Commit Graph

7 Commits

Author SHA1 Message Date
Ben Clayton 0e41747281 writer/hlsl: Emit for-loops where possible.
Use the new transforms to try and simplify loops into for-loops.
Emit loops when the initialiser, condition and continuing are simple enough to do so.

Bug: tint:952
Change-Id: I5b3c225b245ffa72996abf6a70f52a9cd25b748e
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/56772
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
2021-07-02 22:17:25 +00:00
Ben Clayton 51b9da45c8 writer/hlsl: Fix level packing for textureLoad()
This was spectacularly broken. Caught by CTS.

Change-Id: Iebf9dd5934be8ef4ec4217d60d5691aee73f5ea3
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/56501
Auto-Submit: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Ben Clayton <bclayton@google.com>
2021-06-30 08:51:36 +00:00
Ben Clayton 165512c57e writer/hlsl: Emit UBO as an array of vector
Instead of a ConstantBuffer.

HLSL requires that each structure field in a UBO is 16 byte aligned.
WGSL has much looser constraints with its UBO field alignment rules.

Instead generate an array of uint4 vectors, and index into this, much
like we index into [RW]ByteAddressBuffers for SSBOs.

Extend the DecomposeStorageAccess transform to support uniforms too.
This has been renamed to DecomposeMemoryAccess.

Change-Id: I3868ff80af1ab3b3dddfbf5b969724cb87ef0744
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/55246
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
2021-06-18 21:15:25 +00:00
Ben Clayton d47eb3a965 writer/hlsl: Generate padding for UBO padded structs
Combined with the new PadArrayElements transform, arrays with strides
are now correctly emitted.

Fixed: tint:182
Fixed: tint:895
Change-Id: I26a1be94dee6e4c9d9747c8317a932fc1fb3c810
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54640
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-06-16 09:50:11 +00:00
Ben Clayton 7e00263c01 wgsl: Remove [[access]] and [[offset]] decorations
These have been deprecated, and their usages in Dawn, CTS and samples have been updated.

Fixed: tint:846
Change-Id: I74b831fd5be2e7ca02e8208835eac8beddcef9af
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54325
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-06-16 09:19:36 +00:00
Ben Clayton 5d2f34ecf2 writer/hlsl: Simplify emission logic, clean up output
And fix issues where global variables would not be emitted unless they were transitively referenced by an entry point.

This change requires crbug.com/tint/697 to be fixed before landing.

Change-Id: I712bd9d369e08c9a3cdfb0f114c3609584f91f28
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54241
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-06-16 09:19:36 +00:00
Ben Clayton 3628949efc test: Add bug cases taken from monorail
Some now pass, some still fail.

If we fix bugs and they begin to pass, we have a better chance of noticing and marking the issues as fixed.

Change-Id: I7278f960967a570ccde8865dcf2aa580235559bf
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54062
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: David Neto <dneto@google.com>
2021-06-10 18:49:14 +00:00