skia2/tests/sksl/shared/Uniforms.metal
John Stiles da5cdf6a70 Add default uniform binding value for Metal/SPIR-V.
This allows interface blocks in Metal to compile even if
`layout(binding=...)` is not specified. It will also be used in SPIR-V
in the followup CL, when an interface block is automatically synthesized
for top-level uniforms.

This CL also reorganizes the unit tests around uniforms a bit.

Change-Id: Ia898c536b454dda6f51677e232a8f6e6c3606022
Bug: skia:11225
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/360778
Commit-Queue: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
2021-01-28 19:23:49 +00:00

21 lines
492 B
Metal

#include <metal_stdlib>
#include <simd/simd.h>
using namespace metal;
struct Uniforms {
float myHalf;
float4 myHalf4;
};
struct Inputs {
};
struct Outputs {
float4 sk_FragColor [[color(0)]];
};
fragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
Outputs _out;
(void)_out;
_out.sk_FragColor = _uniforms.myHalf4 * _uniforms.myHalf;
return _out;
}