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#include <metal_stdlib>
using namespace metal;
typedef struct {
uint value;
uint length;
} FillBufferValue;
kernel void cs_fill_buffer(
device uint *buffer [[ buffer(0) ]],
constant FillBufferValue &fill [[ buffer(1) ]],
uint index [[ thread_position_in_grid ]]
) {
if (index < fill.length) {
buffer[index] = fill.value;
}
}
typedef struct {
uint size;
uint offsets;
} CopyBufferRange;
kernel void cs_copy_buffer(
device uchar *dest [[ buffer(0) ]],
device uchar *source [[ buffer(1) ]],
constant CopyBufferRange &range [[ buffer(2) ]],
uint index [[ thread_position_in_grid ]]
) {
if (index < range.size) {
dest[(range.offsets>>16) + index] = source[(range.offsets & 0xFFFF) + index];
}
}
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