator result types that was
implemented for binary expressions. This validates that the LHS and
RHS are compatible for the target operator. We then try to match the
resolved result type against the LHS store type.

Bug: tint:1325

Change-Id: If80a883079bb71fa6c4eb5545654279fefffacb4
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/74362
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
2022-03-31 22:30:10 +00:00
James Price 4924186bbd ast: Add a CompoundAssignmentStatement node
Bug: tint:1325
Change-Id: I6b5024fd81cd02119d9520e72ab4bdf14eafc3c2
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/85280
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
2022-03-31 22:30:10 +00:00
Ryan Harrison 9d76aa7424 Add proxies for Tint targets used by Chromium
This will ease rolling Dawn into Chromium, once Tint is merged in

BUG=dawn:1343

Change-Id: I53fa7b82a001ab3351f5366e8e045090c0fdb49b
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/85380
Auto-Submit: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Ben Clayton <bclayton@google.com>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2022-03-31 19:54:15 +00:00
Antonio Maiorano b349710476 HLSL: workaround FXC error "continue cannot be used in a switch"
Added a new transform::RemoveContinueInSwitch that replaces continue
statements in switch cases with setting a bool variable, and checking if
the variable is set after the switch to continue.

Bug: tint:1080
Change-Id: I3c0a6c790e1bb612fac3f927a4bd5beb2d0d4ed1
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/84960
Reviewed-by: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
2022-03-31 15:02:25 +00:00
Antonio Maiorano c2e9bb785a Factor out GetInsertionPoint to transform/utils
This function was copy-pasted in two transforms, and will be used in the
next one I'm writing.

Bug: tint:1080
Change-Id: Ic5ffe68a7e9d00b37722e8f5faff01e9e15fa6b1
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/85262
Reviewed-by: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
2022-03-30 20:11:35 +00:00
James Price e6c76095fc builtins: Add smoothstep, deprecate smoothStep
Bug: tint:1483
Change-Id: I8702933312a7e46f82745f232214910433485fe5
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/85261
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2022-03-30 17:57:39 +00:00
James Price 2ec98d961c builtins: Use commas for struct members in tests
The test files were already updated manually in a previous change, so
we just need to update the template file to match.

Bug: tint:1475
Change-Id: I6f1b3d3a7a3df014b58e67ec2645b1dfcc275de1
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/85260
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2022-03-30 17:57:39 +00:00
Antonio Maiorano 66d6668372 Implement discard semantics
Implement new transform UnwindDiscardFunctions that replaces discard
statements with setting a module-level bool, adds a check and return for
this bool after every function call that may discard, and finally
invokes a single function that executes a discard from top-level
functions.

Regenerated tests and remove HLSL ones that used to fail FXC because it
had difficulty with discard.

Bug: tint:1478
Bug: chromium:1118
Change-Id: I09d680f59e2d5d0cad907bfbbdd426aae76d4bf3
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/84221
Reviewed-by: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
2022-03-28 20:51:32 +00:00
Ryan Harrison 3374f43c31 Normalize DEPS to ease merging with Dawn
- Format specific targets to have the hash in the target rule instead
  of a variable.
- Only have the base part of the URL in a variable
- Use vulkan-deps instead of individual DEPS (spirv-tools,
  spirv-headers & glslang)

BUG=tint:1481

Change-Id: I871a656e26050698da2c77f4f39fec94a9c4f8a4
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/84723
Reviewed-by: David Neto <dneto@google.com>
Auto-Submit: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2022-03-28 18:01:02 +00:00
Antonio Maiorano 9e5484264a Implement mixed vector-scalar float % operator
W3C consensus on https://github.com/gpuweb/gpuweb/issues/2450
Spec change: https://github.com/gpuweb/gpuweb/pull/2495

Bug: tint:1370
Change-Id: I85bb9c802b0355bc53aa8dbacca8427fb7be1ff6
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/84880
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
2022-03-28 14:36:31 +00:00
James Price 3b671cb377 wgsl: Separate struct members with commas
Use of semicolons is still supported, but deprecated.

Also updates the parsing methods for structures to better match the
WGSL grammar.

Bug: tint:1475
Change-Id: I7675ba42c13f91080b0ac173c352e0092021f80b
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/84380
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: James Price <jrprice@google.com>
2022-03-28 14:31:22 +00:00
Antonio Maiorano 1006b06c7d Add e2e test for crbug.com/tint/1118
Bug: tint:1118
Change-Id: I1a833ea377fe2f11f58186cdb2e160907c1f05e6
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/84400
Reviewed-by: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
2022-03-23 15:17:03 +00:00
Antonio Maiorano 7419f0e26a Fix test-runner not skipping dirsWithNoPassExpectations
Tests were moved to a new 'tint' subdirectory for the tint -> Dawn
merge, but these paths were not updated.

