James Price 85d2e448de msl: Overload matrix-vector arithmetic operators
These operators are not defined in the metal namespace when the vector
operands are packed.

Fixed: tint:1121
Change-Id: I2e8f4302e08117ca41bac6c05fb24a70d1215740
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/62480
Kokoro: Kokoro <noreply+kokoro@google.com>
Auto-Submit: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-08-23 21:45:23 +00:00

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#include <metal_stdlib>
using namespace metal;
template<typename T, int N, int M>
inline auto operator*(matrix<T, N, M> lhs, packed_vec<T, N> rhs) {
return lhs * vec<T, N>(rhs);
}
template<typename T, int N, int M>
inline auto operator*(packed_vec<T, M> lhs, matrix<T, N, M> rhs) {
return vec<T, M>(lhs) * rhs;
}
struct S {
/* 0x0000 */ float4x3 tint_symbol;
/* 0x0040 */ packed_float3 vector;
/* 0x004c */ int8_t tint_pad[4];
};
fragment void tint_symbol_1(constant S& data [[buffer(0)]]) {
float4 const x = (data.vector * data.tint_symbol);
return;
}