SPIRV-Cross/reference/shaders-msl/asm/comp/buffer-write.asm.comp
Hans-Kristian Arntzen e2c95bdcbc MSL: Rewrite how resource indices are fallback-assigned.
We used to use the Binding decoration for this, but this method is
hopelessly broken. If no explicit MSL resource remapping exists, we
remap automatically in a manner which should always "just work".
2019-06-21 12:54:08 +02:00

24 lines
650 B
Plaintext

#pragma clang diagnostic ignored "-Wmissing-prototypes"
#include <metal_stdlib>
#include <simd/simd.h>
using namespace metal;
struct cb
{
float value;
};
// Returns 2D texture coords corresponding to 1D texel buffer coords
uint2 spvTexelBufferCoord(uint tc)
{
return uint2(tc % 4096, tc / 4096);
}
kernel void main0(constant cb& _6 [[buffer(0)]], texture2d<float, access::write> _buffer [[texture(0)]], uint3 gl_WorkGroupID [[threadgroup_position_in_grid]], uint gl_LocalInvocationIndex [[thread_index_in_threadgroup]])
{
_buffer.write(float4(_6.value), spvTexelBufferCoord(((32u * gl_WorkGroupID.x) + gl_LocalInvocationIndex)));
}