tiny.png.bytesFromImage

1pub fn bytesFromImage(storage: *Storage, image: ImageView) Error![]const u8 {2    const regions = try storage.acquire(image);3    errdefer storage.reset();4    const plan = &storage.capacity.plan;5    var writer = Writer{ .output = regions.output };6    try writer.slice(&signature);7    try writeHeader(&writer, plan);8    try writer.integer(@intCast(plan.zlib_bytes));9    try writer.slice("IDAT");10    const compression_buffer = regions.output[writer.index..][0 .. plan.zlib_bytes + 8];11    const idat = try writer.region(plan.zlib_bytes);12    switch (plan.options.compression) {13        .compressed => try encodeCompressed(14            compression_buffer,15            plan.zlib_bytes,16            image,17            plan.color,18            regions.window,19            regions.raw,20        ),21        .stored => try encodeStored(idat, image, plan.color, regions.raw),22    }23    try writeCrc(&writer, "IDAT", idat);24    try writeChunk(&writer, "IEND", &.{});25    if (writer.index != plan.output_bytes) return error.EncodeInputMismatch;26    return regions.output[0..writer.index];27}

1pub const bytesFromImage = encode.bytesFromImage;