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Attempt MRT-as-array in MSL.

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This commit is contained in:
Hans-Kristian Arntzen 2018-03-13 13:17:17 +01:00
parent fbfe13657a
commit 6e6ca0b237
4 changed files with 88 additions and 3 deletions
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35
reference/opt/shaders-msl/frag/mrt-array.frag Normal file
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@ -0,0 +1,35 @@
#pragma clang diagnostic ignored "-Wmissing-prototypes"
#include <metal_stdlib>
#include <simd/simd.h>
using namespace metal;
struct main0_in
{
float4 vB [[user(locn1)]];
float4 vA [[user(locn0)]];
};
struct main0_out
{
float4 FragColor [[color(0)]][4];
};
// Implementation of the GLSL mod() function, which is slightly different than Metal fmod()
template<typename Tx, typename Ty>
Tx mod(Tx x, Ty y)
{
return x - y * floor(x / y);
}
fragment main0_out main0(main0_in in [[stage_in]])
{
main0_out out = {};
out.FragColor[0] = mod(in.vA, in.vB);
out.FragColor[1] = in.vA + in.vB;
out.FragColor[2] = in.vA - in.vB;
out.FragColor[3] = in.vA * in.vB;
return out;
}

35
reference/shaders-msl/frag/mrt-array.frag Normal file
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@ -0,0 +1,35 @@
#pragma clang diagnostic ignored "-Wmissing-prototypes"
#include <metal_stdlib>
#include <simd/simd.h>
using namespace metal;
struct main0_in
{
float4 vB [[user(locn1)]];
float4 vA [[user(locn0)]];
};
struct main0_out
{
float4 FragColor [[color(0)]][4];
};
// Implementation of the GLSL mod() function, which is slightly different than Metal fmod()
template<typename Tx, typename Ty>
Tx mod(Tx x, Ty y)
{
return x - y * floor(x / y);
}
fragment main0_out main0(main0_in in [[stage_in]])
{
main0_out out = {};
out.FragColor[0] = mod(in.vA, in.vB);
out.FragColor[1] = in.vA + in.vB;
out.FragColor[2] = in.vA - in.vB;
out.FragColor[3] = in.vA * in.vB;
return out;
}

14
shaders-msl/frag/mrt-array.frag Normal file
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@ -0,0 +1,14 @@
#version 310 es
precision mediump float;
layout(location = 0) out vec4 FragColor[4];
layout(location = 0) in vec4 vA;
layout(location = 1) in vec4 vB;
void main()
{
FragColor[0] = mod(vA, vB);
FragColor[1] = vA + vB;
FragColor[2] = vA - vB;
FragColor[3] = vA * vB;
}

7
spirv_msl.cpp
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@ -604,8 +604,9 @@ uint32_t CompilerMSL::add_interface_block(StorageClass storage)
BuiltIn builtin = BuiltIn(get_decoration(p_var->self, DecorationBuiltIn));
if (should_move_to_input_buffer(type_id, is_builtin, storage))
{
move_to_input_buffer(*p_var);
}
else if (!is_builtin || has_active_builtin(builtin, storage))
{
// Add a reference to the variable type to the interface struct.
@ -679,8 +680,8 @@ bool CompilerMSL::should_move_to_input_buffer(uint32_t type_id, bool is_builtin,
if (storage == StorageClassInput)
SPIRV_CROSS_THROW("The fragment function stage_in structure may not include a matrix or array.");
if (storage == StorageClassOutput)
SPIRV_CROSS_THROW("The fragment function output structure may not include a matrix or array.");
//if (storage == StorageClassOutput)
// SPIRV_CROSS_THROW("The fragment function output structure may not include a matrix or array.");
}
}