SPIRV-Cross/reference/shaders-msl/tese/set-from-function.tese
Bill Hollings 0c0fd98322 MSL: Use var name instead of var-type name for flattened interface members.
This allows two variables of the same struct type to be flattened
into the same interface struct without a member name conflict.

Add shaders-msl/frag/in_block_with_multiple_structs_of_same_type.frag
unit test shader to demonstrate this.
2022-03-04 11:38:53 -05:00

64 lines
1.3 KiB
GLSL

#pragma clang diagnostic ignored "-Wmissing-prototypes"
#include <metal_stdlib>
#include <simd/simd.h>
using namespace metal;
struct Block
{
float4 a;
float4 b;
};
struct Foo
{
float4 a;
float4 b;
};
struct main0_out
{
float4 gl_Position [[position]];
};
struct main0_in
{
float4 vColor [[attribute(0)]];
float4 blocks_a [[attribute(2)]];
float4 blocks_b [[attribute(3)]];
};
struct main0_patchIn
{
float4 vColors [[attribute(1)]];
float4 vFoo_a [[attribute(4)]];
float4 vFoo_b [[attribute(5)]];
patch_control_point<main0_in> gl_in;
};
static inline __attribute__((always_inline))
void set_from_function(thread float4& gl_Position, thread patch_control_point<main0_in>& gl_in, thread float4& vColors, thread Foo& vFoo)
{
gl_Position = gl_in[0].blocks_a;
gl_Position += gl_in[0].blocks_b;
gl_Position += gl_in[1].blocks_a;
gl_Position += gl_in[1].blocks_b;
gl_Position += gl_in[0].vColor;
gl_Position += gl_in[1].vColor;
gl_Position += vColors;
gl_Position += vFoo.a;
gl_Position += vFoo.b;
}
[[ patch(quad, 0) ]] vertex main0_out main0(main0_patchIn patchIn [[stage_in]])
{
main0_out out = {};
Foo vFoo = {};
vFoo.a = patchIn.vFoo_a;
vFoo.b = patchIn.vFoo_b;
set_from_function(out.gl_Position, patchIn.gl_in, patchIn.vColors, vFoo);
return out;
}