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tint/writer/glsl: Set default precision to highp

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WGSL states that `f32` is a IEEE-754 binary32. mediump precision guarantees are much smaller than highp, and using mediump can break code generated by tint.

Change-Id: I8a129c4c8ac078c785e0d5d7d21f19ed6b3620b5
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/123400
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Stephen White <senorblanco@chromium.org>
This commit is contained in:
Ben Clayton
2023-03-09 19:58:23 +00:00
committed by Dawn LUCI CQ
parent 4fea9d0fbb
commit f1f56b2d3c
2871 changed files with 2908 additions and 2908 deletions
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2
test/tint/unicode/comments.wgsl.expected.glsl
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@@ -1,5 +1,5 @@
#version 310 es
precision mediump float;
precision highp float;
void tint_symbol() {
}

2
test/tint/unicode/identifiers.wgsl.expected.glsl
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@@ -1,5 +1,5 @@
#version 310 es
precision mediump float;
precision highp float;
float tint_symbol_2(int tint_symbol_3) {
return float(tint_symbol_3);