Ben Clayton 2657b923c9 tint/writer/glsl: Fix vector select
mix of ivec is not core until later GLSL versions.
Just polyfill in the writer with ternary ops.

Change-Id: Ia0c35bf95842e03ef8447019f3264d01c11fd384
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/123240
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Stephen White <senorblanco@chromium.org>
Kokoro: Ben Clayton <bclayton@google.com>
2023-03-08 22:29:38 +00:00

24 lines
631 B
GLSL

#version 310 es
ivec3 tint_select(ivec3 param_0, ivec3 param_1, bvec3 param_2) {
return ivec3(param_2[0] ? param_1[0] : param_0[0], param_2[1] ? param_1[1] : param_0[1], param_2[2] ? param_1[2] : param_0[2]);
}
ivec3 tint_div(int lhs, ivec3 rhs) {
ivec3 l = ivec3(lhs);
return (l / tint_select(rhs, ivec3(1), bvec3(uvec3(equal(rhs, ivec3(0))) | uvec3(bvec3(uvec3(equal(l, ivec3((-2147483647 - 1)))) & uvec3(equal(rhs, ivec3(-1))))))));
}
void f() {
int a = 4;
ivec3 b = ivec3(1, 2, 3);
ivec3 r = tint_div(a, b);
}
layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
void main() {
f();
return;
}