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

19 lines
325 B
GLSL

#version 310 es
vec3 tint_float_modulo(vec3 lhs, vec3 rhs) {
return (lhs - rhs * trunc(lhs / rhs));
}
void f() {
vec3 a = vec3(1.0f, 2.0f, 3.0f);
vec3 b = vec3(4.0f, 5.0f, 6.0f);
vec3 r = tint_float_modulo(a, b);
}
layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
void main() {
f();
return;
}