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4 Commits

Author SHA1 Message Date
Stephen White b1d2b84f7d GLSL: fix clip space mismatch in gl_Position. 
OpenGL clips against [-w, w], while WebGPU uses [0, w]. The fix is to
modify gl_Position.z on output to match GLSL semantics. (This is the
same code used by SPIRV-Cross under the fixup_clipspace option.)

Bug: tint:1401
Change-Id: I1b1511352eee11cd9b095cd809aa8e1263c6cf4c
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78261
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
 2022-01-26 14:45:55 +00:00
Stephen White ca4cfb9d6f GLSL: implement interpolation qualifiers. 
Bug: tint:1399 tint:451
Change-Id: Idf02a98d2c51ab4d93847fc24a9d5a447ce3aaa3
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78222
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
 2022-01-25 21:39:05 +00:00
Stephen White 8e01c45e54 GLSL: add location layout qualifier before in/out variables. 
Bug: tint:1398
Change-Id: I89c985d01d539ed166661ee5e858247cde4702b3
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78080
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
 2022-01-25 19:44:14 +00:00
Stephen White 2fe0f4b42b GLSL: add .expected.glsl files for all tests. 
Bug: tint:1301
Change-Id: Id3a591a2fa0dfdb112046d5c57defbae07483e0d
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/69480
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
 2021-11-16 15:15:36 +00:00