skia2/tests/sksl/shared/golden/InstanceID.metal

#include <metal_stdlib>
#include <simd/simd.h>
using namespace metal;
struct Inputs {
};
struct Outputs {
    float4 sk_Position [[position]];
    int id [[user(locn1)]];
    float sk_PointSize [[point_size]];
};

vertex Outputs vertexMain(Inputs _in [[stage_in]], uint sk_VertexID [[vertex_id]], uint sk_InstanceID [[instance_id]]) {
    Outputs _outputStruct;
    thread Outputs* _out = &_outputStruct;
    _out->id = sk_InstanceID;
    return (_out->sk_Position.y = -_out->sk_Position.y, *_out);
}
Add golden outputs for the Metal backend. This CL also updates the blend tests to use sk_FragColor instead of returning a half4, as the Metal backend assumes that a fragment processor's `main` will return void and always synthesizes a `return *_out;` at the end. (context link: https://osscs.corp.google.com/android/platform/superproject/+/master:external/skqp/src/sksl/SkSLMetalCodeGenerator.cpp;l=803;drc=842d31b14159626054e01dd32826563a8f4214bf ) BYPASS_INCLUSIVE_LANGUAGE_REASON=see http://b/168134166 Change-Id: I330a456bf25ee72d3a29c59cd624625378ae80a0 Bug: skia:10649, skia:10757, skia:10758, skia:10759, skia:10760, skia:10761, skia:10762 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/319409 Commit-Queue: John Stiles <johnstiles@google.com> Reviewed-by: Ethan Nicholas <ethannicholas@google.com> 2020-09-25 17:35:58 +00:00			`#include <metal_stdlib>`
			`#include <simd/simd.h>`
			`using namespace metal;`
			`struct Inputs {`
			`};`
			`struct Outputs {`
			`float4 sk_Position [[position]];`
Enforce layout(location=...) on Metal out variables. Previously, this would generate invalid code such as `[[user(locn-1)]]`. We now generate a more-useful error at SkSL compilation time. Change-Id: Ifbe335ec6d4abcbdfe89b892ba51063c94d22b11 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/339397 Auto-Submit: John Stiles <johnstiles@google.com> Commit-Queue: Ethan Nicholas <ethannicholas@google.com> Reviewed-by: Ethan Nicholas <ethannicholas@google.com> 2020-12-01 15:36:37 +00:00			`int id [[user(locn1)]];`
Add golden outputs for the Metal backend. This CL also updates the blend tests to use sk_FragColor instead of returning a half4, as the Metal backend assumes that a fragment processor's `main` will return void and always synthesizes a `return *_out;` at the end. (context link: https://osscs.corp.google.com/android/platform/superproject/+/master:external/skqp/src/sksl/SkSLMetalCodeGenerator.cpp;l=803;drc=842d31b14159626054e01dd32826563a8f4214bf ) BYPASS_INCLUSIVE_LANGUAGE_REASON=see http://b/168134166 Change-Id: I330a456bf25ee72d3a29c59cd624625378ae80a0 Bug: skia:10649, skia:10757, skia:10758, skia:10759, skia:10760, skia:10761, skia:10762 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/319409 Commit-Queue: John Stiles <johnstiles@google.com> Reviewed-by: Ethan Nicholas <ethannicholas@google.com> 2020-09-25 17:35:58 +00:00			`float sk_PointSize [[point_size]];`
			`};`

			`vertex Outputs vertexMain(Inputs _in [[stage_in]], uint sk_VertexID [[vertex_id]], uint sk_InstanceID [[instance_id]]) {`
			`Outputs _outputStruct;`
			`thread Outputs* _out = &_outputStruct;`
			`_out->id = sk_InstanceID;`
Fix codegen errors with Metal return statements. The Metal return type from main() diverges from the SkSL source, so we patch it in the Metal code generator. This CL improves the patching process in multiple ways: - A `return` statement from a fragment processor main() is rewritten to: return _out; - A `return` statement from a vertex processor main() is rewritten to: return (_out->sk_Position.y = -_out->sk_Position.y, _out); - We avoid emitting a duplicate `return *_out;` statement if we can determine that main() already ends in a return statement. This is harmless either way so it doesn't necessarily catch everything. (e.g. it doesn't detect an if/else which returns at the end of both blocks.) Also added a unit test which returns from the middle of a vertex shader, since we didn't test this anywhere and we need to verify that sk_Position.y will be negated. (This didn't work properly before.) Change-Id: I14cf18375894fc712fa6c6466df3888ebaeba7c8 Bug: skia:10903 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/339636 Reviewed-by: Ethan Nicholas <ethannicholas@google.com> Commit-Queue: John Stiles <johnstiles@google.com> Auto-Submit: John Stiles <johnstiles@google.com> 2020-12-01 19:44:56 +00:00			`return (_out->sk_Position.y = -_out->sk_Position.y, *_out);`
Add golden outputs for the Metal backend. This CL also updates the blend tests to use sk_FragColor instead of returning a half4, as the Metal backend assumes that a fragment processor's `main` will return void and always synthesizes a `return *_out;` at the end. (context link: https://osscs.corp.google.com/android/platform/superproject/+/master:external/skqp/src/sksl/SkSLMetalCodeGenerator.cpp;l=803;drc=842d31b14159626054e01dd32826563a8f4214bf ) BYPASS_INCLUSIVE_LANGUAGE_REASON=see http://b/168134166 Change-Id: I330a456bf25ee72d3a29c59cd624625378ae80a0 Bug: skia:10649, skia:10757, skia:10758, skia:10759, skia:10760, skia:10761, skia:10762 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/319409 Commit-Queue: John Stiles <johnstiles@google.com> Reviewed-by: Ethan Nicholas <ethannicholas@google.com> 2020-09-25 17:35:58 +00:00			`}`