Also regen'd files for HLSL and a couple are no longer failing.

Change-Id: I11c315d948013ed30635d20e6da565450859cb03
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/84341
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
2022-03-23 15:10:22 +00:00
James Price dfc1a2c081 Remove support for the @stride attribute
We still use the StrideAttribute AST node in the SPIR-V reader for
strided arrays and matrices, which are then removed by transforms.

The WGSL parser no longer has to handle attributes on types.

Bug: tint:1381
Change-Id: Ifa39575ce207d3fdfcbef7125fe6a3686fad5f20
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/83963
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
2022-03-21 16:09:17 +00:00
James Price 1a72a76e4f test: Regenerate vk-gl-cts WGSL sources
This removes @stride, which will soon be invalid.

Bug: tint:1381
Change-Id: I3cbe987edb9b918b2f344b92a4f0fe4838df4a80
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/83962
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
2022-03-21 16:09:17 +00:00
James Price 6bd90d666e Remove support for [[attribute]] syntax
Fixed: tint:1382
Change-Id: I7bebeb59fd0a57a69929e9bf5aa768ae1ff8a33d
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/83961
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
2022-03-21 16:09:17 +00:00
James Price 8bcecf365d Remove @block attribute
Since this was the only attribute allowed on structures, we can also
remove the parsing code for them. However, we still need to have
attributes on the struct AST node, since the AddSpirvBlockAttribute
transform adds one.

Fixed: tint:1324
Change-Id: I7966237765b1d8a58c59908b59e1f1152a8a0439
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/83740
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2022-03-21 16:09:17 +00:00
Antonio Maiorano 93baaae60b PromoteSideEffectsToDecl: add to 4 backends and regen tests
Added to hlsl, msl, glsl, and spirv backends.

Bug: tint:1300
Change-Id: I06062bd8e4b32acbc4a8670b060a7a22bc1ae034
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/80600
Reviewed-by: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
2022-03-15 15:35:13 +00:00
Antonio Maiorano c25ddf4b1c PromoteSideEffectsToDecl: ensure order of evaluation
This transform ensures that expressions are evaluated in the order
defined in the WGSL spec. It does this by making sure to hoist
expressions that have side-effects (calls) along with variables that may
receive these side-effects to lets in the correct order.

Bug: tint:1300
Change-Id: Ic027dc4e0d894beff626a68b5837bd2eed26d8a5
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78620
Reviewed-by: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
2022-03-15 15:03:03 +00:00
James Price bcd9ad2ebb Remove isNan, isInf, isFinite, and isNormal
These were deprecated in M98.

Fixed: tint:1312
Change-Id: Ieec17bfcc729f90d0a9aa8904a162167b9de54ed
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/82800
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: James Price <jrprice@google.com>
2022-03-05 00:39:14 +00:00
Ben Clayton e228319549 utils: Add UniqueAllocator
UniqueAllocator is used to allocate unique instances of the template type.

This will be used to clean up duplicated code we have throughout Tint.

Change-Id: I79d5834bf7c7c31cdefd38d4fa3b9240f7ebbf5f
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/82741
Reviewed-by: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2022-03-05 00:29:15 +00:00
Ben Clayton 4cb1329181 Move BlockAllocator from src/tint to src/tint/utils
Change-Id: I4bca9413d73d0095a3e0de23bcc4de956bf3b98e
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/82740
Auto-Submit: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
2022-03-04 21:09:24 +00:00
Stephen White 80fa1bbd56 GLSL: clean up appending of depth reference.
Just a minor cleanup; no functional change.

Change-Id: Iac4f97c2b5507f7665024885a81f6ccf8e5ab269
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/82440
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
2022-03-02 19:15:03 +00:00
Stephen White ecb570ff64 GLSL: support any() and all() on scalars.
It's a no-op.

Bug: tint:1462
Change-Id: Ic79f33682097be075eb2e99b714d1e65bed10d4d
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/82365
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
2022-03-02 14:39:52 +00:00
Stephen White 628289e17d GLSL: implement abs() on unsigned arguments.
It's a no-op.

Bug: tint:1458
Change-Id: Ib97c409fd806da1c97ac867f21ef42b8a18c178c
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/82364
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
2022-03-02 14:36:52 +00:00
Stephen White b4c338ff37 GLSL: swizzle out the dimension on cube arrays.
Note: ES doesn't support cube arrays, so this fixes the tests but does
not cause them to pass.

