skia2/resources/sksl/shared/DeadStripFunctions.sksl
Brian Osman 169c8903be Reland "Add coords parameter to all .sksl test files used as runtime effects"
This is a reland of 22dcb5fd7e

Original change's description:
> Add coords parameter to all .sksl test files used as runtime effects
>
> Convert to use the newer MakeForShader factory, which requires this.
>
> Change-Id: Ifaf6054054027c78f3f3fe15596e435e0f79b877
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/399336
> Commit-Queue: Brian Osman <brianosman@google.com>
> Reviewed-by: John Stiles <johnstiles@google.com>

Bug: skia:11919
Change-Id: I5f745c54b2bc3712f2281db6e067345903e81931
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/401836
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
2021-04-27 20:47:31 +00:00

35 lines
791 B
Plaintext

/*#pragma settings NoInline*/
uniform half4 colorGreen, colorRed;
half4 dead_fn(half4 a, half4 b) {
return a * b;
}
half4 live_fn(half4 a, half4 b) {
return a + b;
}
half4 main(float2 coords) {
const bool TRUE = true, FALSE = false;
half4 a, b;
@if (FALSE) {
// Dead stripping a user function.
half4 unused = dead_fn(half4(0.5), half4(2));
} else {
// A live user function.
a = live_fn(half4(3), half4(-5));
}
@if (TRUE) {
// A live built-in function.
b = unpremul(half4(1));
} else {
// Dead stripping a built-in function. (This is a separate overload of `unpremul`.)
float4 unused = unpremul(float4(-1));
}
return (a != half4(0) && b != half4(0)) ? colorGreen : colorRed;
}