vello/piet-gpu/shader/bins.h

// Code auto-generated by piet-gpu-derive

struct BinInstanceRef {
    uint offset;
};

struct BinChunkRef {
    uint offset;
};

struct BinInstance {
    uint element_ix;
    float right_edge;
};

#define BinInstance_size 8

BinInstanceRef BinInstance_index(BinInstanceRef ref, uint index) {
    return BinInstanceRef(ref.offset + index * BinInstance_size);
}

struct BinChunk {
    uint n;
    BinChunkRef next;
};

#define BinChunk_size 8

BinChunkRef BinChunk_index(BinChunkRef ref, uint index) {
    return BinChunkRef(ref.offset + index * BinChunk_size);
}

BinInstance BinInstance_read(BinInstanceRef ref) {
    uint ix = ref.offset >> 2;
    uint raw0 = bins[ix + 0];
    uint raw1 = bins[ix + 1];
    BinInstance s;
    s.element_ix = raw0;
    s.right_edge = uintBitsToFloat(raw1);
    return s;
}

void BinInstance_write(BinInstanceRef ref, BinInstance s) {
    uint ix = ref.offset >> 2;
    bins[ix + 0] = s.element_ix;
    bins[ix + 1] = floatBitsToUint(s.right_edge);
}

BinChunk BinChunk_read(BinChunkRef ref) {
    uint ix = ref.offset >> 2;
    uint raw0 = bins[ix + 0];
    uint raw1 = bins[ix + 1];
    BinChunk s;
    s.n = raw0;
    s.next = BinChunkRef(raw1);
    return s;
}

void BinChunk_write(BinChunkRef ref, BinChunk s) {
    uint ix = ref.offset >> 2;
    bins[ix + 0] = s.n;
    bins[ix + 1] = s.next.offset;
}