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MSL: Allow post-depth coverage on Mac in MSL 2.3.

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It's still only supported on Apple GPUs, but Macs will have those soon.
This commit is contained in:
Chip Davis 2020-10-27 21:25:43 -05:00
parent 5ae9153a78
commit d48d2a95c7
4 changed files with 48 additions and 3 deletions
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17
reference/opt/shaders-msl/frag/post-depth-coverage.msl23.frag Normal file
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@ -0,0 +1,17 @@
#include <metal_stdlib>
#include <simd/simd.h>
using namespace metal;
struct main0_out
{
float4 FragColor [[color(0)]];
};
[[ early_fragment_tests ]] fragment main0_out main0(uint gl_SampleMaskIn [[sample_mask, post_depth_coverage]])
{
main0_out out = {};
out.FragColor = float4(float(gl_SampleMaskIn));
return out;
}

17
reference/shaders-msl/frag/post-depth-coverage.msl23.frag Normal file
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@ -0,0 +1,17 @@
#include <metal_stdlib>
#include <simd/simd.h>
using namespace metal;
struct main0_out
{
float4 FragColor [[color(0)]];
};
[[ early_fragment_tests ]] fragment main0_out main0(uint gl_SampleMaskIn [[sample_mask, post_depth_coverage]])
{
main0_out out = {};
out.FragColor = float4(float(gl_SampleMaskIn));
return out;
}

11
shaders-msl/frag/post-depth-coverage.msl23.frag Normal file
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@ -0,0 +1,11 @@
#version 450
#extension GL_ARB_post_depth_coverage : require
layout(post_depth_coverage) in;
layout(location = 0) out vec4 FragColor;
void main()
{
FragColor = vec4(gl_SampleMaskIn[0]);
}

6
spirv_msl.cpp
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@ -10092,9 +10092,9 @@ void CompilerMSL::entry_point_args_builtin(string &ep_args)
if (bi_type == BuiltInSampleMask && get_entry_point().flags.get(ExecutionModePostDepthCoverage))
{
if (!msl_options.supports_msl_version(2))
SPIRV_CROSS_THROW("Post-depth coverage requires Metal 2.0.");
if (!msl_options.is_ios())
SPIRV_CROSS_THROW("Post-depth coverage is only supported on iOS.");
SPIRV_CROSS_THROW("Post-depth coverage requires MSL 2.0.");
if (msl_options.is_macos() && !msl_options.supports_msl_version(2, 3))
SPIRV_CROSS_THROW("Post-depth coverage on Mac requires MSL 2.3.");
ep_args += ", post_depth_coverage";
}
ep_args += "]]";