Evan Husted 852823104f
EXPERIMENTAL: Metal backend (#441)
This is not a continuation of the Metal backend; this is simply bringing
the branch up to date and merging it as-is behind an experiment.

---------

Co-authored-by: Isaac Marovitz <isaacryu@icloud.com>
Co-authored-by: Samuliak <samuliak77@gmail.com>
Co-authored-by: SamoZ256 <96914946+SamoZ256@users.noreply.github.com>
Co-authored-by: Isaac Marovitz <42140194+IsaacMarovitz@users.noreply.github.com>
Co-authored-by: riperiperi <rhy3756547@hotmail.com>
Co-authored-by: Gabriel A <gab.dark.100@gmail.com>
2024-12-24 00:55:16 -06:00

30 lines
709 B
Metal

#include <metal_stdlib>
using namespace metal;
struct CopyVertexOut {
float4 position [[position]];
float2 uv;
};
struct Textures
{
texture2d_ms<uint, access::read> texture;
};
struct FragmentOut {
uint stencil [[stencil]];
};
fragment FragmentOut fragmentMain(CopyVertexOut in [[stage_in]],
constant Textures &textures [[buffer(TEXTURES_INDEX)]],
uint sample_id [[sample_id]]) {
FragmentOut out;
uint2 tex_size = uint2(textures.texture.get_width(), textures.texture.get_height());
uint2 tex_coord = uint2(in.uv * float2(tex_size));
out.stencil = textures.texture.read(tex_coord, sample_id).r;
return out;
}