Bug: tint:1461
Change-Id: Ia2b1ffacab83dae58ac1b50eb04457da270d73e2
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/82363
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
2022-03-02 14:33:13 +00:00
Stephen White 6c2115ee91 GLSL: fix boolean "not" operator on vectors.
GLSL uses not() for vectors, and ! for scalars.

Bug: tint:1444
Change-Id: I7fa9bdf0b546224737f9cda18428dea7051fe9e5
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/82362
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
2022-03-02 14:15:52 +00:00
Stephen White e4e409f2ae GLSL: remove spurious semicolons.
textureQueryLevels() and textureSamples() were being emitted with a
spurious semicolon.

Bug: tint:1222
Change-Id: I56c561fcaac510b76a27a850f5be522ab7f98307
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/82361
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
2022-03-02 14:14:02 +00:00
Stephen White 66abf3ed14 GLSL: don't emit structs w/runtime-sized arrays.
In GLSL, runtime-sized arrays are only valid in interface blocks, not
in structs. The existing code was attempting to avoid emitting structs
containing runtime-sized arrays but was confused by type aliases in
the AST resulting in arrays being missed.

The fix is to do the work on the semantic types instead, where type
aliases have been resolved.

Bug: tint:1339
Change-Id: I8c305ee9bddd75f975dd13f1d19d623d71410693
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/82360
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
2022-03-02 14:09:22 +00:00
Stephen White 93f686617e GLSL: fix textureGather() and textureGatherOffset() with depth textures.
Unlike other texture functions in GLSL, textureGather() and
textureGatherOffset() do not expect the refZ value to be appended to
the texture coordinates. It is passed as a regular argument. So append
refZ to coordinates by default, and pass as a regular parameter only
for the gather functions.

Bug: tint:1459
Change-Id: Iad1255be3de5915aeff4adb9054479b9e92c45cb
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/82340
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
2022-03-02 14:07:02 +00:00
Stephen White 17601930e4 GLSL: fix textureSampleLevel() on depth textures.
Multiple bugs here:

1) Like texture(), GLSL's textureLod() on depth textures returns a
   scalar, and does not need to be swizzled. So set glsl_ret_width to
   1 in that case.
2) Like texture(), GLSL's textureLod() always requires a Dref
   parameter, so append a zero if not present.
3) GLSL's "lod" parameter to textureLod() is always a float, unlike
   WGSL's textureSampleLevel() which is an i32 for depth textures,
   so cast it.

Along the way, I discovered that textureLod() is not supported on
samplerCubeShadow or sampler2DArrayShadow (even on Desktop GL). So some
tests will never pass. Logged as https://crbug.com/dawn/1313

Bug: tint:1456
Change-Id: If67d8d288704142278d7a4e52b46e8010776f381
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/82300
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
2022-03-02 14:01:00 +00:00
Stephen White 4acf466ff9 GLSL: fix countOneBits().
This change essentially relands 10c554ecf4,
aka https://dawn-review.googlesource.com/c/tint/+/82140.

(Somehow, I managed to revert most of that in the subsequent CL for
reverseBits. I suspect a bad upstream and/or rebase.)

Bug: tint:1430
Change-Id: Iba2688294dcd7d3008ee9da78957a7a464ca1c0f
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/82220
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
2022-03-01 14:25:42 +00:00
Stephen White bee5fa6881 GLSL: implement pack/unpack builtins.
Bug: tint:1428
Change-Id: Ic1db31feb6c6da4a98f6a37b40c77be887662825
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/82200
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
2022-02-28 21:19:02 +00:00
Stephen White 59f1e8d06c GLSL: special-case BinaryOp::kModulo for floating point.
The '%' operator in GLSL is integer-only. Use the full OpFRem
expression: (a - b * trunc(a / b)).

Bug: tint:1270
Change-Id: I0a969983bef132e004ce456d4a738488e400a61b
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/68760
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
2022-02-28 21:15:02 +00:00
Stephen White 9b152e655f GLSL: implement fma().
Bug: tint:1448
Change-Id: I7e331a2eabd507a4babce756fc79d68b0bf7d7be
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/82145
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
2022-02-28 20:03:11 +00:00
Stephen White 7028077a6a GLSL: implement inverseSqrt() and update test expectations.
Bug: tint:1447
Change-Id: I521d021a9177c75badd52ad39ce4db6def48b6ab
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/82144
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
2022-02-28 18:23:17 +00:00
Stephen White 2a02b68453 GLSL: implement fract() builtin function.
Bug: tint:1446
Change-Id: Icb06bb560956372a689db33c758b3d5ad8c27225
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/82143
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
2022-02-28 18:19:47 +00:00