skia2/tests/sksl/shared/StructsInFunctions.glsl
John Stiles 6460541ee4 Reland "Fix Metal codegen error with structs containing compound types."
This reverts commit 3aaed99930.

Reason for revert: removing changes to PrecisionQualifiers

Original change's description:
> Revert "Fix Metal codegen error with structs containing compound types."
>
> This reverts commit 2a6c41571b.
>
> Reason for revert: causing Mali G7x failures on tree
>
> Original change's description:
> > Fix Metal codegen error with structs containing compound types.
> >
> > While working on an unrelated test, I accidentally triggered a bug in
> > Metal code generation. Our struct-equality helper functions did not
> > properly handle vector fields. Wrapping each comparison in `all(...)`
> > fixes the problem. (all() on a scalar is allowed and does nothing.)
> >
> > Our struct comparison tests now include a vector and a matrix.
> >
> > Change-Id: I59061ae9c3c3ab2c2dbdcb5257bc23e2257152af
> > Reviewed-on: https://skia-review.googlesource.com/c/skia/+/470399
> > Commit-Queue: John Stiles <johnstiles@google.com>
> > Auto-Submit: John Stiles <johnstiles@google.com>
> > Reviewed-by: Brian Osman <brianosman@google.com>
>
> TBR=brianosman@google.com,ethannicholas@google.com,johnstiles@google.com,skcq-be@skia-corp.google.com.iam.gserviceaccount.com
>
> Change-Id: Ieb5d5a1839978fb82525863488e9d54fdf44adbd
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/471097
> Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
> Reviewed-by: Chris Dalton <csmartdalton@google.com>
> Commit-Queue: John Stiles <johnstiles@google.com>

Change-Id: I8ee90df3de075cf82c0fcf3b4787577b09bb1a70
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/471156
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Reviewed-by: John Stiles <johnstiles@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
2021-11-15 13:29:06 +00:00

52 lines
1.2 KiB
GLSL

out vec4 sk_FragColor;
uniform vec4 colorRed;
uniform vec4 colorGreen;
struct S {
float x;
int y;
};
struct Nested {
S a;
S b;
};
struct Compound {
vec4 f4;
ivec3 i3;
};
S returns_a_struct_S() {
S s;
s.x = 1.0;
s.y = 2;
return s;
}
S constructs_a_struct_S() {
return S(2.0, 3);
}
float accepts_a_struct_fS(S s) {
return s.x + float(s.y);
}
void modifies_a_struct_vS(inout S s) {
s.x++;
s.y++;
}
vec4 main() {
S s = returns_a_struct_S();
float x = accepts_a_struct_fS(s);
modifies_a_struct_vS(s);
S expected = constructs_a_struct_S();
Nested n1;
Nested n2;
Nested n3;
n1.a = returns_a_struct_S();
n1.b = n1.a;
n2 = n1;
n3 = n2;
modifies_a_struct_vS(n3.b);
Compound c1 = Compound(vec4(1.0, 2.0, 3.0, 4.0), ivec3(5, 6, 7));
Compound c2 = Compound(vec4(colorGreen.y, 2.0, 3.0, 4.0), ivec3(5, 6, 7));
Compound c3 = Compound(vec4(colorGreen.x, 2.0, 3.0, 4.0), ivec3(5, 6, 7));
bool valid = (((((((((x == 3.0 && s.x == 2.0) && s.y == 3) && s == expected) && s == S(2.0, 3)) && s != returns_a_struct_S()) && n1 == n2) && n1 != n3) && n3 == Nested(S(1.0, 2), S(2.0, 3))) && c1 == c2) && c2 != c3;
return valid ? colorGreen : colorRed;
}